EP1555074B1 - Giesswalzanlage - Google Patents

Giesswalzanlage Download PDF

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Publication number
EP1555074B1
EP1555074B1 EP04027353A EP04027353A EP1555074B1 EP 1555074 B1 EP1555074 B1 EP 1555074B1 EP 04027353 A EP04027353 A EP 04027353A EP 04027353 A EP04027353 A EP 04027353A EP 1555074 B1 EP1555074 B1 EP 1555074B1
Authority
EP
European Patent Office
Prior art keywords
casting
plant according
rolling plant
coating
roll
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.)
Active
Application number
EP04027353A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1555074A1 (de
Inventor
Hans-Günter Wobker
Dietmar Kolbeck
Klaus Maiwald
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.)
KME Special Products GmbH and Co KG
Original Assignee
KME Germany GmbH
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Publication date
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Publication of EP1555074A1 publication Critical patent/EP1555074A1/de
Application granted granted Critical
Publication of EP1555074B1 publication Critical patent/EP1555074B1/de
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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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/0651—Casting wheels

Definitions

  • the invention relates to a continuous casting plant for continuous casting of metal strips, in particular of aluminum strips, which has two counter-rotating casting rolls, between which a casting gap is formed.
  • Casting involves pouring a liquid molten metal between two horizontally, vertically, or at an angle, counter-rotating casting rolls. During this process, the strip solidifies between the two casting rolls and continues to run continuously in the process.
  • the so-called two-roll strip casting of aluminum strip is a method used for several years. This method usually produces strip thicknesses in the range of 1 mm to 10 mm.
  • the method is characterized by two casting rolls, which are usually arranged vertically one above the other and between which a casting gap corresponding to the desired strip thickness is produced.
  • Casting rollers of the common type have a cylindrical core, usually made of steel, which is used to guide cooling water, and a jacket connected to the core.
  • a cylindrical core usually made of steel, which is used to guide cooling water
  • a jacket connected to the core.
  • high thermal conductivity materials such as copper or copper alloys are used.
  • steel shells are used for the casting of non-ferrous metals.
  • High-strength steels with the alloying elements C, Mn, Ni, Cr, Mo, V are used as the material for the production of the steel shells, which have strengths at room temperatures between 800 MPa and 1200 MPa.
  • a disadvantage of these materials is their limited thermal conductivity, which is usually in the range of 25 to 50 W / m ⁇ K.
  • Coats made of copper or copper alloys are predominantly made of copper materials with thermal conductivities in the range of 200 to 370 Wim ⁇ K.
  • special alloys based on copper and cobalt and beryllium it is possible to produce aluminum strips with Kupferg automatwalzen under production conditions.
  • a disadvantage of the use of casting rolls with copper jacket are the relatively high cost of the casting rolls, which only pay for correspondingly high casting performance, but this is not always the case.
  • JP 01 166862 A From the JP 01 166862 A is a casting mill for continuous casting of metal strips known in which counter-rotating casting rolls are used, which are each provided with an outer copper layer. In addition, a nickel-containing alloy may be applied.
  • the JP 59 061551 A discloses a caster in which the counter-rotating casting rolls are also provided with a coating.
  • a ceramic coating is proposed.
  • Another casting rolling mill is the subject of the JP 01 170553 A , In this document, it is proposed to provide one of two counter-rotating casting rolls by a thermal spraying with a hard metal coating, while the corresponding casting roll consists of a copper material.
  • the molten metal is applied by means of a nozzle to the hard metal-coated casting roll and transported via this into the gap between the casting rolls. This is intended to produce a very thin metal strip.
  • a single casting roll is proposed in which the molten metal is applied via a nozzle directly onto the casting roll.
  • the surface of the casting roll may, for example, be provided with a ceramic layer of high hardness and low roughness. It is a one-roll system.
  • the invention is based on the prior art based on the object to increase a cast rolling mill in particular for the continuous casting of aluminum strips in terms of performance and cost to improve.
  • the main point of the invention is the use of different material pairings in the peripheral areas of lateral surfaces of the two casting rolls.
  • one of the two casting rolls consists at least in the edge region of a copper material, whereas the other, second casting roll consists of a steel material at least in the edge region.
  • the two casting rolls can consist of solid material.
  • first casting roll completely made of a copper material
  • second casting roll completely made of a steel material.
  • each casting roll has a cylindrical core made of a steel material and an edge region connected thereto in the form of a jacket, the jacket of the first casting roll consisting of the copper material and the jacket of the second casting roll consisting of the steel material.
  • the copper material should have a thermal conductivity ⁇ K of 200 to 370 W / m ⁇ K, in particular from 230 W / m ⁇ K to 260 W / m ⁇ K, and the steel material has a thermal conductivity ⁇ S of 25 to 50 W / m ⁇ K , in particular from 30 W / m ⁇ K to 40 W / m ⁇ K.
  • the aforementioned thermal conductivities ⁇ K of the copper materials in combination with the required high strengths of R p 0.2 ⁇ 500 MPa are in particular of CuCoBe- (copper, cobalt, beryllium) or CuNiBe- (copper, nickel, beryllium) or CuNiSi (copper, Nickel, silicon) alloys.
  • a particularly advantageous embodiment of the casting roll plant according to the invention provides that the first casting roll, so the copper casting roll is used as the lower roll, since a larger amount of heat must be removed at the lower casting roll.
  • the lateral surfaces of the casting rolls have a surface roughness R A of 0.2 microns to 0.8 microns.
  • R A surface roughness
  • the first casting roller may have a coating of a material with a lower thermal conductivity than the copper material.
  • the coating is nickel or a nickel alloy. This allows the dissipation of heat from the process via the Casting be reduced, so that base materials higher thermal conductivity can apply.
  • the thermal conductivity ⁇ B of the coating should be less than 100 W / m ⁇ K.
  • a heat conductivity ⁇ B of the coating of 60 W / m ⁇ K to 80 W / m ⁇ K is considered to be particularly advantageous.
  • the coating should have a layer thickness between 0.5 mm and 2.0 mm, in particular of 1.0 mm.
  • the hardness of the coating should be between 180 HB and 420 HB. Particularly suitable for practice is a coating with a hardness between 220 HB and 380 HB.
  • MCrAIY stands for a metal, for example iron (Fe), nickel (Ni) or cobalt (Co) or a combination of these elements with chromium, aluminum and yttrium (Fe / Ni / CoCrAlY).
  • the lateral surfaces of the casting rolls can be provided with a texture.
  • the texturing can be generated for example by mechanical action such as sandblasting and the like. Due to the textured surface structure of the casting rolls, the heat transfer from the melt into the casting rolls can be influenced.
  • the casting rolls are preferably profiled differently in the casting-rolling plant according to the invention.
  • both casting rolls are provided with a convex profile, wherein the diameter increase in the roll center is about 0.05 mm to 1.0 mm. Due to the higher rigidity, the profile cant of the second casting roll (steel casting roll) is lower than the profile increase of the first casting roll (copper casting roll).
  • Figure 1 shows technically greatly simplified, the two casting rolls 1, 2 of a casting mill for strand or strip casting of aluminum strip with the associated melting and Verg cordofen 3.
  • the two casting rolls 1, 2 are arranged one above the other, wherein between the two casting rolls 1, 2 a G beauspalt 4 is set, which corresponds to the desired strip thickness.
  • the stockpiled in the furnace 3 molten aluminum melt is fed to the casting rolls 1, 2 via a feed 5 and passes between the counter-rotating casting rolls 1, 2.
  • the aluminum strip 6 solidifies between the two casting rolls 1, 2 and is then continued in the process continuously.
  • the lower 1st casting roll 1 consists of a copper material
  • the upper 2nd casting roll 2 consists of a steel material
  • the first casting roll 1 made of a copper material according to the invention has a thermal conductivity ⁇ K of 230 to 260 W / m ⁇ K.
  • the steel material of the 2nd casting roll 2 has a thermal conductivity ⁇ S of 30 to 40 W / m ⁇ K.
  • each casting roll 7, 8 of a cast rolling mill shown in FIG. 2 each casting roll 7, 8 has a cylindrical core 9, 10 made of a steel material.
  • a casting gap 11 corresponding to the desired strip thickness is formed between the casting rolls 7, 8.
  • the circumferential edge regions of each casting roll 7, 8 are each formed by a jacket 12, 13.
  • the coats 12, 13 are shrunk on the cores usually. In principle, however, other joining techniques, for example by lifting or a mechanical clamping, possible.
  • the jacket 12 of the lower first casting roll 7 is made of a copper material
  • the jacket 13 of the upper second casting roll 8 consists of a steel material.
  • the copper material has a thermal conductivity of 230 to 260 W / m ⁇ K
  • the steel material has a thermal conductivity of 30 to 40 W / m ⁇ K.
  • the two casting rolls 14, 15 shown in FIG. 3 correspond to the basic structure of the previously explained.
  • the lower 1st casting roll 14 has a cylindrical core 16 made of a steel material and a jacket 17 a copper material, whereas the upper 2nd casting roll 15 consists of a steel material both in the core 18 and in the jacket 19.
  • the parameters for thermal conductivity the information given according to the invention applies.
  • the first casting roll 14 is provided with a coating 20 made of a material having a lower thermal conductivity ⁇ B than the copper material of the jacket 17.
  • the coating 20 should have a thermal conductivity ⁇ B of less than 100 W / m ⁇ K, preferably from 60 to 80 W / m ⁇ K.
  • the material used for the coating is nickel or a nickel alloy.
  • the coating with metallic or ceramic spray coatings is possible. In the case of a coating of a metallic material, in particular a coating of MCrAlY is intended.
  • the coating 20 should have a layer thickness between 0.5 to 2.0 mm, wherein a layer thickness of 1.0 mm is considered to be particularly advantageous in practice. Furthermore, the coating 20 should be as far as it is formed as nickel or nickel alloy, a hardness of 180 to 420 HB, preferably between 220 to 380 HB, whereby an effective wear protection is achieved, which has advantages on the life of the casting roll 14.
  • the surface roughness of the lateral surfaces 21-26 of the casting rolls 1, 2; 7, 8; 14, 15 are in the range between Ra 0.2 to 0.8 mm.
  • the lateral surfaces 21-26 of the casting rolls 1, 2; 7, 8; 14, 15 given a tuned to the desired heat transfer topography.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Moulding By Coating Moulds (AREA)
EP04027353A 2004-01-14 2004-11-18 Giesswalzanlage Active EP1555074B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002124 2004-01-14
DE102004002124A DE102004002124A1 (de) 2004-01-14 2004-01-14 Gießwalzanlage

Publications (2)

Publication Number Publication Date
EP1555074A1 EP1555074A1 (de) 2005-07-20
EP1555074B1 true EP1555074B1 (de) 2008-01-09

Family

ID=34609565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027353A Active EP1555074B1 (de) 2004-01-14 2004-11-18 Giesswalzanlage

Country Status (17)

Country Link
US (1) US7028748B2 (da)
EP (1) EP1555074B1 (da)
JP (1) JP2005199348A (da)
KR (1) KR101148631B1 (da)
CN (1) CN100366362C (da)
AT (1) ATE383214T1 (da)
AU (1) AU2004235624A1 (da)
BR (1) BRPI0404648A (da)
CA (1) CA2492611A1 (da)
DE (2) DE102004002124A1 (da)
DK (1) DK1555074T3 (da)
ES (1) ES2297325T3 (da)
MX (1) MXPA05000464A (da)
MY (1) MY141802A (da)
PT (1) PT1555074E (da)
RU (1) RU2005100728A (da)
ZA (1) ZA200410056B (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE380079T1 (de) * 2003-12-01 2007-12-15 Sms Demag Ag Haspeltreiber mit treiberrollen mit gussmänteln
DE102006011384B4 (de) * 2006-03-09 2019-09-05 Sms Group Gmbh Rolle zur Metallbearbeitung, insbesondere Stranggießrolle
DE102008017432A1 (de) * 2008-04-03 2009-10-08 Kme Germany Ag & Co. Kg Gießform
US10957942B2 (en) 2016-09-14 2021-03-23 Wirtz Manufacturing Co., Inc. Continuous lead strip casting line, caster, and nozzle
US10960461B2 (en) 2016-09-14 2021-03-30 Wirtz Manufacturing Co., Inc. Continuous lead strip casting line, caster, and nozzle
CN108480577A (zh) * 2018-03-13 2018-09-04 闻喜县远华冶金材料有限公司 铸轧镁合金型材的生产方法
CN110253299A (zh) * 2019-06-06 2019-09-20 扬州市顺腾不锈钢照明器材有限公司 一种钢板开平机
CN114985690B (zh) * 2022-05-27 2023-06-06 安徽安坤新材科技有限公司 一种铜铝复合板生产的铸轧设备及其铸轧工艺
CN116037874A (zh) * 2022-12-30 2023-05-02 东北大学 一种铝合金梯度材料的铸轧装置及铸轧工艺

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5768251A (en) * 1980-10-14 1982-04-26 Sumitomo Special Metals Co Ltd Method and device for production of quick cooling material for melt
JPS5961551A (ja) * 1982-09-29 1984-04-07 Hitachi Metals Ltd 急冷薄帯製造用ロ−ル
JPH01166862A (ja) * 1987-12-21 1989-06-30 Ishikawajima Harima Heavy Ind Co Ltd 双ロール式連鋳機のロール鋳型
JPH01170553A (ja) * 1987-12-25 1989-07-05 Kawasaki Steel Corp 急冷金属薄帯の製造装置
JPH07115131B2 (ja) * 1988-02-05 1995-12-13 株式会社神戸製鋼所 双ロール式鋳造装置
JPH0787970B2 (ja) * 1988-07-28 1995-09-27 日新製鋼株式会社 薄板連鋳機
US4936374A (en) * 1988-11-17 1990-06-26 The United States Of America As Represented By The United States Department Of Energy Sidewall containment of liquid metal with horizontal alternating magnetic fields
JPH03243250A (ja) * 1990-02-19 1991-10-30 Kawasaki Steel Corp 平滑な表面性状をもつアルミニウム系金属薄帯の製造方法
JPH04138846A (ja) * 1990-09-28 1992-05-13 Nippon Steel Corp 異なる溶融体から急冷凝固クラッド箔を製造する方法
US5495886A (en) * 1994-04-29 1996-03-05 Inland Steel Company Apparatus and method for sidewall containment of molten metal with vertical magnetic fields
DE19508169C5 (de) * 1995-03-08 2009-11-12 Kme Germany Ag & Co. Kg Kokille zum Stranggießen von Metallen
CN1042704C (zh) * 1995-03-27 1999-03-31 冶金工业部钢铁研究总院 一种薄带连铸机
TW514938B (en) * 1999-11-04 2002-12-21 Seiko Epson Corp Cooling roll, production method for magnet material, thin-band-like magnet material, magnet powder and bond magnet
JP3684136B2 (ja) * 2000-05-12 2005-08-17 新日本製鐵株式会社 薄鋳片連続鋳造機用ドラムおよび薄鋳片連続鋳造方法
JP4441130B2 (ja) 2001-01-24 2010-03-31 新日本製鐵株式会社 双ドラム式連続鋳造用ドラム
DE10156925A1 (de) * 2001-11-21 2003-05-28 Km Europa Metal Ag Aushärtbare Kupferlegierung als Werkstoff zur Herstellung von Giessformen
JP2003311379A (ja) * 2002-04-26 2003-11-05 Seiko Epson Corp 冷却ロール、薄帯状磁石材料、磁石粉末およびボンド磁石

Also Published As

Publication number Publication date
KR101148631B1 (ko) 2012-05-23
CN1640582A (zh) 2005-07-20
ATE383214T1 (de) 2008-01-15
KR20050074888A (ko) 2005-07-19
MXPA05000464A (es) 2005-07-15
US7028748B2 (en) 2006-04-18
DE102004002124A1 (de) 2005-08-11
EP1555074A1 (de) 2005-07-20
DK1555074T3 (da) 2008-05-13
JP2005199348A (ja) 2005-07-28
MY141802A (en) 2010-06-30
PT1555074E (pt) 2008-02-25
ZA200410056B (en) 2005-07-19
ES2297325T3 (es) 2008-05-01
BRPI0404648A (pt) 2006-06-06
DE502004005898D1 (de) 2008-02-21
AU2004235624A1 (en) 2005-07-28
CN100366362C (zh) 2008-02-06
US20050150630A1 (en) 2005-07-14
RU2005100728A (ru) 2006-06-20
CA2492611A1 (en) 2005-07-14

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