EP0276418B1 - Coquille pour la coulée continue de l'acier - Google Patents

Coquille pour la coulée continue de l'acier Download PDF

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Publication number
EP0276418B1
EP0276418B1 EP87118016A EP87118016A EP0276418B1 EP 0276418 B1 EP0276418 B1 EP 0276418B1 EP 87118016 A EP87118016 A EP 87118016A EP 87118016 A EP87118016 A EP 87118016A EP 0276418 B1 EP0276418 B1 EP 0276418B1
Authority
EP
European Patent Office
Prior art keywords
narrow side
side walls
side wall
continuous casting
spacer 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.)
Expired - Lifetime
Application number
EP87118016A
Other languages
German (de)
English (en)
Other versions
EP0276418A1 (fr
Inventor
Hans Streubel
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag 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 SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT87118016T priority Critical patent/ATE50523T1/de
Publication of EP0276418A1 publication Critical patent/EP0276418A1/fr
Application granted granted Critical
Publication of EP0276418B1 publication Critical patent/EP0276418B1/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
    • B22D11/0408—Moulds for casting thin slabs

Definitions

  • the invention relates to a continuous steel casting mold with two oppositely arranged, cooled broad side walls and between the broad side walls with adjustable play arranged narrow side walls, a one-piece narrow side wall being pivotally arranged on a spacer plate clamped between the wide side walls and displaceable for setting the format.
  • a spacer plate is clamped between broad side walls by pressure medium cylinders and is adjustable by a spindle drive.
  • An axis is arranged on the underside of the spacer plate, on which a narrow side wall is pivotably mounted.
  • a spindle drive for conicity adjustment is attached to the top of the spacer plate, the spindle of which is connected to the top of the narrow side wall.
  • the dimension of the spacer plate determining the mold opening width is up to 2 mm larger than the narrow side wall width. The conicity of the narrow side wall on the mold entrance side is adjusted according to the changes in the casting parameters, while the distance between the narrow side walls remains largely constant at the mold exit.
  • Chill molds are used in which the conicity is adjusted by pivoting the underside of the narrow side wall, the upper distance between the narrow side walls remaining constant.
  • Such a mold has been further developed by EP-A 1 114 293 in such a way that an adjusting device for the underside of the narrow side wall is actuated to generate a force counteracting the bulge and to keep this force constant, taking into account the friction between the narrow side wall and the broad side walls. Knowledge of the frictional forces is required for this.
  • a continuous steel caster for billets and blooms which consists of a format-forming upper part with rigid walls and a spaced lower part with spaced movable walls.
  • the movable walls are either articulated in the middle part of the mold on the underside of the rigid walls or on a carrier arranged below the upper part and can be adjusted resiliently against the strand. With this complex mold, uniform cooling and support is not guaranteed over the entire mold height.
  • the object of the invention is to provide a break-proof steel continuous casting installation in which uniform heat dissipation of the narrow sides of the strand is unaffected by the strand shrinkage and changes in casting speed.
  • the narrow side wall adjustment device is to be improved in such a way that a delay-free adaptation of the taper of the narrow side wall to the actual strand shrinkage, which is not influenced by frictional forces, is achieved.
  • the aim is to simplify the adjustment drive of the narrow side wall.
  • the narrow side wall is articulated on its upper side to the spacer plate and can be adjusted resiliently against the cast strand below the articulation point.
  • the taper of the narrow side walls is adapted without delay to the changing strand shrinkage, the strand dimension remaining constant. If the width changes during casting, the narrow side wall automatically adapts to the strand contour. As a result, a common drive for the upper and lower adjusting spindle of the narrow side wall can be used instead of individual drives.
  • a spring element is arranged below the articulation axis between the spacer plate and the narrow side wall, one or two adjusting elements being connected to the spacer plate.
  • an upper adjusting element can be connected to the spacer plate, a lower adjusting element being passed through an opening in the spacer plate and acting on the narrow side wall via a spring element.
  • a pressure medium cylinder can advantageously be provided as the spring element.
  • the current inclination of the narrow side wall is determined by an inclinometer.
  • the width of the narrow side walls and spacer plates can be less than 70 mm.
  • the broad side walls can be expanded in a funnel shape to form a pouring area.
  • Such a continuous casting mold can be used for casting thin steel strips of 20 to 70 mm in thickness at casting speeds above 2.5 m / min.
  • a narrow side wall 3, 4 and a spacer plate 5, 6 are each connected to the casting side of the mold by a joint 13.
  • adjusting mechanisms 14 are arranged on the frame 8, the adjusting elements 15 of which are attached to the rear of the spacer plates 5, 6.
  • a lower adjusting element 16 is attached to the rear of the spacer plate 5.
  • a pressure-controlled cylinder 17 is arranged as a spring element, the piston 18 of which acts with a defined force against the back of the narrow side wall 3 when pressurized.
  • the distance plate 5 can also be adjusted via a single central adjustment element 16a.
  • a lower adjusting element 19 is passed through an opening in the spacer plate 6 and is provided on the end face with a pressure-controlled cylinder 20, the piston 21 of which acts against the rear side of the narrow side wall 4 with a defined force.
  • the narrow side walls 3, 4 adapt without delay to the contour of the narrow sides of the strand during casting, both with changed strand shrinkage and with changes in the strand width according to the program.
  • a hook connection 22, 23 with a limited freedom of movement is provided between a spacer plate 5, 6 and the associated narrow side wall 3 or 4 as a pivoting limitation.
  • the respective inclination of the narrow side wall 3, 4 is indicated by an inclinometer 24.
  • the narrow side walls 3 ', 4' and the spacer plates 5 ', 6' have a width less than 70 mm.
  • the broad side walls 1 ', 2' are expanded in a funnel shape to form a pouring region 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Confectionery (AREA)

