EP0702094B1 - Verwendung einer aushärtbaren Kupferlegierung - Google Patents

Verwendung einer aushärtbaren Kupferlegierung Download PDF

Info

Publication number
EP0702094B1
EP0702094B1 EP95110134A EP95110134A EP0702094B1 EP 0702094 B1 EP0702094 B1 EP 0702094B1 EP 95110134 A EP95110134 A EP 95110134A EP 95110134 A EP95110134 A EP 95110134A EP 0702094 B1 EP0702094 B1 EP 0702094B1
Authority
EP
European Patent Office
Prior art keywords
nickel
copper alloy
mold
zirconium
copper
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.)
Expired - Lifetime
Application number
EP95110134A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0702094A1 (de
Inventor
Horst Gravemann
Dirk Dr. Rode
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
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
Application filed by KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP0702094A1 publication Critical patent/EP0702094A1/de
Application granted granted Critical
Publication of EP0702094B1 publication Critical patent/EP0702094B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
    • 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
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • C22C9/01—Alloys based on copper with aluminium as the next major constituent

Definitions

  • the invention relates to the use of a curable Copper alloy as a material with specifically adjustable electrical conductivity for the production of Continuous casting molds in which molten Metal through the action of electromagnetic forces is stirred.
  • the molten metal is melted during the casting process Stirring device under the influence of an electrical rotating field brought transversely to the strand withdrawal direction and through the emerging induction currents in a circular motion offset, which is essentially concentric to the longitudinal axis of the strand runs.
  • the result is a homogeneous casting structure, that meets particularly high quality standards.
  • Stirring devices usually below the mold, so that the remaining molten metal solidified in the partially Strand can be stirred just below the mold. But around the solidification structure also in the outer solidifying first It is to be able to influence edge areas of the strand favorable, the stirring device either at the level of the mold or to accommodate in the mold itself.
  • the mold materials used in the continuous casting of steel usually have high mechanical strength at the same time a high thermal conductivity to ensure optimal Ensure heat dissipation and cooling performance.
  • the one with it associated high maximum casting speed increases the Profitability of continuous steel casting.
  • the high electrical Conductivity leads to an undesirably high shielding effect of the mold material in relation to the Stirring generated magnetic field. This weakening of the magnetic field results in a lower depth effect of the Stirring effects.
  • the stirring effect can be increased by Amperage are increased, which, however, the necessary technical effort increases disproportionately. Overall, an optimal stirring effect with a high Mold materials with thermal conductivity are not reachable.
  • the known mold materials with lower thermal conductivity thus represent no economical alternative to the highly conductive mold materials, such as copper-chrome-zirconium alloys, for use in Casting plants with electromagnetic stirring device.
  • Continuous casting molds made of a copper-chrome-zirconium alloy with a Addition of up to 5% of at least one element from the group aluminum, Iron, silicon, nickel, tin, zinc and manganese are from JP-A-58 107 460 known.
  • JP-A-58 212 839 is a high temperature resistant copper-chrome-zirconium alloy with 0.05 to 0.8% aluminum and other strength enhancers Additives described for the manufacture of continuous casting molds can be used.
  • the object of the present invention is a curable copper material for use in casting plants with an electromagnetic stirring device to provide, which causes a low field loss and which continues has favorable strength and elongation at break properties.
  • the solution to this problem is to use a curable Copper alloy made of 0.1 to 2.0% nickel, 0.3 to 1.3% chromium, 0.1 to 0.5% Zirconium, 0.005 to 0.05% of at least one element from the phosphorus, Group comprising magnesium and boron, optionally up to 0.2% titanium, up to to 0.4% iron and up to 0.8% manganese, the rest copper including production-related Impurities as a material with specifically adjustable electrical Conductivity for the manufacture of continuous casting molds in which molten metal stirred by the action of electromagnetic forces becomes.
  • the alloy to be used according to the invention preferably contains 0.4 to 1.6% nickel, 0.6 to 0.8% chromium, 0.15 to 0.25% zirconium, at least one Element from the group 0.005 to 0.02% boron, 0.005 to 0.05% magnesium and 0.005 to 0.03% phosphorus, balance copper including unavoidable Impurities.
  • the boron additive can be in the melt, for example, as calcium boride be added.
  • the copper alloy according to the invention is surprisingly distinguished through a particularly advantageous combination of mechanical and physical Properties. With an electrical below 80% IACS Conductivity, this copper alloy also meets the essential requirement low field damping of a made from this alloy Mold wall.
  • the alloy add up to 0.2% titanium and / or 0.4% iron.
  • a low titanium content forms nickel and with the components present in the alloy Iron intermetallic compounds that increase strength.
  • composition of eight sample alloys is given in Table 1 in% by weight.
  • X denotes the total content of the individual elements boron, magnesium and / or phosphorus, which are added up to a total of 0.05% as deoxidizing agents. Higher levels can also be used to increase the strength of the alloy.
  • Leg. Ni Cr Zr X Ti Fe Al Mn Cu 1 0.20 0.70 0.18 0.015 rest 2nd 0.38 0.65 0.16 0.016 rest 4th 0.81 0.68 0.16 0.014 rest 5 0.81 0.66 0.17 0.014 0.10 0.22 rest 6 1.25 0.70 0.15 0.015 rest 7 1.60 0.66 0.18 0.016 rest 8th 1.68 0.72 0.17 0.016 rest 9 2.0 0.73 0.16 0.013 rest
  • Copper alloys with different nickel contents of 0.2 to 2%, about 0.7% chromium, 0.16 to 0.2% zirconium, up to 0.02% boron, magnesium and / or phosphorus, the rest of copper including manufacturing-related impurities were initially melted, cast into rolled ingots and then hot rolled at 950 ° C in several passes with a total degree of forming of 65%. After solution annealing at 1 030 ° C for at least one hour and subsequent quenching in water, the rolled plates were cured at 475 ° C for at least 4 hours. After final machining, the mold plates each had the property values summarized in Table 2, depending on the nickel content (0.2 to 2% nickel).
  • the first-mentioned property value is assigned to the copper alloy with 0.2% nickel content to be used according to the invention.
  • Yield strength at 350 ° C 270 to 290 N / mm 2 Elongation at break at 350 ° C 22 to 10%

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)
  • Conductive Materials (AREA)
  • Dental Preparations (AREA)
  • Adornments (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Laminated Bodies (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Colloid Chemistry (AREA)
EP95110134A 1994-08-06 1995-06-29 Verwendung einer aushärtbaren Kupferlegierung Expired - Lifetime EP0702094B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427939 1994-08-06
DE4427939A DE4427939A1 (de) 1994-08-06 1994-08-06 Verwendung einer aushärtbaren Kupferlegierung

Publications (2)

Publication Number Publication Date
EP0702094A1 EP0702094A1 (de) 1996-03-20
EP0702094B1 true EP0702094B1 (de) 1999-10-27

Family

ID=6525121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110134A Expired - Lifetime EP0702094B1 (de) 1994-08-06 1995-06-29 Verwendung einer aushärtbaren Kupferlegierung

Country Status (12)

Country Link
US (1) US6565681B1 (ja)
EP (1) EP0702094B1 (ja)
JP (1) JPH08104928A (ja)
KR (1) KR100374051B1 (ja)
CN (1) CN1058532C (ja)
AT (1) ATE186076T1 (ja)
DE (2) DE4427939A1 (ja)
ES (1) ES2139780T3 (ja)
FI (1) FI112669B (ja)
PL (1) PL177973B1 (ja)
RU (1) RU2160648C2 (ja)
ZA (1) ZA956181B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840094C2 (de) * 1998-09-03 2002-09-19 Waermetechnik Heimsoth Gmbh & Anwendung von Kupferlegierungen für Kühlpreßplatten in Einrichtungen für die Wärmebehandlung von Stahlteilen
DE10032627A1 (de) * 2000-07-07 2002-01-17 Km Europa Metal Ag Verwendung einer Kupfer-Nickel-Legierung
DE10306819A1 (de) * 2003-02-19 2004-09-02 Sms Demag Ag Kupferlegierung und Verwendung einer solchen Legierung für Giessformen
JP3731600B2 (ja) 2003-09-19 2006-01-05 住友金属工業株式会社 銅合金およびその製造方法
DE102008015096A1 (de) * 2008-03-19 2009-09-24 Kme Germany Ag & Co. Kg Verfahren zur Herstellung von Gießformteilen sowie nach dem Verfahren hergestellte Gießformteile
KR101364542B1 (ko) * 2011-08-11 2014-02-18 주식회사 풍산 연속주조 몰드용 동합금재 및 이의 제조 방법
CN102392154B (zh) * 2011-11-25 2014-04-02 汕头华兴冶金设备股份有限公司 一种高强高导铜合金材料

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3109438A1 (de) * 1981-03-12 1982-09-30 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover "verfahren zur herstellung von rohrfoermigen, geraden oder gekruemmten stranggiesskokillen mit parallelen oder konischen innenkonturen aus aushaertbaren kupferlegierungen"
JPS58107460A (ja) * 1981-12-21 1983-06-27 Chuetsu Gokin Chuko Kk 析出硬化型連続鋳造用鋳型材料
US4421570A (en) 1982-03-12 1983-12-20 Kabel Und Metallwerke Gutehoffnungshutte Ag Making molds for continuous casting
JPS58212839A (ja) * 1982-06-03 1983-12-10 Mitsubishi Metal Corp 連続鋳造鋳型用Ｃｕ合金
US4749548A (en) * 1985-09-13 1988-06-07 Mitsubishi Kinzoku Kabushiki Kaisha Copper alloy lead material for use in semiconductor device
JP2632818B2 (ja) * 1986-11-14 1997-07-23 三菱マテリアル株式会社 耐熱疲労性にすぐれた高強度銅合金
JPS63303020A (ja) * 1987-06-03 1988-12-09 Nippon Mining Co Ltd 摺動材料用銅合金
JPH01188642A (ja) * 1988-01-22 1989-07-27 Kobe Steel Ltd 電磁撹拌器を内蔵する連続鋳造用鋳型材料
EP0464151A4 (en) * 1989-03-20 1992-07-01 Olin Corporation In-mold electromagnetic stirring of molten metal during casting
JPH03191034A (ja) * 1989-12-21 1991-08-21 Nippon Mining Co Ltd 酸化膜密着性に優れた半導体機器のリード材用銅合金
JP2738130B2 (ja) * 1990-05-25 1998-04-08 三菱マテリアル株式会社 高冷却能を有する高強度Ｃｕ合金製連続鋳造鋳型材およびその製造法
JPH04210438A (ja) * 1990-12-13 1992-07-31 Mitsubishi Materials Corp 高強度Ｃｕ　合金製連続鋳造鋳型材
DE4142941A1 (de) 1991-12-24 1993-07-01 Kabelmetal Ag Verwendung einer aushaertbaren kupferlegierung

Also Published As

Publication number Publication date
ATE186076T1 (de) 1999-11-15
DE59507131D1 (de) 1999-12-02
KR960007802A (ko) 1996-03-22
ZA956181B (en) 1996-03-08
EP0702094A1 (de) 1996-03-20
FI953730A0 (fi) 1995-08-04
FI953730A (fi) 1996-02-07
US6565681B1 (en) 2003-05-20
KR100374051B1 (ko) 2003-05-09
DE4427939A1 (de) 1996-02-08
ES2139780T3 (es) 2000-02-16
PL309841A1 (en) 1996-02-19
PL177973B1 (pl) 2000-02-29
FI112669B (fi) 2003-12-31
RU2160648C2 (ru) 2000-12-20
CN1122837A (zh) 1996-05-22
JPH08104928A (ja) 1996-04-23
CN1058532C (zh) 2000-11-15

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