EP0912271A1 - Coquille a refroidissement par un liquide - Google Patents

Coquille a refroidissement par un liquide

Info

Publication number
EP0912271A1
EP0912271A1 EP97924881A EP97924881A EP0912271A1 EP 0912271 A1 EP0912271 A1 EP 0912271A1 EP 97924881 A EP97924881 A EP 97924881A EP 97924881 A EP97924881 A EP 97924881A EP 0912271 A1 EP0912271 A1 EP 0912271A1
Authority
EP
European Patent Office
Prior art keywords
mold according
copper
chill mold
copper plates
plates
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
EP97924881A
Other languages
German (de)
English (en)
Other versions
EP0912271B1 (fr
Inventor
Wolfgang Stagge
Gerhard HUGENSCHÜTT
Franz Keiser
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.)
KM Europa Metal AG
Original Assignee
KM Europa Metal 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
Priority claimed from DE19716450A external-priority patent/DE19716450A1/de
Application filed by KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP0912271A1 publication Critical patent/EP0912271A1/fr
Application granted granted Critical
Publication of EP0912271B1 publication Critical patent/EP0912271B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B22D11/0406—Moulds with special profile
    • 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
    • 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
    • B22D11/059—Mould materials or platings

Definitions

  • a liquid-cooled mold of the type in question is used for the continuous casting of thin steel slabs, the cross-sectional length of which is a multiple of the cross-sectional width.
  • At least each broad side wall is composed of a copper plate delimiting the mold cavity and a steel support plate.
  • the copper plate is attached to the support plate by means of transversely protruding metal bolts. To do this, the metal bolts penetrate the holes in the support plate. Extended areas are provided at the end of the holes, in which nuts can be screwed onto the threaded ends of the metal bolts. With their help, the copper plate is pulled firmly to the support plate.
  • the invention is based on the object of creating a liquid-cooled mold for high casting speeds, in particular for continuous steel casting close to the final dimensions, in which the strength problems in the area of the connections of the metal bolts to the copper plates are significantly reduced. According to the invention, this object is achieved in the features of claim 1.
  • the key point of the invention is the measure of specifically forming the metal bolts from a CuNiFe alloy.
  • metal bolts On account of such, in particular hard-drawn, metal bolts, considerable increases in strength are now achieved with only little scatter in the strength in the welded connections to the copper plate.
  • This can be made of pure copper, for example SF-Cu, or of a high-temperature resistant copper alloy, e.g. B. consist of a hardenable copper alloy with additions of chromium and / or zirconium.
  • the hitherto unsafe handling and the many influencing factors during welding, which involve a 100% inspection, are no longer required.
  • the metal bolts consist of a CuNi30Mn1 Fe material.
  • the metal studs are welded onto the copper plates using a filler metal.
  • nickel is used here as a filler material (claim 5).
  • the filler metal can be inserted as a foil between the metal studs and the copper plates. It is also possible to provide the copper plates with the filler metal at the connection points or to coat the end faces of the metal bolts. It is also possible to use nickel rings on the circumference of the metal studs as a filler metal.
  • the copper plates of the broad side walls have groove-like coolant channels which run parallel to the casting direction and are covered by the support plates. With the help of such coolant channels, an increased heat transfer from the casting side to the cooling water can be ensured, so that high
  • Coolant channels in the copper plates are used in particular when the thickness of the copper plates is sufficient to be able to introduce sufficiently large coolant channels in cross section.
  • the copper plates have cooling bores next to the coolant channels parallel to the casting direction and extending in the vertical cross-sectional planes of the metal bolts.
  • Such cooling holes can be created by mechanical deep drilling.
