EP0130887B1 - Dispositif de support d'un produit coulé en sortie d'une lingotière pour coulée continueet procédé de reglage du dispositif - Google Patents

Dispositif de support d'un produit coulé en sortie d'une lingotière pour coulée continueet procédé de reglage du dispositif Download PDF

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Publication number
EP0130887B1
EP0130887B1 EP84401293A EP84401293A EP0130887B1 EP 0130887 B1 EP0130887 B1 EP 0130887B1 EP 84401293 A EP84401293 A EP 84401293A EP 84401293 A EP84401293 A EP 84401293A EP 0130887 B1 EP0130887 B1 EP 0130887B1
Authority
EP
European Patent Office
Prior art keywords
product
supporting
ingot mould
sides
small
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
EP84401293A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0130887A1 (fr
Inventor
Raymond Vial
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.)
Clecim SAS
Original Assignee
Clecim SAS
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 Clecim SAS filed Critical Clecim SAS
Priority to AT84401293T priority Critical patent/ATE39863T1/de
Publication of EP0130887A1 publication Critical patent/EP0130887A1/fr
Application granted granted Critical
Publication of EP0130887B1 publication Critical patent/EP0130887B1/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
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • B22D11/1243—Accessories for subsequent treating or working cast stock in situ for cooling by using cooling grids or cooling plates
    • 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
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing

Definitions

  • the present invention relates to a device for supporting a continuously cast product and to a method for adjusting the width of said device according to the preambles of claims 1, respectively 3.
  • a continuous casting machine In a machine continuously casting a product of rectangular section, one generally has to support, in addition to the long sides, also the short sides of the cast product, at least in the zone close to the outlet of the mold, where the solidified part offers the less resistance to thrust due to ferrostatic pressure. Furthermore, a continuous casting machine must generally be able to pour products of different widths, so that it is necessary to provide thereon means making it possible to adjust the position of the support devices on the short sides.
  • the document FR-A-2,365,390 on which the preambles of claims 1 and 3 are based, describes a method making it possible to modify the position of the short sides of the mold to adjust the width of the product without stopping the casting, the height of liquid metal in the mold being kept constant throughout the operation.
  • complex devices are therefore usually provided which are therefore expensive in terms of manufacturing and maintenance cost to synchronize the movements of the support devices on the short sides of the product with the movements of the short sides of the mold.
  • the device according to the present invention does not have the drawbacks of these known devices. It in fact always ensures good contact with the cast product, and it makes it possible to refrain from using complex synchronization means, as was the case until now, in the case where the mold is adjustable in operation.
  • the invention therefore applies to a device for supporting a product cast in a continuous casting installation comprising an ingot mold limited by two long sides and two short sides for the formation of a product with rectangular section consisting of a core. liquid surrounded by a solidified crust and means for moving the short sides of the mold to modify the width of the cast product, the height of liquid metal in the mold and, consequently, the ferrostatic pressure at each point remaining constant throughout the operation, and a device for supporting the product at the outlet of the mold, comprising four support plates, respectively, of the large and short sides of the product and means of applying said support plates against the sides of the product, taking support on a fixed frame.
  • the means for applying the support plates on the short sides consist, for each plate, of at least one double-acting cylinder bearing on the fixed frame and comprising two inlets to which the same pressure is applied of fluid remaining constant throughout the variation process and determined as a function of the height of the liquid column at this point and of the surface of the small side supported so that the support plate is kept pressed against the product with just sufficient force to balance the ferrostatic pressure, and moves under the action of the solidified crust following the movement of the short sides of the mold.
  • this method is characterized by the characteristics mentioned in the characterizing part of claim 3.
  • the invention is based on the remark that the lateral pressure exerted at a point by the still liquid steel depends only on the height of the liquid column at this point, and not on the width of the product at this point, and remains therefore constant throughout the variation process. Under these conditions, it appeared that, after all, it was not necessary, as one would be tempted to do, to synchronize the position of the support members with the position of the short sides of the mold: it suffices simply apply these support members against the cast product with a force just sufficient to overcome the ferrostatic pressure. This operating mode is made possible by the presence of the crust of solidified product which surrounds the liquid steel core formed by the product at its exit from the ingot mold.
  • the solidified part 2 is supported by four wear plates 3, each fixed to a support plate 4. Also conventionally, these plates and 4 are provided with means making it possible to cool the product poured by spraying with water. .
  • these conventional cooling means consist of the fact that the plates 3 are pierced with a large number of cells 30 regularly distributed, while the plates 4 are pierced with the same number of small channels 40, opening out each in the center of an avola 30, these channels 40 being supplied with spray water by means of long distribution channels 41, pierced in the thickness of the plates 4 perpendicular to the channels 40 as shown, and of pipes 42 of water supply.
  • the plates 4 which relate to the short sides of the cast slab are each supported by the rod of a double-acting cylinder 5 fixed on the frame 5 of the machine.
  • the fluid pressure applied to the inlets 7 of this cylinder is determined, by a simple calculation taking into account the height of the liquid column at this location and the small side surface that is supported there, to balance the ferrostatic pressure in this location.
  • this plate 4 on the short side remains substantially vertical, this plate has a second fixing point 8 connected elastically, using a rod 9 and a spring 10, to a part 11 fixed on the rod 12 of the jack 5.
  • the plates 4 are applied against the sides of the mannequin, then on the product when the mannequin is removed and the operation is consequently started.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Moulding By Coating Moulds (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Testing Of Engines (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP84401293A 1983-06-24 1984-06-21 Dispositif de support d'un produit coulé en sortie d'une lingotière pour coulée continueet procédé de reglage du dispositif Expired EP0130887B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84401293T ATE39863T1 (de) 1983-06-24 1984-06-21 Einrichtung zur stuetzung eines aus einer stranggiesskokille austretenden stranges und verfahren zur verstellung der einrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8310706A FR2547753B1 (fr) 1983-06-24 1983-06-24 Dispositif de support de produit coule en sortie d'une lingotiere pour coulee continue
FR8310706 1983-06-24

Publications (2)

Publication Number Publication Date
EP0130887A1 EP0130887A1 (fr) 1985-01-09
EP0130887B1 true EP0130887B1 (fr) 1989-01-11

Family

ID=9290273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401293A Expired EP0130887B1 (fr) 1983-06-24 1984-06-21 Dispositif de support d'un produit coulé en sortie d'une lingotière pour coulée continueet procédé de reglage du dispositif

Country Status (7)

Country Link
EP (1) EP0130887B1 (enrdf_load_stackoverflow)
AT (1) ATE39863T1 (enrdf_load_stackoverflow)
BR (1) BR8402989A (enrdf_load_stackoverflow)
CA (1) CA1237268A (enrdf_load_stackoverflow)
DE (1) DE3476031D1 (enrdf_load_stackoverflow)
FR (1) FR2547753B1 (enrdf_load_stackoverflow)
IN (1) IN159890B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612819A1 (fr) * 1987-03-23 1988-09-30 Fives Cail Babcock Dispositif pour soutenir et refroidir un produit de coulee continue a sa sortie de la lingotiere
DE4138740A1 (de) * 1991-11-26 1993-05-27 Schloemann Siemag Ag Verfahren und vorrichtung zum stranggiessen von brammen oder bloecken

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762513A (en) * 1954-02-17 1956-11-28 Boehler & Co Ag Geb Improvements in continuous casting installations
FR1191063A (fr) * 1958-02-04 1959-10-16 Schloemann Ag Coquille de coulage sous pression en plusieurs éléments
BE754771A (fr) * 1969-08-19 1971-01-18 Mannesmann Ag Appareil pour la coulee continue de barres d'acier rectangulaires

Also Published As

Publication number Publication date
ATE39863T1 (de) 1989-01-15
IN159890B (enrdf_load_stackoverflow) 1987-06-13
EP0130887A1 (fr) 1985-01-09
DE3476031D1 (en) 1989-02-16
FR2547753A1 (fr) 1984-12-28
BR8402989A (pt) 1985-05-28
FR2547753B1 (fr) 1986-09-26
CA1237268A (fr) 1988-05-31

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