EP0404974B2 - Lingotière de coulée continue pour la coulée de bande verticale de métaux - Google Patents

Lingotière de coulée continue pour la coulée de bande verticale de métaux Download PDF

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Publication number
EP0404974B2
EP0404974B2 EP89111727A EP89111727A EP0404974B2 EP 0404974 B2 EP0404974 B2 EP 0404974B2 EP 89111727 A EP89111727 A EP 89111727A EP 89111727 A EP89111727 A EP 89111727A EP 0404974 B2 EP0404974 B2 EP 0404974B2
Authority
EP
European Patent Office
Prior art keywords
mould
continuous casting
insert
casting ingot
ingot mould
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
EP89111727A
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German (de)
English (en)
Other versions
EP0404974A1 (fr
EP0404974B1 (fr
Inventor
Adolf Klein
Hilmar R. Dr. Müller
Joachim Rabenschlag
Jörg Dr. Steeb
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.)
Wieland Werke AG
Original Assignee
Wieland Werke 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
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Application filed by Wieland Werke AG filed Critical Wieland Werke AG
Priority to EP89111727A priority Critical patent/EP0404974B2/fr
Priority to DE8989111727T priority patent/DE58902716D1/de
Priority to US07/545,354 priority patent/US5095970A/en
Priority to CA002019958A priority patent/CA2019958C/fr
Publication of EP0404974A1 publication Critical patent/EP0404974A1/fr
Application granted granted Critical
Publication of EP0404974B1 publication Critical patent/EP0404974B1/fr
Publication of EP0404974B2 publication Critical patent/EP0404974B2/fr
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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
    • 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
    • B22D11/055—Cooling the moulds

Definitions

  • the invention relates to a continuous casting mold and a method for the vertical continuous casting of metals according to the preambles of claims 1 and 15.
  • Such a mold or such a method are generally known.
  • Continuous casting molds are used, the mold insert of which is surrounded by a cooling device.
  • the invention is therefore based on the object of designing a continuous casting mold of the type mentioned in such a way that uniform cooling of the strand is ensured.
  • the object is achieved in that the cooling device is arranged only on the broad sides of the mold insert and extends - starting from the lower mold edge UK - to about 55-75% of the height of the broad side and that the narrow sides are uncooled.
  • the cooling device extends approximately over the lower two thirds of the height of the broad sides.
  • a two-channel cooling system is preferably assigned to each broad side of the mold insert. It is recommended that a lower, horizontally running supply channel for the cooling liquid is connected to an upper, also horizontally running discharge channel via bores in the channel walls facing the mold insert and vertical cooling channels in the outer wall of the broad side of the mold insert.
  • the mold insert For reasons of simpler manufacture, it is preferred to form the mold insert from two plates forming the broad side and two plates forming the narrow side. Sheets made of metallic materials are used.
  • a horizontal separating slot is preferably arranged in the outer wall of the broad side of the mold insert.
  • a bar made of a non-metallic material with low thermal conductivity and a relatively large coefficient of expansion is recommended.
  • the components of the uncooled area B are preferably pressed into the components of the cooled area B K.
  • the components of the uncooled area B are formed by four plates or two L-shapes.
  • the invention also relates to a method for strip casting using a continuous casting mold according to the invention.
  • the process is characterized in that the casting level is kept approximately within the upper, uncooled third of the mold during casting.
  • the mold level is preferably held at a height of approximately 20-50 mm below the upper mold edge OK.
  • the continuous casting mold for vertical strip casting essentially consists of a metallic mold insert 1 (hereinafter referred to briefly as "insert") and a cooling device 2.
  • the insert 1 is composed of plates 3 and 4, each of which has the broad sides or narrow sides of the insert 1.
  • the plates 3, 4 are held together by bolts, not shown. The result is a pouring opening 5 of rectangular cross section for receiving the molten metal.
  • the plates 3, 4 can be made of copper, for example, further options are discussed below.
  • the cooling device 2 is arranged exclusively on the broad sides of the insert 1, in such a way that it extends - starting from the lower mold edge UK - to approximately 55-75% of the height of the broad sides, preferably over the lower two thirds of the height of the broad sides .
  • the remaining upper area of the broad sides (ie preferably the upper third) and the narrow sides of the insert 1 remain uncooled.
  • the lower, cooled area of the broad sides is identified in FIG. 1 with B K , the upper, uncooled area with B.
  • the support of the insert 1 shown in this area B is provided only for reasons of stability.
  • the cooling device 2 consists of two identically constructed two-channel cooling systems, which are arranged on the broad sides (plates 3) of the insert 1, namely the cooling liquid (in particular water) is supplied through a lower, horizontal supply channel 6 and through an upper, horizontal discharge channel 7 derived. From the channel 6, the coolant passes through the use of 1-pointing holes 8 in the channel wall 6 ', via vertical cooling channels 9 in the outer wall of the plate 3 and through the insert 1 facing holes 10 in the channel wall 7 'in the channel 7. The direction of flow of the cooling liquid is indicated by arrows. In FIG. 3, the arrows indicate the inflow of the cooling liquid to the channel 6 and the outflow of the cooling liquid from the channel 7.
  • a horizontal separating slot 11 is arranged on the outside of the plates 3.
  • the continuous casting mold is supplied with molten metal from a distributor device (not shown).
  • the metal strand 12 which is formed is discharged through schematically indicated extraction elements 13.
  • the mold level 14 is preferably held in the upper (uncooled) third of the continuous casting mold.
  • the continuous casting mold can be followed by a secondary cooling 15 with flat jet nozzles 16.
  • Design example Brass strips (CuZn30) measuring 25 x 400 mm were cast using a continuous casting mold of the type described.
  • brass melt heated to approximately 1050 ° C. was fed to a mold insert 1 consisting of copper plates.
  • the dimensions of the pouring opening were 25 x 400 x 360 mm.
  • the cooling was carried out by means of water through a cooling device 2, which extended over 250 mm (cooled area B K ), and through downstream secondary cooling 15 with flat jet nozzles 16.
  • the mold level 14 was held in the upper (uncooled) third of the mold, about 20-50 mm below the upper mold edge OK.
  • the take-off speed was approximately 500-1000 mm / min.

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

Claims (11)

  1. Lingotière de coulée continue pour la coulée continue verticale de métaux, notamment pour la coulée en bandes de cuivre et d'alliages de cuivre, dans laquelle un insert de lingotière (1) a côtés étroits (4) non refroidis, qui présente une ouverture de coulée (5) de section transversale rectangulaire, est équipé d'un dispositif de refroidissement extérieur (2) exclusivement sur les côtés de grande largeur (3), caractérisée en ce que l'insert de lingotière (1) de la lingotière constituée de manière indépendante du four consiste en matériaux métalliques et en ce que le dispositif de refroidissement (2) s'étend, à partir du bord inférieur UK de la lingotière, jusqu'à environ 55 à 75% de la hauteur des côtés de grande largeur (3).
  2. Lingotière de coulée continue selon la revendication 1, caractérisée en ce que le dispositif de refroidissement (2) s'étend environ sur les deux tiers inférieurs de la hauteur des côtés de grande largeur (3).
  3. Lingotière de coulée continue selon la revendication 1 ou 2, caractérisée en ce que, à chaque côté de grande largeur (3) de l'insert de lingotière (1), est associé un système de refroidissement à deux canaux (6, 7).
  4. Lingotière de coulée continue selon la revendication 3, caractérisée en ce que, pour chaque système de refroidissement, un canal d'alimentation inférieur (6) s'étendant horizontalement et destiné au liquide de refroidissement est en communication avec un canal d'évacuation (7) supérieur s'étendant également horizontalement, par l'intermédiaire de perçages (8, 10) dirigés vers l'insert de lingotière (1) et réalisés dans les parois de canal (6', 7') et par l'intermédiaire de canaux verticaux de refroidissement (9) dans la paroi extérieure du côté de grande largeur (3) de l'insert de lingotière (1).
  5. Lingotière de coulée continue selon l'une ou plusieurs des revendications 1 à 4, caractérisée en ce que l'insert de lingotière (1) est constitué de deux plaques (3) formant les côtés de grande largeur et de deux plaques (4) formant les côtés étroits.
  6. Lingotière de coulée continue selon la revendication 5, caractérisée en ce que, dans la paroi extérieure de chaque côté de grande largeur (3) de l'insert de lingotière (1), est disposée une fente de séparation horizontale (11) qui sépare partiellement la zone supérieure B non refroidie de la zone inférieure BK refroidie.
  7. Lingotière de coulée continue selon la revendication 6, caractérisée en ce que, dans la fente de séparation horizontale (11), est emmanchée une barre en un matériau non métallique à faible conductibilité thermique et à coefficient de dilatation relativement élevé.
  8. Lingotière de coulée continue selon une ou plusieurs des revendications 1 à 4, caractérisée en ce que l'insert de lingotière (1) est constitué de deux moules en forme de "L".
  9. Lingotière de coulée continue selon une ou plusieurs des revendications 1 à 8, caractérisée en ce qu'en aval de la lingotière, dans la direction d'extraction de la barre (12), est disposé un système de refroidissement secondaire (15) comportant des buses à jet plat (16).
  10. Procédé pour la coulée de bandes par la mise en oeuvre d'une lingotière de coulée continue selon une ou plusieurs des revendications 1 à 9, caractérisé en ce que le niveau de coulée (14) est maintenu pendant la coulée sensiblement à l'intérieur du tiers supérieur, non refroidi, de la lingotière.
  11. Procédé selon la revendication 10, caractérisé en ce que le niveau de coulée (14) est maintenu à une hauteur située à environ 20 - 50 mm sous le bord supérieur OK de la lingotière.
EP89111727A 1989-06-28 1989-06-28 Lingotière de coulée continue pour la coulée de bande verticale de métaux Expired - Lifetime EP0404974B2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP89111727A EP0404974B2 (fr) 1989-06-28 1989-06-28 Lingotière de coulée continue pour la coulée de bande verticale de métaux
DE8989111727T DE58902716D1 (de) 1989-06-28 1989-06-28 Stranggiesskokille zum senkrechten bandgiessen von metallen.
US07/545,354 US5095970A (en) 1989-06-28 1990-06-27 Continuous-casting mold for vertically casting metal strip
CA002019958A CA2019958C (fr) 1989-06-28 1990-06-27 Moule de coulee continue de feuillards metalliques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89111727A EP0404974B2 (fr) 1989-06-28 1989-06-28 Lingotière de coulée continue pour la coulée de bande verticale de métaux