  • Cooling holes transferred coolant avoids a local temperature rise of the copper plates in the vicinity of the connection areas of the metal bolts with the copper plate in continuous casting operation.
  • the cooling bores are preferably arranged in the area of the bathroom mirror.
  • the invention according to claim 9 provides that the support plates have groove-like coolant channels running parallel to the casting direction and covered by the copper plates. There are then no coolant channels in the copper plates. If necessary, a combination of coolant channels in the copper plates and in the support plates can also be used.
  • the cross section of the mold cavity is dimensioned larger at the end on the pouring side than at the end on the strand exit side.
  • the mold cavity has a multiple taper.
  • a bulge can be provided at the pour-in end of the mold cavity, which bulges in the casting direction. This bulge is used in particular to hold a dip tube.
  • Figure 1 in the schematic in vertical longitudinal section a liquid-cooled mold
  • Figure 2 is an enlarged view of a partial view of the back of a
  • FIG. 3 shows, on an enlarged scale, a partial horizontal section through a broad side wall of the mold of FIGS. 1 and
  • Figure 4 also on an enlarged scale, a partial horizontal section through a broad side wall according to another embodiment.
  • FIG. 1 denotes a liquid-cooled mold, only schematically illustrated, for the continuous casting of thin steel slabs, not shown, the cross-sectional length of which is a multiple of the cross-sectional width.
  • the mold 1 has two mutually opposing multi-layer broad side walls 2 and two likewise opposing narrow side walls 3, which form a mold cavity 4.
  • the broad side walls 2 are provided at the pouring end 5 of the mold cavity 4 with bulges 6 which are continuously deformed downwards along a partial height of the mold 1.
  • the cross section of the mold cavity 4 is rectangular and aligned with the desired thin slab cross section.
  • the purpose of the two bulges 6 lying opposite one another is to create the space required for a dip tube (not illustrated in more detail) for the supply of the molten metal.
  • each broad side wall 2 has a copper plate 8 delimiting the mold cavity 4 and a steel support plate 9.
  • the copper plate 8 as can also be seen in FIG. 2 drawn without the support plate 8, groove-like coolant channels 10 running parallel to the casting direction GR and covered by the support plate 9 and to which cooling water can be applied are provided.
  • FIGS. 2 and 3 show that cooling bores 11, which can likewise be acted upon by cooling water, extend parallel to the coolant channels 10.
  • the cooling bores 11 run in the vertical cross-sectional planes QE of metal studs 12 made of CuNi30Mn1Fe, which are fastened to the rear side 14 of the copper plate 8 by means of the stud welding process using nickel rings 13 as welding filler material.
  • the metal bolts 12 pass through bores 15 in the support plate 9.
  • By screwing nuts 16 onto the thread ends 17 of the metal bolts 12 the copper plate 8 is pulled towards the support plate 9 and fixed to it.
  • the nuts 16 lie in enlarged end sections 18 of the bores 15.
  • the coolant is fed into the cooling bores 11 via the coolant channels 10, and expediently, as shown in FIG. 2, via a branch 19 between a cooling bore 11 and the adjacent coolant channel 10.
  • FIG. 3 also shows that the coolant channels 10, in addition to the cross-sectional planes QE of the metal bolts 12, are formed deeper than the other coolant channels 10.
  • the arrangement of coolant channels 10 and cooling bores 11 in a copper plate 8 takes place when the copper plate 8 has a sufficient thickness D.
  • coolant channels 10a according to FIG. 4 are worked into the support plate 9a and covered by the copper plate 8a when the copper plate 8a is fixed to the support plate 9a with the help of the metal bolts 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
EP97924881A 1996-05-13 1997-05-07 Coquille a refroidissement par un liquide Expired - Lifetime EP0912271B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19619073 1996-05-13
DE19619073 1996-05-13
DE19716450 1997-04-21
DE19716450A DE19716450A1 (de) 1996-05-13 1997-04-21 Flüssigkeitsgekühlte Kokille
PCT/DE1997/000961 WO1997043063A1 (fr) 1996-05-13 1997-05-07 Coquille a refroidissement par un liquide

