EP0107564B1 - Apparatus for the adjustment of a continuous-casting mould - Google Patents

Apparatus for the adjustment of a continuous-casting mould Download PDF

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Publication number
EP0107564B1
EP0107564B1 EP83401962A EP83401962A EP0107564B1 EP 0107564 B1 EP0107564 B1 EP 0107564B1 EP 83401962 A EP83401962 A EP 83401962A EP 83401962 A EP83401962 A EP 83401962A EP 0107564 B1 EP0107564 B1 EP 0107564B1
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EP
European Patent Office
Prior art keywords
sides
clamping
adjustment
jacks
pressure
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.)
Expired
Application number
EP83401962A
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German (de)
French (fr)
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EP0107564B2 (en
EP0107564A1 (en
Inventor
Raymond Vial
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Clecim SAS
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Clecim SAS
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Application filed by Clecim SAS filed Critical Clecim SAS
Priority to AT83401962T priority Critical patent/ATE19974T1/en
Publication of EP0107564A1 publication Critical patent/EP0107564A1/en
Application granted granted Critical
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Publication of EP0107564B2 publication Critical patent/EP0107564B2/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
    • B22D11/05—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 a device for adjusting, during casting, a mold for the continuous casting of products of rectangular section according to the preamble of claim 1.
  • Adjustable ingot molds which comprise a device, generally with return cylinders, making it possible to move the long sides very slightly apart while the desired adjustment of the short sides is carried out in order to modify the width of the slab. It is indeed necessary to allow the short sides to slide between the long sides, which normally trap them very tightly, so as to avoid any risk of jamming when adjusting the width.
  • the device of the invention does not have this kind of drawbacks. It is of the type comprising clamping devices making it possible to release, during the adjustment of the short sides to the desired width, the pressure exerted on the long sides, its characteristics being defined in the characterizing part of claim 1.
  • the mold has a frame 1 which is fixed a large side 2.
  • the second large side 3, stiffened by a plate 4, is movable.
  • the short sides 7 can move to modify the width of the cast product, thanks to conventional mechanisms 8 which have been shown diagrammatically in the form of screws.
  • two upper clamping devices 9 and two lower clamping devices 10 allow the large side 3 to be loosened and tightened against the short sides 7.
  • the tightening is carried out by elastic stacks 5, while that the loosening is controlled for the upper clamping devices 9 by two hydraulic cylinders 6, and for the lower clamping devices 10 by hydraulic cylinders 11.
  • the hydraulic circuits for controlling the jacks 6 on the one hand, and the jacks 11 on the other hand, are of separate settings. It is thus possible to adjust the loosening of the long side 3 in order to avoid, while moving the short sides 7 during casting, any seizure of these, despite the ferrostatic pressure and phenomena of thermal origin.
  • FIG. 3 shows the hydraulic circuit allowing separate adjustments for the upper cylinders 6 and the lower cylinders 11.
  • the pipes 12 supplying the jacks 6 are combined in a single pipe 13, and the pipes 14 supplying the jacks 11 are joined in a single pipe 15.
  • the pipes 13 and 15 each lead to valves for pressure adjustment, respectively 16 and 17, then they are combined in a single pipe 18 on which the hydraulic pressure is applied or released using a conventional solenoid valve 19.
  • the devices 16 and 17 will be adjusted so that the contact pressure between large and small sides has a given uniform value. We can similarly adjust these pressures so that this contact pressure remains constant for different spacings of the short sides.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Casting Devices For Molds (AREA)

Abstract

1. Device for the adjustment, during casting, of a mould for the continuous casting of products of rectangular cross-section, comprising two small sides (7) inserted between two large sides (2, 3) and means of clamping the large sides, which are capable of being released to adjust the small sides (7) to a desired width, characterized in that the means of clamping the large sides (2, 3) comprise clamping means located respectively at an upper level (9) and a lower level (10), and separate means, adjustable differently, for controlling the relaxation of the pressure exerted respectively by the upper clamping means n9) and by the lower clamping means (10).

Description

La présente invention se rapporte à un dispositif de réglage en cours de coulée d'une lingotière de coulée continue de produits à section rectangulaire selon le préambule de la revendication 1.The present invention relates to a device for adjusting, during casting, a mold for the continuous casting of products of rectangular section according to the preamble of claim 1.