Publications (3)

Publication Number Publication Date
EP0404974A1 EP0404974A1 (fr) 1991-01-02
EP0404974B1 EP0404974B1 (fr) 1992-11-11
EP0404974B2 true EP0404974B2 (fr) 1995-12-13

Family

ID=8201540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111727A Expired - Lifetime EP0404974B2 (fr) 1989-06-28 1989-06-28 Lingotière de coulée continue pour la coulée de bande verticale de métaux

Country Status (4)

Country Link
US (1) US5095970A (fr)
EP (1) EP0404974B2 (fr)
CA (1) CA2019958C (fr)
DE (1) DE58902716D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0686445B1 (fr) * 1994-06-06 2000-08-16 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé de régulation de la déformation des faces latérales d'une lingotière, et lingotière pour la coulée continue
DE19802809A1 (de) * 1998-01-27 1999-07-29 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
AT409227B (de) * 1998-08-17 2002-06-25 Voest Alpine Ind Anlagen Verfahren und anlage zur herstellung von warmgewalztem stahlband aus einer stahlschmelze

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU29617A1 (fr) * 1947-11-06
GB1381977A (en) * 1971-02-11 1975-01-29 Rossi I Apparatus for the continuous casting of metal
JPS5274529A (en) * 1975-12-18 1977-06-22 Ono Atsumi Mould for continuous casting
DE2847581A1 (de) * 1978-11-02 1980-05-14 Krupp Gmbh Durchlaufkokille
SU952422A1 (ru) * 1980-12-22 1982-08-23 Могилевское Отделение Физико-Технического Института Ан Бсср Кристаллизатор
AT379530B (de) * 1983-10-13 1986-01-27 Voest Alpine Ag Horizontalstranggiesskokille
DE3528649A1 (de) * 1985-08-09 1987-02-19 Schloemann Siemag Ag Vertikal- oder bogenstranggiessanlage fuer stahl
DE3640525C2 (de) * 1986-11-27 1996-02-15 Schloemann Siemag Ag Kokille zum Stranggießen von Stahlband
JPH01143742A (ja) * 1987-11-27 1989-06-06 Nkk Corp 連続鋳造用鋳型

Also Published As

Publication number Publication date
CA2019958A1 (fr) 1990-12-28
EP0404974A1 (fr) 1991-01-02
DE58902716D1 (de) 1992-12-17
US5095970A (en) 1992-03-17
CA2019958C (fr) 1996-11-12
EP0404974B1 (fr) 1992-11-11

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