FR2305503A1 - Nine carat gold alloy with high m. pt. - for hollow jewellery - Google Patents
Nine carat gold alloy with high m. pt. - for hollow jewelleryInfo
- Publication number
- FR2305503A1 FR2305503A1 FR7509711A FR7509711A FR2305503A1 FR 2305503 A1 FR2305503 A1 FR 2305503A1 FR 7509711 A FR7509711 A FR 7509711A FR 7509711 A FR7509711 A FR 7509711A FR 2305503 A1 FR2305503 A1 FR 2305503A1
- Authority
- FR
- France
- Prior art keywords
- alloy
- carat
- jewellery
- gold alloy
- hollow
- 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
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
- C22C5/02—Alloys based on gold
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
Abstract
A 9 carat Au alloy contg. (by wt.) 37.5% Au, is approx. 3.5-9% Ag, is approx. 0-15% Zn and bal. Cu, a composite of this alloy and a base metal or alloy, and hollow Au jewellery made from this composite are described. The alloy is used to produce links for chains and bracelets and also for making rings. Used to make hollow jewellery by a process in which the supporting base metal is dissolved in 5% HNO3 or H2SO4. Other 9 carat alloys are usually attacked by this acid and cannot be used to make hollow jewellery. This Au alloy also has a higher m.pt. making it suitable for brazing. After brazing, e.g. to form a ring, the supporting metal is dissolved in acid. The colour of the alloy is also similar to 18 carat Au alloys.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7509711A FR2305503A1 (en) | 1975-03-27 | 1975-03-27 | Nine carat gold alloy with high m. pt. - for hollow jewellery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7509711A FR2305503A1 (en) | 1975-03-27 | 1975-03-27 | Nine carat gold alloy with high m. pt. - for hollow jewellery |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2305503A1 true FR2305503A1 (en) | 1976-10-22 |
FR2305503B1 FR2305503B1 (en) | 1980-04-18 |
Family
ID=9153213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7509711A Granted FR2305503A1 (en) | 1975-03-27 | 1975-03-27 | Nine carat gold alloy with high m. pt. - for hollow jewellery |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2305503A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3001591A1 (en) * | 1979-01-18 | 1980-07-31 | Murao Shoten | GOLD ALLOY |
FR2647711A1 (en) * | 1989-05-31 | 1990-12-07 | Fix Bijoux | Gold alloy composite and coated jewellery item produced from this composite |
EP0665297A1 (en) * | 1993-11-12 | 1995-08-02 | Manfred Müller | Gold alloy for jewellery |
EP1065288A1 (en) * | 1999-06-24 | 2001-01-03 | Cookson Precious Metals Ltd. | A gold alloy and a process for the manufacture thereof |
GB2375034A (en) * | 2001-05-04 | 2002-11-06 | C W Jewellery Manufacturers Lt | A hollow metal jewellery ring |
CN112410643A (en) * | 2019-08-23 | 2021-02-26 | 奥米加股份有限公司 | Timepiece or piece of jewellery or jewel made of gold |
-
1975
- 1975-03-27 FR FR7509711A patent/FR2305503A1/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3001591A1 (en) * | 1979-01-18 | 1980-07-31 | Murao Shoten | GOLD ALLOY |
FR2446864A1 (en) * | 1979-01-18 | 1980-08-14 | Murao Shoten | TYPE 8 TO 12 CARAT GOLD ALLOYS AND ARTICLES WITH EXTERNAL SURFACE POLISHED IN SUCH ALLOYS |
FR2647711A1 (en) * | 1989-05-31 | 1990-12-07 | Fix Bijoux | Gold alloy composite and coated jewellery item produced from this composite |
EP0665297A1 (en) * | 1993-11-12 | 1995-08-02 | Manfred Müller | Gold alloy for jewellery |
EP1065288A1 (en) * | 1999-06-24 | 2001-01-03 | Cookson Precious Metals Ltd. | A gold alloy and a process for the manufacture thereof |
GB2375034A (en) * | 2001-05-04 | 2002-11-06 | C W Jewellery Manufacturers Lt | A hollow metal jewellery ring |
CN112410643A (en) * | 2019-08-23 | 2021-02-26 | 奥米加股份有限公司 | Timepiece or piece of jewellery or jewel made of gold |
US11441210B2 (en) | 2019-08-23 | 2022-09-13 | Omega Sa | Timepiece or piece of jewellery or gemstone jewellery made of gold |
Also Published As
Publication number | Publication date |
---|---|
FR2305503B1 (en) | 1980-04-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |