EP0401145A1 - Device for continuous casting of molten metal between two cylinders - Google Patents

Device for continuous casting of molten metal between two cylinders Download PDF

Info

Publication number
EP0401145A1
EP0401145A1 EP90470030A EP90470030A EP0401145A1 EP 0401145 A1 EP0401145 A1 EP 0401145A1 EP 90470030 A EP90470030 A EP 90470030A EP 90470030 A EP90470030 A EP 90470030A EP 0401145 A1 EP0401145 A1 EP 0401145A1
Authority
EP
European Patent Office
Prior art keywords
cylinders
plates
cylinder
rolling members
plate
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
EP90470030A
Other languages
German (de)
French (fr)
Other versions
EP0401145B1 (en
Inventor
Philippe Blin
Georges Weber
Jacques Barbe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
USINOR SA
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
USINOR Sacilor SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institut de Recherches de la Siderurgie Francaise IRSID, USINOR Sacilor SA filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to AT90470030T priority Critical patent/ATE91245T1/en
Publication of EP0401145A1 publication Critical patent/EP0401145A1/en
Application granted granted Critical
Publication of EP0401145B1 publication Critical patent/EP0401145B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams

Definitions

  • the subject of the present invention is a device for continuous casting of liquid metal, comprising two horizontal cylinders, parallel and separated by a predetermined distance, delimiting between them a space intended to receive liquid metal poured into a flat product under the cylinders, as well as closure plates for the ends of this space, arranged against the front faces of the cylinders, or against a front face of a cylinder and part of the cylindrical surface of the other cylinder if the two cylinders are offset axially.
  • the invention therefore aims to provide a device in which these drawbacks are eliminated.
  • the casting device comprises rolling members interposed between said closure plates and said faces of the cylinders to keep the above-mentioned clearance set constant. initially, during casting.
  • said rolling members are incorporated into the plates and held in abutment against the surfaces facing the cylinders by elastic elements.
  • These rolling members can be balls or rollers whose axes are arranged along radii of the cylinders, and which are dimensioned so that the distance between the surfaces of the plates and the surfaces facing the cylinders is equal to the desired game.
  • the plates and their balls or rollers are held against the surfaces of the cylinders by springs bearing on support frames fitted to each plate.
  • This play holding device does not require any monitoring or adjustment during casting as a function of variations in the size of the cylinders due to expansion, thanks to the fact that the play is self-maintained by the support springs.
  • the device shown in Figs 1 to 3 is intended for the continuous casting of a bath 1 of liquid metal, for example steel between two cylinders 2a, 2b horizontal, parallel and separated by a predetermined distance d , corresponding to l thickness of the solidified flat product 3 which is extracted under the cylinders 2 during casting.
  • This device also includes two end plates 4 for closing the ends of the casting space between the cylinders 2.
  • the plates 4 are arranged with a determined clearance against the face faces 5, 6 of the cylinders 2, which in this example are not axially offset.
  • the device is equipped with means for keeping the clearance (e) between the plates 4 and the end faces 5, 6 constant during casting, by means of rolling members incorporated in the plates 4.
  • rolling members are, at least two rollers 7 per cylinder 2a and 2b, partially housed in the plate 4 and mounted in journals on axes 8 directed along radii r of the cylinders 2a, 2b.
  • the rollers 7 are positioned in the vicinity of the periphery of the cylinders 2a, 2b, so as to bear on annular hoops 11, 12, for example made of copper.
  • These frets respectively equip the cylinders 2a, 2b and are the parts of these undergoing the main expansion.
  • the rollers 7 are dimensioned and positioned in the face of the plates 4 facing the cylinders 2a, 2b projecting from this face so that the distance e between the surfaces of the plates 4 and the respective front faces 5, 6 of the cylinders is equal to the desired clearance, for example 0.1mm for a casting of liquid steel.
  • Elastic means comprising springs 10 bearing on a support frame 20 apply to the plates 4 thrusts of appropriate strength, sufficient to prevent the plates 4 from falling back under the effect of the pressure exerted on them by the metal contained in casting space. These thrusts are directed towards the front faces 5, 6 of the cylinders, in order to keep the rolling members 7 in abutment against their respective faces 5, 6.
  • rollers 7 can be replaced by balls or else each plate 4 can be provided with balls for pressing on one cylinder and rollers for pressing on the other cylinder.
  • the clearance e will be kept constant, at the value making it possible both to prevent any infiltration of liquid metal between the plates 4 and the end faces 5, 6 of the cylinders, and significant wear on the surface of the plates 4.
  • the casting device schematically shown in Figs. 4 and 5 has two cylinders 13, 14 parallel and spaced apart by a distance d as in the previous case, but these cylinders are offset here axially by a distance x , which therefore separates their respective end faces 13a, 14a.
  • each end closure plate 15 of the casting space between the two cylinders 13, 14 has a concave edge 15a matching the convex outline of the cylindrical side 13b of the corresponding cylinder 13, while its flat face partially covers the face associated frontal 14a of the cylinder 14.
  • Each plate 15 is therefore provided with rolling members placed in abutment on the end face 14a and on the cylindrical side 13b, for example as shown rollers 7 for the face 14a and balls 9 for side 13b.
  • the elastic means are additionally arranged to hold the plates 15 against the faces 14a and against the cylindrical surface 13b, namely a first spring 16 directed substantially in the plane of each plate 15 and exerting on the edge thereof opposite the bodies of bearing 9 a force tending to apply these on the cylindrical side 13b, and on the other hand a second spring 17 arranged perpendicular to the previous one and to the plate 15, the force of which keeps the rolling members 7 in abutment against the face 14a.
  • the springs 16 and 17 are carried by a support frame, not shown.
  • Each plate 15 consists of a chassis 18 with a U-section, provided with a closure part 19 of the corresponding end of the pouring space containing the liquid metal 1.
  • the frame 18 is open facing the lateral surface of the cylinder 14, and contains at at least two rollers 21 with an axis 22 journalling in bearings 23 carried by a casing 24 fixed to adjustment means 25, themselves fixed to the branches of the chassis 18. These adjustment means make it possible to adjust the initial clearance e1 between the part closure 19 and the hoop 14c of the cylinder 14.
  • Each closure plate 15 is additionally equipped with at least two rollers 26 journalling in yokes 27 fixed to each branch of the chassis 18 facing the corresponding end face 13a, 14a, of the respective cylinders 13 and 14.
  • the rollers 26 have their axes arranged along radii of cylinders 13 and 14 and are dimensioned, as well as the yokes 27, so as to maintain between the closing pieces 19 and the hoops 13c, 14c of the cylinders 13, 14, the desired clearance e .
  • This clearance can also be adjusted initially, for example by interposing shims of adjusted thickness between the chassis 18 and the closure part 19.
  • the cylinders 13, 14 incorporate fluid-cooling channels 28, for example water.
  • rollers 7 and 26 can be replaced by balls such as 9, and conversely the balls 9 can be replaced by rollers. All other rolling elements such as needles can also be used.
  • raceways of the running gear must be as much as possible directly linked to the frets of the cylinders and follow the deformations thereof.
  • these raceways may be formed either, as shown in Figure 6, by inserts, corresponding to the end faces 13a, 14a, moving with the edges of the hoop (13c, 14c), or by a coating of these edges specially provided so as to avoid wear of the raceway.
  • the choice of solution will depend on the nature, and in particular the hardness, of the alloy constituting the hoop. In all cases, an effort will be made to place the rolling members as close as possible to the outer surface of the hoops, in order to follow the deformations of these as closely as possible.

Abstract

This device comprises two parallel horizontal cylinders (2a, 2b) defining between them an intermediate volume for the molten metal (1) to be cast, the ends of which are closed by plates (4) with a specified clearance between them and the surfaces of the cylinders against which they are continuously held; in order to maintain the constant clearance during the successive castings, the plates (4) incorporate rolling bearing components (7) which bear on the terminal faces of the cylinders (2a, 2b) and which project from the surfaces of the plates (4) by a distance equal to the clearance (e) provided; the plates (4) are continuously held against the cylinders by means of springs (10) bearing on a frame (20). The rolling bearing components (7) (rollers and/or balls) prevent any wear of the plates and their clearance is automatically maintained by means of the springs (10) during casting. <IMAGE>

Description

La présente invention a pour objet un dispo­sitif de coulée continue de métal liquide, comportant deux cylindres horizontaux, parallèles et séparés par une distance prédéterminée, délimitant entre eux un espace destiné à recevoir du métal liquide coulé en produit plat sous les cylindres, ainsi que des plaques de fermeture des extrémités de cet espace, disposées contre les faces frontales des cylindres, ou contre une face frontale d'un cylindre et une partie de la surface cylindrique de l'autre cylindre si les deux cylindres sont décalés axialement.The subject of the present invention is a device for continuous casting of liquid metal, comprising two horizontal cylinders, parallel and separated by a predetermined distance, delimiting between them a space intended to receive liquid metal poured into a flat product under the cylinders, as well as closure plates for the ends of this space, arranged against the front faces of the cylinders, or against a front face of a cylinder and part of the cylindrical surface of the other cylinder if the two cylinders are offset axially.

