EP0233796A1 - Continuous casting machines - Google Patents

Continuous casting machines Download PDF

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Publication number
EP0233796A1
EP0233796A1 EP87400056A EP87400056A EP0233796A1 EP 0233796 A1 EP0233796 A1 EP 0233796A1 EP 87400056 A EP87400056 A EP 87400056A EP 87400056 A EP87400056 A EP 87400056A EP 0233796 A1 EP0233796 A1 EP 0233796A1
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EP
European Patent Office
Prior art keywords
plates
oscillation table
mold
continuous casting
small
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87400056A
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German (de)
French (fr)
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EP0233796B1 (en
Inventor
Joseph Pietryka
Joel Cazaux
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Fives Cail Babcock SA
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Fives Cail Babcock SA
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Priority to AT87400056T priority Critical patent/ATE42052T1/en
Publication of EP0233796A1 publication Critical patent/EP0233796A1/en
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Publication of EP0233796B1 publication Critical patent/EP0233796B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls

Definitions

  • the present invention relates to continuous casting machines used for the production of flat products with rectangular section called slabs.
  • These machines comprise a chassis carrying, at its top, an oscillation table on which the mold is fixed and, below, a corset of guide rollers forming a generally curved passage extending the cavity of the mold.
  • the mold is formed by four plates, two small plates clamped between two large plates, which are mounted on a frame carrying means for applying clamping forces on the large plates and means for adjusting the spacing of the small plates: this frame is fixed on the oscillation table.
  • this frame is fixed on the oscillation table.
  • the guide roller corset is in several parts.
  • the upper part placed immediately below the mold is formed of small diameter rollers placed very close to each other.
  • To change the thickness of the cast product it is also necessary to disassemble this part of the corset to adjust the spacing of the rollers. This disassembly is done from above, through the oscillation table, after the mold has been removed.
  • the other parts of the corset are made up of pairs of rollers, the spacing of which can be adjusted without having to dismantle them.
  • the ingot mold park represents a significant investment and to reduce its cost, it is proposed, in accordance with the present invention, to remove the frame from the ingot mold and to mount the large plates, the clamping means and the position adjustment means. small plates on the oscillation table, and small plates on supports integral with the adjustment means.
  • the means for fixing the large plates on the oscillation table, on the one hand, and small plates on their support, on the other hand, are designed to allow rapid installation and disassembly of the plates and to ensure the connection of the cooling water circuits of the plates to the water supply and evacuation pipes which lead to and from the oscillation table and the support for small plates.
  • the adjustment means and / or the supports of the small plates are eclipsable and the clamping means of the large plates are placed near the edges of the opening made in the oscillation table to clear this opening and allow disassembly of the upper part of the guide roller corset through the oscillation table, after dismantling the large plates.
  • the means for adjusting the position of the small plates may be pivotally mounted around axes parallel to the short sides of the mold and perpendicular to the axis of the latter, and means will be provided to tilt them around these axes to release the opening of the oscillation table.
  • the clamping means may include a first set of cylinders applying one of the large plates to abutments of the oscillation table defining a reference surface and a second set of cylinders acting on the other large plate to clamp the small plates between the two large plates.
  • the clamping means and the means for adjusting the spacing of the small plates situated on the same side of the oscillation table can be mounted on a frame fixed on the oscillation table to form a removable assembly. This solution facilitates the dismantling of these means when this is necessary, for example if they have been damaged as a result of a molten steel leak.
  • the continuous slab casting machine shown in the drawings is of the curved type. It consists of a vertical frame 10 carrying at its top an oscillation table 12 on which is mounted a mold 14.
  • the frame 10 also supports a corset of guide rollers in several parts.
  • the part upper 16 of the corset which is located immediately below the ingot mold, is housed in the upper part 18, in the form of a frame of the chassis 10. It comprises a cage-shaped chassis carrying two parallel rows of rollers and provided on its sides of four pins 20, two on each side, resting on chairs 22 fixed inside the frame 18.
  • the upper part of the corset can be dismantled from above, by means of an overhead crane.
  • the other parts of the corset consist of segments 24 fixed to the frame 10 and each comprising several pairs of rollers.
  • An eccentric mechanism 26 makes it possible to impose on the oscillation table 12 reciprocating movements of small amplitude in a direction substantially parallel to the tangent to the axis of the mold cavity at its lower end.
  • This mechanism can, for example, be of the type covered by patent No. 81.15430 and addition No. 82.06730 certificate.
  • the oscillation table consists of a rectangular section frame.
  • the mold consists of four composite plates or panels, two narrow panels 28 29 and two wide panels 30, 31 assembled to form a rectangular section molding cavity, the two narrow panels which constitute the short sides of the mold. being clamped between the two wide panels which constitute the long sides.
  • the long sides of the mold are each formed of an inner copper plate 32 fixed on a steel box 34 serving both to give sufficient rigidity to the sides and to supply cooling water to channels formed in the copper plate, and to evacuate.
  • the boxes 34 have an ear 36. It is through these ears that the long sides of the mold rest on the short sides of the oscillation table. More specifically, these ears are fixed, by rapid fixing means, to water boxes 38 mounted on the short sides of the oscillation table. These water boxes are connected to pipes 40 which make it possible to bring the cooling water inside the boxes 34 and to evacuate it through the ears 36 which are hollow.
  • Each of the water boxes on which the large outer side 30 of the mold, which is fixed, is made integral with the oscillation table by a horizontal axis parallel to the large faces on this side.
  • This assembly ( Figure 5) allows certain movements of the water boxes and therefore of the panel 30 relative to the table and facilitates the machining of the table and the long sides and their assembly.
  • the other large side 31 must be able to be moved perpendicular to its plane to adjust the width of the mold. This is why the water boxes to which it is attached are mounted on the short sides of the oscillation table so that they can slide along them.
  • the water boxes are provided with heels which are retained in slides secured to the oscillation table ( Figure 6). A clearance is provided between the heels and the slides to allow certain movements of the panel relative to the oscillation table.
  • the large outer side 30 is held in abutment against four stops 41, provided at two different levels on the short sides of the oscillation table, by two screw jacks 42 mounted on the oscillation table, near the short sides. These jacks are situated at an intermediate level between those of the upper and lower stops 41, preferably substantially at the level of the result of the hydrostatic pressure forces acting on the long sides of the mold when it is in service, that is to say - say two thirds of the height from the level of the liquid metal.
  • the stops 41 define a reference surface which allows perfect alignment of the inner face of the side 30 and of the bearing surface defined by the outer row of the rollers of the corset 16.
  • Two other jacks 44 placed opposite the jacks 42 on the other long side of the oscillation table, act on the long side 31 of the mold to clamp the short sides 28 and 29 between the long sides 30 and 31.
  • the axes of the jacks 42 and 44 are in two vertical planes located near the short sides of the oscillation table and passing approximately in the middle of the stops 41.
  • the short sides of the mold are each formed of an inner copper plate 50 fixed on a steel support plate 52 serving to stiffen the copper plate and to bring the cooling water to the channels formed in the latter and to evacuate it.
  • the plates 50 and 52 form an assembly which is fixed to a support plate 54 by rapid fixing means which simultaneously ensure the connection of the water inlet and outlet orifices arranged in the plate 52 to inlet pipes and starting points connected to plate 54.
  • Each support plate is fixed to the end of the arm or arms of a device 56 for adjusting the position of the short side of the mold which is mounted on the short side adjacent to the oscillation table.
  • these devices comprise two telescopic arms 58, the length of which can be modified, to move the short side and adjust its inclination, using motorized screw and nut mechanisms.
  • These devices 56 are mounted on the oscillation table so as to be able to tilt by pivoting about horizontal axes 60 parallel to the faces of the short sides of the mold. This tilting is controlled by jacks 62 and allows the opening of the oscillation table to be cleared and the upper part of the guide corset to be dismantled through this opening.
  • the panels 28, 29, 30, 31 are provided with hooking means making it possible to suspend them from the hook of an overhead crane.
  • a lifting beam 64 constituted by a frame allowing the simultaneous disassembly of the four panels and possibly of the upper part of the guide corset.
  • the panels 30 and 31 and the plates 50-52 on the short sides are hooked to the lifter, the rods of the jacks 42 and 44 are removed, the fastenings between the plates 50 and 52 on the short sides and their supports 54 are removed and between the ears of the panels 30 and 31 and the water boxes 38 and the panels and the plates are released by lifting them by means of the overhead crane.
  • reverse operations are carried out.
  • the water boxes 38, the clamping cylinders 42 and 44 and the adjustment devices 56 are fixed to the oscillation table so that they can be dismantled for repair or maintenance.
  • the water boxes, the clamping cylinders and the adjustment devices situated on the same side of the oscillation table can be mounted on a common frame removably fixed on the oscillation table. This solution allows rapid disassembly of these organs when they have been damaged, for example following a breakthrough in metal. All of these members could also be mounted on a frame of the same shape and size as the oscillation table and removably fixed thereon.
  • the long sides of the mold could rest directly on the oscillation table or on the frames carrying the clamping cylinders and the position adjustment devices. on the short sides, the cooling water supply and discharge pipes being connected to the long sides by quick couplings or other known means.
  • the devices for adjusting the position of the short sides of the mold could be mounted on slides, instead of being pivotally mounted, and moved apart in translation to clear the opening of the oscillation table. In the case where only slight variations in the width of the slabs produced are provided, it may be sufficient to retract the supports from the short sides, without moving the adjustment devices, to clear the opening of the oscillation table.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
  • Centrifugal Separators (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Pinball Game Machines (AREA)

Abstract

To reduce the cost of the mold, the mold of a continuous casting machine has no frame and the machine comprises an oscillating table constituted by a rectangular frame having large sides and small sides defining an opening, a mold carried by the oscillating table in this opening and comprised of two opposing large plates and two opposing small plates held tightly between the large plates. Supports for the small plates are integral with devices for adjusting the position of the small plates and jacks are provided for exerting a pressing force upon the large plates for pressing them tightly against the small plates. The large plates, the position adjusting devices and the jacks for exerting the pressing force are mounted on the oscillating table.

Description

La présente invention concerne les machines de coulée continue utilisées pour la production de produits plats à section rectangulaire appelés brames.The present invention relates to continuous casting machines used for the production of flat products with rectangular section called slabs.

