ATE409754T1 - METHOD FOR PRODUCING PRODUCTS OR SEMI-FINISHED PRODUCTS FROM A SILVER ALLOY CONTAINING COPPER AND GERMANIUM - Google Patents
METHOD FOR PRODUCING PRODUCTS OR SEMI-FINISHED PRODUCTS FROM A SILVER ALLOY CONTAINING COPPER AND GERMANIUMInfo
- Publication number
- ATE409754T1 ATE409754T1 AT05744101T AT05744101T ATE409754T1 AT E409754 T1 ATE409754 T1 AT E409754T1 AT 05744101 T AT05744101 T AT 05744101T AT 05744101 T AT05744101 T AT 05744101T AT E409754 T1 ATE409754 T1 AT E409754T1
- Authority
- AT
- Austria
- Prior art keywords
- semi
- germanium
- silver alloy
- finished
- products
- Prior art date
Links
- 229910001316 Ag alloy Inorganic materials 0.000 title abstract 3
- 229910052732 germanium Inorganic materials 0.000 title abstract 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000047 product Substances 0.000 title 1
- 239000011265 semifinished product Substances 0.000 title 1
- 238000000034 method Methods 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000005494 tarnishing Methods 0.000 abstract 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Adornments (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Metal Extraction Processes (AREA)
Abstract
A process is provided for making a finished or semi-finished article of silver alloy, said process comprising steps of: providing a silver alloy containing silver in an amount of at least 77 wt %, copper and an amount of germanium that is at least 0.5 wt % and is effective to reduce tarnishing and/or firestain; making or processing the finished or semi-finished article of the alloy by heating at least to an annealing temperature; and gradually air cooling the article from the temperature at which it is made or processed to develop a Vickers hardness of more than 70.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0412256A GB2414739B (en) | 2004-06-02 | 2004-06-02 | Process for making finished or semi-finished articles of silver alloy |
| GBGB0421172.8A GB0421172D0 (en) | 2004-06-02 | 2004-09-23 | Process for making finished or semi-finished articles of silver alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE409754T1 true ATE409754T1 (en) | 2008-10-15 |
Family
ID=34970034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT05744101T ATE409754T1 (en) | 2004-06-02 | 2005-05-27 | METHOD FOR PRODUCING PRODUCTS OR SEMI-FINISHED PRODUCTS FROM A SILVER ALLOY CONTAINING COPPER AND GERMANIUM |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20070251610A1 (en) |
| EP (1) | EP1751322B1 (en) |
| JP (1) | JP2008501857A (en) |
| AT (1) | ATE409754T1 (en) |
| AU (1) | AU2005250225A1 (en) |
| CA (1) | CA2567033A1 (en) |
| DE (1) | DE602005010072D1 (en) |
| ES (1) | ES2318490T3 (en) |
| MX (1) | MXPA06013685A (en) |
| PT (1) | PT1751322E (en) |
| WO (1) | WO2005118903A1 (en) |
Families Citing this family (11)
| 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 |
| GB2428045A (en) * | 2005-07-07 | 2007-01-17 | Middlesex Silver Co Ltd | Silver-copper-germanium alloy |
| EP1888797A1 (en) * | 2005-05-20 | 2008-02-20 | Middlesex Silver Co. Limited | Silver-copper-germanium alloy manufacturing |
| US9194024B1 (en) | 2010-05-17 | 2015-11-24 | Stuller, Inc. | Jewelry article of white precious metals and methods for making the same |
| US9217190B2 (en) | 2011-09-01 | 2015-12-22 | Stuller, Inc. | Sterling silver alloy and articles made from same |
| GB201117877D0 (en) * | 2011-10-17 | 2011-11-30 | Johnson Matthey Plc | Silver alloy |
| RU2502816C1 (en) * | 2012-12-18 | 2013-12-27 | Юлия Алексеевна Щепочкина | Silver-base alloy |
| RU2525975C1 (en) * | 2013-08-13 | 2014-08-20 | Юлия Алексеевна Щепочкина | Silver-based alloy |
| WO2020109985A1 (en) * | 2018-11-26 | 2020-06-04 | Majid Khan | Method for preparing an alloy of silver and copper for articles |
| WO2021221575A1 (en) * | 2020-04-28 | 2021-11-04 | Odak Sanat Hobi Ve Kraft Sanayi Dis Ticaret Limited Sirketi | Silver clays suitable for production of tarnish resistant jewelry |
| WO2025155724A1 (en) * | 2024-01-16 | 2025-07-24 | Doggone Investment Co. LLC | High purity copper-based alloys formed using inert gas |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124380A (en) * | 1977-06-24 | 1978-11-07 | Youdelis William V | Silver-copper-germanium alloys having high oxidation resistant melts |
| US4392289A (en) * | 1981-06-01 | 1983-07-12 | Charles Hoffert Of America, Inc. | Manufacture of jewelry by casting with preset gems |
| US4810308A (en) * | 1987-04-13 | 1989-03-07 | Leach & Garner Company | Silver alloys of exceptional and reversible hardness |
| FR2675817B1 (en) * | 1991-04-29 | 1993-08-20 | Metaleurop Rech | NEW TERNARY ALLOY BASED ON SILVER. |
| DE4323227C1 (en) * | 1993-07-12 | 1994-07-28 | Degussa | Cadmium-free silver alloy used as solder at temps. below 630 deg.C. |
| FI963803L (en) * | 1993-11-15 | 1996-09-24 | Apecs Investment Castings Pty | 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 |
| GB0112623D0 (en) * | 2001-05-23 | 2001-07-18 | Johns Peter G | Method of producing silver-copper alloys |
-
2005
- 2005-05-27 PT PT05744101T patent/PT1751322E/en unknown
- 2005-05-27 AT AT05744101T patent/ATE409754T1/en not_active IP Right Cessation
- 2005-05-27 DE DE602005010072T patent/DE602005010072D1/en not_active Expired - Lifetime
- 2005-05-27 EP EP05744101A patent/EP1751322B1/en not_active Expired - Lifetime
- 2005-05-27 WO PCT/GB2005/050074 patent/WO2005118903A1/en not_active Ceased
- 2005-05-27 ES ES05744101T patent/ES2318490T3/en not_active Expired - Lifetime
- 2005-05-27 CA CA002567033A patent/CA2567033A1/en not_active Abandoned
- 2005-05-27 JP JP2007514144A patent/JP2008501857A/en not_active Withdrawn
- 2005-05-27 US US11/628,260 patent/US20070251610A1/en not_active Abandoned
- 2005-05-27 MX MXPA06013685A patent/MXPA06013685A/en unknown
- 2005-05-27 AU AU2005250225A patent/AU2005250225A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1751322B1 (en) | 2008-10-01 |
| JP2008501857A (en) | 2008-01-24 |
| US20070251610A1 (en) | 2007-11-01 |
| MXPA06013685A (en) | 2007-02-13 |
| EP1751322A1 (en) | 2007-02-14 |
| WO2005118903A1 (en) | 2005-12-15 |
| PT1751322E (en) | 2009-01-12 |
| CA2567033A1 (en) | 2005-12-15 |
| DE602005010072D1 (en) | 2008-11-13 |
| AU2005250225A1 (en) | 2005-12-15 |
| ES2318490T3 (en) | 2009-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |