EP0381994A1 - Alliage à haute teneur en or pour pièces de bijouterie - Google Patents
Alliage à haute teneur en or pour pièces de bijouterie Download PDFInfo
- Publication number
- EP0381994A1 EP0381994A1 EP90101360A EP90101360A EP0381994A1 EP 0381994 A1 EP0381994 A1 EP 0381994A1 EP 90101360 A EP90101360 A EP 90101360A EP 90101360 A EP90101360 A EP 90101360A EP 0381994 A1 EP0381994 A1 EP 0381994A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gold
- alloys
- addition
- gallium
- alloy
- 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
- 239000000956 alloy Substances 0.000 title claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 29
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000010931 gold Substances 0.000 title claims abstract description 20
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 20
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 12
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 10
- 239000010941 cobalt Substances 0.000 claims abstract description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 8
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 7
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052738 indium Inorganic materials 0.000 claims abstract description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052718 tin Inorganic materials 0.000 claims abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000002739 metals Chemical class 0.000 claims abstract description 4
- 238000007792 addition Methods 0.000 claims description 17
- 229910001020 Au alloy Inorganic materials 0.000 claims description 7
- 239000003353 gold alloy Substances 0.000 claims description 7
- 239000010953 base metal Substances 0.000 claims 1
- 238000005530 etching Methods 0.000 claims 1
- 229910052728 basic metal Inorganic materials 0.000 abstract 1
- 150000003818 basic metals Chemical class 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
Definitions
- Gold alloys which have certain commercially available gold contents have long been known for producing jewelry.
- One of the best known alloys contains 750/000 gold (18 kt) and is usually alloyed with copper and silver.
- the mechanical, physical and chemical properties of these alloys can be optimally matched to their respective use as jewelry alloys.
- Alloys of this type must be readily deformable in order to be able to produce sheet metal, wire and tube in the dimensions desired in each case. They must also have a minimum stability, for example for the production of delicate jewelry or watch straps, and in addition sufficient Hardness and sufficiently high elongation at break are available.
- the alloys for the production of castings are easy to cast, that is to say that, in addition to good flowability in the molten state, they also have a high resistance to oxidation. It is also essential that high-quality gold alloys for jewelry purposes are tarnish-resistant even when worn for a long time. Finally, certain demands are made on the color of gold alloys.
- the material value of a piece of jewelry is essentially determined by the gold content of the alloy. There is therefore often a desire among buyers to purchase an alloy that contains as much gold as possible. In line with this is the demand for a color as close as possible to that of pure gold. Another advantage is that the higher the gold content, the better the tarnish resistance.
- the object of the invention is to provide alloys which, with a gold content of 950/000 (approx. 23 kt) and higher, have the properties required for use for jewelry purposes.
- such alloys consist of 95 to 99.5% gold with additions of iron, germanium, gallium, indium, cobalt, copper, rhenium, tantalum, vanadium, tin and zirconium.
- the additional metals result alone or in combination with fine gold alloys that are useful for jewelry purposes.
- the table shows some exemplary alloys with the above-mentioned additional metals and their properties.
- the hardness in the soft annealed state can be increased two to three times that of fine gold.
- All alloys are also characterized by a high degree of deformation and an associated, substantial increase in hardness. They thus meet the essential requirements that are placed on jewelry alloys.
- the hardness can be increased particularly effectively by adding iron, cobalt and gallium.
- the alloys are homogeneous both in the cast and in the recrystallized state and therefore behave like fine gold in terms of tarnish resistance.
- the addition of gallium, germanium, indium and tin reduce the melting interval and have a favorable effect on the flowability during casting.
- the machining is favorably influenced by adding cobalt, rhenium, tantalum, vanadium and / or zirconium.
- Gallium, cobalt, copper and rhenium significantly increase the abrasion resistance of the alloys during wear.
- the barrel properties are improved.
- the alloys with 99% gold with the addition of germanium, gallium, cobalt and zirconium have a rich yellow fine gold color.
- the alloys described do not have these disadvantages, but can be soldered without problems without forming disruptive scale layers on the surface.
- the casting surface is clean and free of oxides after the investment has been removed.
- the alloys according to the invention can also be processed into watch cases, watch straps, coins and medals.
