EP0911095A1 - Lingotière pour machine de coulée continue - Google Patents

Lingotière pour machine de coulée continue Download PDF

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Publication number
EP0911095A1
EP0911095A1 EP98119000A EP98119000A EP0911095A1 EP 0911095 A1 EP0911095 A1 EP 0911095A1 EP 98119000 A EP98119000 A EP 98119000A EP 98119000 A EP98119000 A EP 98119000A EP 0911095 A1 EP0911095 A1 EP 0911095A1
Authority
EP
European Patent Office
Prior art keywords
mold
coating
mold body
nickel
casting
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
EP98119000A
Other languages
German (de)
English (en)
Other versions
EP0911095B1 (fr
EP0911095B2 (fr
Inventor
Dirk Dr. Rode
Hector Villanueva
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7846694&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0911095(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP0911095A1 publication Critical patent/EP0911095A1/fr
Publication of EP0911095B1 publication Critical patent/EP0911095B1/fr
Application granted granted Critical
Publication of EP0911095B2 publication Critical patent/EP0911095B2/fr
Anticipated expiration legal-status Critical
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
    • B22D11/055—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

  • the invention relates to a mold for a continuous caster with a shaping Mold body made of a material with high thermal conductivity, such as copper or a copper alloy.
  • Chill molds are used to produce full profiles in a continuous casting process used.
  • the mold is one of the most important components of a continuous caster. The solidification of the melt begins in it.
  • the basic structure usually consists of an outer steel structure and the actual shaping part of the mold, the mold body.
  • the mold body today consists almost exclusively of copper or a copper alloy.
  • the steel jacket has the task of positioning the mold body and the Ensure cooling necessary water circuit.
  • the mold body is covered with an inner one Coating made of a wear-resistant material, such as nickel or chrome.
  • a wear-resistant material such as nickel or chrome.
  • Such a continuous casting mold with a wear protection layer works, for example from DE 31 42 196 C2. This can improve the friction behavior and thus an increase in the service life of the mold body can be achieved.
  • the mold body In addition to the shape of the strand, the mold body has the essential one Task, through continuous heat dissipation, the formation of an adequate to ensure thick, resistant and flawless strand shell.
  • the invention is therefore based on the object to create a mold body, in which the heat dissipation especially in the area of the mold level is reduced and a better strand quality can be achieved.
  • the core of the invention is the measure, the heat dissipation in the mold body by reducing the coating on the outside.
  • the coating is there from a material with a compared to the material of the mold body lower thermal conductivity. This results in a process engineering goal reduced heat flow in the area of the mold level. The resulting higher temperatures have a positive effect on the quality of the strand surface and the structure quality.
  • the mold body can basically be a one-piece mold tube or a multi-part mold, for example a plate mold.
  • the coating is expediently only in the height range of the casting mirror applied, as provided for in claim 2. To this In this way, a reduction in the heat dissipation can be achieved in the area of the mold level become. This prevents the strand shell strength from being exceeded.
  • the thickness and length of the outer coating is based on the particular casting and System parameters matched.
  • the coating is only on part of the Applied circumference of the mold body. This measure is particularly useful with non-rotationally symmetrical mold bodies. With adjustable molds can it may be advantageous, for example, only the longitudinal plates with an outer coating to provide.
  • the targeted coating can cause a disproportionate shrinkage of the Strands in individual areas, for example in corner areas, can be avoided. This ensures that the heat transfer over the entire circumference of the Strand is approximately uniform, so that over the entire cross section of the Strands a strand shell growing uniformly in thickness is achieved.
  • a high quality and economical coating can be applied galvanically be (claim 4). It is also possible to use the coating as a thermal Apply spray layer, as provided for in claim 5.
  • the coating consists of nickel or a nickel alloy.
  • Nickel materials have already become the material for the inner wear protection layer proven. Therefore, there are often options for users Nickel plating of mold bodies given.
  • Nickel has more than four times less thermal conductivity than copper. Accordingly, an outer coating made of nickel can be an effective one Reduction of heat dissipation and thus an increase in the temperature in the area of the mold level be effected.
  • Nickel can be applied as a galvanic coating or as a metal spray coating become.
  • the mold body can be completely on the outside or only be coated locally in the area of the mold level.
  • the coating has a in the casting direction constant thickness.
  • the transitions in the edge areas of the coating run continuously. In this way, voltage jumps are avoided.
  • a coating according to claim 8 in which the thickness decreases in the casting direction, can specifically take into account the shrinking behavior of the material to be cast be worn.
  • the heat dissipation performance increases in the casting direction. In this way, the effective tuning of the solidification is available standing cooling section in the mold with regard to the shrinking behavior of the Strangs take place.
  • the reduction in the thickness of the outer coating can be linear or step-like respectively.
  • FIG. 1 illustrates a mold tube 1 for the continuous casting of steel.
  • the Mold tube 1 has a mold cavity 2, the cross section of which is on the pouring side Front end 3 is larger than dimensioned at the end 4 of the strand exit end.
  • the base body 5 of the mold tube 1 consists of a copper alloy, preferably based on copper / chrome / zircon (CuCrZr).
  • the mold tube 1 On the outside 6, the mold tube 1 has a section A in the height range the coating level 7 a coating 8.
  • the coating 8 consists of a material with a compared to the material of the mold tube 1 or Base body 5 lower thermal conductivity.
  • Nickel in particular is a material well suited for the outer coating 8. Nickel can be used both as galvanic Coating as well as a thermal metal spray layer can be applied.
  • the coating 8 reduces the heat flow and thus the heat dissipation of the mold tube 1 in the height range of the mold level 7. This results in higher ones Wall temperatures in the initial phase of strand shell formation. this leads to an improvement in the surface quality of a steel strand. In particular micro cracks near the edges of the mold tube 1 can be avoided in this way.
  • the coating 8 has an approximately constant thickness D 1 in the casting direction G. In the transition area 9, the coating 8 tapers continuously to the outside 6.
  • the mold tube 1 is made with a wear protection layer 11 Chrome, which is about 80 microns thick.
  • FIG. 2 Another embodiment of a mold tube 12 is shown in FIG. 2. This has an outer coating 14 on the pour-side end 13 to reduce the heat dissipation.
  • the coating 14 extends over the height range of the casting level 15, the thickness D 2 of the coating 14 decreasing in the casting direction G.
  • a possible embodiment of the coating 14 provides for a thickness D 2 that decreases from 3 mm to 1 mm with an end transition region 16.
  • FIG. 3 shows a detail from a further variant of a mold tube 17.
  • the mold tube 17 has a coating 18 on the outside 19, the thickness D 3 of which decreases linearly from the front end 20 to the foot end 21.
  • the heat dissipation in the mold tube 17 is reduced by the coating 18.
  • the heat flow increases overall from the front end 20 of the mold tube 17 to the foot end 21.
  • the mold body of a mold according to the invention does not necessarily have to be a mold tube be.
  • the invention is equally advantageous in the case of multi-part configurations Casting molds, such as plate molds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP98119000A 1997-10-25 1998-10-08 Lingotière pour machine de coulée continue Expired - Lifetime EP0911095B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19747305A DE19747305A1 (de) 1997-10-25 1997-10-25 Kokille für eine Stranggießanlage
DE19747305 1997-10-25