Ces plaques ou parois latérales de fermeture de l'espace de coulée, appelées communément "petites faces", doivent être maintenues pour la coulée d'acier liquide, avec un jeu de l'ordre de 0,1mm pour éviter les infiltrations. Or, ce jeu varie durant la coulée en fonction du degré de dilatation des cylindres, et en particulier de frettes annulaires en cuivre cons­tituant leur périphérie. De ce fait, si le jeu à froid est trop grand pour prendre en compte le phénomène de dilatation lors de la mise en régime thermique, il risque de se produire des infiltrations de métal li­quide entre les plaques de fermeture et les cylindres. Inversement, un jeu faible réglé à froid provoque une usure rapide des plaques et un couple de frottement qui nuit à l'entraînement des cylindres de sorte que les plaques doivent alors être fréquemment remplacées.These plates or side walls closing the casting space, commonly called "small faces", must be maintained for the casting of liquid steel, with a clearance of the order of 0.1 mm to avoid infiltration. However, this clearance varies during casting as a function of the degree of expansion of the cylinders, and in particular of annular copper hoops constituting their periphery. Therefore, if the cold clearance is too large to take into account the phenomenon of expansion during the thermal regime, there is a risk of infiltration of liquid metal between the closure plates and the cylinders. Conversely, a low clearance adjusted when cold causes rapid wear of the plates and a friction torque which affects the drive of the cylinders so that the plates must then be frequently replaced.

L'invention a donc pour but de réaliser un dispositif dans lequel ces inconvénients sont éli­minés.The invention therefore aims to provide a device in which these drawbacks are eliminated.

Suivant l'invention, le dispositif de coulée comprend des organes de roulement interposés entre lesdites plaques de fermeture et les dites faces des cylindres pour maintenir constant le jeu précité réglé initialement,durant la coulée.According to the invention, the casting device comprises rolling members interposed between said closure plates and said faces of the cylinders to keep the above-mentioned clearance set constant. initially, during casting.

Suivant un mode de réalisation, lesdits organes de roulement sont incorporés aux plaques et maintenus en appui contre les surfaces en vis-à-vis des cylindres par des éléments élastiques.According to one embodiment, said rolling members are incorporated into the plates and held in abutment against the surfaces facing the cylinders by elastic elements.

Ces organes de roulement peuvent être des billes ou des galets dont les axes sont disposés suivant des rayons des cylindres, et qui sont dimen­sionnés de telle sorte que la distance entre les surfaces des plaques et les surfaces en vis-à-vis des cylindres soit égale au jeu désiré.These rolling members can be balls or rollers whose axes are arranged along radii of the cylinders, and which are dimensioned so that the distance between the surfaces of the plates and the surfaces facing the cylinders is equal to the desired game.

Les plaques et leurs billes ou galets de roulement sont maintenus contre les surfaces des cy­lindres par des ressorts prenant appui sur des châssis de support équipant chaque plaque.The plates and their balls or rollers are held against the surfaces of the cylinders by springs bearing on support frames fitted to each plate.

Ce dispositif de maintien de jeu ne néces­site ni surveillance ni ajustement en cours de coulée en fonction des variations de dimension des cylindres dues à la dilatation, grâce au fait que le jeu est auto-entretenu par les ressorts d'appui.This play holding device does not require any monitoring or adjustment during casting as a function of variations in the size of the cylinders due to expansion, thanks to the fact that the play is self-maintained by the support springs.

L'invention sera maintenant décrite en détail en référence à deux formes de réalisation illustrées aux dessins annexés, données à titre d'exemples non limitatifs.

  • La figure 1 est une vue en perspective sim­plifée d'un dispositif de coulée continue de métal liquide du type visé par l'invention.
  • La figure 2 est une vue de dessus avec arra­chement de deux des extrémités des cylindres du dispo­sitif de la Fig.1, équipées d'une plaque dotée d'or­ganes de roulement conformément à l'invention.
  • La figure 3 est une vue en élévation en bout du dispositif de la Fig.2.
  • La figure 4 est une vue de dessus simplifiée d'une seconde forme de réalisation du dispositif de coulée selon l'invention.
  • La figure 5 est une vue en élévation en bout suivant la flèche K de la Fig.4
  • La figure 6 est une vue de dessus d'une forme de réalisation industrielle du dispositif de coulée des Fig.4 et 5.
The invention will now be described in detail with reference to two embodiments illustrated in the accompanying drawings, given by way of non-limiting examples.
  • Figure 1 is a simplified perspective view of a continuous casting device of liquid metal of the type targeted by the invention.
  • Figure 2 is a top view with cutaway of two ends of the cylinders of the device of Fig.1, equipped with a plate with rolling members according to the invention.
  • Figure 3 is an end elevational view of the device of Fig.2.
  • Figure 4 is a simplified top view of a second embodiment of the casting device according to the invention.
  • Figure 5 is an end elevational view along arrow K of Fig.4
  • FIG. 6 is a top view of an industrial embodiment of the casting device of FIGS. 4 and 5.

Le dispositif représenté aux Fig.1 à 3 est destiné à la coulée continue d'un bain 1 de métal liquide, par exemple de l'acier entre deux cylindres 2a, 2b horizontaux, parallèles et séparés par une distance prédéterminée d, correspondant à l'épaisseur du produit plat 3 solidifié qui est extrait sous les cylindres 2 durant la coulée. Ce dispositif comporte également deux plaques terminales 4 de fermeture des extrémités de l'espace de coulée entre les cylindres 2.The device shown in Figs 1 to 3 is intended for the continuous casting of a bath 1 of liquid metal, for example steel between two cylinders 2a, 2b horizontal, parallel and separated by a predetermined distance d , corresponding to l thickness of the solidified flat product 3 which is extracted under the cylinders 2 during casting. This device also includes two end plates 4 for closing the ends of the casting space between the cylinders 2.

Les plaques 4 sont disposées avec un jeu déterminé contre les faces fontrales 5, 6 des cy­lindres 2, qui dans cet exemple ne sont pas décalés axialement.The plates 4 are arranged with a determined clearance against the face faces 5, 6 of the cylinders 2, which in this example are not axially offset.

Le dispositif est équipé de moyens pour maintenir constant, durant la coulée, le jeu (e) entre les plaques 4 et les faces d'extrémité 5, 6, grâce à des organes de roulement incorporés aux plaques 4. Dans l'exemple représenté, ces organes de roulement sont, des galets 7 au minimum au nombre de deux par cylindre 2a et 2b, partiellement logés dans la plaque 4 et montés à tourillonnement sur des axes 8 dirigés suivant des rayons r des cylindres 2a, 2b. De préfé­rence les galets 7 sont positionnés au voisinage de la périphérie des cylindres 2a, 2b, de manière à prendre appui sur des frettes annulaires 11, 12, par exemple en cuivre. Ces frettes équipent respectivement les cylindres 2a, 2b et sont les parties de ceux-ci subis­sant la principale dilatation.The device is equipped with means for keeping the clearance (e) between the plates 4 and the end faces 5, 6 constant during casting, by means of rolling members incorporated in the plates 4. In the example shown, these rolling members are, at least two rollers 7 per cylinder 2a and 2b, partially housed in the plate 4 and mounted in journals on axes 8 directed along radii r of the cylinders 2a, 2b. Preferably the rollers 7 are positioned in the vicinity of the periphery of the cylinders 2a, 2b, so as to bear on annular hoops 11, 12, for example made of copper. These frets respectively equip the cylinders 2a, 2b and are the parts of these undergoing the main expansion.

Les galets 7 sont dimensionnés et position­nés dans la face des plaques 4 tournée vers les cy­lindres 2a, 2b en débord de cette face de manière que la distance e entre les surfaces des plaques 4 et des faces frontales 5, 6 respectives des cylindres soit égale au jeu désiré, par exemple 0,1mm pour une coulée d'acier liquide.The rollers 7 are dimensioned and positioned in the face of the plates 4 facing the cylinders 2a, 2b projecting from this face so that the distance e between the surfaces of the plates 4 and the respective front faces 5, 6 of the cylinders is equal to the desired clearance, for example 0.1mm for a casting of liquid steel.

Des moyens élastiques comprenant des res­sorts 10 prenant appui sur un châssis support 20 appliquent sur les plaques 4 des poussées de force appropriée, suffisante pour éviter le recul des pla­ques 4 sous l'effet de la pression exercée sur celles-­ci par le métal contenu dans l'espace de coulée. Ces poussées sont dirigées vers les faces frontales 5, 6 des cylindres, pour maintenir les organes de roulement 7, en appui contre leur face respective 5, 6.Elastic means comprising springs 10 bearing on a support frame 20 apply to the plates 4 thrusts of appropriate strength, sufficient to prevent the plates 4 from falling back under the effect of the pressure exerted on them by the metal contained in casting space. These thrusts are directed towards the front faces 5, 6 of the cylinders, in order to keep the rolling members 7 in abutment against their respective faces 5, 6.

En variante, les galets 7 peuvent être remplacés par des billes ou bien chaque plaque 4 peut être munie de billes pour l'appui sur un cylindre et de galets pour l'appui sur l'autre cylindre.As a variant, the rollers 7 can be replaced by balls or else each plate 4 can be provided with balls for pressing on one cylinder and rollers for pressing on the other cylinder.

Ainsi, quelle que soit la variation de lar­geur des frettes 11, 12 provoquée par leur dilatation au cours de la coulée du métal liquide 1, le jeu e sera maintenu constant, à la valeur permettant à la fois d'empêcher toute infiltration de métal liquide entre les plaques 4 et les faces terminales 5, 6 des cylindres, et une usure sensible de la surface des plaques 4.Thus, whatever the variation in width of the hoops 11, 12 caused by their expansion during the casting of the liquid metal 1, the clearance e will be kept constant, at the value making it possible both to prevent any infiltration of liquid metal between the plates 4 and the end faces 5, 6 of the cylinders, and significant wear on the surface of the plates 4.

Le dispositif de coulée schématiquement re­présenté aux Fig.4 et 5 comporte deux cylindres 13, 14 parallèles et écartés d'une distance d comme dans le cas précédent, mais ces cylindres sont ici décalés axialement d'une distance x, qui sépare donc leurs faces terminales respectives 13a, 14a.The casting device schematically shown in Figs. 4 and 5 has two cylinders 13, 14 parallel and spaced apart by a distance d as in the previous case, but these cylinders are offset here axially by a distance x , which therefore separates their respective end faces 13a, 14a.

Corrélativement, chaque plaque 15 de ferme­ture d'extrémité de l'espace de coulée entre les deux cylindres 13, 14 présente un bord concave 15a épousant le contour convexe du côté cylindrique 13b du cylindre correspondant 13, tandis que sa face plane recouvre partiellement la face frontale associée 14a du cylin­dre 14. Chaque plaque 15 est donc dotée d'organes de roulement placés en appui sur la face d'extrémité 14a et sur le côté cylindrique 13b, par exemple comme représenté des galets 7 pour la face 14a et des billes 9 pour le côté 13b.Correlatively, each end closure plate 15 of the casting space between the two cylinders 13, 14 has a concave edge 15a matching the convex outline of the cylindrical side 13b of the corresponding cylinder 13, while its flat face partially covers the face associated frontal 14a of the cylinder 14. Each plate 15 is therefore provided with rolling members placed in abutment on the end face 14a and on the cylindrical side 13b, for example as shown rollers 7 for the face 14a and balls 9 for side 13b.

Les moyens élastiques sont complémentaire­ment agencés pour maintenir les plaques 15 contre les faces 14a et contre la surface cylindrique 13b, à savoir un premier ressort 16 dirigé sensiblement dans le plan de chaque plaque 15 et exerçant sur le chant de celle-ci opposé aux organes de roulement 9 une force tendant à appliquer ces derniers sur le côté cylindrique 13b, et d'autre part un second ressort 17 disposé perpendiculairement au précédent et à la pla­que 15, dont la force maintient les organes de roule­ment 7 en appui contre la face 14a.The elastic means are additionally arranged to hold the plates 15 against the faces 14a and against the cylindrical surface 13b, namely a first spring 16 directed substantially in the plane of each plate 15 and exerting on the edge thereof opposite the bodies of bearing 9 a force tending to apply these on the cylindrical side 13b, and on the other hand a second spring 17 arranged perpendicular to the previous one and to the plate 15, the force of which keeps the rolling members 7 in abutment against the face 14a.

Les ressorts 16 et 17 sont portés par un châssis de support non représenté.The springs 16 and 17 are carried by a support frame, not shown.

Le mode de réalisation industrielle du dis­positif de coulée représenté à la Fig.6 est conforme à celui schématiquement illustré aux Fig.4 et 5. Chaque plaque 15 est constituée d'un châssis 18 à section en U, munie d une pièce 19 de fermeture de l'extrémité correspondante de l'espace de coulée contenant le métal liquide 1. Le châssis 18 est ouvert en vis-à-vis de la surface latérale du cylindre 14, et contient au moins deux galets 21 d'axe 22 tourillonnant dans des paliers 23 portés par un carter 24 fixé à des moyens de réglage 25, eux-mêmes fixés aux branches du châssis 18. Ces moyens de réglage permettent de régler le jeu initial e1 entre la pièce de fermeture 19 et la frette 14c du cylindre 14.The industrial embodiment of the casting device shown in Fig. 6 conforms to that schematically illustrated in Figs. 4 and 5. Each plate 15 consists of a chassis 18 with a U-section, provided with a closure part 19 of the corresponding end of the pouring space containing the liquid metal 1. The frame 18 is open facing the lateral surface of the cylinder 14, and contains at at least two rollers 21 with an axis 22 journalling in bearings 23 carried by a casing 24 fixed to adjustment means 25, themselves fixed to the branches of the chassis 18. These adjustment means make it possible to adjust the initial clearance e1 between the part closure 19 and the hoop 14c of the cylinder 14.

Chaque plaque de fermeture 15 est complé­mentairement équipée d'au moins deux galets 26 touril­lonnant dans des chapes 27 fixées à chaque branche du châssis 18 tournée vers la face terminale corres­pondante 13a, 14a, des cylindres respectifs 13 et 14. Les galets 26 ont leurs axes disposés suivant des rayons des cylindres 13 et 14 et sont dimensionnés, ainsi que les chapes 27, de manière à maintenir entre les pièces de fermeture 19 et les frettes 13c, 14c des cylindres 13, 14, le jeu désiré e. Ce jeu peut par ailleurs être réglé initialement par exemple en inter­posant des cales d'épaisseur ajustée entre le châssis 18 et la pièce de fermeture 19.Each closure plate 15 is additionally equipped with at least two rollers 26 journalling in yokes 27 fixed to each branch of the chassis 18 facing the corresponding end face 13a, 14a, of the respective cylinders 13 and 14. The rollers 26 have their axes arranged along radii of cylinders 13 and 14 and are dimensioned, as well as the yokes 27, so as to maintain between the closing pieces 19 and the hoops 13c, 14c of the cylinders 13, 14, the desired clearance e . This clearance can also be adjusted initially, for example by interposing shims of adjusted thickness between the chassis 18 and the closure part 19.

