WO1999036211A1 - Procede et dispositif pour la coulee continue de metaux - Google Patents

Procede et dispositif pour la coulee continue de metaux Download PDF

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Publication number
WO1999036211A1
WO1999036211A1 PCT/DE1998/003798 DE9803798W WO9936211A1 WO 1999036211 A1 WO1999036211 A1 WO 1999036211A1 DE 9803798 W DE9803798 W DE 9803798W WO 9936211 A1 WO9936211 A1 WO 9936211A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
narrow side
area
continuous casting
narrow
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.)
Ceased
Application number
PCT/DE1998/003798
Other languages
German (de)
English (en)
Inventor
Joachim SCHÖNBECK
Jan Vollrath
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.)
Vodafone GmbH
SMS Siemag AG
Original Assignee
Mannesmann AG
SMS Demag 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 Mannesmann AG, SMS Demag AG filed Critical Mannesmann AG
Priority to AU25104/99A priority Critical patent/AU2510499A/en
Priority to EP98966811A priority patent/EP1047515A1/fr
Publication of WO1999036211A1 publication Critical patent/WO1999036211A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 process for the continuous casting of metals, in particular thin slabs of steel, in a stationary mold with two opposite broad side walls which have a funnel-shaped opening in the direction of the mold inlet and in the strand withdrawal direction over at least part of the mold height to the thickness of the strand to be cast converge, and two narrow side strips clamped between the broad sides, and a continuous casting mold to carry out the process.
  • Each narrow side wall has a V-shaped recess into which a plate of a corresponding shape made of boron nitride is inserted, the plate starting from the upper edge of the mold with a bulge-shaped thickening which extends into the casting cross-section and extends up to below the casting level in the Mold is enough.
  • the walls of the narrow side strips facing the mold cavity are flat.
  • DE 35 01 422 A1 discloses a continuous mold for a continuous casting plant for casting a thin strand, in which the cross section of the inlet end in a second direction perpendicular to the first direction has a smaller dimension than the cross section of the outlet end in this second direction.
  • the side walls of the continuous mold have mutually opposite in the first direction, converging in the direction of passage and in the second
  • the bath surface in particular in the area of the narrow side strips, is enlarged and, at the same time, the shape of the narrow-strand side of the slab is influenced in such a way that trouble-free casting is possible.
  • This enlargement in the area of the narrow sides has the advantage that reliable lubrication is achieved especially in the narrow side area of the mold, which is particularly susceptible to insufficient lubrication.
  • a correspondingly larger amount of lubricant is required per free surface of the liquid metal.
  • continuous casting molds have a length in the direction of the broadside distance, which remains constant according to the respective contour except for the natural shrinkage of the slabs.
  • the broadside distance changes significantly. This is achieved according to the invention by the inner wall of the
  • Narrow side strips are designed in an arc or wave shape.
  • the trough is designed in such a way that a chord corresponding to the broadside distance in the area of the narrow side bars is one
  • a wedge of less heat dissipation is provided for the narrow side strips in the casting area of the mold.
  • the wedge has a trapezoidal shape, the trapezoidal tip has a minimum width of 2 mm. Furthermore, below the trapezoidal tip, special influence is exerted on the heat dissipation of the mold in this area.
  • Figure 1 shows a basic structure of the mold with the shape of
  • the wedge 26 consists of a refractory material, for example boron nitride.
  • the relatively blunt tip has the advantage that, on the one hand, the service life of the wedge is increased and, on the other hand, channels 52 connected to a cooling device 51 (not shown) can be introduced in the narrow side bar 21 below this tip.
  • Specifiable cooling parameters actively influence the temperature and thus the behavior of the slab shell at this point.
  • a trough-shaped bulge 32 is provided in addition to FIG. 1 in the casting area 16 of the mold in the broad sides 31. In this bulge
  • the wide side distance d has the maximum size d M in the area of the trough-shaped bulge 32, in the area of the narrow side strips 21 it has the size d E at the mold inlet 11 and it decreases over the mold height h to the wide side distance at the mold outlet 14 to d A.
  • FIG. 3 also shows a square bath surface with the edge length d E at the mold inlet 11 and a square surface with the edge length d A at the mold outlet 14.
  • the ratio d E / d A is between 1.05 to 2.0

