EP3527678B1 - Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung - Google Patents

Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung Download PDF

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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
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EP
European Patent Office
Prior art keywords
alloy
gold
copper
palladium
tin
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EP18156884.1A
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English (en)
French (fr)
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EP3527678A1 (de
Inventor
Fanny LALIRE
Frédéric DIOLOGENT
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.)
Richemont International SA
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Richemont International SA
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Priority to EP18156884.1A priority Critical patent/EP3527678B1/de
Priority to PCT/EP2019/053325 priority patent/WO2019158481A1/fr
Publication of EP3527678A1 publication Critical patent/EP3527678A1/de
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C5/00Alloys based on noble metals
    • C22C5/02Alloys based on gold
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/22Materials or processes of manufacturing pocket watch or wrist watch cases

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  • 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)

  1. 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.
  2. Legierung nach Anspruch 1, dadurch gekennzeichnet, dass sie zwischen 75 % und 75,5 % Gold enthält.
  3. Legierung nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass sie zwischen 15 % und 22 % Kupfer enthält.
  4. Legierung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie zwischen 1 % und 4 % Silber enthält.
  5. Legierung nach Anspruch 1 bis 4 dadurch gekennzeichnet, dass sie zwischen 0,3 % und 0,8 % Palladium enthält.
  6. Legierung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie zwischen 0,5 % und 1,5 % Zinn enthält.
  7. Legierung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie zwischen 0,05 % und 2 % Titan enthält.
  8. Legierung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Legierung aus Gold, Kupfer, Silber, Palladium und Zinn besteht.
  9. Legierung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Legierung aus Gold, Kupfer, Silber, Palladium, Zinn und Titan besteht.
  10. 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.
  11. 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.
  12. 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.
  13. Verfahren gemäß irgendeinem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass Schritt c) darin besteht eine thermische Härtung mit Luft oder mit Wasser durchzuführen.
  14. Einsatz der Legierung nach einem der Ansprüche 1 bis 9, auf dem Gebiet der Uhrenbaus oder der Schmuckherstellung.
  15. Uhren oder Schmuck, die die Legierung nach einem der Ansprüche 1 bis 9 enthalten.
EP18156884.1A 2018-02-15 2018-02-15 Legierung auf gold-kupfer-basis, ihr herstellungsverfahren und ihre verwendung Active EP3527678B1 (de)

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

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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)

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EP (1) EP3527678B1 (de)
WO (1) WO2019158481A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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
CH705653B1 (fr) * 2011-11-08 2013-04-30 Swatch Group Res & Dev Ltd Pièce d'habillage d'horlogerie ou de bijouterie ou de joaillerie en alliage d'or.
WO2014087216A1 (en) * 2012-12-03 2014-06-12 Argor-Heraeus Sa Discoloration-resistant gold alloy
WO2015038636A1 (en) 2013-09-10 2015-03-19 Apple Inc. Crystalline gold alloys with improved hardness
EP3142814B1 (de) * 2014-05-16 2018-04-04 Progold S.p.A. Verwendung von goldpulverlegierungen zur herstellung von schmuckstücken durch selektives laserschmelzen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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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