EP3527678B1 - Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung - Google Patents
Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung Download PDFInfo
- Publication number
- EP3527678B1 EP3527678B1 EP18156884.1A EP18156884A EP3527678B1 EP 3527678 B1 EP3527678 B1 EP 3527678B1 EP 18156884 A EP18156884 A EP 18156884A EP 3527678 B1 EP3527678 B1 EP 3527678B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- gold
- copper
- palladium
- tin
- 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.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 40
- 239000010949 copper Substances 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 7
- 229910001020 Au alloy Inorganic materials 0.000 title description 12
- 229910000881 Cu alloy Inorganic materials 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 claims description 114
- 239000000956 alloy Substances 0.000 claims description 114
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 83
- 229910052763 palladium Inorganic materials 0.000 claims description 41
- 229910052802 copper Inorganic materials 0.000 claims description 35
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 34
- 239000010931 gold Substances 0.000 claims description 34
- 229910052737 gold Inorganic materials 0.000 claims description 34
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 29
- 229910052718 tin Inorganic materials 0.000 claims description 29
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 27
- 239000011135 tin Substances 0.000 claims description 27
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 26
- 229910052709 silver Inorganic materials 0.000 claims description 26
- 239000004332 silver Substances 0.000 claims description 26
- 229910052719 titanium Inorganic materials 0.000 claims description 25
- 239000010936 titanium Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 150000002739 metals Chemical class 0.000 claims description 11
- 238000010791 quenching Methods 0.000 claims description 11
- 230000000171 quenching effect Effects 0.000 claims description 11
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 9
- 229910052741 iridium Inorganic materials 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910052702 rhenium Inorganic materials 0.000 claims description 8
- 229910052707 ruthenium Inorganic materials 0.000 claims description 8
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 7
- 239000011733 molybdenum Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005275 alloying Methods 0.000 claims description 2
- 239000003353 gold alloy Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 238000002845 discoloration Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 229910001112 rose gold Inorganic materials 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 210000004243 sweat Anatomy 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000002087 whitening effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 239000010939 rose gold Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- VGKBMHKQXGOCSP-UHFFFAOYSA-N [S].CC(N)=S Chemical compound [S].CC(N)=S VGKBMHKQXGOCSP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000010930 yellow gold Substances 0.000 description 1
- 229910001097 yellow gold Inorganic materials 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Images
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
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
Definitions
- the present invention relates to an alloy based on gold and copper.
- This alloy pink (4N) or red (5N and 6N), can be used in particular in the fields of jewelry and watchmaking.
- an alloy comprising 75% by mass of gold, 12.5% of copper and 12.5% of silver corresponds to yellow gold.
- An alloy comprising 75% gold, 20% copper and 5% agent corresponds to rose gold.
- an alloy (Au750 Pd125 Ag30 Cu95) comprising for example 75% gold, 30% silver, 125% palladium and 95% copper corresponds to gray gold.
- the color of the alloy can be determined using the CIE L * a * b * color space, the CIE being the International Commission on Illumination.
- CIE being the International Commission on Illumination.
- conventional rose or red gold alloys gold, silver and copper correspond to zones 4N, 5N and 6N of the figure 2 .
- the document WO 2015/038636 describes an alloy not containing tin. This alloy comprises 12.7 to 14.7% silver, 9.3 to 11.3% copper, 0.5 to 2% palladium, the remainder being gold.
- the document GB 2447620 describes an alloy comprising gold and tin.
- the Applicant has developed a gold-based alloy making it possible to solve the problems of discoloration of the alloys of the prior art thanks to the presence of specific amounts of several metals.
- the CIE L * a * b * coordinates can in particular be obtained by means of a conventional spectrophotometer, by measuring the reflectance properties as a function of the illumination wavelength.
- the alloy according to the invention can comprise titanium, advantageously between 0.05% and 2% by mass relative to the mass of the alloy, more advantageously between 0.1% and 2% , and even more advantageously between 0.8 and 1.5%.
