DE60014251D1 - Gold alloy and process for its manufacture - Google Patents

Gold alloy and process for its manufacture

Info

Publication number
DE60014251D1
DE60014251D1 DE60014251T DE60014251T DE60014251D1 DE 60014251 D1 DE60014251 D1 DE 60014251D1 DE 60014251 T DE60014251 T DE 60014251T DE 60014251 T DE60014251 T DE 60014251T DE 60014251 D1 DE60014251 D1 DE 60014251D1
Authority
DE
Germany
Prior art keywords
alloy
manufacture
gold alloy
age
temperature
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
DE60014251T
Other languages
German (de)
Inventor
Peter Rotheram
Stewart Grice
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.)
Cookson Precious Metals Ltd
Original Assignee
Cookson Precious Metals Ltd
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 Cookson Precious Metals Ltd filed Critical Cookson Precious Metals Ltd
Application granted granted Critical
Publication of DE60014251D1 publication Critical patent/DE60014251D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C27/00—Making jewellery or other personal adornments
    • A44C27/001—Materials for manufacturing jewellery
    • A44C27/002—Metallic materials
    • A44C27/003—Metallic alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/02—Alloys based on gold
    • 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
    • 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
    • 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
    • C22F1/14—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of noble metals or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Adornments (AREA)
  • Manufacture Of Switches (AREA)
  • Display Devices Of Pinball Game Machines (AREA)

Abstract

An age-hardened Au-Ag-Cu-Zn quaternary alloy suitable for use in the manufacture of jewellery, the alloy comprising: Gold - from 35 to 40wt.% Silver - from 13 to 20wt.% Copper - from 35 to 45wt.% Zinc - from 4 to 10wt.% and optionally Silicon - from 0.01 to 0.5wt.% Boron - from 0.001 to 0.15wt.% wherein the alloy has a Vickers Hardness (Hv) of ≥ 200. The process involves solution treating the alloy at a temperature of up to the solidus temperature, cooling to ambient temperature and age-hardening in the range of from 200 to 400 DEG C. <IMAGE>
DE60014251T 1999-06-24 2000-06-22 Gold alloy and process for its manufacture Expired - Lifetime DE60014251D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9914833A GB2352452A (en) 1999-06-24 1999-06-24 A gold alloy and a process for the manufacture thereof

Publications (1)

Publication Number Publication Date
DE60014251D1 true DE60014251D1 (en) 2004-11-04

Family

ID=10856024

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60014251T Expired - Lifetime DE60014251D1 (en) 1999-06-24 2000-06-22 Gold alloy and process for its manufacture

Country Status (4)

Country Link
EP (1) EP1065288B1 (en)
AT (1) ATE278044T1 (en)
DE (1) DE60014251D1 (en)
GB (1) GB2352452A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9428821B2 (en) * 2009-05-12 2016-08-30 Jostens, Inc. Gold alloys
US20130129562A1 (en) * 2011-11-23 2013-05-23 Hoover & Strong, Inc. Pink colored metal alloy having low gold content
US9005522B2 (en) 2012-08-30 2015-04-14 Jostens, Inc. Silver alloy
CN109396364B (en) * 2018-12-11 2020-05-26 西安诺博尔稀贵金属材料有限公司 Preparation method of gold-silver-copper alloy cast ingot
CN113235031A (en) * 2021-04-26 2021-08-10 西安理工大学 Deformation aging method for improving mechanical property of Au-20Ag-10Cu

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042155A (en) * 1936-04-02 1936-05-26 Handy & Harman Alloy
US2216495A (en) * 1938-02-02 1940-10-01 Chemical Marketing Company Inc Manufacture of gold alloys
US2229463A (en) * 1939-10-21 1941-01-21 Handy & Harman Alloy
GB633310A (en) * 1948-02-23 1949-12-12 Johnson Matthey Co Ltd An improved alloy
US2654146A (en) * 1949-04-02 1953-10-06 Wilson H A Co Gold base alloy
FR2305503A1 (en) * 1975-03-27 1976-10-22 Louyot Comptoir Lyon Alemand Nine carat gold alloy with high m. pt. - for hollow jewellery
JPS5696038A (en) * 1979-12-28 1981-08-03 Seiko Instr & Electronics Ltd Gold alloy
JPS6077953A (en) * 1983-10-04 1985-05-02 Tanaka Kikinzoku Kogyo Kk Material for flute
JPS6357753A (en) * 1986-08-29 1988-03-12 Citizen Watch Co Ltd Manufacture of personal ornaments
US5045411A (en) * 1990-01-10 1991-09-03 P.M. Refining, Inc. Alloy compositions
GB9314292D0 (en) * 1993-07-10 1993-08-25 Johnson Matthey Plc Gold alloy
US5429795A (en) * 1993-11-12 1995-07-04 Mueller; Manfred 10-Carat gold alloy for ornaments
US5384089A (en) * 1994-05-02 1995-01-24 Diamond; Lawrence H. Yellow karat gold casting alloys

Also Published As

Publication number Publication date
GB9914833D0 (en) 1999-08-25
GB2352452A (en) 2001-01-31
EP1065288B1 (en) 2004-09-29
EP1065288A1 (en) 2001-01-03
ATE278044T1 (en) 2004-10-15

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Legal Events

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8332 No legal effect for de