UA45316C2 - METHOD OF OBTAINING SLIDES OF INTERMEDIATE THICKNESS, INSTALLATION FOR ITS IMPLEMENTATION AND CAPACITY FOR STORAGE OF SLABS - Google Patents

Abstract

A method of production of slabs of intermediate depth including selective supply of every slab into a continuous technological line is implemented on the plant, which plant includes a device for continuous molding of a strip forming a thread of intermediate depth, cutter for thread cutting into great number of slabs of required length, device of alternation and storage of slabs, one or two heating furnaces for selective heating of slabs, feed and working roller at the exit of one heating furnace, one- or two stand reversing mill of hot rolling for rolling a slab to the depth of winding into roll according to the plurality of passes of unrolling and a pair of furnaces with a reel located on the opposite sides of said reversing mill of hot rolling. Method, plant and container provide for independent operation of different areas of technological line, in particular, possibility of separation of pouring and rolling in case of delay at one end of the line, possibility of storage of hot slabs in case of delay in rolling, possibility of easy supply of cold slabs into the line, or possibility of continuation of continuous pouring in case of an accident downstream technological line, and also provide for hard contact of stockpiled hot slabs and minimal heat losses of everyone of them.

Description

Description of the invention

The present invention relates to rolling and casting production, namely to continuous 2-cast slab rolling, in particular, to an installation that combines a device for continuous casting of slabs with intermediate thickness and a reversible state of hot rolling, adapted for receiving slabs in the order of their sequence, their storage and subsequent rolling of products of thin calibers.

Ever since continuous casting of slabs appeared in the steel industry, companies have sought to combine the hot-rolling strip mill with the continuous casting device by installing it in one combined line or single plant in order to maximize productivity and minimize the necessary equipment and capital investment. . Initial attempts in this regard consisted in a combined device for continuous casting, producing slabs with a thickness of about 6 to 10 inches (from 152.4 to 254 millimeters), with existing continuous or semi-continuous strip hot rolling mills. Zty the existing strip stand! hot 19 rolling mills include a heating furnace, a draft line of the mill (or a reversible draft mill) and six or seven finishing mill mills with a capacity of 1.5 to 5 million tons (from 1.4 to 4.5 metric tons) per hour. Such devices currently belong to the designs of hot rolling mills, produced by large steel casting companies, and it does not seem like a new strip mill! such constructions can destroy buildings! due to high capital investments. The search for low-cost unified casting devices of hot casting strip mills cannot be solved by modern designs. In addition, such state-of-the-art unification systems are considered to be exclusively unsuitable for mixed product relations and, therefore, for the current generally accepted requirements of the market.

These difficulties caused the development and improvement of the so-called continuous strip mills for hot rolling of thin slabs, which normally produce 1,000,000 tons (907,185 metric tons) of steel per 22 hours in the form of standard products. Such units are combined or integrated with casting devices (39 thin slabs with a thickness of about two inches (50.8 mm) and less. Such integrated units for casting thin slabs are increasingly popular, but they themselves have a number of serious disadvantages.

The significant disadvantages are the quality and quantity of limitations associated with thin slab casting installations. In particular, casting molds with a central sprue, necessary for providing metal at 30 for thin slabs, can cause more forces! friction and tension on the surface of the thin wall of the slab, which leads to poor surface quality of the product. In addition, two-inch strip casting installations! (50.8mm) limited only by the term of service! pouring ladle or box, which consists of about seven melts, due to the limited volume of the metal of the forms! or its capacity. yu

It is more important that installation of pouring thin slabs is inevitable! pour with vIsokoy

With the speed to prevent metal cooling in modern devices of ladles when they are arranged. M

That, in the end, requires that the tunnel furnaces, which are located downstream immediately behind the installation of casting thin slabs, are as long as possible, often on the order of 500 feet (152.4 meters), so that! correspond to the speed of the slab and still be able to provide heat supply to a thin slab (two-inch 50.8 mm), which loses heat at a very high rate. Since the slab also comes out of the furnace at a high speed, it is necessary to! The multi-cell continuous hot rolling mill was adapted to the rapid movement of the strip and rolled it to the thickness of the sheet and strip. However, such a system is still unbalanced to the normal width, since the casting plant has a capacity of about 80,000 tons (72,575 metric tons) per hour, and the continuous mill has a capacity of at most 5 million tons (4.54 million metric tons) per hour. The capital investment of such systems then approaches the capital investment of the previously known state-of-the-art systems that it is supposed to replace. sl In addition, the loss of remains! in percentage relation to the thickness of the slab for casting a thin two-inch slab (50.8 mm) is quite significant. Due to the very large long furnace, it is necessary to provide a long roller floor, which requires very intensive care and maintenance due to the opening of up to 70 rotating rollers.

From those two-inch (50.8 mm) slabs, they offer to roll hot-rolled strips or tapes! small calibers of the order of 0.040 inch (1.016 mm). However, in the case of low-carbon steels, the thermal drop in the multi-cell continuous state is too great, which makes it impossible to achieve the necessary finishing temperatures, and, as reported, in the case of low-alloy high-strength steels, slabs two inches thick do not provide the reduction required for high-strength low-alloys

HF) steels, which is then the cause of the coarse microstructure, which then needs to be crushed by means of a special heat treatment, more intensive and long-lasting than for cold loading or loading of microalloyed steel of the same grade. ("Oriitizayop oi poi goiipud zspeacie Tog aighesi spagoaipa oi (pip ziarz oi МЬ-M tisgoaiPouea zieee!" M. 7epiaga apa K. Kagzrag, Mayiepgia! Zsiepse apa Tesppoiodu, May 1994.) 60 General multi-cell state of hot rolling of strips! analogously requires a significant amount of work in a short period of time, which must be provided by a greater capacity (in horse power) of the rolling cages, which in some cases may exceed the deenergizing capabilities of this area, especially in the case of developing countries. width of the product due to the difficulty of using vertical wells for two-inch slabs (50.8 mm). Additional problems associated with thin slab casting installations include problems associated with preventing the formation of various inclusions on the surface of the thin slab during the steelmaking process, where such inclusions can lead to superficial def ektam, if they are open. In addition, existing systems! limitation! in Removed scum), because thin slabs! they lose heat very quickly and, therefore, are exposed to the harmful effects of high-pressure water, which is commonly used to break up scale.

In addition, the process of processing thin strips! it can only be carried out continuously, which means that a breakdown or an accident in any place stops the process in the entire line and often forces the entire product to be cut after processing. 70 Integration of slab casting plant with any hot rolling mill requires synchronization of casting and slab rolling. Without the possibility of decoupling casting and rolling slabs in such an integrated system, an accident or breakdown somewhere in the process stops the entire line and can lead to the need to cut the entire product after processing. Casting and rolling of slabs can be effectively separated by providing the possibility to transfer the slab casting to the slab storage area. 7/5 However, the solution is ineffective. The slab is transferred to the external storage area, so that when the condition is turned on again, it is to bring the slabs to the appropriate temperature! rolling requires a significant amount of energy. To solve this particular problem! several second attempts were made. They include holding or storing hot slabs in a heating furnace or in a heat-insulated chamber.

However, these solutions also have some disadvantages, including the involvement of large capital investments of 20 M of space required for this.

As a prototype of the proposed invention, a method of obtaining slabs of intermediate thickness is adopted, which includes continuous casting of a thread of intermediate thickness, cutting the thread into a set of slabs of a given length, passing the slab to be processed, passing it back and forth through the reversible state of hot rolling to form an intermediate product with a sufficient thickness for rolling into a roll, from rolling into a roll of an intermediate product in one of the furnaces with a winder, and passing the rolled-into-a-roll intermediate product back and forth through the reversible state of hot rolling for crimping or rolling i) the rolled-up product into a final product of the required thickness, while the intermediate the product is collected in and fed from each furnace with a roller on each pass through the reversible state of hot rolling (UMO application 93/23182, MPKU: В218 1/04, 25.11.1993 G.). Gee)

As a prototype of the proposed installation, an installation for casting slabs of intermediate thickness, combined with a line of hot rolling of strips and thick sheets, containing means for - continuous casting of strips for the formation of thread of intermediate thickness, installed in the cutter line, "from the position downstream of the means for castings for cutting threads into slabs of the required length, at least one heating furnace, located downstream of the means of storage and alternation of slabs, feeding and working roller conveyor, located at the entrance end, at least one "And heating furnace, located downstream of the means of storage and alternation of slabs, feeding and working roller conveyor, located at the exit end, at least one heating furnace, a reversible hot rolling mill and a pair of furnaces with a winder, one of which is located ahead of the flow of the reversible hot rolling mill , and the second one is located downstream, with a furnace and with a winder

Executions with the possibility of receiving and unwinding an intermediate product when it is passed between furnaces and) with a reel and through a reversible state of hot rolling for compression or rolling into a product of final thickness! a (application MUO 93/23182, IPC: В21В8 1/04, November 25, 1993). ,» As a prototype of the proposed invention, a container for storing slabs, equipped with means for holding slabs, and located between the installation of continuous casting and the reversible hot rolling mill (application UUO 93/23182, MPKOU: В218 1/04, 25.11.1993) was also adopted. . The well-known method involves feeding a slab cut with a gas cutter, cast into a slab casting device, using a conveyor directly into a furnace for secondary heating or into a set of slabs and a container for their storage. If necessary, the method provides for feeding the slab from the warehouse to the furnace, and then for further processing in the technological line. шу 70 The main drawback of the known method is the impossibility of ensuring the synchronization of the pouring and slab rolling processes. As a rule, the slab is transferred to the external storage area, and at the moment when it is repeated 4" the condition is started to bring the slabs to the appropriate temperature! rolling, necessary! significant expenditure of energy. This method does not provide for the possibility of selective (selective) trajectories for the advancement of metal slabs depending on the prevailing specific technological conditions 25 of the process and the requirements that are imposed on it. o The disadvantage of the known installation is the absence of structural units and elements that could provide selective supply of slabs, linked to the conditions of the technological process. In addition, the placement of the roller conveyors of the installation suggests a directed supply of slabs through the furnace, which is completely unjustified in the case when the castings have a temperature high enough to 60 for immediate rolling and the use of a heating furnace becomes unnecessary.

The disadvantage of the known capacity for storing slabs lies in the imperfection of its structural design, which does not allow for their selective advancement along the technological line. In addition, slack! in the capacity of accommodation! without taking into account the temperature influence on each other, as a result of which there is a significant heat loss in the container itself. 65 The invention is based on the task of ensuring the possibility of integrating pouring and rolling of slabs with reduced capital expenditure in the method of obtaining slabs of intermediate thickness! by selectively feeding each slab either to the technological line, or to the furnace, or to the storage area, and then to the furnace, which ensures the independent functioning of various sections of the technological line, in particular, the possibility of separating casting and rolling in case of delays at one of the ends of the line, the possibility of storing hot slabs in the event of a delay in rolling, the possibility of easy delivery of cold slabs to the line, or the possibility of continuing uninterrupted casting in the event of an emergency downstream of the technological line, as a result of which the flexibility of the technological process increases.

The basis of the invention is also the task of creating a highly effective, cost-effective, matching casting speed with the rolling speed of the installation for obtaining slabs of intermediate thickness! by 7/0 equipping it with a means of storing and alternating slabs for their selective storage and alternating, as well as optimization of the constructive connection between the feeding and working roller conveyor, in particular, placing them in one row, which ensures the independent functioning of different sections of the technological line, in particular, the possibility of separating casting and rolling in the event of a delay at one end of the line, the possibility of storing hot slabs in the event of a delay in rolling, the possibility of easy /5 delivery of cold slabs to the line, or the possibility of continuing continuous casting in the event of accidents further down the flow of the technological line, and also gives the opportunity to bypass the heating furnace in cases when the temperature of the slabs is sufficient for rolling.

The invention is also based on the task of increasing the efficiency of using a capacity for storing slabs by filling it in the form of a container and with the possibility of selective reception of slabs, as well as creating conditions for the optimal relative arrangement of the latter inside the container, which ensures the independent functioning of various sections of the technological line, in particular, the possibility of separating casting and rolling in the event of a delay at one end of the line, the possibility of storing hot slabs in the event of a delay in rolling, the possibility of easy delivery of cold slabs to the line, or the possibility of continuing uninterrupted casting in the event of an emergency further down the stream; of the technological line, and the hot slabs that are placed in a stack are in close contact with each other, and thus the heat loss of each of them is minimized.

The task is achieved due to the fact that in the method of obtaining slabs of intermediate thickness, which includes continuous casting of thread of intermediate thickness, cutting the thread into a set of slabs of a given length, passing the slab to be processed, passing it back and forth through a reversible state of hot rolling to form an intermediate product with a thickness sufficient for coiling, coiling the intermediate product in one of the furnaces with a winder, and passing the coiled intermediate product 87 back and forth through the reversible state of hot rolling to compress or roll the coiled product into the final product of the required thickness , while the intermediate product is collected and fed from each furnace with a coiler to each pass through the reversible state of hot rolling, according to 5 Mzobreteniya, carry out the selective supply of each slab or to a continuous technological line, "including the reversible state of hot rolling, having a furnace with a coiler on the front and back sides of it, or to the in-line heating furnace, from which the slab enters the continuous technological line, or to the slab storage area and then transfer of the slab to the in-line heating furnace. "

At the same time, at least one slab to be processed is additionally fed into the heating furnace installed in t) c line and a continuous technological line from the slab storage area, and . do they use a slab that is cast in a device for casting slabs of intermediate thickness or in a second one?" installation

In the proposed method, a slab storage area is used, which includes at least one

The container, vertically stacking the slab, or includes a zone of collection and storage of slabs, while the second heating furnace is located adjacent to the heating furnace installed in the line.

The task is also solved due to the fact that the installation for casting slabs of intermediate thickness) combined with the line of hot rolling of strips and thick sheets, containing means for continuous casting of strips for the formation of thread of intermediate thickness, installed in the line of the cutter, located downstream о means for pouring, for cutting threads into a slab of the required length, at least one heating furnace located downstream о means of storage and rotation

F slabs, feeding and working roller conveyor, located at the input end of at least one heating furnace, a reversible hot rolling mill and a pair of furnaces with a winder, one of which is located in front of the flow of the reversible hot rolling mill, and the other is located downstream, 5 with a filling furnace with a coiler with the possibility of receiving and unwinding an intermediate product when it is passed between furnaces with a coiler and through the reversible state of hot rolling for compression or (Ф, rolling into a product of final thickness, according to the invention, contains a means for storing and alternating the slabs for selective storage and alternation of vibrating slabs, while the reversible hot-rolling condition is installed in line with the feeding and working roller gang for compressing or rolling the slab coming out of the heating furnace into an intermediate product with a thickness sufficient for rolling into a roll.

In addition, the installation additionally includes a slab conveyor installed in line with the cutter, and the means for alternating and storing the slabs includes a slab transfer means adjacent to the slab conveyor installed across the slab conveyor and communicating with the feed and working roller conveyor, and a collection area and storage of slabs, attached to the means of transfer of slabs, 65 adapted to the selective reception of slabs from it.

In addition, the proposed installation can additionally contain a pair of heating furnaces, while the first heating furnace is located between the feeding and working roller conveyors and the conveyor for slabs, and the second heating furnace is located downstream and adjacent to the first heating furnace, and its inlet end is combined with the conveyor for slabs, and its entrance is combined with a feeding and working roller conveyor.

The feed and working roller conveyor of the installation is installed in one line with the cutter with the possibility of receiving slabs directly from it, while the means of alternating and storing the slabs includes a means of transferring the slab adjacent to the feed and working roller conveyor, and installed across the feed and working roller conveyor for selective removal of slabs from a feeding and working roller conveyor, a conveyor for 7/0 slabs adjacent to the means of slab transfer and installation with the possibility of receiving slabs from it to the adjacent slab collection and storage area.

The installation may also additionally include a conveyor for slabs, installed in one line with the cutter, while the means of storage and alternation of slabs includes at least one vertically stackable capacity for slabs, filled in the form of a container, located adjacent to /5 conveyor for slabs, at the same time, the container includes a vertically movable cart for supporting a stack of slabs.

The task is also solved by the fact that the container for storing slabs, equipped with means for holding slabs, and located between the installation of continuous casting and the reversible hot rolling mill, according to the invention, is filled in the form of a container and with the possibility of selective reception of slabs from the installation for casting, when therefore, the container contains a vertically movable cart, installed with the possibility of engagement with the lowest slab from the installations in the stack inside the container, which are in direct contact with each other.

The slab received either from the installation for casting slabs of intermediate thickness, or from the container for slabs (if it is provided), or from the area of collection and storage of slabs, is fed to the heating furnace in the s g line. The slab to be rolled vibrates from the heating furnace on a continuous technological line, which includes a reversible state of hot rolling, having a furnace with a winder on each of its sides upstream and downstream. The slab to be processed is passed back and forth through the reversible state to form an intermediate product of such thickness that it can be rolled into a roll.

The intermediate product is rolled into a roll in one of the furnaces with a winder. The rolled intermediate product (o z is passed back and forth through a state for compressing or calcining the product rolled into a roll into a final product of the required thickness, the intermediate product is collected and eaten from each furnace with a winder on - each pass through the reversible state of hot rolling. The final product can beat finished cleanly or (in the form of a roll of thick sheet metal, separate plates! of thick sheet metal or in the form of a sheet rolled into a roll. o

The method according to the present invention provides also that some roll! the slabs can bypass the heating furnace on a bypass roller conveyor, if the temperature of the slabs is sufficient for rolling; in addition, some of the slabs may be supplied to the heating furnace from an external source (ie, slabs that were not cast by means of an installation for casting slabs of intermediate thickness!). These slabs from an external source may have a thickness greater than the thickness of the slabs obtained by means of the installation for casting slabs of intermediate thickness, and/or have a chemical composition different from the chemical composition that may be obtained in the smelting/refining furnace associated with casting plant. The reversible hot rolling mill of the present invention includes a pair of rolling cages; stan, devices for work! in tandem, and additionally include an adjustable vertical source located between a pair of rolling mill cages. The method of the present invention may include a second heating furnace adjacent to the conveyor heating furnace to provide greater flexibility in slab sources, sequencing, and processing, as described in more detail below.

The present invention relates to a technological installation combining a casting device and 1 mini mill capable of producing at least 650,000, preferably more than 1 million 2) net rolled tons (at least 589,670, preferably more than 987,185 rolled tons) 50 purely metric tons) per hour with an expanded variety of the resulting product. Such equipment - or device can produce a product with a width from 24 to 120 inches (610 - 3048mm) and can

Ф to produce a product of the order of 8ВО0Р1МУ, at the same time, 1200 РИМУ is possible. This is carried out using pouring equipment, which has a mold with a fixed and adjustable width, with a clean, straight rectangular cross-section without molds with a central sprue. The installation for bottling has a casting mold or mold that has a sufficient volume of liquid to ensure sufficient time for the implementation of the shift! of an intermediate pouring ladle or box, as a result of which the work (F, installation is not limited only by the service life! of an intermediate pouring ladle or box. Our invention provides a slab with a thickness of two or three thicknesses of a thin slab casting, as a result of which it is much less heat loss and much less required input power in bo BTU (British Thermal Units). Our invention provides a slab with a smaller scale of losses due to reduced surface area per volume and allows the use of one or two heating or equalizing furnaces with minimal maintenance and In addition, our invention provides a casting plant that can operate at speeds generally accepted for casting plants and conventional scale removal technology. Our invention 65 provides for the selection of the optimal thickness of the slab casting used in conjunction with a two-cell reverser with a tandem hot rolling mill, which provides the possibility of balanced production. Our invention has the ability to separate casting and rolling if there is a delay or delay at any of the ends. Our invention provides for the storage of hot slabs if there is a delay or delay in the rolling mill. The invention provides for easy removal

Unestablished intermediate slabs formed when the chemistry of the metal melt or changes in widths change! in the bottling plant. In addition, the invention provides easy delivery of cold slabs to the technological line. You are weak! may be external sourced (ie not formed at the bottling plant) and may be thicker than the thinner ones that can be poured at the bottling plant. Such flexibility will allow the technological line to operate with the corresponding throughput capacity of individual components and also allows different sections of the line to operate independently.

Such availability of external sources makes it possible to include in the product mix a grade of steel beyond the capabilities of the steel foundry equipment that forms part of any given integrated process.

Implementations! all the above-mentioned advantages while preserving at the same time the advantages of the thin casting installation, which include low ferrostatic pressure, low weight of the slab, straightness of the exponent, shorter exponent lengths, smaller radius! molds, low cooling requirements, low consumption of reburn or cutting power and simplified design of mechanisms.

The invention provides an installation for casting a slab of intermediate thickness, combined with a line of hot rolling of strip or thick sheet steel, which includes at least one heating or leveling furnace capable of receiving the slab! directly from the casting installation, from the slab collection and storage area, located adjacent to the slab conveyor, departing from the continuous casting installation or the second section. One of the variants of the present invention includes a container of slabs capable of receiving slabs! from the casting plant. The feed roller conveyor is located at the exit end of one of the heating furnaces and is on the same line with the two-cell reversible hot rolling mill, which has a furnace with a winder located on one of its sides. In one of the variants of the present invention, the feeding and working roller conveyor is located in one row or on the same line with the furnace with the winder, so that the heating furnace can be selectively bypassed from the side. The bed can roll the slab to a thickness of about one inch (25.4 mm) or less in a minimum number of flat gauges, about three or four flat gauges. The combination of the finishing line of coils, coils of thick sheet metal, sheets in the form of a roll or discrete plates passes in one line and downstream from the reversible mill (from hot rolling and furnaces with a winder. The finishing equipment can include a cooling section, an underground multi-roller winder, a roller gang of thick of sheets, scissors, transition cooler, "7 edge-trimming and end-cutting scissors for cutting thick sheet metal and a stacker.