Publications (3)

Publication Number Publication Date
EP0911095A1 true EP0911095A1 (fr) 1999-04-28
EP0911095B1 EP0911095B1 (fr) 2004-09-22
EP0911095B2 EP0911095B2 (fr) 2010-07-21

Family

ID=7846694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119000A Expired - Lifetime EP0911095B2 (fr) 1997-10-25 1998-10-08 Lingotière pour machine de coulée continue

Country Status (7)

Country Link
US (1) US5899259A (fr)
EP (1) EP0911095B2 (fr)
JP (1) JP4303809B2 (fr)
CN (1) CN1075752C (fr)
AT (1) ATE276848T1 (fr)
CA (1) CA2247785C (fr)
DE (2) DE19747305A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19802809A1 (de) * 1998-01-27 1999-07-29 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
DE19852473C5 (de) * 1998-11-13 2005-10-06 Sms Demag Ag Kokillenplatte einer Stranggießanlage
CN100379137C (zh) * 2005-07-21 2008-04-02 南京航空航天大学 零电压开关复合式交错并联双管正激三电平直流变换器
KR100792801B1 (ko) 2006-12-15 2008-01-14 남기홍 튜브몰드 재생공법
JP4659796B2 (ja) * 2007-08-31 2011-03-30 三島光産株式会社 連続鋳造用鋳型の補修方法及び補修された連続鋳造用鋳型
CN101992276A (zh) * 2010-12-13 2011-03-30 西南铝业（集团）有限责任公司 一种铝合金结晶器
CN102069163B (zh) * 2010-12-24 2013-11-13 中冶京诚工程技术有限公司 结晶器、生产铸坯的装置和方法、铸坯以及超大断面铸坯
CN102527958A (zh) * 2011-12-09 2012-07-04 太原科技大学 用于连续铸钢的结晶装置
CN102554155A (zh) * 2011-12-22 2012-07-11 莱芜钢铁集团有限公司 管式结晶器
CN102527959A (zh) * 2011-12-22 2012-07-04 莱芜钢铁集团有限公司 组合式结晶器
KR101443788B1 (ko) * 2012-08-09 2014-09-23 주식회사 포스코 주조용 주형
CN102974782B (zh) * 2012-12-14 2015-01-21 莱芜钢铁集团有限公司 H型管式结晶器
DE102017211108A1 (de) * 2017-06-30 2019-01-03 Thyssenkrupp Ag Kokillenplatte und Kokille für eine Stranggießanlage sowie Strangguss-Verfahren
CN108838352B (zh) * 2018-05-25 2023-08-22 中冶连铸技术工程有限责任公司 一种双水套结构的结晶器
CN110125350A (zh) * 2019-06-04 2019-08-16 中国重型机械研究院股份公司 用于板坯连铸机结晶器宽面的多层复合铜板及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD3536A (fr) *
DE969000C (de) * 1951-03-09 1958-04-17 Boehler & Co Ag Geb Stranggiesskokille
FR2067289A1 (fr) * 1969-11-14 1971-08-20 Kabel Metallwerke Ghh
DE3142196A1 (de) * 1981-10-24 1983-05-11 Mishima Kosan Corp., Kitakyushu, Fukuoka Stranggussform mit unterschiedlichen ueberzugsschichten aus metall und verfahren zur herstellung derselben
US4450893A (en) * 1981-04-27 1984-05-29 International Telephone And Telegraph Corporation Method and apparatus for casting metals and alloys

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100154B (en) * 1981-04-27 1985-11-06 Sumitomo Metal Ind Molds for continuously casting steel
EP0108744B1 (fr) * 1982-11-04 1988-08-17 VOEST-ALPINE Aktiengesellschaft Lingotière à extrémités ouvertes pour une installation de coulée continue
DE3400220A1 (de) † 1984-01-05 1985-07-18 SMS Schloemann-Siemag AG, 4000 Düsseldorf Kokille zum stranggiessen von stahlband
US5407499A (en) * 1985-04-19 1995-04-18 Km Kabelmetal A.G. Making a mold for continuous casting
JPS63119954A (ja) † 1986-11-07 1988-05-24 Sumitomo Metal Ind Ltd 連続鋳造用超音波振動鋳型
US5778824A (en) * 1996-01-31 1998-07-14 Musgrave; Gary Magnetic device and method for feeding aquatic animals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD3536A (fr) *
DE969000C (de) * 1951-03-09 1958-04-17 Boehler & Co Ag Geb Stranggiesskokille
FR2067289A1 (fr) * 1969-11-14 1971-08-20 Kabel Metallwerke Ghh
US4450893A (en) * 1981-04-27 1984-05-29 International Telephone And Telegraph Corporation Method and apparatus for casting metals and alloys
DE3142196A1 (de) * 1981-10-24 1983-05-11 Mishima Kosan Corp., Kitakyushu, Fukuoka Stranggussform mit unterschiedlichen ueberzugsschichten aus metall und verfahren zur herstellung derselben

Also Published As

Publication number Publication date
DE59811984D1 (de) 2004-10-28
US5899259A (en) 1999-05-04
CA2247785A1 (fr) 1999-04-25
ATE276848T1 (de) 2004-10-15
CN1075752C (zh) 2001-12-05
JPH11197800A (ja) 1999-07-27
JP4303809B2 (ja) 2009-07-29
EP0911095B1 (fr) 2004-09-22
CN1215638A (zh) 1999-05-05
EP0911095B2 (fr) 2010-07-21
CA2247785C (fr) 2002-11-26
DE19747305A1 (de) 1999-04-29

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