Publications (2)

Publication Number Publication Date
EP0912271A1 true EP0912271A1 (fr) 1999-05-06
EP0912271B1 EP0912271B1 (fr) 2000-08-23

Family

ID=26025623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97924881A Expired - Lifetime EP0912271B1 (fr) 1996-05-13 1997-05-07 Coquille a refroidissement par un liquide

Country Status (17)

Country Link
US (1) US6145579A (fr)
EP (1) EP0912271B1 (fr)
JP (1) JP2000510049A (fr)
KR (1) KR20000010963A (fr)
CN (1) CN1170645C (fr)
AT (1) ATE195678T1 (fr)
AU (1) AU712782B2 (fr)
BR (1) BR9709585A (fr)
CA (1) CA2253873A1 (fr)
CZ (1) CZ335498A3 (fr)
DK (1) DK0912271T3 (fr)
ES (1) ES2150774T3 (fr)
GR (1) GR3034806T3 (fr)
PL (1) PL183716B1 (fr)
PT (1) PT912271E (fr)
RU (1) RU2182058C2 (fr)
WO (1) WO1997043063A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19639295C2 (de) * 1996-09-25 1999-09-09 Schloemann Siemag Ag Stranggießkokille
DE19802809A1 (de) * 1998-01-27 1999-07-29 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
DE19829606A1 (de) * 1998-07-02 2000-01-05 Schloemann Siemag Ag Breitseite einer Brammenkokille
DE19835111A1 (de) * 1998-08-04 2000-02-10 Schloemann Siemag Ag Kokillenwand einer Stranggießanlage
DE19904149A1 (de) * 1999-02-03 2000-08-10 Sms Demag Ag Anordnung zum Verbinden einer Kokillenplatte mit einem Wasserkasten
JP3443109B2 (ja) * 2001-05-31 2003-09-02 ジャパン・エンジニアリング・ネットワーク株式会社 連続鋳造用組立て鋳型
KR100768315B1 (ko) * 2001-11-12 2007-10-17 주식회사 포스코 통크레인용 조우 승강장치
DE10226214A1 (de) * 2002-06-13 2003-12-24 Sms Demag Ag Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
DE10237472A1 (de) * 2002-08-16 2004-02-26 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
DE10237473A1 (de) * 2002-08-16 2004-02-26 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille zum Stranggießen von Metallen
US7106905B2 (en) * 2002-08-23 2006-09-12 Hewlett-Packard Development Company, L.P. Systems and methods for processing text-based electronic documents
JP2006320925A (ja) * 2005-05-18 2006-11-30 Sanyo Special Steel Co Ltd 均一冷却によって鋳片疵を防止する連続鋳造用鋳型
EP1918042A1 (fr) * 2006-10-10 2008-05-07 Concast Ag Coquille pour la coulee d'ébauche de profiles
DE102007002804A1 (de) * 2007-01-18 2008-07-24 Sms Demag Ag Kokillenwand einer Kokille zum Gießen einer Metallschmelze
CN102126002B (zh) * 2011-03-24 2013-01-23 中冶京诚工程技术有限公司 用于锭坯组合箱式水冷铸造装置的箱式水冷板组件
KR20140053279A (ko) * 2011-11-09 2014-05-07 신닛테츠스미킨 카부시키카이샤 강의 연속 주조 장치
ITMI20120153A1 (it) * 2012-02-06 2013-08-07 Arvedi Steel Engineering S P A Lingottiera per la colata continua veloce di bramme sottili di acciaio
CN102581239B (zh) * 2012-03-27 2014-01-01 中冶南方工程技术有限公司 用于高效板坯连铸机的结晶器宽面铜板
CN105108084A (zh) * 2015-09-15 2015-12-02 西峡龙成特种材料有限公司 金属连铸结晶器液冷窄面铜板
CN106041005A (zh) * 2016-07-19 2016-10-26 上海宝钢工业技术服务有限公司 一体式连铸结晶器部件及制备方法
DE102016124801B3 (de) 2016-12-19 2017-12-14 Kme Germany Gmbh & Co. Kg Kokillenplatte und Kokille
RU2748425C2 (ru) * 2019-05-07 2021-05-25 Вячеслав Викторович Стулов Кристаллизатор для получения слябовых заготовок

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709286A (en) * 1970-11-02 1973-01-09 United States Steel Corp Continuous-casting mold with thin-walled copper liner
DE3723857A1 (de) * 1987-07-18 1989-01-26 Schloemann Siemag Ag Kokille zum vertikalen stranggiessen von stahlband
JPH03258440A (ja) * 1990-03-06 1991-11-18 Mitsubishi Materials Corp 連続鋳造用鋳型
JPH0826539B2 (ja) * 1991-08-19 1996-03-13 中嶋 志朗 地盤改良体造成工法及びその装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9743063A1 *

Also Published As

Publication number Publication date
AU3023797A (en) 1997-12-05
ATE195678T1 (de) 2000-09-15
PL329805A1 (en) 1999-04-12
WO1997043063A1 (fr) 1997-11-20
JP2000510049A (ja) 2000-08-08
RU2182058C2 (ru) 2002-05-10
CN1219143A (zh) 1999-06-09
CA2253873A1 (fr) 1997-11-20
US6145579A (en) 2000-11-14
EP0912271B1 (fr) 2000-08-23
DK0912271T3 (da) 2000-11-06
KR20000010963A (ko) 2000-02-25
AU712782B2 (en) 1999-11-18
GR3034806T3 (en) 2001-02-28
BR9709585A (pt) 2000-05-02
PL183716B1 (pl) 2002-07-31
CN1170645C (zh) 2004-10-13
ES2150774T3 (es) 2000-12-01
CZ335498A3 (cs) 1999-07-14
PT912271E (pt) 2001-02-28

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