EP0241825B1 - Procédé et dispositif pour ajuster une lingotière de coulée continue - Google Patents

Procédé et dispositif pour ajuster une lingotière de coulée continue Download PDF

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Publication number
EP0241825B1
EP0241825B1 EP87105003A EP87105003A EP0241825B1 EP 0241825 B1 EP0241825 B1 EP 0241825B1 EP 87105003 A EP87105003 A EP 87105003A EP 87105003 A EP87105003 A EP 87105003A EP 0241825 B1 EP0241825 B1 EP 0241825B1
Authority
EP
European Patent Office
Prior art keywords
mould
casting
wall
walls
continuous
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 - Lifetime
Application number
EP87105003A
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German (de)
English (en)
Other versions
EP0241825A3 (en
EP0241825A2 (fr
Inventor
Adalbert Röhrig
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.)
Concast Standard AG
Original Assignee
Concast Standard AG
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 Concast Standard AG filed Critical Concast Standard AG
Priority to AT87105003T priority Critical patent/ATE50176T1/de
Publication of EP0241825A2 publication Critical patent/EP0241825A2/fr
Publication of EP0241825A3 publication Critical patent/EP0241825A3/de
Application granted granted Critical
Publication of EP0241825B1 publication Critical patent/EP0241825B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D11/04—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 invention relates to a method and a device for adjusting a continuous casting mold with the features of the preamble of claim 1 and of claim 5.
  • the continuous casting plant can be adapted to different strand cross-sections by changing the mold or by changing the size of the mold within the continuous casting plant.
  • slab molds can be remotely controlled both during casting breaks or during the continuous casting operation in the strand width.
  • a continuous casting mold with a rectangular cross section is known, which is connected to a frame or a base plate.
  • Four mold walls with their cooled wall surfaces form a mold cavity.
  • a cooled mold wall surface collides with an end face of an adjacent mold wall.
  • the four molded walls are clamped together using lock screws.
  • Between each mold wall and the frame are further set screws that allow adjustment of the mold cavity.
  • the mold walls can be moved transversely to the direction of the strand to change the casting cone or their mutual distance. Adjusting such molds is time-consuming and is usually carried out in the mold workshop.
  • the adjustment range is further narrowly limited and a new adjustment requires gauges and measuring instruments.
  • the invention has for its object to provide a mold, the mold cavity is two-dimensional, i.e. in width and in thickness, is adjustable. Furthermore, the adjustment within the continuous casting plant and, if necessary, should also be able to be carried out during continuous casting operation. With larger format adjustments, it should also be possible to change the casting cone of the mold cavity.
  • the method according to the invention or the mold according to the invention make it possible to adjust a mold two-dimensionally within the continuous casting installation by remote control in an adjustment cycle. If desired, the adjustment can also be carried out while the casting operation is running. Alignment to a subsequent strand guide is ensured by a fixed side that remains in place during the adjustment. If desired, it can be rigidly connected to the frame.
  • a first mold wall can be displaced along an axis of movement which is at an acute angle to its mold wall surface.
  • a second and a third mold wall can be moved along axes of movement which run transversely or parallel to their mold wall surfaces.
  • all four mold walls can be moved simultaneously along components of motion which form an acute angle with their cooled mold wall surfaces.
  • a continuous casting mold provided for this method contains the features of claim 6.
  • the frame be arranged to be movable relative to a machine frame by means of a displacement device transversely to the direction of the strand.
  • a displacement device is procedurally to be controlled in such a way that when the fixed side of the mold is shifted by a predetermined displacement path, the frame is simultaneously displaced in the opposite direction by the same displacement path.
  • An advantageous two-dimensional alignment on subsequent support guide elements can be achieved if, according to an additional feature, a further mold wall is formed as a fixed side, which is only moved in the plane of its cooled wall surface during the mold cavity adjustment.
  • a course of movement of the mold wall which is oblique to the cooled mold wall surface can be achieved by various means.
  • the displacement device for the mold wall has a threaded spindle which forms an acute angle to the mold wall surface of the moving wall.
  • the inclined movement of the mold wall is less than or greater than 45 degrees. If square and rectangular cross sections are to be adjusted, it can be particularly advantageous if the displacement device for the mold wall has two movement spindles which are arranged at right angles to one another and which can be displaced in a predetermined ratio of the movement speed via a computer control.
  • Gap formation in the mold corners during the adjustment but also during the casting operation can lead to casting problems or to casting breaks.
  • each mold wall has a parallel to the mold wall surface and slight displacement transverse to the direction of the strand is made possible.
  • the spring force should be selected so that the face of the mold wall automatically presses against the mold wall surface of the adjacent wall with sufficient contact pressure.
  • the displacement device of each mold wall can be arranged in the frame so as to be pivotable about an axis provided parallel to the associated mold wall surface. So that an automatic adjustment of the casting cone is made possible during the casting operation, a remote-controlled pivoting device can be provided between the frame and the displacement device.
  • a continuous casting mold with a square mold cavity 13 is shown. It consists of a base plate or a frame 2 and four mold walls 3 - 6 attached to it, which form the mold cavity 13 with their cooled wall surfaces 8 - 11. At the four corners of the mold cavity 13 there is a cooled mold wall surface, e.g. 8, together with an end face 16 of the adjacent mold wall 4.
  • Several force devices are arranged to adjust the cross section of the mold cavity 13.
  • the mold wall 3 can be referred to as a fixed side. It can be attached to the frame 2 in an adjustable manner by means of spindles 12 or rigidly or adjustably connected to the frame 2 by other means. The mold wall 3 does not move during the format adjustment or only for the purpose of adapting the cone of the from cavity to the new format.
  • the mold wall 6 can also be referred to as a fixed side because it only moves in the direction of the arrow 14, i.e. moved in the plane of its cooled wall surface 11. It thus remains in alignment with the support members, not shown, which follow the mold.
  • two displacement devices 28 arranged one above the other, for example in the form of threaded spindles, are provided.
  • 15 shows a suspension and guiding device for the mold wall 6.
  • the mold wall 4 can be moved transversely to the strand running direction 22 during a format adjustment in the direction of a double arrow 21 to change the mutual distance from the mold wall 6.
  • displacement devices 27 are provided, for example as threaded spindles with a corresponding spindle drive.
  • the mold wall 5 is displaced along a movement component, represented by arrow 18, by means of a displacement device 25, which comprises a driven threaded spindle 26.
  • the displacement device 25 can form the support element for the mold wall 5 and is provided between the latter and the frame 2.
  • the movement component forms an acute angle 20 to the cooled mold wall surface 10. In the present example, this angle 20 is 45 degrees for an adjustment of a square mold cavity cross section. Dashed lines show the mold walls 4, 5 and 6 in a new position for a smaller casting format.
  • FIG. 2 schematically shows a support guide following the mold in the form of a cooling plate 17.
  • This cooling plate 17 is connected to the movable mold wall 4 via a carrier 19. When the mold wall 4 is moved, the cooling plate 17 also moves.
  • the cooling plate 17 is supported on the carrier 19 via springs 23. The cooling plate 17 thus presses against a strand with a predetermined spring force. Bumps on the strand, especially in one Adjustment movement during a running casting can thus be compensated for without loss of contact between the strand and the cooling plate 17.
