EP2321075B1 - Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion - Google Patents

Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion Download PDF

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Publication number
EP2321075B1
EP2321075B1 EP09777692.6A EP09777692A EP2321075B1 EP 2321075 B1 EP2321075 B1 EP 2321075B1 EP 09777692 A EP09777692 A EP 09777692A EP 2321075 B1 EP2321075 B1 EP 2321075B1
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EP
European Patent Office
Prior art keywords
channels
mold
continuous casting
copper plates
plates
Prior art date
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Active
Application number
EP09777692.6A
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German (de)
English (en)
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EP2321075A1 (fr
Inventor
Jörn HOFFMEISTER
Michael Dreis
Dirk Letzel
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 Group GmbH
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SMS Group GmbH
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Publication of EP2321075A1 publication Critical patent/EP2321075A1/fr
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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
    • B22D11/055—Cooling the moulds

Definitions

  • the invention relates to a continuous casting mold for continuously casting a metal strand, in particular a steel strand, each having opposite broad side walls and narrow side walls, wherein at least the broad side walls are equipped with cooling channels.
  • Continuous casting molds are formed, for example, as slab molds, curved molds or Vorblockkokillen.
  • Continuous casting molds for continuous casting of a metal strand in particular a steel strand, are used as slab molds.
  • the molds have mutually opposite broad side walls and clamped between the broad side walls and along the wide side walls transversely to the casting direction arranged, opposite, in the casting direction wedge-shaped narrowing or parallel to each other arranged narrow side walls, wherein the broad side walls have a funnel-shaped or parallel-walled Eing man Scheme extending in the casting direction extends to Kokillenende.
  • the broad sides of the mold can be arranged parallel to each other.
  • the narrow side walls are arranged interchangeable according to the adjusted thickness of the casting to be cast metal strand.
  • WO 03 106073 A2 is a continuous casting mold for liquid metals, in particular for liquid steel, with surrounding of water boxes, the casting cross-section forming parallel, opposing insert plates made of steel and the steel insert plates adjacent cartridge-like copper plates known that limit the casting cavity.
  • end plates for fixing the G confusestrangschreib and / or the G fauxstrangbreite are inserted, which complete the casting cavity at the end faces.
  • coolant passages connecting the inlet to an outlet are provided at the interfaces with the steel insert plates.
  • the thickness of the copper plates in each case between the cooling medium and the copper plate hot side across the width and / or the height is different. As a result, the hot-side temperature can be made uniform over the width of the mold and the significant temperature drop over the mold height below the G fauxador Kunststoffs can be reduced.
  • WO 03/092931 and WO 98/20997 are introduced by introducing different filler pieces in the cooling channels, the cross sections such that correspond to the desired cooling effect.
  • FIG. 1 shows such a curved mold in longitudinal section, relative to the casting direction.
  • a casting cavity 3 from which liquid metal is poured out in the direction of an arrow y.
  • the copper plates 1, 2 are both slightly bent.
  • the copper plate 1 is mounted on the outside of the mold and fixed. On its, the casting cavity 3 facing inside it is bent with a radius R a , while the serving to adjust the thickness of the slab to be cast, mounted on the outside of the mold copper plate 2 is bent on its inside with a radius R i .
  • Both copper plates 1, 2 are equipped with cooling channels 4 and 5, through which a cooling liquid passes.
  • the cooling channels 4, 5 each have a straight course. Their distance from an inner surface 6 or 7 of the copper plate thus changes with height.
  • the distances s a and s i which have the bottoms of the cooling channels with respect to the hot sides of the copper plates 1, 2, are different depending on the height. The following applies: si ⁇ sa.
  • an optimized design of the wall thickness of the casting cavity bounding copper plates is sought, for example, in a curved mold inner and outer copper plates over the entire length from top to bottom with a uniform copper wall thickness and thus a more uniform cooling effect can be provided.
  • a better product quality of the slabs or billets to be cast with this mold and an improvement of the casting process itself is achieved.
  • Both the wide side walls and the narrow side walls can be equipped with cooling channels.
  • the cooling channels are designed as grooves in the outer wall of the casting cavity adjacent plates, in particular of copper plates.
  • the adjacent to the casting cavity copper plates are provided on their outside with recesses, grooves, channels or the like., To allow the passage of a cooling liquid therethrough.
  • the copper plates are covered by further plates, ie cover plates, through which the recesses, grooves, channels, etc. are covered, so that they form closed conduits which have only an inlet and an outlet at the top and bottom, so that a cooling fluid can flow through them.
  • the cooling channels have the same distance to the casting cavity over their entire length; Alternatively, however, it may also be provided, for reasons of changing the heat transfer over the length of the plates, that the distance between the channels and the casting cavity changes in order to set a targeted cooling effect above the height of the mold plates. Also by a variation of the inner surface of the inserts, the channel cross section can be influenced.
  • the cooling channels In order to be able to set the desired heat transfer location-dependent, the cooling channels have widths and / or depths adapted to the cooling effect above the height of the plates.
  • a continuous casting mold ( Fig. 2a - 4 ) for continuous casting of a steel strand in the direction of an arrow y comprises a (not shown here) support frame for a solid broadside part with a mounted on the outside of the mold copper plate 8 and a (also not shown) support frame for the movable broadside part (lot side) with a
  • the copper plates 8, 9 form the broad side walls and are each at their hot sides 10 and 11, with which they adjoin a casting cavity 12 for receiving the molten metal, with a radius R a and a radius R i bent.
  • the copper plates 8, 9 have on their side facing away from the casting cavity 12 sides in each case a plurality in the vertical direction extending channels 13, which are each separated by narrow webs 14 from each other. At a distance of a plurality of channels 13 and an associated number of narrow webs 14 wide webs 15 are present, introduced into the holes 16.
  • the holes 16 are used for attachment of (not shown) outer plates or scaffolding parts, which give the copper plates 8, 9 the required stability and which are connected to the support frame.
  • the channels 13 On a plurality of the channels 13 are respectively inserts 17, 18 placed on the narrow webs 14, so that the channels 13 are separated from each other transversely to the casting direction. After the inserts 17, 18 are placed on the channels 13, the outer or cover plate with the copper plate 8, 9 are screwed through the holes 16.
  • the channels 13 on their, the hot sides 10, 11 facing the channel bottoms the same curvature R a and R i as the copper plates 8, 9 on the hot sides 10, 11.
  • R a + s (y) for the channels 13 in the outside copper plate 8
  • R i - s (y) for the channels 13 in the inside copper plate 9.
  • the channels 13 facing contours of the inserts 17, 18 extend in the same manner as that of the channel bottoms, so that the channels 13 at all altitudes of the copper plates 8, 9 have the same cross-section. This means that inner surfaces 19 of the channels 13 everywhere have the same distance to inner surfaces 20 of the inserts 17, 18.
  • the inserts 17, 18 consist either of a temperature-resistant plastic or of a metal, in particular of brass or stainless steel.
  • the width of the inserts 17, 18 is determined by a free space 21 (FIG. Fig. 3b ) between the webs 15th

Claims (2)

  1. Lingotière de coulée continue pour la coulée continue d'une barre métallique, comprenant des parois (8, 9) du grand côté, respectivement opposées l'une à l'autre, sous la forme de plaques de cuivre et des parois du petit côté ; dans laquelle au moins les parois (8, 9) du grand côté sont équipées de canaux de refroidissement (13) ; dans laquelle les plaques de cuivre (8, 9) sont incurvées avec un rayon Ra, respectivement avec un rayon Ri, sur leurs côtés chauds (10, 11) avec lesquels elles sont contiguës à une cavité de coulée (12) de la lingotière de coulée continue ; caractérisée en ce que, entre les bases des canaux de refroidissement (13) et la cavité de coulée, on prévoit une distance sous la forme d'une épaisseur de paroi s(y) des plaques en cuivre, qui varie en fonction de la hauteur y ; et les rayons de courbure des bases des canaux de refroidissement (13) dans la plaque en cuivre (8) du côté externe sont représentés par la fonction Ra+s(y) et dans la plaque en cuivre (9) du côté interne par la fonction Ri-s(y).
  2. Lingotière de coulée continue selon la revendication 1, caractérisée en ce que les canaux de refroidissement (13) sont réalisés sous la forme de rainures dans la paroi externe contre les plaques en cuivre (8, 9) contiguës à la cavité de coulée (12).
EP09777692.6A 2008-08-06 2009-08-06 Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion Active EP2321075B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008036541 2008-08-06
PCT/EP2009/005690 WO2010015399A1 (fr) 2008-08-06 2009-08-06 Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion

Publications (2)

Publication Number Publication Date
EP2321075A1 EP2321075A1 (fr) 2011-05-18
EP2321075B1 true EP2321075B1 (fr) 2018-07-11

Family

ID=41165545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09777692.6A Active EP2321075B1 (fr) 2008-08-06 2009-08-06 Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion

Country Status (3)

Country Link
EP (1) EP2321075B1 (fr)
CN (1) CN102112255B (fr)
WO (1) WO2010015399A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8767708B2 (en) 2010-12-30 2014-07-01 Motorola Mobility Llc Methods for cell search in synchronous interference limited channels
KR101695232B1 (ko) * 2012-06-27 2017-01-11 제이에프이 스틸 가부시키가이샤 연속 주조용 주형 및 강의 연속 주조 방법
DE102016124801B3 (de) * 2016-12-19 2017-12-14 Kme Germany Gmbh & Co. Kg Kokillenplatte und Kokille
DE102017211654A1 (de) 2017-07-07 2019-01-10 Sms Group Gmbh Seitenplatte einer Stranggießkokille
EP3626364B1 (fr) * 2018-09-18 2021-06-30 SMS Group GmbH Section de conduite et dispositif de lingotière dotée de la section de conduite
IT201900001035A1 (it) * 2019-01-24 2020-07-24 Danieli Off Mecc Lingottiera per colata continua
DE102022208478A1 (de) 2022-08-16 2024-02-22 Sms Group Gmbh Kupferplatte mit lokalen Intensivkühlzonen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1082988A (en) * 1964-12-22 1967-09-13 British Iron Steel Research Moulds
DE3526736C2 (de) * 1985-07-26 1994-08-25 Kabelmetal Ag Stranggießkokille zum kontinuierlichen Gießen von Metall
DE19639295C2 (de) * 1996-09-25 1999-09-09 Schloemann Siemag Ag Stranggießkokille
IT1287156B1 (it) * 1996-11-12 1998-08-04 Giovanni Arvedi Insieme perfezionato di apparecchiature per la colata continua a velocita' elevata di bramme d'acciaio sottili di buona qualita'
JPH11207442A (ja) * 1998-01-21 1999-08-03 Sumitomo Heavy Ind Ltd 連続鋳造設備の鋳型およびそれを用いた鋳造方法
WO2003035306A1 (fr) * 2001-10-18 2003-05-01 Sms Demag Aktiengesellschaft Procede et dispositif pour optimiser la capacite de refroidissement d'une coquille de coulee continue pour metaux liquides, notamment acier liquide
TWI268821B (en) * 2002-04-27 2006-12-21 Sms Demag Ag Adjustment of heat transfer in continuous casting molds in particular in the region of the meniscus
DE10226214A1 (de) * 2002-06-13 2003-12-24 Sms Demag Ag Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
DE10304543B3 (de) * 2003-02-04 2004-05-27 Sms Demag Ag Verfahren und Einrichtung zum Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen
JP4261272B2 (ja) * 2003-07-14 2009-04-30 三島光産株式会社 連続鋳造用鋳型
DE10358853A1 (de) * 2003-12-16 2005-07-14 Km Europa Metal Ag Stranggießkokille
CN2681837Y (zh) * 2004-01-12 2005-03-02 宝山钢铁股份有限公司 薄板坯连铸结晶器宽面铜板
DE102005040634A1 (de) * 2005-08-27 2007-03-01 Sms Demag Ag Kokillenbreitseite einer Trichterkokille
ITMI20052367A1 (it) * 2005-12-13 2007-06-14 Danieli Off Mecc Cristallizzatore
DE102006036708A1 (de) * 2006-08-05 2008-02-07 Sms Demag Ag Stranggießkokille für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe
CN100486732C (zh) * 2007-11-08 2009-05-13 攀钢集团攀枝花钢铁研究院 板坯连铸结晶器

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP2321075A1 (fr) 2011-05-18
CN102112255A (zh) 2011-06-29
CN102112255B (zh) 2014-05-07
WO2010015399A1 (fr) 2010-02-11

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