CN206500438U - A kind of hot rolled steel plate production system - Google Patents
A kind of hot rolled steel plate production system Download PDFInfo
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- CN206500438U CN206500438U CN201720212861.5U CN201720212861U CN206500438U CN 206500438 U CN206500438 U CN 206500438U CN 201720212861 U CN201720212861 U CN 201720212861U CN 206500438 U CN206500438 U CN 206500438U
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- steel plate
- hot rolled
- rolled steel
- production system
- finishing mill
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Abstract
The utility model belongs to technical field of metal heat treatment, more particularly to a kind of hot rolled steel plate production system, it includes heater, the first descaling device, roughing mills, Coil Box, the second descaling device, mm finishing mill unit, cooling facility for laminar flow and the first coiling machine set gradually, wherein：Flattening mm finishing mill unit and the second coiling machine are also disposed with after first coiling machine.Hot rolled steel plate production system of the present utility model can improve the intensity of the hot rolled steel plate of production, compact arrangement of equipment, and production efficiency is high, the cycle is short, cost is low.
Description
Technical field
The utility model belongs to technical field of metal heat treatment, is related to a kind of hot rolling system, more particularly to a kind of hot-rolled steel
Plate production system.
Background technology
In industry manufacture field, the application of low-alloy structural steel is extremely wide, such as nigh-level synthesis, bridge, and
Automobile, railway, tunnel, high intensity part of engineering machinery etc., compared with common carbon structural steels, intensity is higher, toughness more
It is good.Existing more research in terms of domestic industrial production and products application to low-alloy structural steel, although some steel plates have
Higher yield strength and tensile strength, but usually require to be annealed after batching, heat treatment and the cold-rolling process such as normalizing, from
And intensity and machinability required for reaching, production cost is higher, and the manufacturing cycle is long, and efficiency is low, cumbersome, and
Quality is difficult to ensure that in heat treatment process；In addition, also need to set up annealing device and apparatus for cold rolling in addition to arranging hot rolling system,
Space needed for equipment arrangement is big, and production system investment is high.
Utility model content
The purpose of this utility model is to provide a kind of hot rolled steel plate production system, and it can improve the strong of hot rolled steel plate
Degree, and compact arrangement of equipment, production efficiency are high, the cycle is short, cost is low.
To achieve these goals, the utility model provides a kind of hot rolled steel plate production system, including sets gradually
Heater, the first descaling device, roughing mills, Coil Box, the second descaling device, mm finishing mill unit, cooling facility for laminar flow and
First coiling machine, wherein：Flattening mm finishing mill unit and the second coiling machine are also disposed with after first coiling machine.
Further, it is additionally provided with the straightener processed to steel plates straightening between the first coiling machine and flattening mm finishing mill unit.
Further, the crop that hot rolled steel plate production system also includes being arranged between Coil Box and the second descaling device flies
Cut.
Further, it is additionally provided between the first descaling device and roughing mills to determining that width of steel billet direction is rolled
Wide forcing press.
Further, the first descaling device and/or the second descaling device are provided with for adjusting de-scaling water and pressure
Frequency converter.
Further, roughing mills and/or mm finishing mill unit and/or flattening mm finishing mill unit are steekle mill or multi-frame tandem rolling
Machine.
Further, mm finishing mill unit and/or flattening mm finishing mill unit are to be set respectively between Multi-stand continuous rolling mill, each adjacent rack
It is equipped with the looper for adjusting steel plate tension force.
Further, it is also single immediately following monitoring is provided with after roughing mills and/or mm finishing mill unit and/or flattening mm finishing mill unit
Member, monitoring unit includes temperature monitoring unit, convexity monitoring unit, glacing flatness monitoring unit, thickness monitor unit, width monitoring
One or more in unit.
Further, hot rolled steel plate production system also includes the rolling computer center control for controlling whole steel sheet production system
System processed, rolling computer central control system respectively with heater, the first descaling device, fixed-width pressure machine, roughing mills,
Coil Box, crop flying shear, the second descaling device, mm finishing mill unit, cooling facility for laminar flow, the first coiling machine, straightener, flattening finish rolling
Unit, the second coiling machine, the control system of looper and monitoring unit electrical connection.
