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EP0177796B1 - Procédé et dispositif pour guider et diriger une bande de coulée dans la région d'alignement et d'écoulement d'une installation courbée de coulée continue - Google Patents

Procédé et dispositif pour guider et diriger une bande de coulée dans la région d'alignement et d'écoulement d'une installation courbée de coulée continue Download PDF

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Publication number
EP0177796B1
EP0177796B1 EP85111577A EP85111577A EP0177796B1 EP 0177796 B1 EP0177796 B1 EP 0177796B1 EP 85111577 A EP85111577 A EP 85111577A EP 85111577 A EP85111577 A EP 85111577A EP 0177796 B1 EP0177796 B1 EP 0177796B1
Authority
EP
European Patent Office
Prior art keywords
straightening
rollers
hydraulic
opposite
continuous casting
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
EP85111577A
Other languages
German (de)
English (en)
Other versions
EP0177796A3 (en
EP0177796A2 (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 AT85111577T priority Critical patent/ATE39864T1/de
Publication of EP0177796A2 publication Critical patent/EP0177796A2/fr
Publication of EP0177796A3 publication Critical patent/EP0177796A3/de
Application granted granted Critical
Publication of EP0177796B1 publication Critical patent/EP0177796B1/fr
Expired 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1226—Accessories for subsequent treating or working cast stock in situ for straightening strands

Definitions

  • the invention relates to a method for guiding and straightening a casting strand in the straightening and outlet area of a continuous sheet casting installation, wherein oppositely arranged rollers are held at a distance corresponding to the casting format by a spring force against the ferrostatic pressure.
  • the invention relates to a device for performing the method.
  • a movable roller crossbeam is held in a position corresponding to the format in relation to a stationary roller crossbeam by disc springs against the ferrostatic pressure.
  • the casting strand can have areas of increased strength, in particular at the beginning and end, due to greater cooling. If the adjustment crossbar is pressed on by an area of increased strength, the steep spring characteristic leads to a strong increase in force. This leads to jamming of the casting strand and overloading of individual rolls, particularly in the straightening and outlet area of the continuous casting plant. If the jamming leads to a standstill of the outfeed, the plate springs must be compressed further by an additional force and the movable roller crossbar raised to relieve the load.
  • the object of the invention is to provide a method and a device for guiding and straightening a casting strand, jamming due to casting strand regions of increased strength being avoided and the roller load being considerably reduced.
  • the object is achieved according to the invention in that a cast strand region of increased strength is traced away and when it passes between the opposite rollers the respective spring force is reduced by a lower additional force.
  • a control system for carrying out the method consists of a continuous casting process computer, a path and control computer and a hydraulic control with connected hydraulic power devices.
  • the casting sequence data represented by the continuous casting process computer in particular about casting strand areas of increased strength, are passed to the sequence and control computer, which transmits signals to the hydraulic power devices to the hydraulic control system in accordance with the continuous conveying.
  • 1 consists of a continuous casting process computer 1, a path and control computer 2 and a hydraulic control 3, from which hydraulic power devices 4 are applied by strand guiding elements 5 when passing through a casting strand region of increased strength.
  • each hollow column 11 there is a spring sleeve 13, the bottom part 14 of which is fastened to the fixed crossbar 7 by means of bolts 15.
  • a tie rod 16 is clamped by means of plate springs 17. The tie rod 16 is guided in the base piece 14 and in an upper sleeve cover 18.
  • Spindle lifting elements 19 are arranged on the adjustment crossmember 9, the spindles of which are connected to a head 22 fastened to the tie rod 16 via a fork piece 20 and a bolt 21.
  • a hydraulic nut 23 is arranged between the upper sleeve cover 18 and the head 22.
  • a tie rod 24 is clamped within a spring sleeve 27 by means of two helical springs 25, 26 acting in parallel.
  • Each coil spring 25, 26 acts within the Spring sleeve 27 against its own abutment surface 28 or 29.
  • a base piece 30 of the spring sleeve 27 is designed as a hydraulic cylinder, the piston 31 of which acts against the tie rod 24 when acted upon.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Claims (5)

1. Procédé pour le guidage et le dressage d'une barre coulée, dans la zone de dressage et de sortie d'une installation de coulée continue coudée, des galets agencés l'un en face de l'autre étant maintenus par une force de ressort contre la pression ferrostatique de la barre coulée à une distance correspondant à la dimension de coulée, caractérisé en ce qu'on suit le déplacement d'une zone de barre coulée de résistance plus élevée et en ce qu'on réduit la force de ressort correspondante par une force supplémentaire moins importante lors du passage de celle-ci entre les galets opposés.
. 2. Système de commande pour la mise en oeuvre du procédé selon la revendication 1 caractérisé par un calculateur relatif au processus de coulée continue (1), un calculateur de surveillance du déplacement et de commande (2) et une commande hydraulique (3) comportant des organes de transmission de force y raccordés (4).
3. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, dans lequel des galets (6, 8) sont logés par tronçon l'un en face de l'autre, respectivement sur un support fixe (7) et sur un support mobile (9) qui sont maintenus à une distance qui correspond à la dimension de coulée, par des tirants d'ancrage (16) soumis à l'effet de ressorts comprimés (17) à l'intérieur de douilles (13). des organes hydrauliques de transmission de force étant associés auxdits tirants d'ancrage, caractérisé en ce qu'un écrou hydraulique (23) est agencé entre un couvercle de douille (18) et une tête de tirant (22).
4. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, dans lequel des galets (6, 8) sont logés par tronçon l'un en face de l'autre, respectivement sur un support fixe (7) et sur un support mobile (9) qui sont maintenus à une distance qui correspond à la dimension de coulée, par des tirants d'ancrage (24) soumis à l'effet de ressorts comprimés (25, 26) à l'intérieur de douilles (27), des organes hydrauliques de transmission de force étant associés auxdits tirants d'ancrage, caractérisé en ce qu'une pièce de fond (30) de la douille à ressorts (27) consiste en un vérin hydraulique dont le piston (31) est orienté vers le tirant d'ancrage (25).
5. Dispositif selon la revendication 3 ou 4 caractérisé en ce que deux ressorts hélicoïdaux (25, 26) sont agencés sur le tirant d'ancrage (24), à l'intérieur de la douille à ressorts (27), ressorts hélicoïdaux auxquels chaque fois une surface d'appui (28, 29) propre est associée à l'intérieur de la douille à ressorts.
EP85111577A 1984-10-10 1985-09-13 Procédé et dispositif pour guider et diriger une bande de coulée dans la région d'alignement et d'écoulement d'une installation courbée de coulée continue Expired EP0177796B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111577T ATE39864T1 (de) 1984-10-10 1985-09-13 Verfahren und vorrichtung zum fuehren und richten eines giessstranges im richt- und auslaufbereich einer bogenstranggiessanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3437178 1984-10-10
DE19843437178 DE3437178A1 (de) 1984-10-10 1984-10-10 Verfahren und vorrichtung zum fuehren und richten eines giessstranges im richt- und auslaufbereich einer bogenstranggiessanlage

Publications (3)

Publication Number Publication Date
EP0177796A2 EP0177796A2 (fr) 1986-04-16
EP0177796A3 EP0177796A3 (en) 1987-03-25
EP0177796B1 true EP0177796B1 (fr) 1989-01-11

Family

ID=6247572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111577A Expired EP0177796B1 (fr) 1984-10-10 1985-09-13 Procédé et dispositif pour guider et diriger une bande de coulée dans la région d'alignement et d'écoulement d'une installation courbée de coulée continue

Country Status (4)

Country Link
EP (1) EP0177796B1 (fr)
JP (1) JPS6192766A (fr)
AT (1) ATE39864T1 (fr)
DE (2) DE3437178A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002083340A2 (fr) * 2001-04-14 2002-10-24 Sms Demag Aktiengesellschaft Augmentation d'epaisseur de format pour des installations de coulee continue pour brames minces
US6612364B2 (en) 2000-03-10 2003-09-02 Demag Aktiengesellschaft Continuous casting method with soft reduction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02148758U (fr) * 1989-05-12 1990-12-18

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133144B2 (de) * 1971-07-03 1973-09-27 Concast Ag, Zuerich (Schweiz) Verfahren und Vorrichtung zum Ausfordern und Richten eines Stranges in einer Stranggiessanlage
US4056140A (en) * 1976-10-20 1977-11-01 United States Steel Corporation Method and mechanism for controlling forces in a continuous-casting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6612364B2 (en) 2000-03-10 2003-09-02 Demag Aktiengesellschaft Continuous casting method with soft reduction
WO2002083340A2 (fr) * 2001-04-14 2002-10-24 Sms Demag Aktiengesellschaft Augmentation d'epaisseur de format pour des installations de coulee continue pour brames minces
WO2002083340A3 (fr) * 2001-04-14 2002-12-19 Sms Demag Ag Augmentation d'epaisseur de format pour des installations de coulee continue pour brames minces

Also Published As

Publication number Publication date
EP0177796A3 (en) 1987-03-25
EP0177796A2 (fr) 1986-04-16
DE3567392D1 (en) 1989-02-16
JPS6192766A (ja) 1986-05-10
DE3437178A1 (de) 1986-04-10
ATE39864T1 (de) 1989-01-15

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