De manière connue en soi, les cylindres 13, 14 incorporent des canaux 28 de refroidissement par fluide, par exemple de l'eau.In a manner known per se, the cylinders 13, 14 incorporate fluid-cooling channels 28, for example water.

Les galets 7 et 26 peuvent être remplacés par des billes telles que 9, et inversement les billes 9 peuvent être remplacées par des galets. Tous autres éléments de roulement tels que des aiguilles peuvent également être utilisés.The rollers 7 and 26 can be replaced by balls such as 9, and conversely the balls 9 can be replaced by rollers. All other rolling elements such as needles can also be used.

Il est clair que, le but de l'invention étant de maintenir les jeux e et e1 constants, les chemins de roulement des organes de roulement devront être autant que possible directement liés aux frettes des cylindres et suivre les déformations de celles-ci. A cette fin, ces chemins de roulements pourront être constitués soit, comme représenté à la figure 6, par des pièces rapportées, correspondant aux faces ter­minales 13a, 14a, se déplaçant avec les bords de la frette (13c, 14c), soit par un revêtement de ces bords spécialement prévu de manière à éviter l'usure du chemin de roulement. Le choix de la solution dépendra de la nature, et notamment de la dureté, de l'alliage constitutif de la frette. On s'efforcera dans tous les cas de placer les organes de roulement le plus près possible de la surface extérieure des frettes, afin de suivre le plus fidèlement possible les déformations de celles-ci.It is clear that, the object of the invention being to keep the clearances e and e1 constant, the raceways of the running gear must be as much as possible directly linked to the frets of the cylinders and follow the deformations thereof. To this end, these raceways may be formed either, as shown in Figure 6, by inserts, corresponding to the end faces 13a, 14a, moving with the edges of the hoop (13c, 14c), or by a coating of these edges specially provided so as to avoid wear of the raceway. The choice of solution will depend on the nature, and in particular the hardness, of the alloy constituting the hoop. In all cases, an effort will be made to place the rolling members as close as possible to the outer surface of the hoops, in order to follow the deformations of these as closely as possible.

Claims (5)