  • the mold wall 5 likewise moves along a movement component which is represented by the arrow 18.
  • a displacement device 35 is moved on the one hand by the displacement device 36 and a spindle 38 in the direction of arrow 42, which in turn is connected to the mold wall 5 via a spindle 37.
  • the movement component represented by arrow 18 is thus a resultant movement of the two spindles 37 and 38, which are arranged at right angles to one another and which can be moved by a computer control 44 known per se with a predetermined ratio of the movement speed.
  • the resilient contact pressure or the spring travel can also compensate for conicity adjustments on the mold wall 4, which are made possible by movement devices 39, in such a way that no gap joint can arise between the mold walls 4 and 5.
  • the mold walls require a correspondingly low pivotability in the frame 2.
  • arrow 40 indicates a pivoting movement of the mold wall 5, for example about a central axis 41, of the upper spindle 37.
  • the mold wall 3 is elastically suspended or supported with respect to the frame 2 by means of bolts 30 and springs 31.
  • Spring assemblies 33 are also arranged between the mold wall 6 and displacement devices 32.
  • the displacement devices 32, 35, 36, 39 are connected to a computer control 44 which controls the displacements of the walls 4, 5, 6 according to program entries 45, 46.
  • a computer control 44 controls the displacements of the walls 4, 5, 6 according to program entries 45, 46.
  • a plurality of mold walls can be moved at the same time so that the cooled wall surfaces 8-11 on the mold corners remain in contact with the end faces (e.g. 16) of the adjacent cooled walls without a gap.
  • hydraulic relief cylinders can reduce these spring forces to a desired level during the adjustment movement.
  • FIGS. 5 and 6 the reference numerals for the same components are the same as in FIG. 1.
  • all mold walls in this mold are equipped with similar displacement devices, preferably movement spindles 26. If the format is changed during the casting operation, all four mold walls 3 - 6 can be moved simultaneously along components of movement according to arrows 18. The movement components form an acute angle 20 to the associated mold wall surfaces 8-11, which is 45 degrees when square formats are adjusted.
  • the mold wall 6 forms the fixed side, which is advantageously not moved relative to a fixed side of the strand guide or a machine axis.
  • a machine frame part is shown, on which the frame 2 of the mold is attached via a displacement device in the form of two spindles 51.
  • spindle drives 52 By means of spindle drives 52, the frame 2 of the mold can be displaced in relation to the machine frame part 50 transversely to the strand running direction (arrow 53). If the mold wall 6, like all other mold walls 3, 4, 5, is displaced by a predetermined displacement path, the frame 2 can simultaneously be displaced in the opposite direction by the same displacement path via the spindles 51.
  • the mold wall 6 thus remains in relation to the machine axis, although it moves relative to the frame 2.
  • FIGS. 5 and 6 On the left side of FIGS. 5 and 6, a pivoting device for the spindles 26, the sliding devices 25 and the mold wall 4 is shown.
  • a spindle guide 55 or a spindle suspension is pivotably arranged in the frame 2 via an axis 56. Via this axis 56, e.g. during a displacement movement of the mold wall 4, its inclination or the conicity of the mold cavity 13 can be changed by means of a drivable pivoting device 58.
  • the mold wall 5 is arranged on a support wall 60, sliding parallel to the mold wall surface 10.
  • a spring 62 is tensioned between the end face 61 opposite the butt 59 and an angle part 63 of the supporting wall 60. It generates a predetermined contact pressure on the butt joint 59.
  • a guide 65 is provided between the mold wall 5 and the supporting wall 60, which guide can follow the pivoting movements when the mold wall 4 is tapered about the axis 56.
  • an elastic buffer for absorbing small pivoting movements can be provided, for example, between the spindles 26 and the associated mold walls 3 - 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Dental Prosthetics (AREA)
  • Confectionery (AREA)
  • Casting Devices For Molds (AREA)