Ces machines comportent un châssis portant, à son sommet, une table d'oscillation sur laquelle est fixée la lingotière et, au-dessous, un corset de rouleaux de guidage formant un passage généralement courbe prolongeant la cavité de la lingotière.These machines comprise a chassis carrying, at its top, an oscillation table on which the mold is fixed and, below, a corset of guide rollers forming a generally curved passage extending the cavity of the mold.

La lingotière est formée de quatre plaques, deux petites plaques serrées entre deux grandes plaques, qui sont montées sur un cadre portant des moyens pour appliquer des efforts de serrage sur les grandes plaques et des moyens pour régler l'écartement des petites plaques : ce cadre est fixé sur la table d'oscillation. En déplaçant les petites plaques après avoir desserré les grandes plaques, on peut modifier la longueur de la cavité de la lingotière et par conséquent la largeur du produit coulé. Pour changer l'épaisseur du produit coulé il faut changer les petites plaques. Pour cela on est obligé de démonter la lingotière, de changer les petites plaques et de les remettre en place sur la table d'oscillation. Pour que cette opération prenne le moins de temps possible, on dispose généralement de plusieurs lingotières équipées pour la coulée de brames de différentes épaisseurs et on remplace une lingotière par une autre.The mold is formed by four plates, two small plates clamped between two large plates, which are mounted on a frame carrying means for applying clamping forces on the large plates and means for adjusting the spacing of the small plates: this frame is fixed on the oscillation table. By moving the small plates after loosening the large plates, you can change the length of the mold cavity and therefore the width of the cast product. To change the thickness of the cast product, change the small plates. For this, we have to dismantle the mold, change the small plates and put them back on the oscillation table. So that this operation takes the least possible time, there are generally several ingot molds equipped for the casting of slabs of different thicknesses and one mold is replaced by another.

Le corset de rouleaux de guidage est en plusieurs parties. La partie supérieure placée immédiatement au-­dessous de la lingotière est formée de rouleaux de petit diamètre placés très près les uns des autres. Pour changer l'épaisseur du produit coulé, il est aussi nécessaire de démonter cette partie du corset pour régler l'écartement des rouleaux. Ce démontage se fait par le haut, à travers la table d'oscillation, après que la lingotière ait été enlevée. Les autres parties du corset sont formées de paires de rouleaux dont l'écartement peut être réglé sans qu'il soit nécessaire de les démonter.The guide roller corset is in several parts. The upper part placed immediately below the mold is formed of small diameter rollers placed very close to each other. To change the thickness of the cast product, it is also necessary to disassemble this part of the corset to adjust the spacing of the rollers. This disassembly is done from above, through the oscillation table, after the mold has been removed. The other parts of the corset are made up of pairs of rollers, the spacing of which can be adjusted without having to dismantle them.

Le parc de lingotières représente un investissement important et pour réduire son coût, il est proposé, conformément à la présente invention, de supprimer le cadre de la lingotière et de monter les grandes plaques, les moyens de serrage et les moyens de réglage de la position des petites plaques sur la table d'oscillation, et les petites plaques sur des supports solidaires des moyens de réglage. Les moyens de fixation des grandes plaques sur la table d'oscillation, d'une part, et des petites plaques sur leur support, d'autre part, sont conçus pour permettre une mise en place et un démontage rapides des plaques et pour assurer le raccordement des circuits d'eau de refroidissement des plaques aux tuyauteries d'amenée et d'évacuation d'eau qui aboutissent à et partent de la table d'oscillation et du support des petites plaques. Les moyens de réglage et/ou les supports des petites plaques sont éclipsables et les moyens de serrage des grandes plaques sont placés près des bords de l'ouverture ménagée dans la table d'oscillation pour dégager cette ouverture et permettre le démontage de la partie supérieure du corset de rouleaux de guidage à travers la table d'oscillation, après démontage des grandes plaques. Les moyens de réglage de la position des petites plaques pourront être montés pivotant autour d'axes parallèles aux petits côtés de la lingotière et perpendiculaires à l'axe de cette dernière, et des moyens seront prévus pour les faire basculer autour de ces axes pour dégager l'ouverture de la table d'oscillation.The ingot mold park represents a significant investment and to reduce its cost, it is proposed, in accordance with the present invention, to remove the frame from the ingot mold and to mount the large plates, the clamping means and the position adjustment means. small plates on the oscillation table, and small plates on supports integral with the adjustment means. The means for fixing the large plates on the oscillation table, on the one hand, and small plates on their support, on the other hand, are designed to allow rapid installation and disassembly of the plates and to ensure the connection of the cooling water circuits of the plates to the water supply and evacuation pipes which lead to and from the oscillation table and the support for small plates. The adjustment means and / or the supports of the small plates are eclipsable and the clamping means of the large plates are placed near the edges of the opening made in the oscillation table to clear this opening and allow disassembly of the upper part of the guide roller corset through the oscillation table, after dismantling the large plates. The means for adjusting the position of the small plates may be pivotally mounted around axes parallel to the short sides of the mold and perpendicular to the axis of the latter, and means will be provided to tilt them around these axes to release the opening of the oscillation table.

Les moyens de serrage pourront comporter un premier jeu de vérins appliquant l'une des grandes plaques sur dès butées de la table d'oscillation définissant une surface de référence et un second jeu de vérins agissant sur l'autre grande plaque pour serrer les petites plaques entre les deux grandes plaques.The clamping means may include a first set of cylinders applying one of the large plates to abutments of the oscillation table defining a reference surface and a second set of cylinders acting on the other large plate to clamp the small plates between the two large plates.

Au lieu d'être fixés individuellement sur la table d'oscillation, les moyens de serrage et les moyens de réglage de l'écartement des petites plaques situées sur un même côté de la table d'oscillation peuvent être montés sur un châssis fixé sur la table d'oscillation pour former un ensemble démontable. Cette solution facilite le démontage de ces moyens lorsque cela est nécessaire, par exemple s'ils ont été détériorés à la suite d'une fuite d'acier en fusion.Instead of being fixed individually on the oscillation table, the clamping means and the means for adjusting the spacing of the small plates situated on the same side of the oscillation table can be mounted on a frame fixed on the oscillation table to form a removable assembly. This solution facilitates the dismantling of these means when this is necessary, for example if they have been damaged as a result of a molten steel leak.

D'autres caractéristiques de l'invention apparaitront à la lecture de la description qui suit et se réfère aux dessins l'accompagnant qui montrent, à titre d'exemple non-limitatif un mode de réalisation de l'invention et sur lesquels :

  • La figure 1 est une vue de côté, partiellement en élévation et partiellement en coupe, d'une machine de coulée continue conforme à l'invention ;
  • La figure 2 est une vue de dessus de la machine ;
  • La figure 3 est une vue en coupe suivant 3 - 3 (figure 2) ;
  • La figure 4 est une demi-vue en coupe par un plan vertical montrant comment est effectué le démontage de la lingotière et de la partie supérieure du corset ; et
  • Les figures 5 et 6 montrent le détail des connections entre les grandes plaques et les boites à eau.
Other characteristics of the invention will appear on reading the description which follows and refers to the accompanying drawings which show, by way of non-limiting example an embodiment of the invention and in which:
  • Figure 1 is a side view, partially in elevation and partially in section, of a continuous casting machine according to the invention;
  • Figure 2 is a top view of the machine;
  • Figure 3 is a sectional view along 3 - 3 (Figure 2);
  • Figure 4 is a half-sectional view through a vertical plane showing how the disassembly of the mold and the upper part of the corset is carried out; and
  • Figures 5 and 6 show the details of the connections between the large plates and the water boxes.

La machine de coulée continue à brames, représentée sur les dessins est du type courbe. Elle est constituée par un châssis vertical 10 portant à son sommet une table d'oscillation 12 sur laquelle est montée une lingotière 14.The continuous slab casting machine shown in the drawings is of the curved type. It consists of a vertical frame 10 carrying at its top an oscillation table 12 on which is mounted a mold 14.

Le châssis 10 supporte également un corset de rouleaux de guidage en plusieurs parties. La partie supérieure 16 du corset, qui est située immédiatement au-­dessous de la lingotière, est logée dans la partie supérieure 18, en forme de cadre du châssis 10. Elle comprend un châssis en forme de cage portant deux rangées parallèles de rouleaux et muni sur ses flancs de quatre tourillons 20, deux de chaque côté, reposant sur des chaises 22 fixées à l'intérieur du cadre 18. La partie supérieure du corset peut être démontée par le haut, au moyen d'un pont roulant. Les autres parties du corset sont constituées par des segments 24 fixés sur le châssis 10 et comportant chacun plusieurs paires de rouleaux.The frame 10 also supports a corset of guide rollers in several parts. The part upper 16 of the corset, which is located immediately below the ingot mold, is housed in the upper part 18, in the form of a frame of the chassis 10. It comprises a cage-shaped chassis carrying two parallel rows of rollers and provided on its sides of four pins 20, two on each side, resting on chairs 22 fixed inside the frame 18. The upper part of the corset can be dismantled from above, by means of an overhead crane. The other parts of the corset consist of segments 24 fixed to the frame 10 and each comprising several pairs of rollers.

Un mécanisme à excentrique 26 permet d'imposer à la table d'oscillation 12 des mouvements alternatifs de faible amplitude suivant une direction sensiblement parallèle à la tangente à l'axe de la cavité de la lingotière au niveau de son extrémité inférieure.An eccentric mechanism 26 makes it possible to impose on the oscillation table 12 reciprocating movements of small amplitude in a direction substantially parallel to the tangent to the axis of the mold cavity at its lower end.

Ce mécanisme peut, par exemple, être du type faisant l'objet de brevet No 81.15430 et du certificat d'addition No 82.06730.This mechanism can, for example, be of the type covered by patent No. 81.15430 and addition No. 82.06730 certificate.

La table d'oscillation est constituée par un cadre à section rectangulaire.The oscillation table consists of a rectangular section frame.