To achieve the necessary balance between the reversible hot rolling condition and the casting installation, it is preferable to cast slabs having a thickness of about 4 to about b inches (from about 76 to about 152 mm), more preferably from about 3.5 to about 5.5 inches (from about 88.9 to about 139.7 mm). "IS

The term used here - intermediate or medium thickness - is mainly intended to define such slabs, although for some special steels, such as, for example, stainless steel, slab! medium thickness! can reach up to about 8 inches (about 203mm). Slab castings are crimped or rolled to a rollable thickness, generally about one inch (about 25.4MM) or less, in four flat gauges of a reversible hot rolling mill prior to commencing intermediate cooling between furnaces with a winder, when it is additionally crimped to the required thickness! finished product. To ensure the possibility of obtaining coiled thick sheet metal, separate slabs of thick metal and sheets in rolls up to 1000 ORIMU and more, the width of the slab can vary from 24 to 120 inches (from 610 to 3048 mm).

One of the technological lines of the present invention includes the installation of continuous casting of strips of 5" intermediate thickness! with arrangements in one row downstream from the installation with scissors for cutting the casting thread in the weak intermediate thickness of the required length. The slab conveyor is located in one row or in one line with the shears, and a slab loading and unloading mechanism is attached to it for feeding the slabs onto the conveyor. The area of collection and storage of slabs is adjacent to the mechanism for loading and unloading slabs for receiving and feeding slabs to the mechanism. At least one heating furnace is provided, the entrance end of which is located in the same row as the slab conveyor for receiving slabs from it and

Ф feeding of heated slabs to the feeding and working roller conveyor located at the exit end of the heating furnace. The reversible state of hot rolling is combined in one line with the feeding and working roller for rolling the slab on the feeding and working roller into an intermediate product, the thickness of which is sufficient for crumpling into a roll of numerous flat gauges. Two spatially separated ovens with a winder of combinations! in one line with the feeding and working roller conveyor, one of which

Ф) is located upstream of the reversible hot rolling mill, and the other is located downstream of it. Bake with a rolling pin! receiving and matting the intermediate product as it passes between the furnaces with the winders and through the reversible state so that it can be white rolled into the final product. boron A finishing line is provided downstream and in line with furnaces with a coiler and a reversible hot rolling mill.

In the above-described unit, the reversible hot-rolling mill includes a pair of four-roller stands of the reversing mill, adapted to work in tandem with adjustable vertical springs located between a pair of rolling mill stands. In addition, the means for loading and unloading slabs 65 includes a first slab sled that adjoins the slab roller conveyor and operates across the slab conveyor, where the feed and working roller conveyor is located adjacent to the end of the first slab conveyor device. The second device of the slab sledder is adjacent to the feeding and working roller conveyor, and the slab collection and storage section is adapted to receive slabs and feed the slabs to the second device of the slab conveyor. In addition, this variant of the present invention may include

The second heating furnace, the inlet end of which is combined in line with the feeding and removing working roller conveyor, and the outlet end of the furnace is combined in line with the slab conveyor.

The processing of rolls of thick sheet metal, sheets in the form of rolls or individual plates of thick sheet metal according to the present invention provides for an installation for continuous casting of intermediate thickness and scissors for casting a thread of intermediate thickness 7/0 Thickness and cutting a thread into slabs aligned in one line with it! given length). In addition, there is a device for loading and unloading slabs, adjacent to the slab collection and storage area, for the movement of slabs between the positions of the intermediate thickness slab pouring plant and the slab collection and storage area.

As noted above, one of the variants of the present invention may include a carriage or trolley moving along /5 Vertically, adapted for engaging the lowest slab and stacking the slabs, and the slabs in the stack are in direct contact with each other. Insulation surrounding the sides and top of the stack may be provided. In one of the variants of the invention, the carriage or cart can be mounted on a wheel inside an isolated pit! or a well for placing slabs with a cover adapted to fence the pit! for placing slabs. In the second option, the trolley can include one or two pairs of engaging slabs! rychagov, adapted for engagement and support of the lowest slab in a stack of slabs. Catchy slab! The rods are preferably movable to match the changing width of the slabs and include an element. isolation of the sides and top, fastening to each lever for engaging the slabs. Upper zlement! insulation on the corresponding levers for engaging the slabs have such a configuration that they overlap each other, with the possibility of the levers for engaging the slabs when moved to correspond with the changing width of the slabs. and)

Figures 1 and 2 schematically show the installation for casting strips of intermediate thickness! and combining in one line with it a reversible state of hot rolling and a furnace with a winder according to the first variant of the present invention; Fig. 3 is a schematic representation of the location of the installation for casting a strip of intermediate thickness! and their integration in one line of a reversible hot rolling mill and a soybean winding furnace" with multiple heating and equalization furnaces according to the second version of the present invention; fig. 4 and 5 are a schematic representation of the third version of the arrangement of the installation for casting with 5 strips of intermediate thickness! and combined in one line of a reversible hot rolling mill and a furnace with a winder according to the present invention; Fig. b is a section or a cross-sectional view of one of the variants of the container for storing slabs, schematically depicted in Fig. 4 and 5; Fig. 7 is is a side view of the second variant of the container for storing slabs, schematically shown in Fig. 4 and 5; and from Fig. 8 is a front view of the container for storing slabs, shown in Fig. 7.

On fig. 1 images! installation for casting slabs of intermediate thickness! and the line united with it;" hot rolling of strip and thick sheet metal of the first variant of the present invention. This option corresponds well to the sequence of slabs described above. At the input end of the combination of the installation for pouring and the hot rolling line, strip and thick sheet metal are provided! one or more 5" electric melting furnaces 26 for obtaining molten metal. The molten metal is then fed into the pouring ladle 28 before being fed into the casting plant 30. The ZO plant feeds the metal into a (curved or straight) mold 32 with a rectangular cross-section. 2) A gas cutter (or scissors 34 for cutting a thread of already 5p solidifying metal into slabs of intermediate thickness from about 3.0 to b inches (from about 76 to about - 152 mm) and the required length, the width of which is about 24 to 120 inches (from 610 to 3048 mm).

Ф Then the slab is fed by the supply and removal roller conveyor 52 to the part of the removal or seven slabs, where the latter can be removed from the supply and removal roller conveyor 52 by the slab skimmer 35, acting across the supply and removal roller conveyor 52. The slabs are transferred by the slab skimmer 35 to the roller conveyor 36 for loading in the furnace 42 or removed from the combined processing line and placed in the slab collection and storage area 40, which casually hides equipment of one or another type for slab conditioning. (F, Providing an easily accessible slab collection and storage area makes it possible to disconnect the installation for casting and subsequent processing. For example, if the machine is idle during the casting process, the remaining castings can be directed to the slab collection and storage area. In addition, if If the casting plant is turned off or idled, downstream processing can be continued with slabs from an external source.Slab collection and storage or accumulation section 40 provides the ability to collect individual slabs for individual surface treatment of individual slab defects.

The preferred furnace is a furnace type furnace with a walking beam floor, although for some 65 applications a furnace with a walking floor can also be used. Slab! natural size 44 and a slab of discrete length 46 for some thick-sheet image products! inside the furnace with a walking beam floor 42. The slab 38, located in the area of collection and accumulation of slabs 40, can also be fed into the furnace 42 by means of a slab pusher 48 or a loading handle device, with rooms for indirect loading of slabs 38 into the furnace with a walking beam floor 42. It is also possible download slow! from other warehouses for slabs or storage areas. When slabs are introduced from the area of collection and accumulation of slabs 40 or from external sources, the furnace 42 must be able to increase the power in BTU to bring the slabs to rolling temperatures.

Because intermediate-thick slabs retain heat much longer than thin slabs, temperature equalization is all that is required for many modes of operation. In addition, for some slab castings, the internal temperature of the slab when it enters the feed and discharge work roller 52 may be sufficient for immediate rolling. In this situation, the slab can be fed directly to subsequent processing, bypassing the furnace 42. It is also expected that a second furnace can be located further upstream from the first furnace 42 to increase flexibility and control over the systems in circulation.

Different slabs! are fed through the furnace 42 in the usual way and are removed by means of vibrating slabs 50, and are placed on the feeding and working roller conveyor 52. For slabs of intermediate thickness! a chip breaker 53 and/or a vertical drill 54 may be used. A vertical drill generally cannot be used for slabs 2 inches (50.8 mm) or less thick.

Downstream behind the supply and discharge roller conveyor 52 and the vertical source 54 is located a (single cell) reversible hot rolling mill 56 with front and rear furnaces with a winder 58 and 60, respectively. The discharge roller conveyor and the cooling station 62 are located downstream of the furnace with the winder 60. Downstream of the cooling station 62, the winder 66 is located, operating together with the elevating and moving trolley 67, which is followed by the roller conveyor for thick sheets 64, operating in connection with the scissors 68. The finished product is either folded into a roll on a reel 6b and removed by means of a lift-and-move trolley 67 in the form of a sheet or strip or rolled thick metal, or it is cut into sheets of thick metal for further processing in the line. The thick-sheet product i) is conveyed by a slepper 70, which includes a refrigerator on the finishing technological line 71. The finishing technological line 71 includes edge-trimming shears for thick-sheet metal 72, end scissors for thick-sheet metal 74 and stacker of thick-sheets 76. Of course, the equipment for the thick-sheet product (o z is omitted when only a roll product or a roll and sheet product is required. The advantages of the subject invention are a consequence of the applicable operating parameters and the flexibility in order provided by the present design. 76 to 152mm, preferably 3.5 to 5.5" (88.9 to approx. 139.7mm). The width can normally vary from 24" to 100" (6 x 10mm - 2540mm) for Shcheo, from receiving the product to 1000OR'MU and more. "E

A slab of flat is passed back and forth through the reversible state of hot rolling 56, in the minimum number of passes the rolled flat is of sufficient thickness! slab about 1 inch (25.4 mm) and below. The intermediate product is then rolled into a roll! in a suitable furnace with a winder, which, in the case of three passes, the rolled flat should be downstream from the furnace with a winder 60. After that, the intermediate product is passed "

Through the reversible state of hot rolling 56 back and forth and between furnaces with a winder to achieve the desired thickness of a sheet in the form of a roll, a roll of a thick sheet or a thick sheet product. The number of passes to achieve thicknesses! of the finished product may change, but in general it may be completed in nine;" passes, which include the original passes of the plane. In the final pass, which casually proceeds from the front furnace with a winder 58, a strip of the required thickness! rolled on the reversible state of hot rolling

M is drawn through the cooling station 62, where it is suitably cooled for crimping on the reel 66 or for feeding to the roller conveyor for thick sheets 64. If the product is to be beaten in the form of a sheet roll or a thick sheet, it is crimped on the reel 6b and removed by lifting -mobile carriage 67. If it must go directly in the form of a thick sheet, it enters the roller conveyor 64, where it is cut with scissors 68 to the appropriate length. After that, the thick sheet enters the slapper 70, which acts as a refrigerator, so that it can be cut off cleanly on the final - technological line 71, which includes a scale breaker 73, edge-cutting scissors 72,

F scissors 74 and stacker 76.

The installation of continuous casting of slabs of intermediate thickness and the line of hot rolling of strips and thick sheets provide many advantages of the installation of continuous casting of thin strips! without ov Nedostatkov. The basic design of the equipment can, according to the forecast, ensure the rolling of 15 tons (136 metric tons) per time on the rolling mill. The requirements of the market should, obviously, dictate the mix

F) product, but for the purpose of calculating the necessary casting speeds of the installation to obtain 15 tons (136 metric tons per rolling time, it is possible to assume that the bulk of the mixed product will be from 36 inches to 7t72 inches (from 914 mm to 1829 mm). For rolling a 72-inch slab (1829mm) at 15Otons (136 bo Metric tons) per hour requires a casting speed of 61 inches (1549 mm) per minute. At a width of 60 inches (1524mm) the casting speed increases to 73.2 inches (1859mm) per minute; at a width of 48 inches ( 1219mm) the casting speed increases to 91.5 inches (2324mm) per minute; and with a width of Zbinch (914mm) the casting speed increases to 122 inches (3099mm) per minute. All these speeds are within the limits of acceptable casting speeds. 65 Annual tonnage of structures can be based on 50 weeks of operation per hour with an 8-hour work period and 15 periods or revolutions per week for 6,000 hours per hour of available working time, assuming that 7,596 of the available working time is used equipped with working time and assuming 9,690 working hours on existing equipment, under those conditions the annual tonnage of the structure will be approximately 650,000 net rolled tons (589,670 metric tons).

The installation for pouring slabs of intermediate thickness and the hot rolling line combined with it according to the modified version of the first variant of the present invention is shown in Fig.2. The combination of the strip and thick sheet casting line 25 is identical to the line 25 described in connection with Fig. 1, except that the single-cell reversible hot rolling mill is replaced by a two-cell reversible hot rolling mill 56. The provision of a double cage 7/0 increases the capacity of the mill. In addition, the two-cell stand 56 allows the processing of slabs from external sources, which are thinner than slabs of intermediate thickness, which can break products! casting plant 30. With a two-cell stand 56, in order to achieve a thickness at which it is possible to crumple into a roll, four pressing passes of the slab on the feeding and working roller conveyor 52 are generally required (with two passes occurring at each pass of the slab along the feeding and working roller conveyor 52) .

Installation for pouring slabs of intermediate thickness and hot rolling strip line combined with it! and thick sheets, including multiple ovens and/or multi-cell reversible hot rolling, according to the second variant of the present invention is shown in fig. 3. Technological line fig. Z is in many respects similar to the line of the variant shown in Fig.1. One or more electric furnaces provide metal melt at the input end of the combination of slab casting installation of the intermediate thickness and strip and thick sheet technological line. Molten metal is fed into the pouring ladle 128 before being fed into the intermediate thickness slab casting unit 130. The casting unit 130 requires a curved or straight mold 132 with a rectangular cross-section. Gas cutter or scissors! 134 locations at the exit end of the showrooms! 132 for cutting solidifying metal threads in weak intermediate thicknesses! required length, which can have a width from 24 to 120 inches (from 610 to 3048 mm). The slab of intermediate thickness is then fed to the roller conveyor for slabs 136. Above the roller conveyor for slabs 136, a fire-cleaning machine for slab 137 can be arranged for processing the surface i) of slabs. The slab can be removed from the combined technological line and stored in the area of collection and accumulation of slabs 140, or it can be loaded directly from the roller conveyor for slabs to the entrance of the leveling or heating furnace 142. The furnace with a walking beam floor is preferred, although in in some applications, a heating furnace with a roller floor can be used. The various slabs are fed through the furnace 142 and removed in the usual way and placed on the feed and work roller conveyor 152, located at the exit of the furnace 142. The feed and work roller conveyor 152 are located in line with the casting plant in a technological sense, but are not physically located on the same lines with a bottling plant, as in the first version. at

When the slabs are transferred to the collection and accumulation section of slabs 140, they can be removed from the roller conveyor for slabs by a slab slapper 138 operating across the technological line. The slab trailer 138 transfers the slab from the slab roller conveyor 136 to the feeding and working roller conveyor 152. The second slab trailer 144 is located adjacent to the feeding and working roller conveyor 152 to transfer the slabs from the feeding and working roller conveyor to the slab collection and accumulation area 140. Alternative arrangement scheme must unite the first and second tugboat! for slabs 138 and 144 in a single sledder, passing from the roller conveyor for slabs to the collection and accumulation section of slabs 140, while the feeding and working roller conveyor 152 passes and accepts slabs from the middle part of the unified sledder for slabs. ;" The furnace 146 is located between the roller conveyor for slabs 136 and the feeding and working roller conveyor 152 and borders the furnace 142. The furnace 146 can have an entrance to the feeding and working roller conveyor 152 and an exit end to the roller conveyor for slabs 136. The slab accumulation section additionally includes a slab conditioning department 148, where, if necessary, additional surface treatment of slabs is performed.

The described double arrangement of the furnace and the device for loading and unloading slabs provides greater flexibility in the sources and processing of slabs. As noted above, the casting of the slab from the installation for casting slabs of intermediate thickness 130 can be fed directly through the furnace 142 to the feeder

M working roller conveyor 152 and into the technological line. Because of the weak intermediate thickness! retain heat - much longer than thin, weak

Ф multiple modes of operation.

This arrangement, in addition, ensures the transfer of the slab from the position in the line on the conveyor for slabs 136 to the zone or area of collection and accumulation of slabs 140 through the tugboat 138 and 144. Such storage in the Mly warehouse may be required to ensure the possibility of continuing continuous casting when an accident occurs downstream in the technological line, or, alternatively, to ensure the removal (Ф) of a separate slab for further processing in the separate conditioning of slabs 148, caused by any undesirable surface defects. This arrangement provides greater flexibility in the delivery of slabs from the zone or area of collection and accumulation of slabs 140 back to the process line. 60 Without delays, the slab can be passed directly onto the feeding and working roller conveyor 152 by means of the slapper 144 for subsequent processing. The second alternative should be the transfer of the slab to the conveyor for slabs 136 through both schleppers 138 and 144. The slab can then go further through the furnace 142 and onto the feed and working roller conveyor 152 for processing. When cold slabs are re-introduced into the process line, this layout provides the possibility of transferring the slabs to the 65 conveyor for slabs 136 through the heating furnace 146, which should be able to increase the power in BTU to bring the slabs to the appropriate temperature for further processing. In addition, this layout scheme provides the possibility of introducing slabs from external sources into the technological line. Slabs from external sources include slabs that were not poured by the installation for pouring slabs of intermediate thickness! 130. Weak noises from external sources

They can have any thickness, including a thickness greater than the thickness of the casting of the installation for pouring slabs of intermediate thickness! 130 and/or have a chemical composition different from that which can be produced or obtained in the electric melting furnace 126 and pouring ladle 128. The additional ability to introduce slabs from external sources into the process line provides additional flexibility for better selection and adjustment of installation speed for pouring 7/0 slabs with an intermediate thickness of 130 and supplying slabs from external sources for further downstream processing.

An alternative version of the present invention is also considered, in which the input side of the furnace 146 is located at the slab conveyor 136, and the input side is at the feed and working roller conveyor 152.

With such a bad mood! from the zone for the collection and accumulation of slabs 140 ordinary duties! fed to /5 conveyor for slabs 136 and then through one of the suitable furnaces 142 or 146. In this alternative scheme of arrangement, both furnaces are required! work the same way. In the variant shown in Fig.3, the furnace 146 can be used and act as a heating furnace, while the furnace 142 can generally act as a leveling furnace.

This scheme of arrangement, in addition, provides a direct transfer of the corresponding slab from the conveyor for slabs 136 to the feeding and feeding roller conveyor 152 for subsequent processing without passing through any of the furnaces 142 or 146, as in the first variant. Such a procedure should be possible only if the casting of the slab already has a suitable temperature for rolling along its entire length. This alternative additionally illustrates the inherent flexibility of this design.

Slabs, located on the feeding and working roller conveyor 152, are passed through a scale breaker 153 of a known type for further processing. As noted above, the process can be harmful and fatal for thin slabs 2 inches (50.8 mm) thick. (8)

On the same line with the feeding and working roller conveyor 152, downstream of it, there is a reversible hot rolling mill, which includes a pair of four-roll cages of the mill 156, arranged so as to act in tandem. An adjustable vertical spring 154 is arranged between a pair of rolling mill cages 156. The vertical spring 154 is intended for use in a general way or for thinning the front or main and rear ends, respectively, of the slab in the first pass through the mill in order to (87) compensate for the expansion or flaring of the extreme ends, which occurs during subsequent rolling

Such a thinning can be controlled by means of ARU (automatic gain control) and the vertical source can be passively driven by the twin cages of the machine. The effectiveness of thinning o z5 of the ends can be adjusted by the width of the side ruler at the output end located downstream of the reversible hot rolling cage, in which the width imprint indicator is set), and the adjustment is carried out by means of a feedback loop with a vertical source when necessary.

The front and rear furnaces with a winder 158 and 160, respectively, are located on each side! steam! cages 156 of the reversible hot rolling mill. The diverting roller conveyor 161 passes further downstream from the furnace with the roller 160. The cooling station 162 for laminar flow cooling is located downstream from the rear furnace with the roller 160 and passes along the diverting roller conveyor 161. Downstream from the cooling station 162, an above-ground roller is located 166, which can work in combination with ;" lifting and moving trolley 167. A subsequent finishing line may be provided, essentially the same as the one shown earlier in Fig. 1, which includes scissors! 68, slapper 70, final technological line 71, edge trimmer of scissors for thick sheets 72, end of scissors for thick sheets 74 and stacker of thick sheets 76.

The provision of tandem double reversible stands 156 in the reversible hot rolling mill of the present invention increases the process tonnage, as well as the possibility of 2) obtaining small gauges, such as 0.040 inch (1.016 mm), the importance of which is increasing in many industries, e.g. , in construction, where the hot-rolled product of small calibers is formed - into racks, jambs, etc. for replacements! a log Additional price increase due to the introduction of a reversible state of co

Ф with a double cage instead of a single cage reversible mill is justified by the increase in productivity and flexibility and the possibility of introducing 140 slabs from external sources from the zone of collection and accumulation of slabs, as noted above. As already noted, such weak ones can come from external sources

MM has a thickness greater than the thickness of the castings in the 130 casting plant, and can provide an even greater variety of product mix. The following examples illustrate such a product mix. (F. Example 1) A thick sheet 48.99 inches (1244 mm) wide x 0.040 inches (1.01 mm) thick in the form of a roll was obtained from a 5 1/2-inch (139.7 mm) slab casting according to the following rolling process (see table in the text of the original). b5

EXAMPLE 1. Reversible tandem mill 24.495 tons (22.22 metric tons) 1000 RIM/ Technological process of rolling PSGP (hot rolling strip mill - 48.99 (1244 mm-5.5000 (139.7 mm)/0.040 (1.0 mm)

About- Oboz- | Caliber, | Caliber, | Obzha- | Obzha- Obzha- Angle Length, Total spent start|nachenie| inch cm tie, 95 tiv, tie, zeva ft vrema, sec

Me | cages inch mm rolls, 1st grade grade o ESE: 5.BOOO 139,700 0 000 0.00 .00 53.5 16.3 -00 1 te: 3.9350 89.949 28.5 1.565 39.75 17.99 74.8 22.8 8.09 2 tag: 2.4702 81 zv. 1505 38.23 17.64 121.2 36.9 14.86

From tag: 1.3700 34.758 43.6 1060 26.92 14.79 214.9 65.5 50.47 4 | TT: -6400 16.256 53.3 730 18.54 12.26 4604 140.2 BB. 1073 2.725 40.072 1.83 3.83 2744.a 836,5 264.82 8 T: -0697 1.770 35.0 038 0.97 2.78 DG24.8 1287.7 268.43 9

WHAT) TE2 -.0400 1.016 14.9 -007 o18 1.20 7361.8 2243.9 466.76

EXAMPLE 1 (reversible tandem position - extension 24.495 tons (22.22 metric tons) 1000 RIM/s

Technological process of PSGP rolling (hot rolling strip mill - 48.99 (1244 mm) - 5.5000 (139.7 mm) and 0.0400 (1.0 mm) o

Pro- | Identification | Caliber, Temper- | temperature | Temperature | Outlet temperature, С.

START | cages inch tour on ra on on exit, ise)

MO STANA ENTERDOD, "ENTERPRISE," is JO C (ze) O essay: 5.Booo 139.700 2250.00 1232.22 2250.00 1232.22 1

With TE2: 1.3700 34.798 2143.36 1172.98 212195 1161.08 4 tA; .6400 16.256 2107.87 1153.26 212708 1163.93 5 ТЕ: -3250 8.255 2068.29 1131.27 2014.94 1101.63 « 6 ТЕ2: .1788 4.542 ?000.37 1093.54 201471 1101.51 7 Тег: 1073 2.725 15828.23 1053.46 193441 1056.89 шщ с 8 ТЕ: .0697 1.770 1847.25 1008.47 1855.03 1012.79 ts 8 TE: 9470 1.194 1752.82 956.01 1752.20 955.67 and » 10 TECH: .0400 1.016 172505 940.58 1702.53 928.07

Sg" 1 (95) shu 70 4) ko 60 65

EXAMPLE 1 (reversible tandem mill) - continued 24.495 tons (22.22 metric tons) 1000 RIM/ (hot rolling mill) - 48.99 11244 mm -5.5000 (139.7 mm) / 0.0400 (1.0 mm )

Pr. |Train.| Caliber,! Caliber, | Rental.) Rental. | Moment; The moment!| Power- |Meshchnost, | Load | An average of 70 Mo iclets! inch mm effort,| effort, | rental- |(rolling! nost, Watt otnoshe-i| quad. stana poundh | Newton x Ky, Jh 0 le. nie vremya, 109 lb- sec ft 105 o 1ECE: | 5.5000 139.700 0.0000 0.0000 0.0000 | 0.0000 0. 0.00 .0000 00 1 | TTE1: | 39350 99.949 2.727560 12.2587 1.14537 | 1.5506 | 12842. | 9576.00 1.8441 34.35 2 | Te2: | 2.4300 61

With | tTE2: 1 13700 34.798 3.6420 16.1996 1.2393 | 16802 | 13158. 9812.00 | 2.1064 1 157.96 4 | TE: .6400 16.256 4.0939 18.2097 1.1498 | 1.5588 | 26134. | 19488.00 | 1.9544 | 129.33 5 | TE .3250 8255 4.0374 17.9584 -7352 | 0.868967 | 13789, ! 1028200 | 1.2496 120.82 b 1 tE2:| .1788 4.542 3.548987 15.78981 .4304 1 0.5835 | 14673. | 10942.00 | 1.0481 82.76 sch 7 1 TE2:| 4073 2.725 3.5588 15.8295 -2906 | 0.3940 | 9652. 7197.00 -6895 60.83 o a | TE1:1 .0697 1.770 Z.l157 16.5274 -2075 | 02815 | 10617. | 7917.00 -7583 72.49 9 1 TE1:1 0470 1194 4.9793 22 LATA 1901 02577 8272. 6168.00 .BYAO8 69.25 10 | tE2: | .0400 1.016 3.085853 13.6345 .0556 | 0.0754 | 2846. 2122.00 .2033 8.11 (Se)

Distance/length ratio: 0.БО0О "-

The maximum productivity of the reversible tandem loom: 1888.92 tons/hour

Confusion begins with the pass number: ATR" so

Tandem passes start with pass number: 1717 yu

The distance between the furnace with the Me1 winder and the loom: 35.0 feet (10.7 m)

From the distance between the loom and the furnace with the Me2 winder: 35.0 feet (10.7 m) «

The diameter of the furnace with the winder is 54.000 inches (1371,bmm)

Temperature of the furnace with a winder: 1,650.00"Р(898,897С)

Acceleration/braking ratio 250.0Fut.m/sec (76.2m per m/sec) «

The final temperature of the body in the tandem cage is 1702.53 "g (928.077C) - s. Example I illustrates a large variety of product types that can be rolled in this "» system. As shown in this example, the current mill can economically perform hot rolling up to 0.040 inch (1.01 mm) thick. The provision of double cages enables accurate rolling to those small gauges for which the demand in the market is increasing.

Example Ii pi A thick sheet with a width of 55 inches (1397 mm) and a thickness of 0.02 inch (1.52 mm) in the form of a roll was obtained from a casting of a slab 51/2 inches (139.7 mm) according to the following technological rolling process (see the table in the text) . (95) - 50 42)

F) has) because b5

EXAMPLE II (reversible stand-tandem) 27.5 tons (24.9 metric tons) 10O00RIMU

Technological process of PSGP rolling (hot rolling strip mill) - 55.00 1139.7 mm) - 5.5000 (139.7 mm); 0.0600 (1.52mm)

About-Obozn. Caliber, | Caliber, | 95 o0b- | Obzha- | Abbreviated.| Angle Length, Length, Total spent - launch | cages inch mm harvesting | tiie, mm zeva ft MM noe vremya, 710

Me | stana inch swath, sec, deg. 19) ESE: 5.5000 139.700 -0 .000 0.00 -00 53.5 16.3 .00 15 1 tA: 3.3480 100279 | 28.4 | 1,560 | 39.62 | 17.97 74.7 22.8 8.59 2 TE: 2.570900 65.278 34.8 1 1,370 | 34.80 16.83 114.6 34.8 14.22

From TE2: 1.656000 40.640 37.7 | .870 ) 24.64 | 14.14 184.0 B 42.79 4 TI: .8500 21.590 46.9 | .750 | 19.05 | 12.43 346.4 105.6 47.49 5 Te -4750 12.065 444 -375 9.53 8.78 619 0941 2.390 36.4 | 054 1.87 3.33 from 129.3 953.8 222.59 o you: .0705 1.793 25.0 023 0.58 2.20 4171.0 1271.3 371.84

Tag: 0600 1.524 15.0 | 11 028 147 498907.8 1495.8 371.84 ch

EXAMPLE H (reversible tandem position) - extended 27.5 tons (24.9 metric tons) 1000 RIM/ o

Technological process of rolling PSGP (strip hot rolling mill) - 55.00 (1397 mm) - 5.500 (139.7 mm) and 0.O600 (1.52 mm)

Pro- | Obozn, | Caliber, | Caliber, | Temperature | Temperature Temperature Temperature x, starting cage inch MM at the entrance, | at the entrance, at the exit at the exit -

Me 0 of the "E" C "e" O 0 of the essay: B.Booo 139.700 2232.222222222222.232.22 O 1 T;

Z Tag: 1.6000 40.640 2154.98 1179.43 2138.02 1170.01 4 cars; .8500 21.590 212741 1163.85 2140.93 1171.63 « 5 TE: -4750 12.065 2096.08 1146.71 2104.49 1151.38 b TE; 2470 6.274 2092.28 1144.60 2107.45 1153,03 c) C 7 Tex2: .1480 3.759 202439 1106.88 202703 TE2: 0600 1.524 1818.74 992.63 1795.94 979.97 g" 1 (95) poison 250 4) ime) 60 65

EXAMPLE I (reversible mill - tandem) - continuation of 27.5 tons (24.9 metric tons) 1000 RIM/ technological process of rolling PSGP - (strip hot rolling mill) - 55.00 (1397mm)-5.500 (139.7mm) / 0.600 (1.52 mm)

Pro- | Identification Caliber, Caliber | Rolling. | Rolling. And Moment | Moment | Power, Load Medium-start | cages duoim mm effort, | will strengthen, | rolling | rolling kwatt ratio!| square. 70 Mo stana poundh |Newtonh!| pound- | J x 107 time, 105 106 |ftgh1o sec 9 ЕСЕ: 5.5О0О 00000 | 00000 00000 | 0.060000 0. 0. -0000 00 1 TE: 3.8480 3.0812 | 13.7052 1.2766 1.7307 15141. 11291. 2.1699 40.46 15 2 TE: 2.5700 3.353368 | 148421 1.2942 17546 23531. 17547. 2.1997 41.58

From TE2: 1.680600 3.5295 | 15.6992 1.1492 1.556580 13876. 10347. 1.9534 109.02 4 te: -8500 4.0143 | 17.8556 1.1449 1.5522 26023. 19405. 1.9461 102.40 5 THREE: 4750 36429 | 16.2036 .7284 0.9875 12912. 9628. 1.2380 90.89 b tag: -г4ТО 3.0257 | 13.4583 .BV76 o.7966 20038. 14942. 1.483813 117.09 20 7 TE2: -1480 34411 | 15.3060 .3386 both 9785. 7297. -65990 52.74 8 tA: 0941 3.5483 | 15.7828 -P473 03353 | 11241. 8382. .8029 68.31 8 TE: .0706 3.0025 | 13.3551 -1305 0.1769 5041. 3759. -3601 19.35

TE: 0600 2.1214 | 9.4360 0579 0.078985 2834. 1964. .1882 5.21 h 25 The maximum productivity of the reversible tandem loom: 266.20t/hour Ge)

Confusion begins with pass number: ATR"

Tandem passes start with pass number: PRG

Distance between the Mo1 winder furnace and the stand: 35.00 ft (10.7m) s

Distance between loom and furnace with Mo2 reel: 35.00 ft (10.7m) 30 Diameter of furnace with reel: 54.00 in. (1371.6 mm) h-

Temperature of the furnace with a winder: 1650,000E (898,890C), so

Acceleration/deceleration ratio 250.00 ft. m/sec (76.2 m. m/sec)

The final temperature of the tandem cage: 1795.94"Р(979,977С) ив) 35 У У Я

Example II, like Example I, illustrates the flexibility of this system! during hot rolling of thin (small) gauges. Hot-rolled products of small (reduced) caliber, such as about 0.040 inch (1.00 mm) and about 0.060 inch (1.5 mm) can be used! as a final assortment in situations where the final assortment is generally not unprotected (or exposed) and does not require any surface finishing. Metal structures of racks, for example, with a thickness of 0.040 inches (1.Ohm), with galvanized racks represent the final assortment, which can be hot-rolled by means of the present invention. This is a clear advantage over the state of the art, where "z" is a hot-rolled product with a lateral thickness somewhere over 0.080 inches (2.0 mm), then etched, and then separated cleanly on a cold rolling stand with subsequent annealing and dressing.

Example II A thick sheet 2 inches wide (1574 mm) and 0.090 inches (2.3 mm) thick in the form of a roll was obtained from a 10-inch slab casting (254 mm) from an external source according to the following rolling process 1 (see table in the text). (95) - 50 42) ime) 60 b5

EXAMPLE IN (reversible tandem-stand) 31 tons (28 metric tons) 1000 RI

Technological process of rolling PSGP (strip hot rolling mill) - 62.00 (1574.8 mm)-10.00 (254 mm / 0.0900 (2.3 mm)

Pro- | Identification Caliber, Caliber, Sv | Obzha-Ugop Length, Total spent - launch | cages inch MM ob- tiie, pharynx ft noe vremya. Sec

I became a harvester. | inch rolls 710 degrees. o ESE: 10.0000 254.000 -0 000 0.00 0.00 29.5 9.0 00 1 TE: 8.5500 217.170 | 14.5 | 1.450 36.83 17.32 34.4 10.5 3.11 2 tag: 71000 180.340 | 17.0 | 1.450 36.83 17.32 41.5 12.6 v.18 75 With TE2: 5.868500 143.510 | 20.4 | 1.450 36.83 17.32 B2g.1 15.8 12.38 4 tA: 4.2000 106.680 | 25.7 | 1.450 36.83 17.32 70.1 21.4 17.69 5 tA: 2.9300 74422 30.21 1.270 32.26 16.20 | 100.5 30.6 26.69 6 TE2: 1.8700 47.498 36.21 1.060 25.92 14.79 ! 157.5 48.0 32.37 7 TE2: 11200 28.448 404 -750 19.05 12.43 | 262.9 80.1 62.21 20 8 tA: -6600 16.764 41.1 -460 11.68 8.73 dBv.2 136.0 66.30 9 TE .3878 9.850 412.| 272 6.91 7.48 759.4 231.5 119.01

TE2: 2521 6.403 З5Б.0О0| 136 3.45 5.28 | 11682 z5bv4 122.80 11 TE2: -1765 4.483 30.0 -076 1.83 3.94 1668.6 356.2 192.43 12 t; 41324 3.383 25.0 | .044 112 3.01 2224.3 678.0 195.91 s 25 13 te: 4059 2.890 | 20.0| .027 0.69 2.38 12780.9| 847.6 278.46 at 14 Tag; -0900 2.286 15.0| 016 0.41 1.81 3272.2 997.4 276.46

EXAMPLE I (reversible tandem mill) - continued 31 tons (28 metric tons) 1000 RI Ge 30 Technological rolling process PSGP - (strip hot rolling mill) - 62.00 (1574.8 mm)-10.00 (254 mm) / 0.0900 (2.3 mm) "-

Pro- | Identification Caliber, Caliber, Temperature. Temperature | Temperature Temperature at the outlet, start | cages inch mm at the entrance, at the entrance, at the exit, another 35 Mo | Stan OP OG "4) Essay: 19.0000 254.000 2250.00 1232.22 225.00 1232.22 1 and: 8.5b0O0 217.70 222738 1219.66 2255 4 tt: 4.2000 106.680 2215.05 121271 2218.71 1214.84 h» 5 th; 2.9300 74422 219447 1201.37 2198.55 1203.64 п 6 Тег: 1.8700 47498 2195.76 1202.09 2193.42 1200.79 7 тТЕ2: 11200 28.448 2125.80 1163.22 2135.32 116851. їз 8 тек -6600 168.764 212151 1160.84 2113.87 1156.59 9 ти: .3878 9.850 2976.96 1136.09 2087.73 1142.07 о 10 ТЕ2: 2521 6.403 2077.75 1136.53 208445 114025 CV TE: -1785 4.483 2030.67 1110

F 14 TE2: -0900 2.286 1893.44 1034.13 1880.60 1027.00 name) 60 65

EXAMPLE PP (reversible tandem position) - extension 31 tons (28 metric tons) 1О0ОРИУУ

Technological rolling process PSGP (strip hot rolling mill) 62.00 (1574 mm) - 10.00 (254 mm) / 0.089800 (2.3 mm)

Pro- | Identification Caliber, Caliber, Rolled. Rolling. Moment Rolling moment, start | cages inch mm force, force, rolling. J x 10?

Me | hundred pounds x 105| Newton X - Funophut then 102 x 106 0 essay: 10.0000 254.000 0.0000 0000 0000 0.0000 : 4.2000 106.680 32788 14.5841 1.838095 1.7754 5 ТЕ: 2.9300 74422 3.5122 156223 1.3115 1.7781 б ТЕ2: 1.8700 47.498 3.813534 16.9620 12987 1.7607 7 ТЕг: 11200 28.448 4.1445 18.4347 11883 1.6043 20 8 тА: -6600 16.764 4.0563 18.0424 .8і16 12223 9 тА; .3878 8.850 3.98993 17.7889 -5770 9.989178

TT: .2521 6.403 3.265680 14.5961 -3843 0.5210 11 Te2: -1765 4.A483 2.9640 13.1839 -2547 03453 re 12 T 12 Tag; .0900 2.286 1.5862 8.8346 .0718 0.098973

EXAMPLE PP (reversible tandem position) - extension 31 tons (28 metric tons) 1О00РИМУ и-о

Technological rolling process PSGP (strip hot rolling mill) 62.00 (1574 mm) - 10.00 (254 mm) / 0.089800 (2.3 mm) t

Pro- | Identification Caliber, Caliber, Rolled. Rolling. Moment Moment of rolling, o start | cages inch mm force, force, rolling. J x 10? at

Zo Me | hundred pounds x 109| Newton x Funofut «102 x 106 0 essay: 10.0000 254.000 0.0000 0000 0000 0.0000 h 4 and: 4.2000 106.680 32788 14.5841 1.838095 1.7754 Ni 5 T: 2.9300 74422 3.5122 156223 1.3115 1.7781 B TE2: 1.8700 47.498 3.813534 TE: 141200 28.448 41445 184347 11833 1.6043 t 8 tA: -6600 16.764 4.0563 18.0424 .8i16 12223 4! 9 tA; .3878 8.850 3.98993 17.7889 -5770 9.989178 10 TE: .2521 6.403 3.265680 14.5961 -3843 0.5210

Mami 11 TE2: -1765 4.A483 2.9640 13.1839 -2547 03453 -- 50 12 TE: .1324 3.363 2.6926 11.9767 -1722 0.2385

Ф 13 tА: .1059 2.690 2.4442 10.8718 4177 0.1596 14 Tag; .0900 2.286 1.5862 8.8346 .0718 0.098973

The maximum productivity of the reversible tandem mill is 403.72 tons/hour

Crushing starts at pass number 817 (Ф) Tandem passes start at pass number 1тв17 ка Distance between the furnace with the reel Mo1 and the stand 35.00 feet (10.7m)

Distance between loom and furnace with winder Mo 2 35.00 ft (10.7m) in Diameter of furnace with winder 54 inches (1371mm)

Temperature of the furnace with a winder 1,650.00 "g (898.897С)

Acceleration/deceleration ratio 250.00 ft.m/sec (76.2m.m/sec)

The final temperature of the body in the tandem cage is 1880.607"g (10277С) 65 Example Ш illustrates the flexibility of the present system!, which can accept slobs from an external source for subsequent processing. Such slobs from an external source can beat, as here, slobs,

too thick for casting on a casting installation for slabs of intermediate thickness, or slabs having a special composition that limits their production, or simply additional slabs to replenish the product of the casting installation. The rolling of slabs from an external source and the possibility of accumulating slab castings allows casting and rolling to be separated and to work independently of each other.