- the alloy according to the invention can thus consist of gold, copper, silver, palladium, tin, and titanium.
- the sum of the percentages of the metals gold, copper, silver, palladium, tin and titanium is equal to 100.
- the mass percentage of gold in the alloy is between 75% and 77.5%, advantageously between 75% and 75.5%.
- the percentage by mass of tin in the alloy is between 0.1% and 2.0%, advantageously between 0.5% and 1.5%.
- the alloy according to the invention comprises 0.2% or less of at least one grain refiner element (Ru, Re, Fe, Ir, Co, V, Mo). In other words, it includes between 0% and 0.2% of at least one grain refiner.
- at least one grain refiner element Ru, Re, Fe, Ir, Co, V, Mo.
- step a the respective percentages of the metals correspond to the percentages of the final alloy. This step is carried out conventionally, according to techniques known to those skilled in the art.
- the cooling step c) makes it possible to set the structure of the alloy. It advantageously consists in carrying out thermal quenching in air or in water.
- the alloy thus obtained can then be shaped.
- the shaping is carried out by cold or hot deformation, then by machining, for example by means of a cutting tool or by electro erosion or by means of a laser.
- Table 1 Examples of alloys according to the invention, in tenths of a percentage by mass ( ⁇ ). Alloy Color At ⁇ Cu ⁇ Ag ⁇ Pd ⁇ Sn ⁇ INV-1 4N 752 170 63 5 10 INV-2 4N 752 158 78 4 8 INV-3 5N 752 210 22 5 11 INV-4 6N 752 235 4 5 4 INV-5 6N 752 233 2 10 3 INV-6 5N 752 210 13 5 20 INV-7 5N 752 210 23.48 4.55 10.02 INV-8 5N 752 210 30 5 2.5
- the figures 1 and 3 show the color change for alloys not forming part of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
Claims (15)
- Legierung, mit einer Zusammensetzung, die nach Gewicht, bezogen auf das Gewicht der Legierung, besteht aus: :- 75 % bis 77,5 % Gold,- 10 % bis 24,0 % Kupfer,- 0 1 % bis 10,0 % Silber,- 0,1 % bis 1,1 % Palladium,- 0 1 % bis 2,0 % Zinn,- 2 % oder weniger Titan,- 0,2 % oder weniger mindestens eines Elementes ausgewählt aus Ruthenium, Rhenium, Eisen, Iridium, Kobalt, Vanadium, Molybdän und ihren Mischungen; sowie- aus eventuellen Verunreinigungen.
- Legierung nach Anspruch 1, dadurch gekennzeichnet, dass sie zwischen 75 % und 75,5 % Gold enthält.
- Legierung nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass sie zwischen 15 % und 22 % Kupfer enthält.
- Legierung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie zwischen 1 % und 4 % Silber enthält.
- Legierung nach Anspruch 1 bis 4 dadurch gekennzeichnet, dass sie zwischen 0,3 % und 0,8 % Palladium enthält.
- Legierung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie zwischen 0,5 % und 1,5 % Zinn enthält.
- Legierung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie zwischen 0,05 % und 2 % Titan enthält.
- Legierung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Legierung aus Gold, Kupfer, Silber, Palladium und Zinn besteht.
- Legierung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Legierung aus Gold, Kupfer, Silber, Palladium, Zinn und Titan besteht.