Claims (9)

1. Lingotière de coulée continue d'acier comportant deux grandes parois latérales refroidies (1, 2) agencées l'une en face de l'autre et deux petites parois latérales (3, 4) agencées moyennant un jeu entre les grandes parois latérales (1, 2), de manière réglable, une petite paroi latérale en une seule pièce (3, 4) étant agencée de manière basculable sur une plaque d'entretoisement (5, 6) calée entre les grandes parois latérales (1, 2) et déplaçable en vue du réglage des dimensions, caractérisée en ce que la petite paroi latérale (3, 4) est articulée sur la plaque d'entretoisement (5, 6) du côté de l'admission du métal en fusion et est positionnable contre le lingot continu en dessous de l'articulation (13), par effet de ressort.
2. Lingotière de coulée continue selon la revendication 1 caractérisée en ce qu'un élément de ressort (17) est agencé en dessous de l'articulation (13), entre la plaque d'entretoisement (5) et la petite paroi latérale (3) et en ce que un ou deux organes de réglage (15, 16, 16a) sont reliés à la plaque d'entretoisement (5).
3. Lingotière de coulée continue selon la revendication 1 caractérisée en ce qu'un organe de réglage supérieur (15) est relié à la plaque d'entretoisement (6) et en ce qu'un organe de réglage inférieur (19) est mené à travers une ouverture pratiquée dans la plaque d'entretoisement (6) et agit via un élément de ressort (20) sur la petite paroi latérale (4).
4. Lingotière de coulée continue selon la revendication 2 ou 3 caractérisée en ce que l'élément de ressort est un cylindre sous pression (20).
5. Lingotière de coulée continue selon la revendication 1 caractérisé en ce qu'un limiteur de basculement (22, 23) est associé à la petite paroi latérale (3, 4).
6. Lingotière de coulée continue selon la revendication 1 caractérisée en ce qu'un dispositif de mesure de l'angle d'inclinaison (24) est associé à la petite paroi latérale (3, 4)
7. Lingotière de coulée continue selon l'une ou plusieurs des revendications 1 à 6 caractérisée en ce que la largeur des petites parois latérales (3, 4) et des plaques d'entretoisement (5, 6) est inférieure à 70 mm.
8. Lingotière de coulée continue selon l'une ou plusieurs des revendications 1 à 7 caractérisée en ce que les grandes parois latérales (1, 2) sont évasées vers le haut à la manière d'un entonnoir en vue de former une zone d'admission du métal en fusion (25).
9. Utilisation d'un lingotière de coulée continue selon les revendications 7 et 8 pour la coulée continue de bandes d'acier minces ayant une épaisseur de 20 à 70 mm, à une vitesse de coulée supérieure à 2,5 m/min.
EP87118016A 1986-12-20 1987-12-05 Coquille pour la coulée continue de l'acier Expired - Lifetime EP0276418B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118016T ATE50523T1 (de) 1986-12-20 1987-12-05 Stahlstranggiesskokille.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3643740 1986-12-20
DE19863643740 DE3643740A1 (de) 1986-12-20 1986-12-20 Stahlstranggiesskokille