Claims (14)

1. Procédé d'ajustement d'une lingotière de coulée continue à section d'espace creux du moule essentiellement rectangulaire, constituée d'un cadre (2) et de quatre parois (3-6) du moule qui y sont fixées et qui forment, par leurs surfaces refroidies (8-11) un espace creux (13) du moule, étant précisé qu'aux angles de l'espace creux (13) du moule se rencontrent chaque fois une surface refroidie (par exemple 8) de paroi du moule avec une face frontale (16) d'une paroi voisine (4) du moule et que pour l'ajustement de l'espace creux (13) du moule, des parois (4, 5) du moule se déplacent transversalement à la direction de la coulée continue, pour modifier leur distance mutuelle, caractérisé en ce qu'au moins une paroi (5) du moule se translate selon une composante de déplacement (18) qui forme un angle aigu (20) avec sa surface refroidie (10) de paroi du moule.
2. Procédé selon la revendication 1, caractérisé en ce qu'une paroi (3) du moule est conçue comme côté fixe qui reste dans sa position de départ pendant l'ajustement de l'espace creux du moule.
3. Procédé selon la revendication 1, caractérisé en ce que l'on translate simultanément toutes les quatre parois (3-6) du moule selon des composantes de déplacement qui forment un angle aigu (20) par rapport à leurs surfaces (8-11) de paroi du moule.
4. Procédé selon la revendication 3, caractérisé en ce que, lors d'une translation du côté fixe de la lingotière d'une valeur prédéterminée de translation, on translate simultanément le cadre (2), dans le sens opposé, de la même valeur de translation (53).
5. Lingotière de coulée continue à section d'espace creux du moule essentiellement rectangulaire, constituée d'un cadre (2) et de quatre parois (3-6) du moule qui y sont fixées et qui forment, par leurs surfaces refroidies (8-11) un espace creux (13) du moule, étant précisé qu'aux angles de l'espace creux (13) du moule se rencontrent chaque fois une surface refroidie (par exemple 8) de paroi du moule avec une face frontale (16) d'une paroi voisine (4) du moule et que pour l'ajustement de l'espace creux (13) du moule, des parois (4, 5) du moule peuvent se déplacer transversalement à la direction de la coulée continue, pour modifier leur distance mutuelle, caractérisé en ce qu'entre au moins une paroi (5) du moule et le cadre (2) est prévu un dispositif de translation (25, 35, 36) pour un déplacement de cette paroi (5) selon un axe de déplacement (18) qui fait un angle aigu (20) avec la surface refroidie en question (10) de paroi du moule.
6. Lingotière de coulée continue selon la revendication 5, caractérisée en ce que les quatre parois (3-6) du moule sont disposées avec liberté de translation par rapport à un cadre support (2) au moyen de, chacune, un dispositif de translation, de préférence des broches (26) de déplacement; et en ce que la direction de chaque composante de déplacement des quatre parois (3-6) du moule fait un angle aigu (20), de préférence de 45 degrés, avec la surface respective (8-11) de paroi du moule.
7. Lingotière de coulée continue selon la revendication 5 ou 6, caractérisée en ce que la broche, ou les broches, (26) est disposée, ou sont disposées, dans le cadre (2) avec liberté de pivoter autour d'un axe (56) prévu parallèlement à la surface correspondante (8-11) de paroi du moule.
8. Lingotière de coulée continue selon la revendication 7, caractérisée en ce qu'entre le cadre (2) et un guidage de broche (55) est prévu un dispositif de pivotement (58).
9. Lingotière de coulée continue selon l'une des revendications 5-8, caractérisée en ce que le dispositif de translation (35, 36), pour la paroi (5) des moules présente deux broches de déplacement (37, 38) qui sont disposées perpendiculairement l'une à l'autre et qui, au moyen d'une commande par ordinateur, peuvent se déplacer avec un rapport prédéterminé des vitesses de déplacement.
10. Lingotière de coulée continue selon l'une des revendications 5-9, caractérisée en ce que les dispositifs de translation (25, 27, 28; ou 35, 36, 39, 32) sont reliés à une commande par ordinateur (44) et effectuent simultanément des translations prépro- grammées de plusieurs parois (4-6) du moule de façon telle qu'aux angles de la lingotière les surfaces refroidies (8-11) restent en contact sans jeu avec les faces frontales (par exemple 16) des parois refroidies voisines.
11. Lingotière de coulée continue selon l'une des revendications 5, 7-10, caractérisée en ce qu'au moins les deux parois mobiles (4, 5) du moule peuvent pivoter de façon limitée pour modifier la conicité de l'espace creux du moule.
12. Lingotière de coulée continue selon l'une des revendications 5-11, caractérisée en ce que les parois (3-6) du moule sont disposées avec une élasticité limitée transversalement à leurs surfaces refroidies (8-11).
13. Lingotière de coulée continue selon l'une des revendications 5-12, caractérisée en ce que chaque paroi (3-6) du moule s'appuie élastiquement sur une paroi support (60) avec liberté de translation parallèlement à la surface (8-11) de paroi du moule et essentiellement transversalement à la direction de la coulée continue; et en ce qu'au moins un ressort (32) appuie automatiquement la face frontale de la paroi (5) du moule contre la surface (9) de la paroi voisine (4) du moule.
14. Lingotière de coulée continue selon l'une des revendications 5-13, caractérisée en ce que le cadre (2) est disposé avec liberté de déplacement transversalement à la direction de la coulée continue par rapport à une charpente (50) de l'installation, au moyen d'un dispositif de translation (51, 52).
EP87105003A 1986-04-15 1987-04-04 Procédé et dispositif pour ajuster une lingotière de coulée continue Expired - Lifetime EP0241825B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105003T ATE50176T1 (de) 1986-04-15 1987-04-04 Verfahren und vorrichtung zum verstellen einer stranggiesskokille.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1494/86 1986-04-15
CH1494/86A CH670779A5 (fr) 1986-04-15 1986-04-15