La lingotière est constituée par quatre plaques ou panneaux composites, deux panneaux étroits 28 29 et deux panneaux larges 30, 31 assemblés pour former une cavité de moulage à section rectangulaire, les deux panneaux étroits qui constituent les petits côtés de la lingotière étant serrés entre les deux panneaux larges qui constituent les grands côtés.The mold consists of four composite plates or panels, two narrow panels 28 29 and two wide panels 30, 31 assembled to form a rectangular section molding cavity, the two narrow panels which constitute the short sides of the mold. being clamped between the two wide panels which constitute the long sides.

Les grands côtés de la lingotière sont formés chacun d'une plaque intérieure en cuivre 32 fixée sur un caisson en acier 34 servant à la fois à donner une rigidité suffisant aux côtés et à amener de l'eau de refroidissement à des canaux ménagés dans la plaque de cuivre, et à l'évacuer. A chacune de leur extrémité, les caissons 34 comportent une oreille 36. C'est par i'intermédiaire de ces oreilles que les grands côtés de la lingotière reposent sur les petits côtés de la table d'oscillation. Plus précisément, ces oreilles sont fixées, par des moyens de fixation rapide, sur des boites à eau 38 montées sur les petits côtés de la table d'oscillation. Ces boites à eau sont raccordées à des tuyauteries 40 qui permettent d'amener l'eau de refroidissement à l'intérieur des caissons 34 et de l'évacuer à travers les oreilles 36 qui sont creuses.The long sides of the mold are each formed of an inner copper plate 32 fixed on a steel box 34 serving both to give sufficient rigidity to the sides and to supply cooling water to channels formed in the copper plate, and to evacuate. At each of their ends, the boxes 34 have an ear 36. It is through these ears that the long sides of the mold rest on the short sides of the oscillation table. More specifically, these ears are fixed, by rapid fixing means, to water boxes 38 mounted on the short sides of the oscillation table. These water boxes are connected to pipes 40 which make it possible to bring the cooling water inside the boxes 34 and to evacuate it through the ears 36 which are hollow.

Chacune des boites à eau sur lesquelles repose le grand côté extérieur 30 de la lingotière, qui est fixe, est rendue solidaire de la table d'oscillation par un axe horizontal parallèle aux grandes faces de ce côté. Ce montage (figure 5) autorise certains mouvements des boites à eau et par conséquent du panneau 30 par rapport à la table et facilite l'usinage de la table et des grands côtés et leur assemblage.Each of the water boxes on which the large outer side 30 of the mold, which is fixed, is made integral with the oscillation table by a horizontal axis parallel to the large faces on this side. This assembly (Figure 5) allows certain movements of the water boxes and therefore of the panel 30 relative to the table and facilitates the machining of the table and the long sides and their assembly.

L'autre grand côté 31 doit pouvoir être déplacé perpendiculairement à son plan pour régler la largeur de la lingotière. C'est pourquoi les boites à eau auxquelles il est fixé sont montées sur les petits côtés de la table d'oscillation de façon à pouvoir glisser le long de ceux-­ci. Pour cela, les boites à eau sont munies de talons qui sont retenus dans des glissières solidaires de la table d'oscillation (figure 6). Un jeu est ménagé entre les talons et les glissières pour autoriser certains mouvements du panneau par rapport à la table d'oscillation.The other large side 31 must be able to be moved perpendicular to its plane to adjust the width of the mold. This is why the water boxes to which it is attached are mounted on the short sides of the oscillation table so that they can slide along them. For this, the water boxes are provided with heels which are retained in slides secured to the oscillation table (Figure 6). A clearance is provided between the heels and the slides to allow certain movements of the panel relative to the oscillation table.

Le grand côté extérieur 30 est maintenu en appui contre quatre butées 41, prévues à deux niveaux différents sur les petits côtés de la table d'oscillation, par deux vérins à vis 42 montés sur la table d'oscillation, près des petits côtés. Ces vérins sont situés à un niveau intermédiaire entre ceux des butées 41 supérieures et inférieures, de préférence sensiblement au niveau de la résultante des forces de pression hydrostatique agissant sur les grands côtés de la lingotière lorsqu'elle est en service, c'est-à-dire aux deux tiers de la hauteur à partir du niveau du métal liquide. Les butées 41 définissent une surface de référence qui permet un alignement parfait de la face intérieure du côté 30 et de la surface d'appui définie par la rangée extérieure des rouleaux du corset 16.The large outer side 30 is held in abutment against four stops 41, provided at two different levels on the short sides of the oscillation table, by two screw jacks 42 mounted on the oscillation table, near the short sides. These jacks are situated at an intermediate level between those of the upper and lower stops 41, preferably substantially at the level of the result of the hydrostatic pressure forces acting on the long sides of the mold when it is in service, that is to say - say two thirds of the height from the level of the liquid metal. The stops 41 define a reference surface which allows perfect alignment of the inner face of the side 30 and of the bearing surface defined by the outer row of the rollers of the corset 16.

Deux autres vérins 44, placés en face des vérins 42 sur l'autre grand côté de la table d'oscillation, agissent sur le grand côté 31 de la lingotière pour serrer les petits côtés 28 et 29 entre les grands côtés 30 et 31.Two other jacks 44, placed opposite the jacks 42 on the other long side of the oscillation table, act on the long side 31 of the mold to clamp the short sides 28 and 29 between the long sides 30 and 31.

Les axes des vérins 42 et 44 se trouvent dans deux plans verticaux situés près des petits côtés de la table d'oscillation et passant approximativement au milieu des butées 41.The axes of the jacks 42 and 44 are in two vertical planes located near the short sides of the oscillation table and passing approximately in the middle of the stops 41.

Les petits côtés de la lingotière sont formés chacun d'une plaque intérieure en cuivre 50 fixée sur une plaque d'appui en acier 52 servant à rigidifier la plaque de cuivre et à amener l'eau de refroidissement aux canaux ménagés dans cette dernière et à l'évacuer. Les plaques 50 et 52 forment un ensemble qui est fixé sur une plaque support 54 par des moyens de fixation rapide qui assurent simultanément le raccordement des orifices d'entrée et de sortie d'eau aménagés dans la plaque 52 à des tuyauteries d'arrivée et de départ reliées à la plaque 54.The short sides of the mold are each formed of an inner copper plate 50 fixed on a steel support plate 52 serving to stiffen the copper plate and to bring the cooling water to the channels formed in the latter and to evacuate it. The plates 50 and 52 form an assembly which is fixed to a support plate 54 by rapid fixing means which simultaneously ensure the connection of the water inlet and outlet orifices arranged in the plate 52 to inlet pipes and starting points connected to plate 54.

Chaque plaque support est fixée à l'extrémité du ou des bras d'un dispositif 56 de réglage de la position du petit côté de la lingotière qui est monté sur le petit côté adjacent de la table d'oscillation. Dans le mode de réalisation représenté sur le dessin, ces dispositifs comportent deux bras télescopiques 58 dont la longueur peut être modifée, pour déplacer le petit côté et régler son inclinaison, au moyen de mécanismes à vis et écrou motorisés.Each support plate is fixed to the end of the arm or arms of a device 56 for adjusting the position of the short side of the mold which is mounted on the short side adjacent to the oscillation table. In the embodiment shown in the drawing, these devices comprise two telescopic arms 58, the length of which can be modified, to move the short side and adjust its inclination, using motorized screw and nut mechanisms.

Ces dispositifs 56 sont montés sur la table d'oscillation de façon à pouvoir basculer en pivotant autour d'axes horizontaux 60 parallèles aux faces des petits côtés de la lingotière. Ce basculement est commandé par des vérins 62 et permet de dégager l'ouverture de la table d'oscillation et de démonter la partie supérieure du corset de guidage à travers cette ouverture.These devices 56 are mounted on the oscillation table so as to be able to tilt by pivoting about horizontal axes 60 parallel to the faces of the short sides of the mold. This tilting is controlled by jacks 62 and allows the opening of the oscillation table to be cleared and the upper part of the guide corset to be dismantled through this opening.

Les panneaux 28, 29, 30, 31, sont munis de moyens d'accrochage permettant de les suspendre au crochet d'un pont-roulant.The panels 28, 29, 30, 31 are provided with hooking means making it possible to suspend them from the hook of an overhead crane.

Pour les démonter, on utilise un palonnier 64 constitué par un cadre permettant le démontage simultané des quatre panneaux et éventuellement de la partie supérieure du corset de guidage. On accroche les panneaux 30 et 31 et les plaques 50-52 des petits côtés au palonnier, on commande le retrait des tiges des vérins 42 et 44, on supprime les fixations entre les plaques 50 et 52 des petits côtés et leurs supports 54 et entre les oreilles des panneaux 30 et 31 et les boites à eau 38 et on dégage les panneaux et les plaques en les soulevant au moyen du pont-roulant. Pour remettre en place des nouvelles plaques on effectue les opérations inverses.To dismantle them, use a lifting beam 64 constituted by a frame allowing the simultaneous disassembly of the four panels and possibly of the upper part of the guide corset. The panels 30 and 31 and the plates 50-52 on the short sides are hooked to the lifter, the rods of the jacks 42 and 44 are removed, the fastenings between the plates 50 and 52 on the short sides and their supports 54 are removed and between the ears of the panels 30 and 31 and the water boxes 38 and the panels and the plates are released by lifting them by means of the overhead crane. To replace new plates, reverse operations are carried out.

Lorsqu'il est nécessaire de démonter la partie supérieure du corset, soit pour effectuer des opérations d'entretien, soit pour régler l'écartement des rouleaux à une nouvelle valeur pour changer l'épaisseur des brames coulées, il faut aussi démonter les panneaux et plaques constituant les côtés de la lingotière ; ces deux opérations peuvent être faites successivement ou simultanément . Dans tous les cas, après avoir détaché les plaques 50-52 de leur support, on rétracte ces derniers et on fait basculer les dispositifs de réglage 56, au moyen des vérins 62, pour dégager l'ouverture de la table d'oscillation (figure 4) et permettre de soulever cette partie du corset et la faire passer dans cette ouverture. Les vérins de serrage 42 et 44 sont disposés près des petits côtés de la table d'oscillation pourne pas gêner le démontage du corset.When it is necessary to disassemble the upper part of the corset, either to carry out operations maintenance, either to adjust the spacing of the rollers to a new value to change the thickness of the cast slabs, it is also necessary to dismantle the panels and plates constituting the sides of the mold; these two operations can be carried out successively or simultaneously. In all cases, after having detached the plates 50-52 from their support, the latter are retracted and the adjustment devices 56 are tilted, by means of the jacks 62, to clear the opening of the oscillation table (FIG. 4) and allow this part of the corset to be lifted and passed through this opening. The clamping cylinders 42 and 44 are arranged near the short sides of the oscillation table so as not to hinder the disassembly of the corset.

Les boites à eau 38, les vérins de serrage 42 et 44 et les dispositifs de réglage 56 sont fixés sur la table d'oscillation de façon à pouvoir être démontés pour réparation ou entretien. En variante, les boites à eau, les vérins de serrage et les dispositifs de réglage situés sur un même côté de la table d'oscillation peuvent être montés sur un châssis commun fixé de manière amovible sur la table d'oscillation. Cette solution permet un démontage rapide de ces organes lorsqu'ils ont été endommagés par exemple à la suite d'une percée de métal. Tous ces organes pourraient aussi être montés sur un cadre de même forme et dimension que la table d'oscillation et fixé de manière amovible sur celle-ci.The water boxes 38, the clamping cylinders 42 and 44 and the adjustment devices 56 are fixed to the oscillation table so that they can be dismantled for repair or maintenance. As a variant, the water boxes, the clamping cylinders and the adjustment devices situated on the same side of the oscillation table can be mounted on a common frame removably fixed on the oscillation table. This solution allows rapid disassembly of these organs when they have been damaged, for example following a breakthrough in metal. All of these members could also be mounted on a frame of the same shape and size as the oscillation table and removably fixed thereon.

Au lieu de reposer sur la table d'oscillation par l'intermédiaire de boites à eau, les grands côtés de la lingotière pourraient reposer directement sur la table d'oscillation ou sur les châssis portant les vérins de serrage et les dispositifs de réglage des positions des petits côtés, les tuyauteries d'amenée et d'évacuation d'eau de refroidissement étant raccordées aux grands côtés par des raccords rapides ou d'autres moyens connus.Instead of resting on the oscillation table by means of water boxes, the long sides of the mold could rest directly on the oscillation table or on the frames carrying the clamping cylinders and the position adjustment devices. on the short sides, the cooling water supply and discharge pipes being connected to the long sides by quick couplings or other known means.

Les dispositifs de réglage de la position des petits côtés de la lingotière pourraient être montés sur des glissières, au lieu d'être montés pivotants, et écartés par translation pour dégager l'ouverture de la table d'oscillation. Dans le cas où on ne prévoit que de faibles variations de largeur des brames produites, il peut être suffisant de rétracter les supports des petits côtés, sans déplacer les dispositifs de réglage, pour dégager l'ouverture de la table d'oscillation.The devices for adjusting the position of the short sides of the mold could be mounted on slides, instead of being pivotally mounted, and moved apart in translation to clear the opening of the oscillation table. In the case where only slight variations in the width of the slabs produced are provided, it may be sufficient to retract the supports from the short sides, without moving the adjustment devices, to clear the opening of the oscillation table.

Il est bien entendu que toutes les modifications qui peuvent être apportées au mode de réalisation décrit par l'emploi de moyens techniques équivalents entrent dans le cadre de l'invention.It is understood that all the modifications which can be made to the embodiment described by the use of equivalent technical means are within the scope of the invention.

Claims (6)

1. Machine de coulée continue pour la production de brames comprenant une table d'oscillation constituée par un cadre rectangulaire, une lingotière portée par la table d'oscillation et formée de deux grandes plaques et deux petites plaques serrées entre les grandes plaques, des moyens pour régler la position des petites plaques, des moyens pour exercer un effort de serrage sur les grandes plaques, et un corset de rouleaux de guidage placé sous la table d'oscillation, caractérisé en ce que la lingotière ne comporte pas de cadre, en ce que les grandes plaques (30, 31), les moyens de serrage (42,44) et les moyens de réglage (56) de la position des petites plaques (28, 29) sont montés sur la table d'oscillation et en ce que les petites plaques sont montées sur des supports (54) solidaires desdits moyens de réglage (56).1. Continuous casting machine for the production of slabs comprising an oscillation table constituted by a rectangular frame, an ingot mold carried by the oscillation table and formed by two large plates and two small plates clamped between the large plates, means for adjusting the position of the small plates, means for exerting a clamping force on the large plates, and a corset of guide rollers placed under the oscillation table, characterized in that the mold does not have a frame, in that that the large plates (30, 31), the clamping means (42,44) and the adjustment means (56) of the position of the small plates (28, 29) are mounted on the oscillation table and in that the small plates are mounted on supports (54) integral with said adjustment means (56). 2. Machine de coulée continue selon la revendication 1, caractérisé en ce que les moyens de serrage (42, 44) sont disposés près des petits côtés de la table d'oscillation (12) et les moyens de réglage (56) sont éclipsables pour permettre le démontage de la partie supérieure du corset (16) par le haut, à travers la table d'oscillation.2. Continuous casting machine according to claim 1, characterized in that the clamping means (42, 44) are arranged near the short sides of the oscillation table (12) and the adjustment means (56) are eclipsable for allow disassembly of the upper part of the corset (16) from above, through the oscillation table. 3. Machine de coulée continue selon la revendication 1 ou 2, caractérisée en ce que les moyens de serrage comprennent des premiers verins (42) qui appliquent l'une des grandes plaques (30) contre des butées (41) de la table d'oscillation définissant une surface de référence et des seconds vérins (44) qui agissent sur l'autre grande plaque (31) pour serrer les petites plaques (28, 29) entre les grandes plaques.3. Continuous casting machine according to claim 1 or 2, characterized in that the clamping means comprise first cylinders (42) which apply one of the large plates (30) against stops (41) of the oscillation table defining a reference surface and second cylinders ( 44) which act on the other large plate (31) to clamp the small plates (28, 29) between the large plates. 4. Machine de coulée continue selon la revendication 1, 2 ou 3, caractérisée en ce que les moyens de réglage (56) sont montés pivotant autour d'axes (60) parallèles aux petites plaques (28, 29) et perpendiculaires à l'axe longitudinal de la lingotière et des moyens (62) sont prévus pour faire basculer lesdits moyens de réglage autour desdits axes pour dégager l'ouverture de la table d'oscillation (12).4. Continuous casting machine according to claim 1, 2 or 3, characterized in that the adjustment means (56) are pivotally mounted about axes (60) parallel to the small plates (28, 29) and perpendicular to the longitudinal axis of the mold and means (62) are provided for tilting said adjustment means around said axes to clear the opening of the oscillation table (12). 5. Machine de coulée continue selon l'une quelconque des revendications précédentes, caractérisée en ce que les grandes plaques (30, 31) sont munies à leur extrémités d'oreilles (36) reposant sur des boites à eau (38) solidaires des petits côtés de la table d'oscillation (12) et raccordées à des tuyauteries (40) d'amenée et d'évacuation d'eau de refroidissement.5. Continuous casting machine according to any one of the preceding claims, characterized in that the large plates (30, 31) are provided at their ends with ears (36) resting on water boxes (38) integral with the small sides of the oscillation table (12) and connected to pipes (40) for supplying and discharging cooling water. 6. Machine de coulée continue selon la revendication 5, caractérisée en ce que les oreilles (36) des grandes plaques sont fixées sur les boites à eau (38) et le montage des boites à eau sur la table d'oscillation est conçu pour permettre certains mouvements des boites à eau par rapport à la table d'oscillation.6. Continuous casting machine according to claim 5, characterized in that the ears (36) of the large plates are fixed on the water boxes (38) and the mounting the water boxes on the oscillation table is designed to allow certain movements of the water boxes relative to the oscillation table.
EP87400056A 1986-01-17 1987-01-13 Continuous casting machines Expired EP0233796B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87400056T ATE42052T1 (en) 1986-01-17 1987-01-13 CONTINUOUS CASTING PLANTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8600611 1986-01-17
FR8600611A FR2593098B1 (en) 1986-01-17 1986-01-17 IMPROVEMENTS IN CONTINUOUS CASTING MACHINES.

Publications (2)

Publication Number Publication Date
EP0233796A1 true EP0233796A1 (en) 1987-08-26
EP0233796B1 EP0233796B1 (en) 1989-04-12

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EP87400056A Expired EP0233796B1 (en) 1986-01-17 1987-01-13 Continuous casting machines

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US (1) US4706733A (en)
EP (1) EP0233796B1 (en)
AT (1) ATE42052T1 (en)
DE (1) DE3760096D1 (en)
FR (1) FR2593098B1 (en)

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WO1995005910A1 (en) * 1993-08-20 1995-03-02 Paul Wurth S.A. Continuous casting ingot mould
DE4444976A1 (en) * 1993-12-20 1995-06-22 Voest Alpine Ind Anlagen Continuous-casting plate mould

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JPS62130331A (en) * 1985-12-02 1987-06-12 Honda Motor Co Ltd Detecting method for pressure in cylinder
DE4447941B4 (en) * 1993-12-20 2006-06-14 Voest-Alpine Industrieanlagenbau Gmbh A continuously casting chill mould for rectangular slabs - which reduces construction costs, maintenance and mould change times, without sacrificing rigidity
AT401028B (en) * 1994-07-07 1996-05-28 Voest Alpine Ind Anlagen Continuous casting mould
IT1267209B1 (en) * 1993-12-20 1997-01-28 Voest Alpine Ind Anlagen CONTINUOUS CASTING SHELL.
US6857464B2 (en) 2002-09-19 2005-02-22 Hatch Associates Ltd. Adjustable casting mold
CN118122990B (en) * 2024-05-10 2024-07-16 山西阳煤千军汽车部件有限责任公司 Intelligent die casting die of improvement formula cylinder head

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DE4444976C2 (en) * 1993-12-20 1999-03-18 Voest Alpine Ind Anlagen Continuous casting plate mold

Also Published As

Publication number Publication date
EP0233796B1 (en) 1989-04-12
ATE42052T1 (en) 1989-04-15
FR2593098B1 (en) 1988-04-01
US4706733A (en) 1987-11-17
FR2593098A1 (en) 1987-07-24
DE3760096D1 (en) 1989-05-18

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