On connaît des lingotières réglables qui comportent un dispositif, généralement à vérins de rappel, permettant d'écarter très légèrement les grands côtés pendant que l'on procède au réglage voulu des petits côtés afin de modifier la largeur de la brame. Il est en effet nécessaire de permettre aux petits côtés de coulisser entre les grands côtés, qui normalement les emprisonnent très étroitement, de manière à éviter tout risque de grippage lors du réglage de largeur.Adjustable ingot molds are known which comprise a device, generally with return cylinders, making it possible to move the long sides very slightly apart while the desired adjustment of the short sides is carried out in order to modify the width of the slab. It is indeed necessary to allow the short sides to slide between the long sides, which normally trap them very tightly, so as to avoid any risk of jamming when adjusting the width.

Un tel mode de fonctionnement ne peut pas convenir lorsque le réglage s'effectue en cours de coulée. Il ne peut pas en effet être toléré de jeu, sinon un jeu très faible, entre' petits et grands côtés, car l'acier liquide serait susceptible de s'y infiltrer.Such an operating mode cannot be suitable when the adjustment is made during casting. There can indeed not be tolerated play, if not a very weak play, between 'small and large sides, because the liquid steel would be likely to infiltrate there.

Lorsque l'on veut, dans l'état actuel de la technique, illustré, par exemple, par le document FR-A-2 365 390, modifier le réglage en cours de coulée, on installe des butées qui permettent d'imposer, lors du règlage de largeur, un jeu très faible entre grands et petits côtés. En réalité, cette solution ne s'avère pas satisfaisante, car le jeu en question est conditionné par les déformations d'origine thermique, de sorte que les risques de grippage existent toujours.When we want, in the current state of the art, illustrated, for example, by document FR-A-2 365 390, to modify the setting during casting, we install stops which make it possible to impose, during width adjustment, very little play between long and short sides. In reality, this solution does not turn out to be satisfactory, since the clearance in question is conditioned by deformations of thermal origin, so that the risks of seizing still exist.

On pourrait penser à régler la pression sur l'ensemble des vérins de rappel de sorte que grands et petits côtés restent en contact, avec une pression de contact suffisamment faible pour que leurs déplacements relatifs soient possibles sans grippage.One could think of adjusting the pressure on all of the return cylinders so that large and small sides remain in contact, with a contact pressure low enough that their relative movements are possible without seizing.

Les essais effectues ont montré que cette solution n'était pas satisfaisante. En effet, dans la lingotière agit la pression ferrostatique, de sorte que la répartition de la pression de contact entre petits et grands côtés s'écarte beaucoup d'une répartition uniforme. Il existe alors un risque de grippage, généralement dans la partie haute des petits côtés.The tests carried out have shown that this solution was not satisfactory. Indeed, in the mold acts the ferrostatic pressure, so that the distribution of the contact pressure between short and long sides deviates a lot from a uniform distribution. There is then a risk of seizure, generally in the upper part of the short sides.

Le dispositif de l'invention ne présente pas ce genre d'inconvénients. Il est du type comportant des dispositifs de serrage permettant de relâcher, pendant le règlage des petits côtés à la largeur voulue, la pression exercée sur les grands côtés, ses caractéristiques étant définies dans la partie caractérisante de la revendication 1.The device of the invention does not have this kind of drawbacks. It is of the type comprising clamping devices making it possible to release, during the adjustment of the short sides to the desired width, the pressure exerted on the long sides, its characteristics being defined in the characterizing part of claim 1.

L'invention sera mieux comprise à l'aide de la description suivante d'un exemple de réalisation, en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en élévation de la lingotière réglable comportant le dispositif de réglage
  • la figure 2 est une coupe selon la direction AA de la figure 1
  • la figure 3 est une représentation schématique du circuit hydraulique de commande des vérins équipant le dispositif de réglage.
The invention will be better understood with the aid of the following description of an exemplary embodiment, with reference to the appended drawings in which:
  • Figure 1 is an elevational view of the adjustable ingot mold comprising the adjustment device
  • Figure 2 is a section along the direction AA of Figure 1
  • Figure 3 is a schematic representation of the hydraulic circuit for controlling the cylinders fitted to the adjustment device.

En se reportant tout d'abord à l'ensemble des figures 1 et 2, la lingotière comporte un cadre 1 auquel est fixé un grand côté 2. Le deuxième grand côté 3, rigidifié par une plaque 4, est mobile. Les petits côtés 7 peuvent se déplacer pour modifier la largeur du produit coulé, grâce à des mécanismes classiques 8 que l'on a schématisé sous forme de vis.Referring first to all of Figures 1 and 2, the mold has a frame 1 which is fixed a large side 2. The second large side 3, stiffened by a plate 4, is movable. The short sides 7 can move to modify the width of the cast product, thanks to conventional mechanisms 8 which have been shown diagrammatically in the form of screws.