- Verfahren zur Herstellung der Legierung nach einem der Ansprüche 1 bis 9, das mindestens die folgenden Schritte enthält:a) Herstellung einer Mischung nach Gewicht, bezogen auf das Gesamtgewicht der Metalle, bestehend aus::- zwischen 75 % und 77,5 % Gold,- zwischen 10 % und 24,0 % Kupfer,- zwischen 0,1 % und 10,0 % Silber,- zwischen 0,1 % und 1,1 % Palladium,- zwischen 0,1 % und 2,0 % Zinn- 2 % oder weniger Titan,- 0,2 % oder weniger mindestens eines Elementes ausgewählt aus Ruthenium, Rhenium, Eisen, Iridium, Kobalt, Vanadium, Molybdän und ihren Mischungen, sowie,- eventuelle Verunreinigungen,b) diese Mischung wird legiert,c) die in Schritt b) gelöste Mischung wird gekühlt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass Schritt b) bei einer Temperatur zwischen 750 °C und 1500°C, vorteilhafterweise zwischen 1050 °C 20 und 1300 °C. durchgeführt wird.
- Verfahren nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die Mischung aus Schritt a) zwischen 0,05 % und 2 % Titan, nach Gewicht, bezogen auf das Gesamtgewicht der Metalle enthält.
- Verfahren gemäß irgendeinem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass Schritt c) darin besteht eine thermische Härtung mit Luft oder mit Wasser durchzuführen.
- Einsatz der Legierung nach einem der Ansprüche 1 bis 9, auf dem Gebiet der Uhrenbaus oder der Schmuckherstellung.
- Uhren oder Schmuck, die die Legierung nach einem der Ansprüche 1 bis 9 enthalten.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18156884.1A EP3527678B1 (de) | 2018-02-15 | 2018-02-15 | Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung |
| PCT/EP2019/053325 WO2019158481A1 (fr) | 2018-02-15 | 2019-02-11 | Alliage a base d'or et de cuivre, son procede de preparation et son utilisation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18156884.1A EP3527678B1 (de) | 2018-02-15 | 2018-02-15 | Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3527678A1 EP3527678A1 (de) | 2019-08-21 |
| EP3527678B1 true EP3527678B1 (de) | 2021-06-02 |
Family
ID=61226456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18156884.1A Active EP3527678B1 (de) | 2018-02-15 | 2018-02-15 | Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3527678B1 (de) |
| WO (1) | WO2019158481A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10245646A (ja) | 1997-03-07 | 1998-09-14 | Seiko Epson Corp | 金合金、装飾部材、携帯時計及び装飾部材の製造方法 |
| US5919320A (en) * | 1997-11-17 | 1999-07-06 | Leach & Garner Company | Nickel-free white gold alloy with reversible hardness characteristics |
| GB2447620A (en) * | 2007-03-21 | 2008-09-24 | Sarah J Corbridge | Alloys of gold which contain tin |
| JP4058101B1 (ja) * | 2007-05-15 | 2008-03-05 | 株式会社ラーピス | 装飾用および歯科用金合金 |
| DE212012000198U1 (de) * | 2011-11-08 | 2014-07-17 | The Swatch Group Research And Development Ltd. | Uhrenteil oder Schmuckstück aus Gold |
| EP3428295A1 (de) * | 2012-12-03 | 2019-01-16 | Argor-Heraeus S.A. | Verfärbungsbeständige goldlegierung |
| EP3044343B1 (de) | 2013-09-10 | 2018-12-26 | Apple Inc. | Kristalline goldlegierungen mit verbesserter härte |
| ES2673936T3 (es) * | 2014-05-16 | 2018-06-26 | Progold S.P.A. | Uso de aleaciones de oro en polvo para la fabricación de artículos de joyería mediante fusión selectiva con láser |
-
2018
- 2018-02-15 EP EP18156884.1A patent/EP3527678B1/de active Active
-
2019
- 2019-02-11 WO PCT/EP2019/053325 patent/WO2019158481A1/fr active Application Filing
Non-Patent Citations (1)
| Title |
|---|
| SPIEKERMANN P: "Alloys - a special problem of patent law", NONPUBLISHED ENGLISH TRANSLATION OF DOCUMENT, 1993, pages 1 - 20, XP002184689 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3527678A1 (de) | 2019-08-21 |
| WO2019158481A1 (fr) | 2019-08-22 |
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