EP0086405A1 - Procédé et dispositif pour refroidir et supporter une barre dans une lingotière à plaques d'une installation de coulée continue d'acier - Google Patents

Procédé et dispositif pour refroidir et supporter une barre dans une lingotière à plaques d'une installation de coulée continue d'acier Download PDF

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Publication number
EP0086405A1
EP0086405A1 EP83101009A EP83101009A EP0086405A1 EP 0086405 A1 EP0086405 A1 EP 0086405A1 EP 83101009 A EP83101009 A EP 83101009A EP 83101009 A EP83101009 A EP 83101009A EP 0086405 A1 EP0086405 A1 EP 0086405A1
Authority
EP
European Patent Office
Prior art keywords
strand
mold wall
mold
movement
wall
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
EP83101009A
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German (de)
English (en)
Other versions
EP0086405B1 (fr
Inventor
Josef Zeller
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 Service Union AG
Original Assignee
Concast Service Union 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 Service Union AG filed Critical Concast Service Union AG
Priority to AT83101009T priority Critical patent/ATE13828T1/de
Publication of EP0086405A1 publication Critical patent/EP0086405A1/fr
Application granted granted Critical
Publication of EP0086405B1 publication Critical patent/EP0086405B1/fr
Expired legal-status Critical Current

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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 invention relates to a method and a device for cooling and supporting a strand in a plate mold of a steel continuous casting installation during a change in casting parameters, in particular during a movement of a mold wall arranged between broad side walls to change the strand cross section.
  • plate molds with a mold cavity which is adjustable in width.
  • narrow side walls arranged between broad side walls can be moved transversely to the direction of run of the strand by adjusting devices such as spindles etc.
  • the invention has for its object to provide a method and an apparatus that enables optimal cooling and support of the strand crust while changing a casting parameter, in particular when changing the position of mold walls, wherein a high adjustment speed and a while the casting operation high operational reliability is to be achieved.
  • this is achieved in that the mold wall is provided with a bend corresponding to the current geometric configuration of the moving strand crust associated with this mold wall during the movement.
  • the device according to the invention is characterized in that a device for bending the mold wall is assigned to at least one mold wall and that the central axes of the circles of curvature of the bending line run transversely to the strand running direction and parallel to the mold wall and the bending device is connected to a control device.
  • the mold wall and support an optimal cooling of the strand or of the still thin Stran is g crust even during a change in the position achieved at low friction. This leads to a high heat dissipation with a uniform crust growth and an error-free strand surface.
  • the high possible adjustment speed enables a shortening of conical transition pieces on the strand with larger width adjustment steps at the same time.
  • the optimal cooling and support of the still thin strand crust further significantly reduces the risk of breakthrough and thus additionally results in an indirect increase in performance when casting different strand cross-sections without interrupting the pouring. Wear on the mold walls can also be reduced.
  • the current geometric configuration of the moving strand crust can be a function of the pivoting speed or the speed of movement of the strand crust be predetermined using a computer. Such predefined stored values are advantageously used to control the bending of the mold wall.
  • the bending and the speed of displacement can also be set as a function of measurements of the heat output of the mold wall that follow in the direction of the strand.
  • gap-free support of the strand crust can be achieved if the central axes of the circles of curvature of the curved mold wall run transverse to the direction of the strand and parallel to the mold wall.
  • the flexible mold wall can be constructed using various construction principles and with various flexible materials.
  • An advantageous construction results when the mold wall consists of a flexible wall and a rigid support plate and the bending device consists of movement devices which are arranged on both sides of a support axis and can be operated independently and are connected to the support plate.
  • the flexible wall is advantageously constructed from a copper plate and a flexible, non-metallic composite plate provided with cooling channels.
  • the invention recommends that the support axis is designed as a joint between the flexible wall and the rigid support plate.
  • Fig. 1 two narrow side walls 2, 2 'and two broad side walls 3, 3' are attached in a frame 1.
  • a mold wall 20 which could be used, for example, as a narrow side wall in the mold according to FIG. 1, is constructed from a flexible wall 21 and a rigid support plate 22.
  • Bending devices 24 are pivotally arranged on both sides of a support axis 26 on the rigid support plate 22 and are connected in an articulated manner to the flexible wall 21.
  • the two bending devices 24 consist of independently actuable stepper motors for the movement of bending spindles 27.
  • the support axis 26 is formed in this wall as a joint between the flexible wall 21 and the rigid support plate 22.
  • the flexible mold wall 21 is constructed from a copper plate 30 and from a flexible composite plate 32 provided with cooling channels 31. To reduce the bending force, it can consist of a non-metallic material, e.g. made of a plastic, hard rubber or a similar material.
  • the flexible wall 21 can be bent convexly or, as shown in dash-dotted lines, concavely.
  • movement devices 25 such as spindles and drives 12 interacting with spindle nuts, are provided in the mold frame 15 for pivoting and / or displacing the mold wall 20.
  • These drives 12 are also electrically connected to the computer 14 via control devices 13. Bending, pivoting and parallel movements of the mold wall 20 can be coordinated with one another as desired.
  • a displacement movement in the direction of arrow 39 can also be superimposed, as the wall position 37 shows.
  • the deflection is generally reduced to zero in accordance with the calculated curvature of the strand crust.
  • Axes 40, 40 ' which represent the geometric center of the circles of curvature (not to scale), from which the bending curve of the curved mold wall is made up, run transversely to the strand running direction 42 and parallel to the mold wall.
  • the bend lines 33 '34' show that the mold wall can only be bent over part of its length.
  • the mold wall is bent on one side (above) of the central axis 43 lying transversely to the strand running direction and pivoted obliquely to the strand running direction 42 on the other side (below) of the central axis.
  • the support and cooling of the strand crust can be checked and, if necessary, corrected in addition or as an alternative to the computational method by means of measurements of the heat output of the mold wall following in the direction of strand 42.
  • a bend or change in the bend of a mold wall can also be applied when the mold cavity is adjusted to adapt to changing casting parameters such as casting speed, casting temperature, steel analysis, bath level height in the mold, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP83101009A 1982-02-12 1983-02-03 Procédé et dispositif pour refroidir et supporter une barre dans une lingotière à plaques d'une installation de coulée continue d'acier Expired EP0086405B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101009T ATE13828T1 (de) 1982-02-12 1983-02-03 Verfahren und vorrichtung zum kuehlen und stuetzen eines stranges in einer plattenkokille einer stahlstranggiessanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH879/82 1982-02-12
CH879/82A CH658009A5 (de) 1982-02-12 1982-02-12 Verfahren und plattenkokille zum kuehlen und stuetzen eines stranges in einer plattenkokille einer stahlstranggiessanlage.

