EP0517087A1 - Procédé pour la fabrication d'alliages de cuivre - Google Patents

Procédé pour la fabrication d'alliages de cuivre Download PDF

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Publication number
EP0517087A1
EP0517087A1 EP92108922A EP92108922A EP0517087A1 EP 0517087 A1 EP0517087 A1 EP 0517087A1 EP 92108922 A EP92108922 A EP 92108922A EP 92108922 A EP92108922 A EP 92108922A EP 0517087 A1 EP0517087 A1 EP 0517087A1
Authority
EP
European Patent Office
Prior art keywords
alloy
hours
content
cooling
solution annealing
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
EP92108922A
Other languages
German (de)
English (en)
Other versions
EP0517087B1 (fr
Inventor
Wolfgang Dr.-Ing. Hornig
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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 Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0517087A1 publication Critical patent/EP0517087A1/fr
Application granted granted Critical
Publication of EP0517087B1 publication Critical patent/EP0517087B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22C9/02—Alloys based on copper with tin as the next major constituent
    • 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 a process for the production of copper alloys of very high strength and very good formability, with a content of 2 to 10% nickel and 2 to 12% tin, the rest copper and usual impurities.
  • the invention relates generally to the field of precipitation hardening alloys, in particular so-called spinodal alloys.
  • the field of spinodal alloys is still little explored and it is known that there are not many spinodal alloy systems, but that there is still little clarity about the properties on the basis of which it can be determined whether a spinodal alloy is formed or not.
  • Spinodal alloys are distinguished from normal precipitation hardening alloys by a significantly increased strength due to an order of magnitude better, namely finer structure. This occurs because there are no precipitation particles in the metal matrix, but only diffusion zones in the range of nanometers. With the copper-nickel-tin alloy system, strength increases of two to three times the normal alloy are possible.
  • the object of the invention was therefore to provide, starting from a conventional alloy composition, a process which, compared to previously used processes, results in significantly higher strength and better formability in the resulting alloy.
  • the alloy produced according to the process explained above is not only characterized by an unusual strength, but also by excellent forming properties, i.e. very good deep drawability. Because of these properties, the new alloy is not only useful in the electronics industry, particularly in modules or in construction technology, there are also applications in automotive technology where, in addition to high strength, good corrosion resistance is required, there is also Possibility of use in aircraft technology for high-strength castings or in transmission technology. Due to the good material properties, an application is also conceivable where friction and wear are important.
  • nickel and tin levels are quite large, the higher levels for nickel and tin have proven to be particularly advantageous.
  • a ratio of the constituents nickel to tin between 0.3: 1 and 1: 1 has proven to be particularly favorable in the sense of the invention.
  • the cooling process between solution annealing and aging is not critical with regard to the cooling rate.
  • the cooling can take place both by quenching and at a medium cooling rate, for example when blowing with air.
  • the alloy can be cast not only in blocks, but also in strips, in which case a cold rolling process must follow before solution annealing.
  • the low manganese content mentioned is not mandatory in the sense of the invention, but is advantageous in order to achieve a pore-free casting.
  • the amount of manganese added must remain so small that the manganese does not become an alloy component. Due to the high affinity of the manganese for oxygen, the air present in the melt is bound, so that the casting is free of pores.
  • this usually means applying cold deformation, increase the strength of the alloy even more, but the ductility tends to decrease, as does the conductivity, at which average values of up to about 35% IACS can be achieved using the method according to the invention are.
  • the alloy is first cast in blocks. This is followed by solution annealing at a temperature of 750 ° C for four hours. After quenching the blocks in cold water, they are stored at a temperature of 320 ° C for 19.5 hours and finally cooled in an air stream.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Conductive Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP92108922A 1991-06-01 1992-05-27 Procédé pour la fabrication d'alliages de cuivre Expired - Lifetime EP0517087B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4118037 1991-06-01
DE4118037 1991-06-01
DE4215576A DE4215576A1 (de) 1991-06-01 1992-05-12 Verfahren zur herstellung von kupferlegierungen
DE4215576 1992-05-12

Publications (2)

Publication Number Publication Date
EP0517087A1 true EP0517087A1 (fr) 1992-12-09
EP0517087B1 EP0517087B1 (fr) 1996-02-28

Family

ID=25904167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92108922A Expired - Lifetime EP0517087B1 (fr) 1991-06-01 1992-05-27 Procédé pour la fabrication d'alliages de cuivre

Country Status (3)

Country Link
EP (1) EP0517087B1 (fr)
AT (1) ATE134715T1 (fr)
DE (2) DE4215576A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0833954A1 (fr) * 1995-06-07 1998-04-08 Castech, Inc. Alliage spinodal de cuivre-nickel-etain, non travaille et coule en continu
EP2971215A4 (fr) * 2013-03-14 2017-01-18 Materion Corporation Amélioration de l'aptitude au formage d'alliages corroyés de cuivre/nickel/étain
CN113201661A (zh) * 2021-04-25 2021-08-03 江苏青益金属科技股份有限公司 一种用于轿车座椅加热的合金丝材及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6716292B2 (en) * 1995-06-07 2004-04-06 Castech, Inc. Unwrought continuous cast copper-nickel-tin spinodal alloy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012240A (en) * 1975-10-08 1977-03-15 Bell Telephone Laboratories, Incorporated Cu-Ni-Sn alloy processing
US4142918A (en) * 1978-01-23 1979-03-06 Bell Telephone Laboratories, Incorporated Method for making fine-grained Cu-Ni-Sn alloys
US4260432A (en) * 1979-01-10 1981-04-07 Bell Telephone Laboratories, Incorporated Method for producing copper based spinodal alloys
US4406712A (en) * 1980-03-24 1983-09-27 Bell Telephone Laboratories, Incorporated Cu-Ni-Sn Alloy processing
US5019185A (en) * 1988-11-15 1991-05-28 Mitsubishi Denki Kabushiki Kaisha Method for producing high strength Cu-Ni-Sn alloy containing manganese

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928747A (en) * 1928-10-11 1933-10-03 Int Nickel Co Nonferrous alloy

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012240A (en) * 1975-10-08 1977-03-15 Bell Telephone Laboratories, Incorporated Cu-Ni-Sn alloy processing
US4142918A (en) * 1978-01-23 1979-03-06 Bell Telephone Laboratories, Incorporated Method for making fine-grained Cu-Ni-Sn alloys
US4260432A (en) * 1979-01-10 1981-04-07 Bell Telephone Laboratories, Incorporated Method for producing copper based spinodal alloys
US4406712A (en) * 1980-03-24 1983-09-27 Bell Telephone Laboratories, Incorporated Cu-Ni-Sn Alloy processing
US5019185A (en) * 1988-11-15 1991-05-28 Mitsubishi Denki Kabushiki Kaisha Method for producing high strength Cu-Ni-Sn alloy containing manganese

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0833954A1 (fr) * 1995-06-07 1998-04-08 Castech, Inc. Alliage spinodal de cuivre-nickel-etain, non travaille et coule en continu
EP0833954A4 (fr) * 1995-06-07 2005-08-31 Castech Inc Alliage spinodal de cuivre-nickel-etain, non travaille et coule en continu
EP2971215A4 (fr) * 2013-03-14 2017-01-18 Materion Corporation Amélioration de l'aptitude au formage d'alliages corroyés de cuivre/nickel/étain
EP3536819A1 (fr) * 2013-03-14 2019-09-11 Materion Corporation Procédé pour l'amélioration de l'aptitude au formage d'alliages corroyés de cuivre/nickel/étain
CN113201661A (zh) * 2021-04-25 2021-08-03 江苏青益金属科技股份有限公司 一种用于轿车座椅加热的合金丝材及其制备方法

Also Published As

Publication number Publication date
ATE134715T1 (de) 1996-03-15
DE4215576A1 (de) 1992-12-03
EP0517087B1 (fr) 1996-02-28
DE59205433D1 (de) 1996-04-04

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