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif pour la coulée continue de métaux, en particulier de brames minces d'acier, dans une lingotière fixe qui présente deux parois latérales larges en vis-à-vis qui présentent, dans la zone d'entrée de coulée, une ouverture en forme d'entonnoir, et convergent, dans le sens de sortie de la brame, en partant de l'entrée de la lingotière, au moins sur une partie de la hauteur de la lingotière, pour former un espace correspondant à l'épaisseur de la brame à couler. Cette lingotière comporte également deux entretoises qui forment les côtés étroits et sont bloquées entre les côtés longs, ainsi qu'un tube de coulée plongeur par l'intermédiaire duquel le métal liquide est introduit dans la lingotière. Sur la surface libre du métal liquide se trouvant dans la lingotière, à l'extérieur du tube plongeur de coulée, est appliqué un lubrifiant en une quantité satisfaisant au besoin de lubrification actuel de la brame, à des vitesses de coulée supérieures à 4 m/min, les surfaces des côtés étroits de la croûte des brames étant déformées de sorte que leur longueur horizontale ne soit pas modifiée d'une valeur supérieure à cinq fois la grandeur de retrait naturel de la brame.
PCT/DE1998/003798 1998-01-15 1998-12-22 Procede et dispositif pour la coulee continue de metaux Ceased WO1999036211A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU25104/99A AU2510499A (en) 1998-01-15 1998-12-22 Continuous metal casting method and device
EP98966811A EP1047515A1 (fr) 1998-01-15 1998-12-22 Procede et dispositif pour la coulee continue de metaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19801822.3 1998-01-15
DE1998101822 DE19801822C1 (de) 1998-01-15 1998-01-15 Verfahren und Vorrichtung zum Stranggießen von Metallen

Publications (1)

Publication Number Publication Date
WO1999036211A1 true WO1999036211A1 (fr) 1999-07-22

Family

ID=7855038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/003798 Ceased WO1999036211A1 (fr) 1998-01-15 1998-12-22 Procede et dispositif pour la coulee continue de metaux

Country Status (5)

Country Link
EP (1) EP1047515A1 (fr)
AU (1) AU2510499A (fr)
DE (1) DE19801822C1 (fr)
TW (1) TW379149B (fr)
WO (1) WO1999036211A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600116859A1 (it) * 2016-11-18 2018-05-18 Danieli Off Mecc Dispositivo di colata continua per bramme sottili

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501422A1 (de) * 1984-02-16 1985-08-22 Voest-Alpine Ag, Linz Durchlaufkokille fuer eine stranggiessanlage
DE4138642A1 (de) * 1991-11-25 1993-05-27 Schloemann Siemag Ag Durchlaufkokille zum giessen von straengen mit einer maximalen dicke von 80 mm
US5279354A (en) * 1990-11-30 1994-01-18 Acutus Industries, Inc. Method of continuous casting with changing of slab width
DE4337399A1 (de) * 1993-10-26 1995-04-27 Mannesmann Ag Stranggießkokille für die Erzeugung von dünnen Brammen, Platten oder Blechen aus Stahl
WO1995020445A1 (fr) * 1994-01-28 1995-08-03 Mannesmann Ag Installation de coulee continue et procede de production de brames minces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640525C2 (de) * 1986-11-27 1996-02-15 Schloemann Siemag Ag Kokille zum Stranggießen von Stahlband

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501422A1 (de) * 1984-02-16 1985-08-22 Voest-Alpine Ag, Linz Durchlaufkokille fuer eine stranggiessanlage
US5279354A (en) * 1990-11-30 1994-01-18 Acutus Industries, Inc. Method of continuous casting with changing of slab width
DE4138642A1 (de) * 1991-11-25 1993-05-27 Schloemann Siemag Ag Durchlaufkokille zum giessen von straengen mit einer maximalen dicke von 80 mm
DE4337399A1 (de) * 1993-10-26 1995-04-27 Mannesmann Ag Stranggießkokille für die Erzeugung von dünnen Brammen, Platten oder Blechen aus Stahl
WO1995020445A1 (fr) * 1994-01-28 1995-08-03 Mannesmann Ag Installation de coulee continue et procede de production de brames minces

Also Published As

Publication number Publication date
AU2510499A (en) 1999-08-02
DE19801822C1 (de) 1999-03-18
EP1047515A1 (fr) 2000-11-02
TW379149B (en) 2000-01-11

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