1. Dispositif de coulée continue de métal liquide (1) comportant deux cylindres horizontaux parallèles (2a, 2b; 13, 14) et séparés par une dis­tance prédéterminée (d) délimitant entre eux un espace destiné à recevoir du métal liquide coulé en produit plat sous les cylindres, ainsi que des plaques (4, 15) de fermeture des extrémités de cet espace, disposées contre les faces frontales des cylindres, ou contre une face frontale d'un cylindre (14) et une partie de la surface cylindrique de l'autre cylindre (13), si les deux cylindres sont décalés axialement, caracté­risé en ce qu'il comprend des organes de roulement in­terposés entre les dites plaques de fermeture et les dites faces des cylindres pour maintenir entre celles-­ci un jeu déterminé constant durant la coulée.1. Continuous liquid metal casting device (1) comprising two parallel horizontal cylinders (2a, 2b; 13, 14) and separated by a predetermined distance (d) delimiting between them a space intended to receive liquid metal cast in flat product under the cylinders, as well as plates (4, 15) for closing the ends of this space, disposed against the front faces of the cylinders, or against a front face of a cylinder (14) and part of the cylindrical surface of the 'other cylinder (13), if the two cylinders are axially offset, characterized in that it comprises rolling members interposed between said closure plates and said faces of the cylinders to maintain between them a determined constant play during casting. 2. Dispositif selon la revendication 1, caractérisé en ce que lesdits organes de roulement (7, 9) sont incorporés aux plaques de fermeture (4, 15) et maintenus en appui contre les surfaces en vis- à-vis des cylindres (2a, 2b; 13, 14) par des éléments élas­tiques (10; 16, 17).2. Device according to claim 1, characterized in that said rolling members (7, 9) are incorporated in the closure plates (4, 15) and held in abutment against the surfaces facing the cylinders (2a, 2b; 13, 14) by elastic elements (10; 16, 17). 3. Dispositif selon la revendication 2, caractérisé en ce que les organes de roulement sont des billes (9) et/ou des galets (7) dont les axes sont disposés suivant des rayons (r) des cylindres, et maintenus en position par rapport aux plaques (4, 15) de telle sorte que la distance entre les surfaces des plaques (4, 15) et les surfaces en vis-à-vis des cy­lindres (2a, 2b; 13, 14) soit égale au jeu désiré (e).3. Device according to claim 2, characterized in that the rolling members are balls (9) and / or rollers (7) whose axes are arranged along radii (r) of the cylinders, and held in position relative to to the plates (4, 15) so that the distance between the surfaces of the plates (4, 15) and the surfaces facing the cylinders (2a, 2b; 13, 14) is equal to the desired clearance (e ). 4. Dispositif selon la revendication 1, dans lequel les cylindres (13, 14) sont décalés axialement et chaque plaque de fermeture (15) présente un bord concave (15a) épousant le contour convexe (13b) de la paroi cylindrique d'un premier cylindre correspondant (13), tandis que sa face plane recouvre partiellement la face frontale associée (14a) du second cylindre (14), caractérisé en ce que chaque plaque (15) est munie d'organes de roulement (7, 9) portant, d'une part sur la face frontale (14a) dudit second cylindre (14), et d'autre part sur la surface cylindrique (13b) du premier cylindre (13), des moyens élastiques (16, 17) étant agencés pour maintenir la plaque (15) contre la face frontale (14a) et contre ladite surface cy­lindrique.4. Device according to claim 1, in which the cylinders (13, 14) are axially offset and each closure plate (15) has a concave edge (15a) matching the convex outline (13b) of the cylindrical wall of a corresponding first cylinder (13), while its planar face partially covers the associated front face (14a) of the second cylinder (14), characterized in that each plate (15) is provided with rolling members ( 7, 9) bearing, on the one hand on the front face (14a) of said second cylinder (14), and on the other hand on the cylindrical surface (13b) of the first cylinder (13), elastic means (16, 17 ) being arranged to hold the plate (15) against the front face (14a) and against said cylindrical surface. 5. Dispositif selon la revendication 4, caractérisé en ce que les organes de roulement sont des galets (7, 26) ou des billes (9) incorporés au bord concave (15a) de la plaque (15), et des galets (7, 26) ou des billes (9) incorporés à la plaque (15) en vis-à-vis de la face plane frontale (14a) du second cylindre (14).5. Device according to claim 4, characterized in that the rolling members are rollers (7, 26) or balls (9) incorporated into the concave edge (15a) of the plate (15), and rollers (7, 26) or balls (9) incorporated in the plate (15) facing the flat front face (14a) of the second cylinder (14).
EP90470030A 1989-05-29 1990-05-21 Device for continuous casting of molten metal between two cylinders Expired - Lifetime EP0401145B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90470030T ATE91245T1 (en) 1989-05-29 1990-05-21 DEVICE FOR CONTINUOUS CASTING OF LIQUID METAL BETWEEN TWO CYLINDERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8907011 1989-05-29
FR8907011A FR2647376B1 (en) 1989-05-29 1989-05-29 DEVICE FOR CONTINUOUS CASTING OF LIQUID METAL BETWEEN TWO CYLINDERS

Publications (2)

Publication Number Publication Date
EP0401145A1 true EP0401145A1 (en) 1990-12-05
EP0401145B1 EP0401145B1 (en) 1993-07-07

Family

ID=9382098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90470030A Expired - Lifetime EP0401145B1 (en) 1989-05-29 1990-05-21 Device for continuous casting of molten metal between two cylinders

Country Status (13)

Country Link
US (1) US5010948A (en)
EP (1) EP0401145B1 (en)
JP (1) JP2992055B2 (en)
KR (1) KR0181735B1 (en)
AT (1) ATE91245T1 (en)
AU (1) AU625185B2 (en)
BR (1) BR9002492A (en)
CA (1) CA2017637A1 (en)
DD (1) DD294644A5 (en)
DE (1) DE69002129T2 (en)
FR (1) FR2647376B1 (en)
RU (1) RU2013183C1 (en)
ZA (1) ZA904063B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0782894A1 (en) * 1996-01-05 1997-07-09 Ishikawajima-Harima Heavy Industries Co., Ltd. Twin roll continuous caster

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652022B1 (en) * 1989-06-26 1994-04-08 Irsid CASSETTE FOR FORMING A FRONTAL CLOSING FACE OF A CONTINUOUS CASTING DEVICE OF LIQUID METAL.
FR2727337B1 (en) * 1994-11-30 1996-12-27 Usinor Sacilor SUPPORT DEVICE FOR A SIDE FACE OF A CONTINUOUS CASTING PLANT OF METAL BANDS BETWEEN CYLINDERS
JP5837758B2 (en) 2011-04-27 2015-12-24 キャストリップ・リミテッド・ライアビリティ・カンパニー Twin roll casting apparatus and control method thereof
US10046384B2 (en) 2015-09-30 2018-08-14 Nucor Corporation Side dam with pocket
CN112676542A (en) * 2020-12-14 2021-04-20 浙江英洛华磁业有限公司 Automatic adjust middle package device of interval