Further, the first coiling machine and the second coiling machine are three-roller type downcoiler, and 3 are set respectively.
Hot rolled steel plate production system of the present utility model, has the advantages that：
1st, on the basis of original hot rolled steel plate production system, flattening mm finishing mill unit is added, after being rolled to mm finishing mill unit
The steel plate batched flattens finish rolling again, to induce trace alloying element further to be separated out in ferrite, produces and significantly separates out by force
Change, so as to improve the intensity of hot rolled steel plate.
2nd, annealing device and apparatus for cold rolling need not be arranged so that equipment arrangement is compacter, reduces arrangement hot-rolled steel
Invested needed for plate production system.
3rd, using hot rolled steel plate production system of the present utility model, by controlling related rolling technological parameter to produce
Go out with relatively low hardness and the hot rolled steel plate compared with high-ductility, so as to realize the purpose softened online.
4th, rolling computer central control system is electrically connected with the control system and monitoring unit of each equipment respectively, is realized
The on-line monitoring and control of hot-rolled steel plate process, it is ensured that the quality of production of hot rolled steel plate.
5th, the front and back end of the steel plate after crop flying shear can roll roughing mills is bad and temperature reduces Partial Resection,
Ensure the stability into the steel billet of mm finishing mill unit, so as to ensure that the quality of final steel plate.
6th, the steel plate of hot rolled steel plate production system of the present utility model is latter until steel plate finished product by heating devices heat
Overall process is temperature-fall period, middle without heating to steel plate, therefore has saved the energy, reduces production cost.
7th, hot rolled steel plate production system of the present utility model, production cost is low, and the manufacturing cycle is short, efficiency high, without carrying out
Subsequent heat treatment, it is simple to operate.
Brief description of the drawings
, below will be to embodiment for clearer explanation the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it is clear that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 arranges schematic diagram for a kind of equipment of embodiment of the utility model hot rolled steel plate production system；
Fig. 2 arranges schematic diagram for the equipment of another embodiment of the utility model hot rolled steel plate production system；
Fig. 3 arranges schematic diagram for the equipment of another embodiment of the utility model hot rolled steel plate production system；
Fig. 4 is the module diagram of the rolling computer central control system of the utility model hot rolled steel plate production system；
In figure：1- heaters, 2- roughing steel plate, the descaling devices of 3- first, 4- fixed-width pressure machines, 5- roughing mills, 6-
Coil Box, 7- crop flying shears, the descaling devices of 8- second, 9- mm finishing mill units, 10- cooling facility for laminar flow, the coiling machines of 11- first, 12-
Straightener, 13- flattenings mm finishing mill unit, the coiling machines of 14- second, 15- the first split Stand Mills steekle mill, 16- second are separated
Formula Stand Mill steekle mill, 17- four-high reversing mills
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model embodiment is carried out it is clear,
Complete description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole implementation
Example.Based on the embodiment in the utility model, those skilled in the art is not on the premise of creative work is made
The all other embodiment obtained, belongs to protection domain of the present utility model.
As shown in figure 1, a kind of hot rolled steel plate production system of the utility model embodiment, including the heating dress set gradually
Put the 1, first descaling device 3, roughing mills 5, Coil Box 6, the second descaling device 8, mm finishing mill unit 9, cooling facility for laminar flow 10 with
And first coiling machine 11, wherein：The flattening coiling machine 14 of mm finishing mill unit 13 and second is also disposed with after first coiling machine 11.