Publications (2)

Publication Number Publication Date
EP0276418A1 EP0276418A1 (fr) 1988-08-03
EP0276418B1 true EP0276418B1 (fr) 1990-02-28

Family

ID=6316761

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118016A Expired - Lifetime EP0276418B1 (fr) 1986-12-20 1987-12-05 Coquille pour la coulée continue de l'acier

Country Status (5)

Country Link
EP (1) EP0276418B1 (fr)
AT (1) ATE50523T1 (fr)
DE (2) DE3643740A1 (fr)
ES (1) ES2013624B3 (fr)
GR (1) GR3000365T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539829A1 (fr) * 1991-10-31 1993-05-05 DANIELI & C. OFFICINE MECCANICHE S.p.A. Lingotière courbe pour la coulée continue courbe des brames minces
US5339877A (en) * 1991-10-31 1994-08-23 Danieli & C. Officine Meccaniche Spa Crystallizer, or inner portion, of a mould having a lengthwise curvature for continuous curved casting of thin slabs
DE4403050C1 (de) * 1994-01-28 1995-09-28 Mannesmann Ag Stranggießkokille zum Führen von Strängen
EP0920937A2 (fr) * 1997-12-05 1999-06-09 Sms Schloemann-Siemag Aktiengesellschaft Lingotière pour la coulée continue

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907351C2 (de) * 1989-03-08 1998-09-24 Schloemann Siemag Ag Eingießtrichter einer Kokille
DE19519560A1 (de) * 1995-05-27 1996-11-28 Schloemann Siemag Ag Verfahren zur Herstellung von Dünnbrammen oder Stahlbändern
DE10314460B4 (de) * 2003-03-28 2006-04-20 Sms Demag Ag Verfahren und Stranggießvorrichtung mit einer Stranggießkokille zum Gießen von flüssigen Metallen, insbesondere von Stahlwerkstoffen
DE102005024843B4 (de) * 2005-05-27 2017-08-17 Thyssenkrupp Steel Europe Ag Verfahren zum Regeln der Schmalseitenkonizität einer Plattenkokille
CN103192040B (zh) * 2013-04-15 2015-12-16 中国重型机械研究院股份公司 一种用于连续浇注两流板坯的结晶器***

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH602223A5 (fr) * 1976-12-30 1978-07-31 Concast Ag
DE3224065C2 (de) * 1982-06-28 1984-05-30 Benteler-Werke Ag Werk Neuhaus, 4790 Paderborn Verstellbare Stranggießkokille für Vielfachstranggießanlagen
DE3247207A1 (de) * 1982-12-21 1984-07-05 SMS Schloemann-Siemag AG, 4000 Düsseldorf Verfahren und vorrichtung zur einstellung der konizitaet von schmalseitenwaenden von stranggiesskokillen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539829A1 (fr) * 1991-10-31 1993-05-05 DANIELI & C. OFFICINE MECCANICHE S.p.A. Lingotière courbe pour la coulée continue courbe des brames minces
US5339877A (en) * 1991-10-31 1994-08-23 Danieli & C. Officine Meccaniche Spa Crystallizer, or inner portion, of a mould having a lengthwise curvature for continuous curved casting of thin slabs
US5343931A (en) * 1991-10-31 1994-09-06 Danieli & C. Officine Meccaniche Spa Crystallizer, or inner portion, of a mold for the continuous curved casting of thin slabs
DE4403050C1 (de) * 1994-01-28 1995-09-28 Mannesmann Ag Stranggießkokille zum Führen von Strängen
EP0920937A2 (fr) * 1997-12-05 1999-06-09 Sms Schloemann-Siemag Aktiengesellschaft Lingotière pour la coulée continue
EP0920937A3 (fr) * 1997-12-05 2000-05-03 Sms Schloemann-Siemag Aktiengesellschaft Lingotière pour la coulée continue
US6145580A (en) * 1997-12-05 2000-11-14 Sms Schloemann-Siemag Ag Continuous-casting mold with small side adjustment

Also Published As

Publication number Publication date
GR3000365T3 (en) 1991-06-07
DE3643740A1 (de) 1988-06-30
ATE50523T1 (de) 1990-03-15
ES2013624B3 (es) 1990-05-16
DE3761747D1 (de) 1990-04-05
EP0276418A1 (fr) 1988-08-03

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