Pour permettre cette opération de réglage en cours de coulée, deux dispositifs de serrage supérieur 9 et deux dispositifs de serrage inférieurs 10 permettent de desserrer et resserrer le grand côté 3 contre les petits côtés 7. Le serrage est effectué par des empilements élastiques 5, tandis que le desserrage est commandé pour les dispositifs de serrage supérieurs 9 par deux vérins hydrauliques 6, et pour les dispositifs de serrage inférieurs 10 par des vérins hydrauliques 11.To allow this adjustment operation during casting, two upper clamping devices 9 and two lower clamping devices 10 allow the large side 3 to be loosened and tightened against the short sides 7. The tightening is carried out by elastic stacks 5, while that the loosening is controlled for the upper clamping devices 9 by two hydraulic cylinders 6, and for the lower clamping devices 10 by hydraulic cylinders 11.

Les circuits hydrauliques de commande des vérins 6 d'une part, et des vérins 11 d'autre part, sont de réglages séparés. Il est ainsi possible de régler le desserrage du grand côté 3 afin d'éviter, pendant que l'on déplace les petits côtés 7 en cours de coulée, tout grippage de ceux-ci, en dépit de la pression ferrostatique et de phénomènes d'origine thermique.The hydraulic circuits for controlling the jacks 6 on the one hand, and the jacks 11 on the other hand, are of separate settings. It is thus possible to adjust the loosening of the long side 3 in order to avoid, while moving the short sides 7 during casting, any seizure of these, despite the ferrostatic pressure and phenomena of thermal origin.

On a représenté sur la figure 3 le circuit hydraulique permettant des réglages séparés pour les vérins supérieurs 6 et les vérins inférieurs 11.FIG. 3 shows the hydraulic circuit allowing separate adjustments for the upper cylinders 6 and the lower cylinders 11.

Comme on le voit sur le dessin, les canalisations 12 alimentant les vérins 6 sont réunies en une seule canalisation 13, et les canalisations 14 alimentant les vérins 11 sont réunies en une seule canalisation 15. Les canalisations 13 et 15 conduisent chacune à des vannes de réglage de pression, respectivement 16 et 17, puis elles sont réunies en une seule canalisation 18 sur laquelle est appliquée ou relachée la pression hydraulique à l'aide d'une électro-valve classique 19.As can be seen in the drawing, the pipes 12 supplying the jacks 6 are combined in a single pipe 13, and the pipes 14 supplying the jacks 11 are joined in a single pipe 15. The pipes 13 and 15 each lead to valves for pressure adjustment, respectively 16 and 17, then they are combined in a single pipe 18 on which the hydraulic pressure is applied or released using a conventional solenoid valve 19.

En fonctionnement, c'est-à-dire en cours de réglage, on réglera les dispositifs 16 et 17 de sorte que la pression de contact entre grands et petits côtés ait une valeur uniforme donnée. On pourra de même règler ces pressions de sorte que cette pression de contact reste constante pour différents écartements des petits côtés.In operation, that is to say during adjustment, the devices 16 and 17 will be adjusted so that the contact pressure between large and small sides has a given uniform value. We can similarly adjust these pressures so that this contact pressure remains constant for different spacings of the short sides.

Claims (3)

1. Device for the adjustment, during casting, of a mould for the continuous casting of products of rectangular cross-section, comprising two small sides (7) inserted between two large sides (2, 3) and means of clamping the large sides, which are capable of being released to adjust the small sides' (7) to a desired width, characterized in that the means of clamping the large sides (2, 3) comprise clamping means located. respectively at an upper level (9) and a lower level (10), and separate means, adjustable differently, for controlling the relaxation of the pressure exerted respectively by the upper clamping means (9) and by the lower clamping means (10).
2. Adjustment device according to Claim 1, characterized in that the upper and lower clamping means (9, 10) each comprise at least one pair of jacks (6) and (11) respectively, actuated hydraulically in the release direction by means of a release control circuit comprising two separate branches (13) and (15) supplying the two pairs of jacks (6) and (11) respectively, each branch (13) or (15) being equipped with pressure-regulating means (16) and (17) respectively.
3. Adjustment device according to Claim 2, characterized in that each branch of the release control circuit comprises a single pipeline (13), (15) equipped with a pressure-regulating valve (16) (17) and connected by means of pipelines (12, 14) to the pair of corresponding jacks (6, 11), the two pipelines (13, 15) being supplied from a single pipeline (18) itself equipped with a valve (19).
EP83401962A 1982-10-08 1983-10-07 Apparatus for the adjustment of a continuous-casting mould Expired - Lifetime EP0107564B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401962T ATE19974T1 (en) 1982-10-08 1983-10-07 DEVICE FOR ADJUSTING A CONTINUOUS CASTING MOLD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216855 1982-10-08
FR8216855A FR2534163B1 (en) 1982-10-08 1982-10-08 ADJUSTMENT DEVICE FOR CONTINUOUS CASTING LINGOTIERE

Publications (3)

Publication Number Publication Date
EP0107564A1 EP0107564A1 (en) 1984-05-02
EP0107564B1 true EP0107564B1 (en) 1986-05-28
EP0107564B2 EP0107564B2 (en) 1990-05-16

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ID=9278078

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EP83401962A Expired - Lifetime EP0107564B2 (en) 1982-10-08 1983-10-07 Apparatus for the adjustment of a continuous-casting mould

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EP (1) EP0107564B2 (en)
AT (1) ATE19974T1 (en)
DE (1) DE3363793D1 (en)
FR (1) FR2534163B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640096C1 (en) * 1986-11-24 1988-04-28 Voest Alpine Ag Continuous casting mould
DE3838010A1 (en) * 1988-11-09 1990-05-10 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR ADJUSTING THE STRAND FORMAT IN A CHOCOLATE IN A CONTINUOUS CASTING SYSTEM FOR METALS

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735883A1 (en) * 1987-10-23 1989-05-03 Thyssen Stahl Ag CHOCOLATE TO CONTINUOUSLY
DE3833014C2 (en) * 1988-09-29 2001-07-26 Sms Demag Ag Continuous casting mold
DE3930265A1 (en) * 1989-09-11 1991-03-14 Schloemann Siemag Ag CONTINUOUS CHOCOLATE
WO1992002324A1 (en) * 1990-08-09 1992-02-20 Voest-Alpine International Corp. An improved method for controlling the clamping forces exerted on a continuous casting mold
US5249622A (en) * 1992-04-13 1993-10-05 Stelco Inc. Retrofitted width adjusting mechanism for continuous casting
DE4309592C1 (en) * 1993-03-22 1994-04-21 Mannesmann Ag Mould for continuous casting with adjustable width - has linear bearings to keep the broad-side plates at given distance and to take up clamping force
DE19716664C2 (en) * 1997-04-22 1999-11-18 Schloemann Siemag Ag Method and device for bracing two opposite broad side walls of a continuous casting mold
DE19758385A1 (en) * 1997-12-23 1999-07-01 Mannesmann Ag Sidebars of an adjustable plate mold
CN102166633A (en) * 2011-03-31 2011-08-31 南京钢铁集团冶金铸造有限公司 Device for adjusting die casting size of steel plate casting blank

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632930A (en) *
FR1559772A (en) * 1968-01-15 1969-03-14
CH507757A (en) * 1970-03-10 1971-05-31 Concast Ag Plate mold for continuous casting
CH544598A (en) * 1972-03-03 1973-11-30 Concast Ag Adjustable plate mold for continuous casting
DE2620751A1 (en) * 1976-05-11 1977-11-17 Kloeckner Werke Ag Continuous casting wide steel slabs - where narrow mould walls can be moved and their angle varied to provide mould taper
JPS5340630A (en) * 1976-09-27 1978-04-13 Kawasaki Steel Co Method of augmenting width of cast piece in continuous casting
AT357716B (en) * 1978-09-05 1980-07-25 Voest Alpine Ag METHOD FOR CHANGING THE STRING CROSS-SECTION FORMAT AND DEVICE FOR IMPLEMENTING THE METHOD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640096C1 (en) * 1986-11-24 1988-04-28 Voest Alpine Ag Continuous casting mould
DE3838010A1 (en) * 1988-11-09 1990-05-10 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR ADJUSTING THE STRAND FORMAT IN A CHOCOLATE IN A CONTINUOUS CASTING SYSTEM FOR METALS

Also Published As

Publication number Publication date
FR2534163A1 (en) 1984-04-13
EP0107564B2 (en) 1990-05-16
FR2534163B1 (en) 1985-08-09
ATE19974T1 (en) 1986-06-15
EP0107564A1 (en) 1984-05-02
DE3363793D1 (en) 1986-07-03

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