- table High gold holding jewelry alloys Current No Composition in% mass content Hardness HV5 annealed Hardness HV5 80% deformed Melting interval ° C Au other 1 95 5.0 Fe 70 180 1040 2nd 95 4.0 Ga, 1.0 Fe 75 190 900 - 750 3rd 96 4.0 in 60 130 1020 - 920 4th 96 4.0 Co 80 190 1020-1010 5 96 3.0 Cu, 1.0 Re 70 140 1030-1000 6 97 3.0 Sn 75 150 980 - 790 7 98 1.0 Sn, 1.0 Ta 65 120 950-810 8th 98 1.0 in, 1.0 v 60 110 1030 - 930 9 99 1.0 ir 55 130 1064 10th 99 1.0 Ga 60 130 1040 - 870 11 99 1.0 Ge 50 120 1030 - 780 12 99 0.8 Cu, 0.2 Ga 60 135 1040 - 970
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3903733 | 1989-02-09 | ||
| DE3903733 | 1989-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0381994A1 true EP0381994A1 (fr) | 1990-08-16 |
| EP0381994B1 EP0381994B1 (fr) | 1995-09-27 |
Family
ID=6373652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90101360A Expired - Lifetime EP0381994B1 (fr) | 1989-02-09 | 1990-01-24 | Alliage à haute teneur en or pour pièces de bijouterie |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0381994B1 (fr) |
| DE (1) | DE59009704D1 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123786A (en) * | 1993-09-06 | 2000-09-26 | Mitsubishi Materials Corporation | Gold materials for accessories hardened with minor alloying components |
| AT407830B (de) * | 1999-09-10 | 2001-06-25 | Degussa Huels Cee Gmbh | Hochgoldhaltige, gelbe dentallegierung |
| EP1266974A1 (fr) * | 2001-05-30 | 2002-12-18 | Leg.Or S.r.l | Alliages d'or et alliages-mères pour leur obtention |
| WO2014087216A1 (fr) | 2012-12-03 | 2014-06-12 | Argor-Heraeus Sa | Alliage d'or résistant à la décoloration |
| CN109182824A (zh) * | 2018-10-12 | 2019-01-11 | 佛山科学技术学院 | 一种耐氧化玫瑰金镀层及其制备工艺 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR722290A (fr) * | 1930-11-22 | 1932-03-15 | Cartier | Alliage contenant de l'or comme principal élément, du cobalt et, au besoin, d'autres additions |
| DE643568C (de) * | 1934-01-21 | 1937-04-12 | W Guertler Dr | Verwendung von Gold-Zirkon-Legierungen |
| FR2155824A1 (en) * | 1971-10-08 | 1973-05-25 | Duerrwaechter E Dr Doduco | Casting filigree type jewellry by addition of film forming - elements to noble metals for stripping mould material from casting |
| US3892564A (en) * | 1972-10-03 | 1975-07-01 | Johnson Matthey Co Ltd | Dental alloys |
| DE2803949A1 (de) * | 1978-01-30 | 1979-08-02 | Int Gold Corp Ltd | Feinkoernige goldlegierungen |
| DE3709972A1 (de) * | 1987-03-26 | 1988-10-06 | Holzer Walter | Gold-schmucklegierung |
-
1990
- 1990-01-24 EP EP90101360A patent/EP0381994B1/fr not_active Expired - Lifetime
- 1990-01-24 DE DE59009704T patent/DE59009704D1/de not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR722290A (fr) * | 1930-11-22 | 1932-03-15 | Cartier | Alliage contenant de l'or comme principal élément, du cobalt et, au besoin, d'autres additions |
| DE643568C (de) * | 1934-01-21 | 1937-04-12 | W Guertler Dr | Verwendung von Gold-Zirkon-Legierungen |
| FR2155824A1 (en) * | 1971-10-08 | 1973-05-25 | Duerrwaechter E Dr Doduco | Casting filigree type jewellry by addition of film forming - elements to noble metals for stripping mould material from casting |
| US3892564A (en) * | 1972-10-03 | 1975-07-01 | Johnson Matthey Co Ltd | Dental alloys |
| DE2803949A1 (de) * | 1978-01-30 | 1979-08-02 | Int Gold Corp Ltd | Feinkoernige goldlegierungen |
| DE3709972A1 (de) * | 1987-03-26 | 1988-10-06 | Holzer Walter | Gold-schmucklegierung |
Non-Patent Citations (1)
| Title |
|---|
| METALL, Nr. 7, 1980, Seiten 629-633; D. OTT et al.: "Einfluss kleiner Zusätze auf die Eigenschaften von Gold und Goldlegierungen - Teil 1: Gold" * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123786A (en) * | 1993-09-06 | 2000-09-26 | Mitsubishi Materials Corporation | Gold materials for accessories hardened with minor alloying components |
| AT407830B (de) * | 1999-09-10 | 2001-06-25 | Degussa Huels Cee Gmbh | Hochgoldhaltige, gelbe dentallegierung |
| EP1266974A1 (fr) * | 2001-05-30 | 2002-12-18 | Leg.Or S.r.l | Alliages d'or et alliages-mères pour leur obtention |
| WO2014087216A1 (fr) | 2012-12-03 | 2014-06-12 | Argor-Heraeus Sa | Alliage d'or résistant à la décoloration |
| US10030296B2 (en) | 2012-12-03 | 2018-07-24 | Argor-Heraeus Sa | Discoloration-resistant gold alloy |
| US10683570B2 (en) | 2012-12-03 | 2020-06-16 | Argor-Heraeus Sa | Discoloration-resistant gold alloy |
| CN109182824A (zh) * | 2018-10-12 | 2019-01-11 | 佛山科学技术学院 | 一种耐氧化玫瑰金镀层及其制备工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59009704D1 (de) | 1995-11-02 |
| EP0381994B1 (fr) | 1995-09-27 |
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