Specifically, after molten steel removes sulphuring treatment through dephosphorization, the concise stove LF of progress ladle is concise, and Si- is added in refinery practice
The alloys such as Fe, Al-Fe, Mn-Fe, Ti-Fe, V-Fe, and C powder, adjust containing for the trace alloying elements such as Si, Al, Mn, Ti, V
Amount, is cast into steel billet；Steel billet sends into heater 1, is heated to required technological temperature, and carry out isothermal holding；After heating
Steel billet be delivered to the first descaling device 3, the first descaling device 3 carries out de-scaling operation, operating process to the upper and lower surface of steel billet
In should strictly control de-scaling water and pressure, it is ensured that iron oxide on surface of billet steel skin is completely removed, it is to avoid billet rolling process
It is middle that iron scale is pressed into surface of steel plate, while abrasion of the iron scale to rolling equipment roll can also be avoided, extension rolling
The service life of equipment, while ensureing plate quality；Steel billet feeding roughing mills 5 after the de-scaling processing of surface carry out roughing, obtain
To roughing steel plate 2, the temperature control of the passage of roughing, the volume under pressure of each passage and each passage should be in strict accordance with related work
Skill is performed, and roughing mills 5 of the present utility model are suitable for carrying out the quick of big volume under pressure to steel billet in austenite recrystallization region
Rolling, can substantially shorten rolling time, improve production efficiency；Afterwards, roughing steel plate 2 is batched by Coil Box 6, and carry out samming with
Isothermal holding, automatic uncoiling after being disposed, the isothermal holding of Coil Box 6 can be significantly shorter the head and the tail temperature of roughing steel plate 2
Difference, it is ensured that hot-rolled steel plate quality, while Coil Box 6 also acts as the buffering linking to production line steel plate, it is to avoid the hair of piling of steel phenomenon
Raw, the outside of Coil Box 6 is provided with stay-warm case, to improve insulation and even temperature effect；Steel plate after the isothermal holding of Coil Box 6 by
Second descaling device 8 carries out secondary descaling steel operation again, and de-scaling water and pressure equally should be strictly controlled in operating process, with
Ensure that surface of steel plate secondary oxidation iron sheet is completely removed；Steel plate feeding mm finishing mill unit 9 after secondary descaling steel carries out finish rolling and obtained
Finish rolling steel plate, the temperature control of the passage of finish rolling, the volume under pressure of each passage and each passage should be held in strict accordance with related process
OK, to ensure the organizational composition and form inside hot rolled steel plate；Then, finish rolling steel plate is dropped by cooling facility for laminar flow 10
Temperature processing, cooling velocity is usually 25~30 DEG C/s, by controlling the size of steel plate interior tissue form and crystal grain thinning, so that
Improve the machinability of steel plate, that is, cause steel plate that there is relatively low hardness and higher plasticity, cooling facility for laminar flow 10 with slightly
Milling train group 5 and the processing of mm finishing mill unit 9 coordinate the online softening for realizing steel plate；Finish rolling steel plate is cooled to after corresponding technological temperature
Batched by the first coiling machine 11, obtain finish rolling roll of steel plate；Deploy immediately after the winding of finish rolling roll of steel plate, feeding flattening mm finishing mill unit
13, finish rolling again is carried out, final finish rolling steel plate is obtained, opens a book and deploys the microalloy element in finish rolling deformation inductdion austenite
Further separated out in ferrite, produce notable precipitation strength, improve armor plate strength；Final finish rolling steel plate is by the second coiling machine
14 batch, air cooling, obtain final hot rolled steel plate finished product.
Hot rolled steel plate production system of the present utility model on the basis of original production system by increasing flattening finishing mill
Group, improves the intensity of hot rolled steel plate；Meanwhile, without arranging annealing device and apparatus for cold rolling so that equipment arrangement is more stepped up
Gather, reduce investment needed for arrangement hot rolled steel plate production system；Also, the steel plate of hot rolled steel plate production system of the present utility model
It is latter until the overall process of steel plate finished product is temperature-fall period by heating devices heat, it is middle without heating to steel plate,
Therefore the energy has been saved, has reduced production cost；In addition, hot rolled steel plate production system of the present utility model also has the manufacturing cycle
It is short, efficiency high, simple operation and other advantages.
Further, as shown in Fig. 2 being additionally provided between the first coiling machine 11 and flattening mm finishing mill unit 13 to steel plates straightening
The straightener 12 of processing.Steel plate is in rolling, cooling and shear history, due to plastic deformation inequality, heating and inhomogeneous cooling etc.,
The plastic deformation such as certain bending, shape wave, or internal generation residual stress, therefore 12 pairs of necessary use straightener can be produced
Steel plate carries out aligning processing, corrects the shape of steel plate and eliminates residual stress.It is preferred that, the roller number of straightener 12 is more than or waited
In 9.