An example of MI

A thick sheet of 48-inch (1219mm) wide and 0.125-inch (3.17bmm) thick high-carbon steel in coil form was obtained from a 51/2-inch (139.7mm) thick slab casting according to the following rolling process (see table in text). 70 EXAMPLE IM (reversible tandem position) 24 tons (21.774 metric tons) 1O0ORIMU

Technological process of rolling PSOGP - 48.00 (1219.2 mm) - 5.5000 (139.7 mm) / 0.1250 (3.175 mm) 15

Prop | Designate Caliber, Caliber, what compression |Compression| Angle Length Total cage tension inch mm compression inch mm throat foot spent

Mo Valkov Time, sec 20 Trades Ossa: 5. Boo0 139.700 -0 .000 00 -00 53.5 16.3 00 1 t: 39350 99,949 28.5 1.565 39.75 17.59 74.8 22.8 22 .6 14.58 C 25 : -3500 8.890 37.5 210 5.33 6.57 841.3 256.4 81.40 7 TE2: .gABO 6.223 30.0 105 2.57 4.84 1201.9 366.3 153.78 so 30 8 tA: 4830 2 5,648 | 457 | 3857 | 16094 490.5 157.51 «- 9 TE: .-1470 3.734 19.7 -036 0.91 2.72 2003.2 610.6 230.60 so

TE2: 4250 34175 15.0 -022 0.56 242 2355.8 718.0 230.60

EXAMPLE IM (reversible tandem state) - continuation of "

Prop. | Identification Caliber, Inlet temperature, C Outlet temperature, C and o ESE: 5.БООО 139.700 | 2250.0 | 2250.0 Ko, 12322 12322 0 -o s 1 tA: 3.9350 989.949 2225.0 | 22144 10.7 1218.3 1212.4 5.8 "» 2 TE2: 2.5200 64.008 2208.4 | 22061 2.3 1209.1 1207.8 1.3 " With TE2: 1.6500 di.e10 2131.5 | 22081 76.6 1166.4 1208.9 42.6 4 TE: -9850 25.0189 2120.1 2161.8 41.7 11601 11832 2гз1 t» 5 ty: 5600 14.224 2119.4 | 2025.2 94.2 1159.7 1107.3 52.3 1 6 TE2: -3500 8.890 2093.5 | 2036.7 58.9 1145.3 1113.7 31.6 2) 7 Tag: .2450 6.223 1879.0 | 2014.6 135.6 10261 11014 75.3 - 50 8 tA: .1830 4.648 1882.3 | 19542 71.9 1027.9 10679 39.9

F 9 that; 470 3.734 1835.9 | 1776.8 59.1 10022 969.3 32.8 10 TE2: 1250 3.175 1762.7 | 1767.6 4.9 961.5 964.2 2.7

F) IME) 60 b5 Before the tail of Miscompatibility Brazhnost 0 Essay: 5.BoO 139.700 2250.0.0.0.0.2.2 1232.2 1232.2 0.0 1 TH: 3.9350 99.949 2225.0 22144 10.7 1212.0209.7 2.3 2208 2206.1 2.3 1213.6 12131 ba 10 With TE2: 1.6500 41.810 2131.5 22084 765.6 116268 1189.9 2741 4 te; .9850 2552019 21204 2161.8 41.7 1168.7 1188.3 198.7

TT:. -BBO0 14224 2119.4 20252 942 11620 11186 43.A. Te2: -3500 8.890 20935 1 2036.7 56.7.9 1145.9 25.0 and TE: .1470 3.734 1835.9 1776.8 59.1 988.7 971.2 17.4 10 TEE: -1250 3.175 1762.7 17657.6 4.9 947.1 962.8 15.6

EXAMPLE IM (reversible tandem position) - continued from cage start inch MM lb x 10? Newton x 102 t | ожтрютя- "brertya vv ser otv a i sr ch v | te: "3500 3.4693 16.0146 g» 1 (95) shu 20 42)

F) name) bo 65

About - Obozn. Caliber, Caliber, |Rental. Usypie, Prokat. Starting the inch mm mm pound x 102 is a religion 2 | Mestan Newton x 102 (9) Essay: 5.BoO 139.700 0.006000 0000 0.0000 0.000600 10 1 Tho: 3.9350 99.949 1.4016 1.4076 1.98002 2.0179

From TE2: 1.6500 41.910 1.1318 1.0683 1.5344 1.4483 15 4 TE; .9850 25.019 1.0476 1.0048 1.4200 1.3623 and: .BBO0 14.224 .8474 -9387 1.1489 1.272656 6 Tho: .3500 8.890. 2129 0.3094 0.2886 and TE: .1470 3.734 .1515 .-1595 0.205A 02162

TE2: .А250 3.175 .А1027 .0980 01392 0.132595 сч

EXAMPLE IM (reversible tandem state) - continuation of Go)

Starting! cages inch before tail before tail ise)

Me stana - 4) ESE; 5.5000 139.700 o. at. 0.006000 9.0000 o 1 TE: 3.9350 z9.949 16321. 16390, 12171. 12222. IF) ? TEe: 2.B2O0 64.008 27040. 27062. 20164. 20180. "

From TEa: 1.6500 41.910 18428. 17393. 13742. 12970.

And t; .9850 25.019 28572. 27405. 223 12209. 10433. 9104. 7780. h» In TE: .1830 4.648 10373. 9679. 7735. 7218. " 9 TE: 1470 3.734 5855. 6164. 4366. 4596. 10 TE: -192.196.АА8634.АА854 3250 3321.

Sg» 1 (95) shu 20 42) (F) ko) 60 65

EXAMPLE IM (reversible tandem state) continued

Pro- |Designate Caliber, Caliber, Srednequadr time, launch inch MM before tail sec.

Machines of the state 0 o ESE: 5.BO00 139.700 -0000 .0000 -00 1 te: z.9350 99.949 2.3824 2.3925 49.95 2 Tag: 2.5Б2О0 64.008 2.527858 2.Б289 56.05

C: 1.6500 41.910 1.8238 1.8158 85.81 75 4 T: .9850 25.019 2.0408 1.9575 90.35 5 A.648 -7409 -6914 30.95 9 items; 1470 3.734 .4182 -4403 13.47

TE2: 4250 3175 .3335 .3181 7.50 s

The maximum productivity of the reversible tandem mill is 374.68 t/hour

Confusion begins at pass number dr" (o)

Tandem passes start at pass number 1TRI"

The distance between the furnace with the Mo1 winder and the stand is 35.00 feet 10.7m)

Distance between the loom and the Mo2 winding furnace 35.00 feet (10.7m) Ge)

Diameter of the furnace with a winder 54.00 inches 1371, bm)

The temperature of the furnace with a winder is 1650 "Р(898,897С) --

Acceleration/deceleration ratio 250.00ft.m/sec (76.2m.m/sec) with

The final front temperature of the tandem cage is 1736.8 6 R (94770)

The final tail temperature of the tandem cage is 1765.03"g (962.797C) o -

Example M

A thick sheet bb inches wide and 0.100 inches thick (1524 mm x 2.54 mm) in the form of a roll was obtained from a 5-inch slab casting (127 mm) of low-carbon steel according to the following technological rolling process (see table in the text). "ts ;z"

Cheka" 1 (65) - 50 4)

F) ko 60 b5

EXAMPLE M (reversible tandem mill) 30,000 tons (27,216 metric tons) 1000 RM tTechnological rolling process PSGP - 60.00 (1524 mm) - 5.0000 (127 mm) / 0.1000 (2.54 mm)

Pro- | Identification Caliber, Caliber, 9 Compression | Narrows, | Angle of jaws Length, | Length, | General launch | cages inch MM compressed. | inch MM rolls, foot MM | expense

It became hail. time, - - sec. c) essay: B.O0OO0 127.000 -0 .000 0.00 -00 58.9 18.0 .00 1 and: 37000 93.980 26.0 1.300 33.02 17.37 79.6 24.3

Tag: 1.375060 34.925 42.7 1.025 26.04 15.41 2144 655.3 40.09 4 and: -8250 20.955 40.0 -BBO 13.97 11.28 356 36.2 -166 4.22 6.19 1008.4 307.4 92.02 7 Tag: 2085 5.296 28.6 083 2.41 4.39 14122 430.4.4.4.4.38 8 TI: -1500 3.810 28.1 058 1.47)

C) i 00o 40 o 0185 0.46 o ZA 95 0.99

Identification Caliber, Caliber, Bhodn. entrance VBmkhodn. exit Hellets inch mm Temap., tempo, topic, tempo, (c) essay: 5.0000 127.000 2300.00 1260.00 260.00 1260.00 1

З ТЕг: 1.3750 34.9825 2150.30 1176.83 2149.90 11768.61 с 4 ти: -8250 20.955 2146.10 1174.50 2156,40 1180.22 о 5 ти: .4580 11.633 2133.40 116744 2040.00 1115.56 6 ТЕ2: -2920 7.А17 2014.20 1101.22 2908.40 1088.00 7 Тег: .го85 5.296 1857.00 1013.89 1844.40 1006.89 8 te: 1500 3.810 1856.80 113.78 1845.10 1007.28 9 ty: 411768 2.987 1790.80 977.11 1757.80 50 (80) 40 V, t. o o o 51400

Pass |Obzn. Caliber, Caliber, Rolled. Rolling. Moment Moment --

MU ICE MM SUCLATIVE, RAND, RANDING RAND, MM) POPE 107. NHLIO LIO -FUT JC 105 Yu x 102 «EEE: 5.0000 127.000 -0000 0.060000 -0000 0000 0.0000 1 T: 3.7000 93.87 T ”: 2.4000 60.960 C1851 141673 1.1359 1.5400 - C T that2: 1.3750 34.925 3.8551 17.1475 1.219 1.6430: C" 4 Te: .8250 20.955 3.2415 144182. : -2920 7.A17 3.1308 13.8258 .3886 0.52658 ve 7 TE2: 2085 5.296 2.8526 13.1332 .2559 o.3469 1 8 te; .1500 3.810 2.8790 12.8058 2052 02782 s 9 TEK 1176 2.387 25673 11.8642 .1368 01855 50 . - 10 Tag: 4000 2.BAO 2.2102 9.8310 0801 0ол1о86 4)

F) ko bo b5

EXAMPLE U (reversible tandem position) 30.000 tons (27.216 metric tons) 1000 RM

Technopogic rolling process PSGA - 60.00 (1524 mm) - 5.000 (127 mm) / .1000 (2.54 mm)

Skip | Identification | Caliber, Power | Power Load Srednekavdr. time, 70 Me chenie inch l.v. kW relative, sec. cages o) ESE: B.0000 127.000 0. 0.00 .0000 -00 15 1 t: 3.7000 93.980 12731. 9494. 1.4293 16.91 2 TE2: 2.4000 60.960 231980. 17293.32.88256

C: 1.3750 34.925 279833. 2075541 1.8817 7641 4 T: -8250 20.855 28591. 213201 12744 35.96 20 5 TE: -РО85 B.296 11744, 8757. .Б243 14.59 8 te: 1500 3.810 13091. 9762. .5814 19.46 in 9 te: -1176 2.987 7420. 5533. -3313 7.43 cm

TV2: | forehead 2.40 5110. zv11. g2v zl2 o

The maximum productivity of the reversible tandem mill is 467.52 tons/hour

Confusion begins with the pass number of the ATP" (Se)

The distance between the furnace with the Me1 winder and the stand is 00 feet (8.2 mm) "-

The distance between the loom and the furnace with the winding Mo2 27.00 feet (8.2m)

The diameter of the furnace with the winder is 54.00 inches (1371. bmm) so

The temperature of the furnace with a winder is 1750.00"R (954.44 7) y

Acceleration/deceleration ratio 250.00 ft.m/sec (76.2m.m/sec)

З The final temperature of the tandem cage is 1677.17- "Р (91870) "

Example IM and M show the range of grades produced by the present invention, providing the basic product mix required for a competing rolling mill. "