Publications (3)

Publication Number Publication Date
EP0241825A2 EP0241825A2 (fr) 1987-10-21
EP0241825A3 EP0241825A3 (en) 1988-07-20
EP0241825B1 true EP0241825B1 (fr) 1990-02-07

Family

ID=4211767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105003A Expired - Lifetime EP0241825B1 (fr) 1986-04-15 1987-04-04 Procédé et dispositif pour ajuster une lingotière de coulée continue

Country Status (8)

Country Link
US (1) US4719966A (fr)
EP (1) EP0241825B1 (fr)
JP (1) JPS6316835A (fr)
AT (1) ATE50176T1 (fr)
CA (1) CA1304563C (fr)
CH (1) CH670779A5 (fr)
DE (1) DE3761613D1 (fr)
ES (1) ES2015280B3 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056040A (en) * 1997-10-10 2000-05-02 Alcan International Limited Mould device with adjustable walls
DE19753959A1 (de) * 1997-12-05 1999-06-10 Schloemann Siemag Ag Kokille mit Breitseiten- und Schmalseitenanstellung
US6041848A (en) * 1998-01-13 2000-03-28 Sms Concast Division Of Sms-Schloemann Siemag Inc. Adjustable continuous casting mold
DE19842110C1 (de) * 1998-09-08 1999-08-26 Mannesmann Ag Verstellbare Plattenkokille
US6857464B2 (en) * 2002-09-19 2005-02-22 Hatch Associates Ltd. Adjustable casting mold
KR101503444B1 (ko) * 2012-12-12 2015-03-17 주식회사 포스코 주형 및 이를 이용한 연속 주조 방법
ITUD20130054A1 (it) * 2013-04-23 2014-10-24 Danieli Off Mecc Apparato per la colata continua e metodo di montaggio di detto apparato per la colata continua
JP6323244B2 (ja) * 2014-08-08 2018-05-16 トヨタ自動車株式会社 高温成形用金型
KR20230004813A (ko) * 2020-07-22 2023-01-06 노벨리스 인크. 직접 냉각 주조 몰드 시스템

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049769A (en) * 1961-07-14 1962-08-21 United States Steel Corp Adjustable-taper mold for continuous casting
DE1758982C3 (de) * 1968-09-11 1973-09-20 Demag Ag, 4100 Duisburg Langsgeteilte Stranggießkokille für Metalle, insbesondere fur Stahl
SU531374A1 (ru) * 1975-03-24 1982-05-30 Московский Трижды Ордена Ленина И Ордена Трудового Красного Знамени Автомобильный Завод Им.Лихачева Кристаллизатор
JPS55103261A (en) * 1979-02-05 1980-08-07 Sumitomo Metal Ind Ltd Mold for continuous casting machine of variable width and thickness

Also Published As

Publication number Publication date
JPS6316835A (ja) 1988-01-23
ATE50176T1 (de) 1990-02-15
ES2015280B3 (es) 1990-08-16
EP0241825A3 (en) 1988-07-20
US4719966A (en) 1988-01-19
EP0241825A2 (fr) 1987-10-21
DE3761613D1 (de) 1990-03-15
CH670779A5 (fr) 1989-07-14
CA1304563C (fr) 1992-07-07

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