It is preferred that, heater 1 is walking beam furnace, and the steel billet of heating is not limited by end surface shape and size；Plus
Thermal control is flexibly, widely applicable；Walking beam furnace has preheating section, three sections of continous ways of bringing-up section and soaking zone, heating steel billet
Temperature is uniform；Heater 1 uses walking beam furnace, can also complete storage and the production buffering of strand in production, reduce plate
Base scaling loss, improves lumber recovery.Firing rate, heat time and heating-up temperature etc. should be strictly controlled in heating process, i.e., according to steel
Plant and finished product requires to determine firing rate model, time inside furnace and heating-up temperature, then add the communicated roller-way feeding of steel billet
Thermal 1 is heated.Heating steel billet is it is noted that prevent the defects such as the oxidation of steel, decarburization, overheat burning.
Further, as shown in Fig. 2 hot rolled steel plate production system of the present utility model can also include being arranged on Coil Box
6 and the second crop flying shear 7 between descaling device 8, the front and back end shape for the roughing steel plate 2 that can obtain roughing mills 5 is not
Good, such as fish tail, tang are removed and trimmed, or the larger Partial Resection of tail temperature deviation, so as to ensure that steel plate is subsequently rolled
And the stability in batching, improve steel plate final product quality.
Further, as shown in Fig. 2 hot rolled steel plate production system of the present utility model can also be removed including being arranged on first
The fixed-width pressure machine 4 rolled to width of steel billet direction between squama device 3 and roughing mills 5.Fixed-width pressure machine 4 can be adopted
With the short tup fixed-width pressure machine of continous way, to realize the side pressure to the total length continous way of high temperature billet steel, with traditional vertical miller
Compared to bigger width adjusting amount, and the stepless regulating of drafts can be realized, so that when ensureing that steel billet enters roughing mills 5
The size of width.
Further, the first descaling device 3 and/or the second descaling device 8 are provided with for adjusting de-scaling water and pressure
Frequency converter.Adjust de-scaling water and pressure using frequency converter, the material and de-scaling of the output pump discharge of pump because of steel billet/steel plate
Velocity variations and change, the power output of motor also changes therewith.Flow, pressure adjustment can be by setting pressure transmitter
Setting value is realized, simple to operate, and automaticity is high, and good energy saving property, system water consumption, power consumption are all very low, operation
Expense is few.
Further, roughing mills 5 and/or mm finishing mill unit 9 and/or flattening mm finishing mill unit 13 are volume stove milling train or multi-frame
Tandem mill.As shown in Fig. 2 roughing mills 5 and/or mm finishing mill unit 9 and/or flattening mm finishing mill unit 13 are Multi-stand continuous rolling mill,
Roughing mills 5 are edger roll reversible mill, wherein the second frame roughing mill is four-high reversing mill, the pressure system in rough rolling process
Degree and RPM schedule input roughing mills control system after being calculated with corresponding mathematical modeling；Mm finishing mill unit 9 is F1~F7 machines
Frame in-line arranges that mm finishing mill unit 9 is that continual rolling uses increasing speed rolling；Threading speed, acceleration, the maximum of mm finishing mill unit 9 are rolled
Speed processed, each frame drafts, working roll roll shifting stroke, each frame bending roller force etc. press rolled steel by mm finishing mill unit control system
The kind and specification of plate are calculated and set the closed-loop control for realizing plate shape；It is that 1~2 frame four-roller is reversible to flatten mm finishing mill unit 13
Formula milling train in-line arranges that each frame drafts, mill speed, tension adjustment in the operation of rolling etc. is by flattening mm finishing mill unit
Control system is controlled and adjusted.As shown in figure 3, roughing mills 5 and/or mm finishing mill unit 9 and/or flattening mm finishing mill unit 13 are equal
For volume stove milling train, wherein roughing mills 5 are the first split Stand Mill steekle mill 15, and mm finishing mill unit 9 is that the second split is double
Frame steekle mill 16, mm finishing mill unit 9 is an opposite opened Stand Mill steekle mill with roughing mills 5, and flattening mm finishing mill unit 13 is 1
The in-line of~2 frame four-high reversing mill 17 arranges, the control of working process parameter it is same by roughing mills, mm finishing mill unit, with
And the control system of flattening mm finishing mill unit carries out On-line Control and regulation.
Further, mm finishing mill unit 9 and/or flattening mm finishing mill unit 13 are to divide between Multi-stand continuous rolling mill, each adjacent rack
The looper for adjusting steel plate tension force is not provided with.During steel plate rolling, mm finishing mill unit 9, which is constantly present, stings steel
When dynamic velocity drop, be constantly present various interference again in the stable rolling stage, it is impossible to remain good between each frame
Speeds match relation, looper absorbs the set amount formed in Biting Course with its cushioning effect, so as to realize finishing mill
Group 9 or the constant small tension receiving coil or tension-free steel plate rolling for flattening mm finishing mill unit 13.
Further, the first coiling machine 11 and the second coiling machine 14 are three-roller type downcoiler, and 3 are set respectively
Platform.Three-roller type downcoiler is suitable for for slab and thin plate, is more suitable for produced on-site needs, while many are provided with, can
To ensure the continuity of Plate Production, Plate Production efficiency is improved.
In some above-mentioned embodiments of hot rolled steel plate production system of the present utility model, roughing mills 5 and/or mm finishing mill unit
9 and/or flattening mm finishing mill unit 13 after also immediately following monitoring unit is provided with, monitoring unit includes temperature monitoring unit, convexity and monitored
One or more in unit, glacing flatness monitoring unit, thickness monitor unit, width monitoring unit, for constantly monitoring steel plate
Temperature, surface convexity, linearity, thickness and width, it is ensured that the surface quality and specification of steel plate.Specifically, thick
Temperature monitoring unit, width monitoring unit and thickness monitor unit are provided with after milling train group 5；In the F7 finish rolling of mm finishing mill unit 9
Machine exit is provided with convexity monitoring unit, glacing flatness monitoring unit, thickness monitor unit, width monitoring unit, temperature monitoring list
Member；Convexity monitoring unit, glacing flatness monitoring unit, thickness monitor unit, width monitoring list are provided with after flattening mm finishing mill unit 13
Member, temperature monitoring unit；In addition, when mm finishing mill unit 9 and flattening mm finishing mill unit 13 are Multi-stand continuous rolling mill, between each frame
Tension monitoring unit is additionally provided with, the constantly monitoring for tension force during steel plate rolling.Wherein, temperature monitoring unit, convexity
Monitoring unit, glacing flatness monitoring unit, thickness monitor unit, width monitoring unit and tension monitoring unit can be corresponding
Various measuring instruments.
Further, as shown in figure 4, hot rolled steel plate production system of the present utility model also includes controlling whole Plate Production
The rolling computer central control system of system, rolling computer central control system is filled with heater 1, the first de-scaling respectively
Put 3, fixed-width pressure machine 4, roughing mills 5, Coil Box 6, crop flying shear 7, the second descaling device 8, mm finishing mill unit 9, section cooling
Device 10, the first coiling machine 11, straightener 12, flattening mm finishing mill unit 13, the second coiling machine 14, looper control system with
And monitoring unit electrical connection, it is achieved thereby that the whole steel plate process of hot rolled steel plate production system of the present utility model is rolled
Part tracking, computer operational guidance, the setting of operation of rolling various parameters, the constantly monitoring of plate surface quality and size, with
And receive the control with computational intelligence of each apparatus control system feedback information progress feedback regulation, and then ensure that hot rolled steel plate
The quality of production.
Specifically, the control parameter of input required for each control system, such as heating-up temperature of heater 1 and time, the
The de-scaling water and pressure of the descaling device 8 of one descaling device 3/ second, the drafts of fixed-width pressure machine 4, the finish rolling of roughing mills 5/
The volume under pressure and speed parameter, the coiling speed of Coil Box 6 and soaking time, looper of the flattening mm finishing mill unit 13 of unit 9/
Pressure parameter, coiling speed, the speed of straightener 12 and the pressure of the coiling machine 14 of the first coiling machine 11/ second, section cooling dress
13 water-carrying capacity etc. is put, the control system of each equipment, control device operation can be directly inputted to；Or by rolling computer center
Control system inputs and generated the control system that control information is transferred to relevant device, controls the operation of each equipment；Each monitoring is single
The monitoring information of member is directly transferred to roll computer central control system, and rolling computer central control system receives monitoring letter
Breath, which is changed into after data message, to be compared and judges with setting numerical value, and to corresponding equipment output control signal；Respectively set
The state parameter that standby control system constantly runs respective equipment constantly feeds back to rolling computer central control system, rolling
Computer central control system receives feedback information and generates corresponding control signal.