The installation for pouring a slab of intermediate thickness and combined or integrated with it "strip and thick-sheet hot rolling line of the third version of the present invention is shown in Fig. 4 and 5. The third version is similar to the first two versions, including an electric melting furnace 226, located on at the inlet end of the strip and thick-sheet line 225, the pouring ladle 228, the "casting" installation 230, the molder 232 and the cutter 234, located at the outlet end of the molders 232 for cutting the thread of already solidifying metal into slabs with a thickness of 3.5 to 6 inches (88.9 - 152.4 mm) (intermediate thickness) of the required length and width from 24 to 120 inches (609.6 - 3048 mm). Then the slab is fed on the slab conveyor 236 to the slab selection area 248, where it is loaded directly into the slab furnace 242 either stored in the slab storage container 280 or alternatively removed from the integrated processing line and stored in the slab collection area 240. If it is necessary to store the casting (95) as a slab before rolling, for example, during maintenance of a rolling mill, it is preferable that -l 20 slabs are stored in a slab storage container 280. The slab area 240 is normally used when additional processing of the slab is required, for example, surface treatment of the slab by manual fire 42) stripping . Slyabye 244 natural size and slyabye! 246 discrete length! for some thick sheet products, indications are inside the furnace with a walking beam floor 242. Slabs 238, located in the zone of collection of slabs 240, can also be fed into the furnace 242 by means of blowers of slabs 248 or arm loading devices, located for indirect loading of slabs 238 into the furnace with a walking beam o floor 242. It is also possible to load the slab into the furnace 242 from the slab storage container 280, which is fed to the slab conveyor 236. As mentioned above, when the slab! are introduced from external (i.e. off-line) areas, the furnace must be able to increase the thermal power in BTU to bring the slabs up to temperature! rolling The container for storing slabs 280 minimizes the need to load such slabs from outside areas to a minimum.

Through the next furnace 242, various slugs are fed. The third option works identically to the two options described above. The third option includes vibrating slab breakers 250, feeding and working roller conveyor 252, a cap breaker 253, vertical wells 254 and a reversible hot-rolling station located downstream of the feeding and working roller conveyor 252, front and rear furnaces with rollers 258 and 260, station 256, 65 the cooling station 262, the winder 266 downstream of the cooling station 262, the lifting and moving trolley 267, the roller conveyor for thick sheets 264, the shears 268, the slapper 270, and the final technological line

271, including edge trimming scissors for thick sheets 272, scale breaker 273, end scissors for thick sheets 274 and stacker of thick sheets 276.

Figure 5 shows a modified version of the version of the casting plant and the rolling mill integrated with it, shown in Figure 4. Fig. 5 is identical to Fig. 4 except that there are multiple slab storage containers 280 and 280" adjacent to the slab conveyor 236. The second slab storage container 280 clearly provides additional storage capacity for slab castings in the event of a delay below However, the addition of a second container for storing slabs 280 ! also provides possibilities in the order of sequence of slabs. This gives the opportunity to provide a certain 70 priority and change the order of sequence of slabs by directing them to the corresponding container for storing slabs 280 and 280", from where the slabs can be selectively is selected

Fig. 6b shows the first version of the container for storing slabs 280. The container for storing slabs 280 includes a cart resting with rollers 284 on a track or track 286, placed inside a storage well for slabs 288. The walls 290 of a storage well for slabs 288 are insulated accordingly, as well as the upper surface 292 of the trolley 282, which grips and supports the lowest slab of the footing or stack of slabs. The insulated movable cover 294 is provided for covering the storage well for the slabs 288 and the stack of slabs, as shown by the dashed line in fig.b6. Take care! slab pushers in and out of the stack into a container for storing 280 slabs.

Slab storage container 280 works as follows. The lowest slab of the stack of slabs is pushed onto the upper surface 292 of the trolley 282 by the slab pusher 296. The trolley 282 is then lowered down a distance substantially equal to the thickness of the slab, as a result of which the second slab can be pushed out by the slab pusher 296 directly on top of the first slab. When a foot or stack of slabs is placed in the slab storage container 280, a lid 294 may be placed over the top of the slab storage well 288 to preserve heat in the slabs. with

The configuration of the slab storage container 280 provides a simple and effective means of d) storing a stack of slabs, which also minimizes the required space. In addition, stacking slabs on top of each other and keeping the stacked slabs in contact with each other creates thermal advantages for thicker slabs. Temperature or heat losses of individual slabs are minimized with such a stacked arrangement. X,

Fig. 7 is a side view of the second variant of the slab storage container 280 " according to the present invention. The slab storage container 280! includes a trolley resting on a frame 298. The trolley 282! includes a front and rear pair of gripping slab arms 300. As shown in FIG. Fig. 8, the engaging points C or the pointed ends 302 of each engaging strap or rod Z00 engage the side edges of the lower slab itself in the stack of slabs to engage and maintain the stack of slabs. In addition, for the movement in and out of the engagement with the slabs, the bars for the engagement of the slabs 300 are preferably equipped with movements for adapting to different widths of the slabs.

The side insulating plates 304 and the upper insulating plate 306 are attached to each bar for the interlocking of the slabs 300. As shown in Fig. 8, the upper insulating plates! 306 opposing rods for interlocking slabs 300 duties! cross each other to ensure the possibility of movement of the rods for the interlocking of slabs 300 and to ensure compliance with different widths of slabs. :z» Slab storage container 280 ! acts similarly to the slab storage container 280 described above and provides similar benefits. During operation, the cart is lowered to a position above the slab and the slab engagement rods 300 are actuated to clamp the slab between them, and then the cart is raised again, holding the slab on it. To add a second slab to a stack of slabs, trolley 282! descends, placing itself above the second slab, which must be placed in a stack. The bars for connecting the slab are detached from the first slab, the trolley moves down to install the connecting points 2) 302 on the same level with the new lowest slab in the stack of slabs, and the bars for connecting the slabs 300 ВХхОодят are engaged with the new lowest slab in the stack of slabs. This process is repeated until all the loose ends are gone! in a stack, and the process occurs in the reverse order when slabs are removed from

F stack.

As noted above, the 280" Slab Storage Container provides the benefits of minimal space and efficiency, effective thermal preservation of slabs when using the Slab Storage Container as described above. Additionally, the 280 7 Slab Storage Container provides a system that can be installed directly through the top of the conveyor for slabs, in addition to reducing the floor or platform space required for all systems! in the formula, should not be limited to the description of the preferred versions contained in this description.

Claims (10)

The formula of the invention b5 1. A method of obtaining slabs of intermediate thickness, including continuous casting of a thread of intermediate thickness, cutting the thread into a set of slabs of a given length, passing the slab to be processed, passing it back and forth through the reversible state of hot rolling to form an intermediate product with a thickness sufficient for rolling into a roll , crumpling the intermediate product into a roll in one of the furnaces with a winder and passing the intermediate product rolled into a roll back and forth through the reversible state of hot rolling to compress or roll the rolled product into the final product of the required thickness, while the intermediate product is collected - and served from each of furnaces with a coiler for each pass through a reversible hot-rolling state, distinguished by the fact that they carry out selective feeding of each slab either to a continuous technological line, including a reversible hot-rolling state, having a furnace with a coiler on its front and rear sides, or to one installed in line a heating furnace, from which the slab enters a continuous technological line, or into a slab storage area and then transferring the slab to a heating furnace installed in the line. 2. The method according to claim 1, characterized by the fact that at least one slab to be processed is additionally supplied to the heating furnace installed in the line and a continuous technological line from the slab storage zones /5, while using a slab that is cast in the installation for casting slabs of intermediate thickness or in the second installation. 3. The method according to claim 1, characterized by the fact that a slab storage area is used, which includes at least one container vertically stacking slabs. 4. The method according to claim 1, characterized by the fact that a slab storage zone is used, which includes a slab collection and slab storage zone, while the second heating furnace is placed adjacent to the heating furnace installed in the line. 5. Installation for casting slabs of intermediate thickness, combined with the line of hot rolling of strips and thick sheets, containing a means for continuous casting of strips for the formation of thread of intermediate thickness, installed in the cutter line, located downstream of the means for pouring and cutting the thread in a slab of the required length, at least one heating furnace, located downstream from the means of storage and alternation of slabs, feeding and working roller conveyor, and) located at the exit end, at least one heating furnace, a reversible hot rolling mill and a pair of furnaces with a winder, one of which is located ahead of the flow of the reversible hot rolling mill, and the other is located downstream, while the furnace with a winder is full! with the possibility of receiving intermediate product winding when it is passed between furnaces with a reel and through the reversible state of hot rolling for compression or rolling into a product of final thickness, distinguished by the fact that it contains (87 means for storing and alternating slabs for selective storage and alternating selected slabs, while the reversible state of hot rolling is installed in line with the feeding and working roller gang for compressing or rolling the slab coming out of the heating furnace into an intermediate product with a thickness of 335, sufficient for rolling into a roll. b. The installation according to claim 5, characterized by the fact that it additionally contains a conveyor for slabs installed in line with the cutter, and the means for alternating and storing the slabs includes means for transferring the slab adjacent to the conveyor for slabs installed across the conveyor for slabs and communicating with the feed and working roller conveyor , and the slab collection and storage area adjacent to the slab transfer facility 70, adapted for selective reception of slabs from it. - about the village 7. Installation according to point b, characterized by the fact that it additionally contains a pair of heating furnaces, while the first heating furnace is located between the feeding and working roller conveyor and the conveyor; for slabs, and the second heating furnace is located downstream and adjacent to the first heating furnace, and its inlet end is combined with a conveyor for slabs, and its inlet is combined with a feeding and working roller conveyor. her" 8. Installation according to claim 5, characterized by the fact that the feeding and working roller conveyor is installed in one line with the cutter with the possibility of receiving slabs directly from it, while the means for alternating and storing the slabs includes a means of transferring the slab adjacent to the feeding and working roller conveyor, and installed across the feeding and working roller conveyor for selective removal of slabs from the feeding and working roller conveyor, a conveyor for slabs adjacent to the means of transferring the slab and installing it with the possibility of receiving slabs from it in the area of collection and storage of slabs adjacent to it. F 9. Installation according to claim 5, characterized by the fact that it additionally includes a conveyor for slabs installed in one line with the cutter, while the means for storing and alternating slabs includes at least one vertically stackable container for storing slabs filled in the form of a Container , located adjacent to the conveyor for slabs, while the container includes a vertically movable cart for maintaining a stack of slabs. (F, 10. Slab storage capacity, equipped with means for holding slabs and located between the continuous casting installation and the reversible hot rolling mill, characterized by the fact that it is filled in the form of a container and with the possibility of selective reception of slabs from the casting installation, although the container contains a vertically movable cart installed with the possibility of engagement with the lowest slab from those installed in a stack inside the container, which are in direct contact with each other. b5