EP2321075A1 - 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

Info

Publication number
EP2321075A1
EP2321075A1 EP09777692A EP09777692A EP2321075A1 EP 2321075 A1 EP2321075 A1 EP 2321075A1 EP 09777692 A EP09777692 A EP 09777692A EP 09777692 A EP09777692 A EP 09777692A EP 2321075 A1 EP2321075 A1 EP 2321075A1
Authority
EP
European Patent Office
Prior art keywords
continuous casting
casting mold
cooling channels
plates
channels
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.)
Granted
Application number
EP09777692A
Other languages
German (de)
English (en)
Other versions
EP2321075B1 (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
Original Assignee
SMS 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 Siemag AG filed Critical SMS Siemag AG
Publication of EP2321075A1 publication Critical patent/EP2321075A1/fr
Application granted granted Critical
Publication of EP2321075B1 publication Critical patent/EP2321075B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B22D11/055—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 clamping walls that are opposite one another and are clampable between the wide side walls and narrow side walls that are displaceable along the width side transversely to the casting direction, tapered narrower in the casting direction or parallel to one another; the broad side walls have a funnel-shaped or parallel-walled pouring area. which extends in the casting direction to Kokillenende.
  • the broad sides of the mold can be arranged parallel to each other. In this case, the narrow side walls are interchangeably arranged according to the thickness of the metal strand to be cast.
  • 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 fauxadorrios can be reduced.
  • Figure 1 shows such a curved mold in longitudinal section, based on 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 inner side facing the casting cavity 3, it is bent with a radius R 3 , while the copper plate 2 mounted on the outside of the mold for thickness adjustment of the slab to be cast is bent on its inside with a radius Rj.
  • 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 Si 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.
  • this object is achieved in a continuous casting mold of the type mentioned above in that the cooling channels adapted to the desired cooling effect cross sections and / or adapted to the desired cooling effect of the side walls distance to the hot side of the side walls, ie to the side of the side walls.
  • an optimized design of the wall thickness of the casting cavity bounding copper plates is sought, for example, in a Bo- genkokille 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 in the safety 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.
  • cover plates On the outside are the copper plates of other plates, d. H. covered by cover plates, through which the recesses, grooves, channels, etc. are covered, so that they form closed lines, which have only at the top and bottom of an inlet or an outlet, so that a cooling liquid can flow through them sen.
  • the webs of the cooling channels are partially cleared and in that inserts are inserted in the resulting free space.
  • regions, ie preferably at certain lateral distances from one another parallel recesses on the outside of the copper plate are brought in by material removal. Subsequently, where too much material has been removed, Inserted inserts so that the remaining in the copper plate wells have the desired contour and shape that corresponds to the desired heat transfer.
  • the inserts can also be mounted on a cover plate or a plurality of cover plates, which cover the copper plate on its outer side or cover, wherein the inserts are mounted on the cover plate or the cover plates such that the inserts into the channels or recesses of the Protruding copper plate, so that the cross-section of these channels and wells is reduced accordingly.
  • cooling channels are formed as bores in the adjacent to the casting cavity copper plates.
  • the inserts have dimensions that can vary according to the desired wall thickness and width of the channels above the height of the plates.
  • 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.
  • 2a is a perspective view of a continuous casting mold with two each equipped with channels copper plates, partially cut away, omitting the outer walls,
  • FIG. 2b shows a sectional view of the continuous casting mold corresponding to a section line A-A from FIG. 2a in the region of the channels
  • 3a is a sectional view of the continuous casting mold according to a section line B - B of Fig. 2a, d. H. in the area of narrow bridges between the canals,
  • Fig. 3b is a plan view of one of the copper plates of the continuous casting mold according to Fig. 2a, partially with inserts, and
  • Fig. 4 is a sectional view of the copper plate and the inserts corresponding to a section line C - C of Fig. 2b.
  • the copper plates 8, 9 form the broad side walls and are respectively on their hot sides 10 and 11, with which they adjoin a casting cavity 12 for receiving the molten metal , bent with a radius R a or a radius Rj.
  • 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. In the distance one
  • a plurality of channels 13 and an associated number of narrow webs 14 are wide webs 15 are provided, 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 with the
  • Support frames are connected. 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 can be bolted to the copper plate 8, 9 via the bores 16.
  • the channels 13 on their, the hot sides 10, 11 facing channel bottoms the same curvature R a and Rj 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
  • Ri - s (y) for the channels 13 in the inside copper plate 9.
  • contours of the inserts 17, 18 facing the channels 13 also run in the same way as those of the channel bottoms, so that the channels 13 have the same cross-section in all height positions of the copper plates 8, 9. 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 clearance 21 (FIG. 3 b) between the webs 15. LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

La présente invention concerne une lingotière de coulée continue destinée à la coulée continue d'un boyau de métal, en particulier d'un boyau d'acier, présentant des parois de large côté (8, 9) et des parois de côté étroit respectivement opposées, au moins l'une des parois de large côté (8, 9) étant équipée de canaux de refroidissement (13). L'invention se caractérise en ce que les canaux de refroidissement (13) ont des sections transversales dimensionnées en fonction de l'effet de refroidissement souhaité.
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 true EP2321075A1 (fr) 2011-05-18
EP2321075B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3626364A1 (fr) * 2018-09-18 2020-03-25 SMS Group GmbH Section de conduite et dispositif de lingotière dotée de la section de conduite

Families Citing this family (6)

* 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
CN104395015B (zh) * 2012-06-27 2016-08-17 杰富意钢铁株式会社 连续铸造用铸型以及钢的连续铸造方法
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
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)

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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
US20040256080A1 (en) * 2001-10-18 2004-12-23 Werner Rahmfeld Method and device for optimizing the cooling capacity of a continuous casting mold for liquid metals, particularly for liquid steel
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)

* Cited by examiner, † Cited by third party
Title
See references of WO2010015399A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3626364A1 (fr) * 2018-09-18 2020-03-25 SMS Group GmbH Section de conduite et dispositif de lingotière dotée de la section de conduite

Also Published As

Publication number Publication date
EP2321075B1 (fr) 2018-07-11
CN102112255A (zh) 2011-06-29
WO2010015399A1 (fr) 2010-02-11
CN102112255B (zh) 2014-05-07

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