The utility model is further described by specific embodiment above, it should be understood that, have here
The description of body, should not be construed as the restriction to spirit and scope of the present utility model, and one of ordinary skilled in the art is readding
The various modifications made after reader specification to above-described embodiment, belong to the scope that the utility model is protected.
Claims (10)
1. a kind of hot rolled steel plate production system, including heater, the first descaling device, roughing mills, the hot rolling set gradually
Case, the second descaling device, mm finishing mill unit, cooling facility for laminar flow and the first coiling machine, it is characterised in that：First coiling machine
Flattening mm finishing mill unit and the second coiling machine are also disposed with afterwards.
2. hot rolled steel plate production system according to claim 1, it is characterised in that first coiling machine and the flattening
The straightener processed to steel plates straightening is additionally provided between mm finishing mill unit.
3. hot rolled steel plate production system according to claim 2, it is characterised in that also including be arranged on the Coil Box with
Crop flying shear between second descaling device.
4. hot rolled steel plate production system according to claim 3, it is characterised in that first descaling device with it is described thick
The fixed-width pressure machine rolled to width of steel billet direction is additionally provided between milling train group.
5. hot rolled steel plate production system according to claim 1, it is characterised in that first descaling device and/or institute
State the second descaling device and be provided with frequency converter for adjusting de-scaling water and pressure.
6. hot rolled steel plate production system according to claim 1, it is characterised in that the roughing mills and/or finishing mill
Group and/or flattening mm finishing mill unit are steekle mill or Multi-stand continuous rolling mill.
7. hot rolled steel plate production system according to claim 4, it is characterised in that the mm finishing mill unit and/or flattening essence
Milling train group is the looper for being separately provided for adjusting steel plate tension force between Multi-stand continuous rolling mill, each adjacent rack.
8. hot rolled steel plate production system according to claim 7, it is characterised in that in the roughing mills and/or finish rolling
Also immediately following monitoring unit is provided with after unit and/or flattening mm finishing mill unit, the monitoring unit includes temperature monitoring unit, convexity
One or more in monitoring unit, glacing flatness monitoring unit, thickness monitor unit, width monitoring unit.
9. hot rolled steel plate production system according to claim 8, it is characterised in that also including controlling whole Plate Production system
The rolling computer central control system of system, the rolling computer central control system respectively with the heater, first
Descaling device, fixed-width pressure machine, roughing mills, Coil Box, crop flying shear, the second descaling device, mm finishing mill unit, section cooling dress
Put, the first coiling machine, straightener, flattening mm finishing mill unit, the second coiling machine, the control system of looper and the monitoring list
Member electrical connection.
10. hot rolled steel plate production system according to claim 1, it is characterised in that first coiling machine and described
Second coiling machine is three-roller type downcoiler, and 3 are set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212861.5U CN206500438U (en) | 2017-03-07 | 2017-03-07 | A kind of hot rolled steel plate production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212861.5U CN206500438U (en) | 2017-03-07 | 2017-03-07 | A kind of hot rolled steel plate production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206500438U true CN206500438U (en) | 2017-09-19 |
Family
ID=59841547
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720212861.5U Expired - Fee Related CN206500438U (en) | 2017-03-07 | 2017-03-07 | A kind of hot rolled steel plate production system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106853461A (en) * | 2017-03-07 | 2017-06-16 | 华北理工大学 | A kind of hot rolled steel plate production system |
| CN108393356A (en) * | 2018-04-20 | 2018-08-14 | 天津重电气自动化有限公司 | A kind of electric-control system applied to hot continuous rolling Coil Box and flying shear |
-
2017
- 2017-03-07 CN CN201720212861.5U patent/CN206500438U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106853461A (en) * | 2017-03-07 | 2017-06-16 | 华北理工大学 | A kind of hot rolled steel plate production system |
| CN108393356A (en) * | 2018-04-20 | 2018-08-14 | 天津重电气自动化有限公司 | A kind of electric-control system applied to hot continuous rolling Coil Box and flying shear |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |