DE602005006822D1 - METHOD FOR PRODUCING A COPPER GERMANIUM BOR PRE-ALLOY AND USE THEREOF FOR THE PRODUCTION OF SILVER COPPER ALLOYS - Google Patents

METHOD FOR PRODUCING A COPPER GERMANIUM BOR PRE-ALLOY AND USE THEREOF FOR THE PRODUCTION OF SILVER COPPER ALLOYS

Info

Publication number
DE602005006822D1
DE602005006822D1 DE602005006822T DE602005006822T DE602005006822D1 DE 602005006822 D1 DE602005006822 D1 DE 602005006822D1 DE 602005006822 T DE602005006822 T DE 602005006822T DE 602005006822 T DE602005006822 T DE 602005006822T DE 602005006822 D1 DE602005006822 D1 DE 602005006822D1
Authority
DE
Germany
Prior art keywords
alloy
silver
copper
boron
master
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
DE602005006822T
Other languages
German (de)
Inventor
Peter Gamon Johns
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.)
Argentium International Ltd
Original Assignee
Middlesex Silver Co 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
Priority claimed from GB0421179A external-priority patent/GB2418432A/en
Application filed by Middlesex Silver Co Ltd filed Critical Middlesex Silver Co Ltd
Publication of DE602005006822D1 publication Critical patent/DE602005006822D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C22C5/06—Alloys based on silver
    • C22C5/08—Alloys based on silver with copper as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Adornments (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A master metal composition adapted for alloying with silver to give an alloy containing at least 77 wt % Ag and at least 0.5 wt % Ge comprises Cu, Ge and boron together with any further ingredients for said alloy and any impurities. It further provides a process for making silver alloy containing silver in an amount of at least 77 wt % Ag, 1-7.2 wt % Cu copper, at least 0.5 wt % Ge and B together with any further ingredients for said alloy and any impurities, comprising the step of melting together fine silver and a master metal composition which is at least a ternary alloy of copper, germanium and boron, e.g. 92.5-92.8 wt % Ag, 6.0-6.3 wt % Cu, about 1.2 wt % Ge and 1-15 ppm boron as grain refiner. The resulting silver alloy exhibits good tarnish and firestain resistance and can exhibit significant precipitation hardening on gradual air cooling. In a further aspect the invention relates to method for manufacturing a copper-based master alloy for use in the manufacture of silver alloy products, wherein the molten master alloy prior to solidification is treated with a decomposable boron compound e.g. a boron hydride or metal borohydride.
DE602005006822T 2004-09-23 2005-09-23 METHOD FOR PRODUCING A COPPER GERMANIUM BOR PRE-ALLOY AND USE THEREOF FOR THE PRODUCTION OF SILVER COPPER ALLOYS Active DE602005006822D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0421179A GB2418432A (en) 2004-09-23 2004-09-23 Silver alloy and its production using a master metal
GB0508501A GB0508501D0 (en) 2004-09-23 2005-04-27 Metal alloy and its use
PCT/GB2005/050163 WO2006032933A1 (en) 2004-09-23 2005-09-23 Copper-boron master alloy and its use in making silver-copper alloys

Publications (1)

Publication Number Publication Date
DE602005006822D1 true DE602005006822D1 (en) 2008-06-26

Family

ID=35432080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005006822T Active DE602005006822D1 (en) 2004-09-23 2005-09-23 METHOD FOR PRODUCING A COPPER GERMANIUM BOR PRE-ALLOY AND USE THEREOF FOR THE PRODUCTION OF SILVER COPPER ALLOYS

Country Status (8)

Country Link
US (1) US20080078484A1 (en)
EP (1) EP1794335B1 (en)
JP (1) JP2008513607A (en)
AT (1) ATE395442T1 (en)
AU (1) AU2005286209A1 (en)
CA (1) CA2580960A1 (en)
DE (1) DE602005006822D1 (en)
WO (1) WO2006032933A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9222150B2 (en) 2004-06-02 2015-12-29 Peter Gamon Johns Process for making finished or semi-finished articles of silver alloy
GB2485374B (en) * 2010-11-11 2013-07-24 Argentium Internat Ltd Alloy for investment casting
GB2426250A (en) * 2005-05-20 2006-11-22 Middlesex Silver Co Ltd Silver alloys
WO2006123190A1 (en) * 2005-05-20 2006-11-23 Middlesex Silver Co. Limited Silver-copper-germanium alloy manufacturing
GB2428045A (en) * 2005-07-07 2007-01-17 Middlesex Silver Co Ltd Silver-copper-germanium alloy
US20060231171A1 (en) * 2005-04-19 2006-10-19 Davis Samuel A Method for adding boron to metal alloys
GB2434376A (en) * 2006-01-23 2007-07-25 Middlesex Silver Co Ltd Making boron containing gold alloys using a master alloy
EP1930478B1 (en) * 2006-12-06 2013-06-19 Enthone, Inc. Electrolyte composition and method for the deposition of quaternary copper alloys
US8501088B2 (en) * 2007-07-25 2013-08-06 Nippon Steel & Sumikin Materials Co., Ltd. Solder alloy, solder ball and electronic member having solder bump
WO2009034834A1 (en) * 2007-09-10 2009-03-19 Murata Manufacturing Co., Ltd. Ceramic multilayer substrate and method for producing the same
KR101283580B1 (en) * 2011-12-14 2013-07-05 엠케이전자 주식회사 Tin-based solder ball and semiconductor package including the same
JP2014047127A (en) * 2012-09-04 2014-03-17 Toyo Tanso Kk Metal-carbon composite material, manufacturing method of metal-carbon composite material, and sliding member
RU2513502C1 (en) * 2013-04-16 2014-04-20 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" White alloy based on 925-assay silver modified by silicon
CN103643072B (en) * 2013-11-20 2015-12-09 北海鑫利坤金属材料科技开发有限公司 A kind of silver alloy with excellent mechanical performances
CN107208186A (en) * 2014-11-28 2017-09-26 迭戈·佩雷蒂 Foundry alloy for manufacturing White gold alloy
GB2561376A (en) * 2017-04-12 2018-10-17 Argentium International Ltd Silver alloys, investment casting using the alloys and casting grain
WO2023196341A1 (en) 2022-04-05 2023-10-12 Doggone Investment Co. LLC Apparatus and method for production of high purity copper-based alloys
CN114990378B (en) * 2022-06-14 2023-03-10 西安理工大学 Preparation method of high-conductivity and high-wear-resistance copper-boron alloy

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406370A (en) * 1980-03-29 1983-09-27 Foseco International Limited Additive containers for metal casting
US5039479A (en) * 1990-09-05 1991-08-13 United Precious Metal Refining Co., Inc. Silver alloy compositions, and master alloy compositions therefor
US6726877B1 (en) * 1993-11-15 2004-04-27 Anthony Phillip Eccles Silver alloy compositions
US6168071B1 (en) * 1994-11-17 2001-01-02 Peter Gamon Johns Method for joining materials together by a diffusion process using silver/germanium alloys and a silver/germanium alloy for use in the method
US6217632B1 (en) * 1998-06-03 2001-04-17 Joseph A. Megy Molten aluminum treatment
GB9926313D0 (en) * 1999-11-05 2000-01-12 Johns Peter G A silver/copper/germanium alloy composition
GB0112623D0 (en) * 2001-05-23 2001-07-18 Johns Peter G Method of producing silver-copper alloys

Also Published As

Publication number Publication date
ATE395442T1 (en) 2008-05-15
US20080078484A1 (en) 2008-04-03
EP1794335B1 (en) 2008-05-14
JP2008513607A (en) 2008-05-01
WO2006032933A1 (en) 2006-03-30
CA2580960A1 (en) 2006-03-30
EP1794335A1 (en) 2007-06-13
AU2005286209A1 (en) 2006-03-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ARGENTIUM INTERNATIONAL LIMITED, SURREY, GB

8328 Change in the person/name/address of the agent

Representative=s name: BOEHMERT & BOEHMERT, 28209 BREMEN