EP0249740B1 - Verwendung einer Kupferlegierung - Google Patents

Verwendung einer Kupferlegierung Download PDF

Info

Publication number
EP0249740B1
EP0249740B1 EP87106904A EP87106904A EP0249740B1 EP 0249740 B1 EP0249740 B1 EP 0249740B1 EP 87106904 A EP87106904 A EP 87106904A EP 87106904 A EP87106904 A EP 87106904A EP 0249740 B1 EP0249740 B1 EP 0249740B1
Authority
EP
European Patent Office
Prior art keywords
alloy
copper
continuous casting
nickel
phosphorus
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
Application number
EP87106904A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0249740A3 (en
EP0249740A2 (de
Inventor
Horst Dipl.-Ing. Gravemann
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 Kabelmetal AG
Original Assignee
KM Kabelmetal 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 DE19863620655 external-priority patent/DE3620655A1/de
Application filed by KM Kabelmetal AG filed Critical KM Kabelmetal AG
Priority to AT87106904T priority Critical patent/ATE47543T1/de
Priority to IN479/CAL/87A priority patent/IN168332B/en
Publication of EP0249740A2 publication Critical patent/EP0249740A2/de
Publication of EP0249740A3 publication Critical patent/EP0249740A3/de
Application granted granted Critical
Publication of EP0249740B1 publication Critical patent/EP0249740B1/de
Expired 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
    • B22D11/059—Mould materials or platings
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Definitions

  • the invention relates to the use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, balance copper and manufacturing-related impurities for the mold wall of continuous casting molds.
  • Copper predominantly of the SF-Cu type, has long been used as a material for the production of continuous casting molds for the continuous casting of refractory metals such as steel, which, due to its high thermal conductivity, can dissipate the heat from the melt very quickly.
  • the wall thickness of the molds is chosen so large that it sufficiently meets the mechanical loads to be expected.
  • the invention consists in the use of a copper alloy consisting of 0.2 to 1.2% nickel, 0.04 to 0.25% phosphorus, the rest copper and production-related impurities as a material for continuous casting molds.
  • the nickel content is preferably 0.3 to 0.5% and the phosphorus content 0.06 to 0.1%, the ratio of nickel to phosphorus being between 3.5 and 7 to 1, preferably 5: 1.
  • the material is characterized by particularly favorable mechanical and physical properties. It has a thermal conductivity that is around 80% of that of pure copper.
  • the values for heat resistance, creep resistance and hot plasticity are also in an extremely favorable range for continuous casting molds.
  • the Brinell hardness as a benchmark for abrasion resistance reaches values of over 100.
  • Another essential requirement for continuous casting molds is high corrosion resistance, which is achieved by the copper-nickel-phosphorus alloy.
  • the physical properties that are placed on a continuous casting mold are not only limited to the conductivity and tensile strength, but it also depends on properties that could not easily be derived from US Pat. No. 2,155,405. Since the melt in contact with the mold wall in the case of steel has a temperature of more than 1300 ° C - the melting point of copper or copper alloys is around 1100 ° , so a high thermal conductivity is of course important. However, since the mold wall can reach a temperature of up to 450 ° C, the heat resistance is of crucial importance, ie the sharp drop in strength has to be shifted to a temperature range that is above the operating temperature of the mold.
  • the semi-hard temperature (recrystallization temperature) of the alloy used according to the invention is approximately 575 ° C.
  • Another important property of materials for continuous casting molds is the warm plasticity, which is determined by the elongation at break. A high elongation at break together with a high level of heat resistance leads to a material for continuous casting molds which shows only slight signs of wear and does not tend to form cracks under the thermal stresses in the area of the bath level. Finally, creep behavior at higher temperatures is an essential measure of the freedom from distortion.
  • a copper alloy with 0.43% nickel, 0.0801% phosphorus, the remainder copper and manufacturing-related impurities was shaped into a tube by extrusion after casting.
  • the tube was then solution annealed at 700 ° C for one hour. After solution annealing, one sample was cold worked by 10% and another sample by 20%. Both samples were then cured at 450 ° C for eight hours.
  • the alloy according to the teaching of the invention is less expensive to produce than a copper-chromium-zirconium alloy, since the solution annealing temperature is much lower than that of copper-chromium-zirconium and thus the risk of coarse grain formation and rejects is avoided.
  • the alloy partners in the alloy according to the invention are much cheaper.
  • the invention is of course not limited to the exemplary embodiment, but can also be used for the walls of molds of all kinds, with which molds can be made in half or full contours have metallic mold strands produced, for example tubular molds, block molds of all kinds, casting wheels, casting roll jackets, etc.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)
EP87106904A 1986-06-20 1987-05-12 Verwendung einer Kupferlegierung Expired EP0249740B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT87106904T ATE47543T1 (de) 1986-06-20 1987-05-12 Verwendung einer kupferlegierung.
IN479/CAL/87A IN168332B (es) 1986-06-20 1987-06-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863620655 DE3620655A1 (de) 1986-06-20 1986-06-20 Verwendung einer kupferlegierung
DE3620655 1986-06-20

Publications (3)

Publication Number Publication Date
EP0249740A2 EP0249740A2 (de) 1987-12-23
EP0249740A3 EP0249740A3 (en) 1988-04-20
EP0249740B1 true EP0249740B1 (de) 1989-10-25

Family

ID=6303308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106904A Expired EP0249740B1 (de) 1986-06-20 1987-05-12 Verwendung einer Kupferlegierung

Country Status (8)

Country Link
EP (1) EP0249740B1 (es)
JP (1) JP2540161B2 (es)
KR (1) KR920007884B1 (es)
DE (1) DE3760850D1 (es)
ES (1) ES2011467B3 (es)
FI (1) FI82893C (es)
MX (1) MX170389B (es)
ZA (1) ZA874022B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910004078B1 (ko) * 1987-08-31 1991-06-22 미쯔비시마테리알 가부시기가이샤 주형부재 및 급냉응고용 수냉회전로울러부재
FR2751990B1 (fr) * 1996-07-30 1998-10-02 Griset Ets Alliage a base de cuivre a conductivite electrique et a temperature d'adoucissement elevees pour des applications dans l'electronique
DE10032627A1 (de) * 2000-07-07 2002-01-17 Km Europa Metal Ag Verwendung einer Kupfer-Nickel-Legierung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155408A (en) * 1938-04-28 1939-04-25 Chase Brass & Copper Co Copper base alloys
US2155405A (en) * 1938-04-28 1939-04-25 Chase Brass & Copper Co Electrical conductor
AT234930B (de) * 1960-02-25 1964-07-27 Boehler & Co Ag Geb Stranggußkokillen zum Stranggießen von hochschmelzenden Metallen wie Eisen und Stahl, die im wesentlichen aus Kupfer bestehen
JPS5818981B2 (ja) * 1980-06-06 1983-04-15 日本鉱業株式会社 半導体機器のリ−ド材用銅合金
JPS58104148A (ja) * 1981-12-14 1983-06-21 Furukawa Electric Co Ltd:The 半導体機器のリ−ド材用銅合金
JPS60238432A (ja) * 1984-12-27 1985-11-27 Mitsubishi Metal Corp 連続鋳造鋳型用Ｃｕ合金

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 92, 1980, Seite 271, Zusammenfassungsnr. 133155a, Columbus, Ohio, US; T. USHIO et al.: "Mold for cntinuous casting"; JP - A - 79 124 831 (MISHIMA KOSAN) 28.09.1979 *

Also Published As

Publication number Publication date
KR920007884B1 (ko) 1992-09-18
ES2011467B3 (es) 1990-01-16
MX170389B (es) 1993-08-19
DE3760850D1 (en) 1989-11-30
EP0249740A3 (en) 1988-04-20
FI82893B (fi) 1991-01-31
FI872327A (fi) 1987-12-21
JP2540161B2 (ja) 1996-10-02
FI82893C (fi) 1991-05-10
KR880000609A (ko) 1988-03-28
FI872327A0 (fi) 1987-05-26
JPS6324028A (ja) 1988-02-01
ZA874022B (en) 1987-12-04
EP0249740A2 (de) 1987-12-23

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