Publications (2)

Publication Number Publication Date
EP0086405A1 true EP0086405A1 (fr) 1983-08-24
EP0086405B1 EP0086405B1 (fr) 1985-06-19

Family

ID=4197300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101009A Expired EP0086405B1 (fr) 1982-02-12 1983-02-03 Procédé et dispositif pour refroidir et supporter une barre dans une lingotière à plaques d'une installation de coulée continue d'acier

Country Status (7)

Country Link
US (1) US4505321A (fr)
EP (1) EP0086405B1 (fr)
JP (1) JPS58151951A (fr)
AT (1) ATE13828T1 (fr)
CA (1) CA1202762A (fr)
CH (1) CH658009A5 (fr)
DE (1) DE3360271D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0925859A1 (fr) * 1997-12-23 1999-06-30 MANNESMANN Aktiengesellschaft Parois latérales pour lingotière à plaques

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555079B1 (fr) * 1983-11-23 1986-03-28 Fives Cail Babcock Procede pour modifier la largeur d'une brame produite en coulee continue sans interrompre la coulee
DE3407294C2 (de) * 1984-02-29 1986-04-24 SMS Schloemann-Siemag AG, 4000 Düsseldorf Vorrichtung zur Verstellung von Kokillenschmalseitenwänden
AU554019B2 (en) * 1984-11-09 1986-08-07 Nippon Steel Corporation Changing slab width in continuous casting
US5279354A (en) * 1990-11-30 1994-01-18 Acutus Industries, Inc. Method of continuous casting with changing of slab width
US6857464B2 (en) * 2002-09-19 2005-02-22 Hatch Associates Ltd. Adjustable casting mold
SI1790347T1 (sl) 2002-12-20 2015-03-31 F. Hoffmann-La Roche Ag Formulacija z visokim odmerkom ibandronata
US9545662B2 (en) * 2007-08-23 2017-01-17 Wagstaff, Inc. Automated variable dimension mold and bottom block system
NO347543B1 (en) * 2008-11-21 2023-12-27 Norsk Hydro As Støpeutstyr for støping av valseblokk
CN104014782A (zh) * 2014-06-24 2014-09-03 济钢集团有限公司 一种防结晶器内坯壳快速收缩用支撑件及其使用方法
US11331715B2 (en) 2017-06-12 2022-05-17 Wagstaff, Inc. Dynamic mold shape control for direct chill casting
US10350674B2 (en) * 2017-06-12 2019-07-16 Wagstaff, Inc. Dynamic mold shape control for direct chill casting
US11883876B2 (en) 2017-06-12 2024-01-30 Wagstaff, Inc. Dynamic mold shape control for direct chill casting
US11717882B1 (en) 2022-02-18 2023-08-08 Wagstaff, Inc. Mold casting surface cooling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH477244A (de) * 1968-11-26 1969-08-31 Concast Ag Verfahren zur Rückbildung von Verwerfungen von Wandelementen einer Plattenkokille zum Stranggiessen und Vorrichtung zur Durchführung des Verfahrens
DE1608083A1 (de) * 1967-02-13 1972-03-02 Sumitomo Metal Ind Verfahren und Vorrichtung zum Erzeugen von Stahlbloecken
FR2445744A1 (fr) * 1979-01-04 1980-08-01 Clesid Sa Perfectionnement aux machines de coulee continue
EP0028766A1 (fr) * 1979-11-02 1981-05-20 Concast Holding Ag Procédé et installation pour changer les dimensions d'une barre lors de la coulée continue

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758867A1 (de) * 1968-08-24 1971-03-04 Kabel Metallwerke Ghh Stranggusskokille,insbesondere Bogenkokille,zum Giessen von Brammen aus Schwermetall
CH558687A (de) * 1973-03-30 1975-02-14 Concast Ag Verfahren zum steuern der kuehlleistung von schmalseitenwaenden bei plattenkokillen beim stranggiessen und plattenkokille zur durchfuehrung des verfahrens.
US4030536A (en) * 1973-04-30 1977-06-21 Alcan Research And Development Limited Apparatus for continuous casting of metals
US3978909A (en) * 1974-01-02 1976-09-07 Allis-Chalmers Corporation Mold with convex sidewalls for continuous casting machines
AT343304B (de) * 1976-01-27 1978-05-26 Voest Ag Plattenkokille zum stranggiessen
JPS5428227A (en) * 1977-08-04 1979-03-02 Nippon Kokan Kk Mold for continuous casting
AT374128B (de) * 1978-06-14 1984-03-26 Voest Alpine Ag Stranggiesskokille
CH639885A5 (de) * 1979-09-21 1983-12-15 Concast Ag Verfahren zur einstellung der verstellgeschwindigkeit der schmalseite(n) einer plattenkokille.
CH643764A5 (de) * 1979-10-02 1984-06-29 Concast Ag Verfahren zur ueberwachung der kokillengeometrie beim stahlstranggiessen.
JPS56102353A (en) * 1980-01-17 1981-08-15 Kawasaki Steel Corp Method of changing ingot width in continuous casting
JPS56119646A (en) * 1980-02-22 1981-09-19 Kawasaki Steel Corp Mold controlling method of continuous casting machine
JPS5714443A (en) * 1980-06-27 1982-01-25 Ishikawajima Harima Heavy Ind Co Ltd Variable taper mold for continuous casting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1608083A1 (de) * 1967-02-13 1972-03-02 Sumitomo Metal Ind Verfahren und Vorrichtung zum Erzeugen von Stahlbloecken
CH477244A (de) * 1968-11-26 1969-08-31 Concast Ag Verfahren zur Rückbildung von Verwerfungen von Wandelementen einer Plattenkokille zum Stranggiessen und Vorrichtung zur Durchführung des Verfahrens
FR2445744A1 (fr) * 1979-01-04 1980-08-01 Clesid Sa Perfectionnement aux machines de coulee continue
EP0028766A1 (fr) * 1979-11-02 1981-05-20 Concast Holding Ag Procédé et installation pour changer les dimensions d'une barre lors de la coulée continue

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0925859A1 (fr) * 1997-12-23 1999-06-30 MANNESMANN Aktiengesellschaft Parois latérales pour lingotière à plaques
DE19758385A1 (de) * 1997-12-23 1999-07-01 Mannesmann Ag Seitenleisten einer verstellbaren Plattenkokille

Also Published As

Publication number Publication date
JPH0369618B2 (fr) 1991-11-01
CH658009A5 (de) 1986-10-15
JPS58151951A (ja) 1983-09-09
ATE13828T1 (de) 1985-07-15
EP0086405B1 (fr) 1985-06-19
DE3360271D1 (en) 1985-07-25
CA1202762A (fr) 1986-04-08
US4505321A (en) 1985-03-19

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