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE675811A (en) * 1965-02-02 1966-05-16
US4723590A (en) * 1985-08-05 1988-02-09 Hitachi, Ltd. Continuous casting apparatus of twin-drum type
FR2613646A1 (en) * 1987-04-09 1988-10-14 Siderurgie Fse Inst Rech Lateral closing-off device for an ingot mould for continuous casting between rolls

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950955A (en) * 1982-09-14 1984-03-24 Mitsubishi Heavy Ind Ltd Drum type continuous casting device
JPS60166149A (en) * 1984-02-09 1985-08-29 Hitachi Ltd Continuous casting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE675811A (en) * 1965-02-02 1966-05-16
US4723590A (en) * 1985-08-05 1988-02-09 Hitachi, Ltd. Continuous casting apparatus of twin-drum type
FR2613646A1 (en) * 1987-04-09 1988-10-14 Siderurgie Fse Inst Rech Lateral closing-off device for an ingot mould for continuous casting between rolls

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 6, no. 187 (M-158)[1065], 25 septembre 1982, page 91 M 158; & JP-A-57 94 456 (KAWASAKI SEITETSU K.K.) 11-06-1982 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0782894A1 (en) * 1996-01-05 1997-07-09 Ishikawajima-Harima Heavy Industries Co., Ltd. Twin roll continuous caster

Also Published As

Publication number Publication date
FR2647376B1 (en) 1991-09-13
CA2017637A1 (en) 1990-11-29
EP0401145B1 (en) 1993-07-07
ZA904063B (en) 1992-01-29
DE69002129D1 (en) 1993-08-12
DD294644A5 (en) 1991-10-10
FR2647376A1 (en) 1990-11-30
JPH0313253A (en) 1991-01-22
DE69002129T2 (en) 1993-12-02
RU2013183C1 (en) 1994-05-30
US5010948A (en) 1991-04-30
AU625185B2 (en) 1992-07-02
AU5605190A (en) 1990-11-29
KR900017689A (en) 1990-12-19
BR9002492A (en) 1991-11-12
JP2992055B2 (en) 1999-12-20
KR0181735B1 (en) 1999-04-01
ATE91245T1 (en) 1993-07-15

Similar Documents

Publication Publication Date Title
EP0401145B1 (en) Device for continuous casting of molten metal between two cylinders
US4351383A (en) Bearings for continuous casting roller aprons
EP0714715B1 (en) Means for supporting a side wall for a continuous casting plant for casting strips between rolls
EP0756910A3 (en) Continuous casting device
EP1137502B1 (en) Device for pressing a side wall in an installation for continuous casting of metal strips between two drums against the planar surfaces of the drums
EP0011537A1 (en) Improvements in continuous-casting moulds
BE1004162A3 (en) Device for mounting a clamp coupling rod drill hole casting furnace tank to drilling machine.
EP0406142A1 (en) Cassette forming the closing front surface of a continuous casting machine
FR2695580A1 (en) Continuous casting device between cylinders of thin metallic products.
CA2384034A1 (en) Twin-drum continuous casting apparatus and method
FR2707275A1 (en) Tilting bearing intended to bear one end of a winding bar, with a view to winding up or unwinding layers of materials.
ZA909333B (en) Device for the continuous casting of thin metal strips between two rolls
CA1237268A (en) Holding device for molded part issuing from a continuous molding machine, and means of control for said device
EP0444164A1 (en) Closing device for the taphole of a liquid metal container
WO1997014645A3 (en) Running wheel block
EP2046530A1 (en) Housing for a roller-burnishing tool having an adjustable width
CA1191322A (en) Bearings for continuous casting roller aprons
EP0222677A1 (en) Burner support plate for a cast iron heater
CH667824A5 (en) Casting mould with ingot cooling system - comprising replaceable water spray nozzles
Bessey An extrusion process and an improved extrusion press
FR2557821A1 (en) COMPENSATION DEVICE FOR THE WEAR OF A MOLD
JPH0571447U (en) Easy to remove rolling bearing
LU87299A1 (en) ROLL FOR TRANSPORTING A HIGH TEMPERATURE METAL PRODUCT
CA2587148A1 (en) Twin-drum continuous casting apparatus and method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910510

17Q First examination report despatched

Effective date: 19920807

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: USINOR SACILOR

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19930707

Ref country code: SE

Effective date: 19930707

Ref country code: NL

Effective date: 19930707

Ref country code: DK

Effective date: 19930707

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19930707

Ref country code: GB

Effective date: 19930707

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19930707

REF Corresponds to:

Ref document number: 91245

Country of ref document: AT

Date of ref document: 19930715

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69002129

Country of ref document: DE

Date of ref document: 19930812

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19930707

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040429

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20040504

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040505

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040510

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20040608

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050521

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

BERE Be: lapsed

Owner name: *USINOR SACILOR

Effective date: 20050531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: *USINOR SACILOR

Effective date: 20050531