EP1266974A1 - Alliages d'or et alliages-mères pour leur obtention - Google Patents

Alliages d'or et alliages-mères pour leur obtention Download PDF

Info

Publication number: EP1266974A1
Authority: EP; European Patent Office
Prior art keywords: alloy; gold; weight; alloys; elements
Prior art date: 2001-05-30
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

Application number

EP01830349A

Other languages

German (de)

English (en)

Other versions

EP1266974B1 (fr

Inventor

Massimo Poliero

Andrea Basso

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.)

Legor Srl

LEG OR Srl

Original Assignee

Legor Srl

LEG OR Srl

Priority date (The priority date 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 date listed.)

2001-05-30

Filing date

2001-05-30

Publication date

2002-12-18

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8184548&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1266974(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2001-05-30 Application filed by Legor Srl, LEG OR Srl filed Critical Legor Srl

2001-05-30 Priority to AT01830349T priority Critical patent/ATE278045T1/de

2001-05-30 Priority to ES01830349T priority patent/ES2227106T3/es

2001-05-30 Priority to DE60105987T priority patent/DE60105987D1/de

2001-05-30 Priority to EP01830349A priority patent/EP1266974B1/fr

2002-05-29 Priority to US10/156,386 priority patent/US20030012679A1/en

2002-12-18 Publication of EP1266974A1 publication Critical patent/EP1266974A1/fr

2004-09-29 Application granted granted Critical

2004-09-29 Publication of EP1266974B1 publication Critical patent/EP1266974B1/fr

2021-05-30 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

Links

229910045601 alloy Inorganic materials 0.000 title claims abstract description 74
239000000956 alloy Substances 0.000 title claims abstract description 74
229910001020 Au alloy Inorganic materials 0.000 title claims abstract description 39
239000003353 gold alloy Substances 0.000 title claims abstract description 39
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 34
229910052710 silicon Inorganic materials 0.000 claims abstract description 34
239000010703 silicon Substances 0.000 claims abstract description 34
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 27
229910052732 germanium Inorganic materials 0.000 claims abstract description 26
GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 26
239000011701 zinc Substances 0.000 claims abstract description 14
229910052759 nickel Inorganic materials 0.000 claims abstract description 11
229910052741 iridium Inorganic materials 0.000 claims abstract description 10
GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims abstract description 10
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 10
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
229910052725 zinc Inorganic materials 0.000 claims abstract description 9
229910052709 silver Inorganic materials 0.000 claims abstract description 8
239000004332 silver Substances 0.000 claims abstract description 8
229910017052 cobalt Inorganic materials 0.000 claims abstract description 7
239000010941 cobalt Substances 0.000 claims abstract description 7
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 7
KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims abstract description 6
229910052702 rhenium Inorganic materials 0.000 claims abstract description 6
WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims abstract description 6
229910052707 ruthenium Inorganic materials 0.000 claims abstract description 6
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 5
WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 5
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 5
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
229910052796 boron Inorganic materials 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
229910052744 lithium Inorganic materials 0.000 claims abstract description 5
229910052749 magnesium Inorganic materials 0.000 claims abstract description 5
239000011777 magnesium Substances 0.000 claims abstract description 5
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 5
229910052697 platinum Inorganic materials 0.000 claims abstract description 5
229910052718 tin Inorganic materials 0.000 claims abstract description 5
239000011135 tin Substances 0.000 claims abstract description 5
239000010931 gold Substances 0.000 claims description 19
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 15
229910052737 gold Inorganic materials 0.000 claims description 15
239000010949 copper Substances 0.000 claims description 13
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
229910052802 copper Inorganic materials 0.000 claims description 9
238000007670 refining Methods 0.000 abstract description 7
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 6
230000000694 effects Effects 0.000 description 11
238000005266 casting Methods 0.000 description 9
238000007792 addition Methods 0.000 description 7
239000000203 mixture Substances 0.000 description 7
150000001875 compounds Chemical class 0.000 description 6
238000000034 method Methods 0.000 description 6
239000013078 crystal Substances 0.000 description 5
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 4
238000001816 cooling Methods 0.000 description 4
238000002844 melting Methods 0.000 description 4
230000008018 melting Effects 0.000 description 4
239000010938 white gold Substances 0.000 description 4
229910000832 white gold Inorganic materials 0.000 description 4
239000010930 yellow gold Substances 0.000 description 4
229910001097 yellow gold Inorganic materials 0.000 description 4
238000004519 manufacturing process Methods 0.000 description 3
238000012345 traction test Methods 0.000 description 3
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
229910052786 argon Inorganic materials 0.000 description 2
230000015556 catabolic process Effects 0.000 description 2
239000000919 ceramic Substances 0.000 description 2
238000004320 controlled atmosphere Methods 0.000 description 2
238000006731 degradation reaction Methods 0.000 description 2
230000001747 exhibiting effect Effects 0.000 description 2
229910002804 graphite Inorganic materials 0.000 description 2
239000010439 graphite Substances 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
239000011261 inert gas Substances 0.000 description 2
239000000463 material Substances 0.000 description 2
229910021332 silicide Inorganic materials 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
229910016344 CuSi Inorganic materials 0.000 description 1
229910000927 Ge alloy Inorganic materials 0.000 description 1
229910000676 Si alloy Inorganic materials 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
229910052729 chemical element Inorganic materials 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
238000009472 formulation Methods 0.000 description 1
YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 1
239000008187 granular material Substances 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
229910000765 intermetallic Inorganic materials 0.000 description 1
238000009533 lab test Methods 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical class [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000002245 particle Substances 0.000 description 1
238000005498 polishing Methods 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
239000011819 refractory material Substances 0.000 description 1
239000007858 starting material Substances 0.000 description 1
238000000859 sublimation Methods 0.000 description 1
230000008022 sublimation Effects 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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
- 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

the present invention relates to gold alloys and to master alloys for obtaining them, mainly for the manufacture of precious objects such as jewellery and gold works, coins and medals.
One of the fundamental problems is to obtain gold alloys exhibiting good fluidity (i.e. a good ability to fill the die) at the moment of casting.
the silicon tends to combine with the oxygen present both in the starting materials and in the surrounding atmosphere.
silicon tends to combine with the refining elements commonly used giving rise to the formation of silicides which go to constitute spheroidal conglomerates of inter-metallic compounds with high hardness, originating flaws known as "hard spots”.
Such inclusions can appear on the surface of the finished piece after the final work process, entailing either the rework of the piece, or its discarding.
the technical task constituting the basis of the present invention is to provide gold alloys and master alloys for obtaining them which overcome the aforementioned drawbacks.
the technical task of the present invention is to provide gold alloys and master alloys for obtaining them which exhibit an excellent fluidity in the molten state even without silicon additions.
germanium which, in the percentage of employment described in the present invention, has very distinct fluidising properties, superior to those of silicon: as described below, this feature is readily apparent in comparative melting tests between silicon based alloys and germanium based alloys, the latter described in the present invention.
the bath of germanium based alloys exhibits an extremely clean, slag-free surface, characteristic that is due to the fact that the germanium oxides which may be present on the surface of the bath are removed by sublimation at temperatures f around 710°C. Relative to silicon based alloys, therefore, the possibility of inclusions of oxide particles in the castings, with the consequent risk of brittleness, is drastically reduced.
germanium concentrations varying between 0.05% and 2% by weight have led to an increase in fluidity deemed to be even greater than the one provided by silicon in normal usage concentrations, whilst exhibiting an increase in grain size, following such addition, that is decidedly smaller than that observed in silicon alloys.
germanium alloys with low or nil silicon content, in addition to the fluidising effect obtained, exceeding that of silicon, the mechanical characteristics of the alloy are improved as well, as can be observed from the data illustrated below.
germanium and small quantities of silicon this combination allows to obtain "clean and shiny" castings, without causing the immediate degradation of the mechanical properties as can be observed with the use of silicon alone in greater quantities.
the gold alloy of the present invention comprises at least the following elements:
the fundamental characteristic of said alloy is that of containing germanium as a fluidising element, while being able to be free of silicon.
the gold alloy can contain (with percentages expressed in weight):
nickel or other elements having similar properties, and equivalent thereto
suitable quantity allows to obtain alloys of so-called white gold.
the alloy can also contain, in a proportion not exceeding 4% by weight, at least one of the elements of the group constituted by cobalt, manganese, tin and indium.
one ore more deoxidising elements such as magnesium, silicon, boron and lithium can also be added, each in a proportion not exceeding 0.15% by weight.
the alloy can also comprise refining elements such as ruthenium, rhenium and platinum in a suitable quantity and preferably not exceeding 0.4% by weight.
a first preferred range is the one associated with obtaining 18 carat gold, in which the quantity of gold present in the alloy is between 74% and 77% by weight.
a second preferred range is the one associated with obtaining 14 carat gold, in which the quantity of gold present in the alloy is between 57% and 60% by weight.
master alloys for obtaining the above gold alloys they are composed at least by:
the master alloy can also comprise, as a weight percentage relative to the total weight of the master alloy:
the master alloy can include, in quantities not exceeding 8% by weight, at least one of the elements of the group constituted by cobalt, manganese, tin and indium.
the master alloy can further include, in quantities not exceeding 0.36% by weight, at least one of the deoxidising elements of the group constituted by magnesium, silicon, boron and lithium.
At least one of the refining elements of the group constituted by ruthenium, rhenium and platinum can be inserted in the master alloy, in quantities not exceeding 0.96% by weight.
a preferential process comprises the following phases:
the present invention achieves important advantages.
Figure 1 shows the variation in the dimensions of the crystal grain of the alloy as a result of the addition, thereto, of the elements and compounds indicated in the x-coordinate. It is evident that the influence of Silicon (CuSi) on the increase in grain size is considerably lesser than the influence of Germanium (Ge).
Figure 2 shows the effect of the concentration of Silicon and germanium on the grain dimension of the gold alloy.
a low concentration of silicon in the graph from 0 to 300 ppm, entails a considerable increase in crystal grain size, even exceeding the size increase caused by additions of germanium in concentrations that are 10 times greater.
Figure 4 shows the percent variation of the lengthening of the gold alloy subjected to traction test, as a function of the addition to the alloy of the elements and compounds, indicated in the x-coordinate, in equal quantities.
germanium instead of silicon also yielded positive effects on the percent of lengthening of the alloy following the traction test.
the alloys obtained according to the present invention (be they gold alloys or master alloys for obtaining gold alloys), thanks to the small size of the crystal grain, are normally able not require the use of other refining elements.
silicides does not take place, thanks to the absence, or near absence, of silicon.

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Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Silicon Compounds (AREA)
Manufacture And Refinement Of Metals (AREA)
Contacts (AREA)
Adornments (AREA)
Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

EP01830349A 2001-05-30 2001-05-30 Alliages d'or et alliages-mères pour leur obtention Revoked EP1266974B1 (fr)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
AT01830349T ATE278045T1 (de)	2001-05-30	2001-05-30	Goldlegierungen und vorlegierungen zu deren herstellung
ES01830349T ES2227106T3 (es)	2001-05-30	2001-05-30	Aleaciones de oro y aleaciones madres para obtener tales aleaciones de oro.
DE60105987T DE60105987D1 (de)	2001-05-30	2001-05-30	Goldlegierungen und Vorlegierungen zu deren Herstellung
EP01830349A EP1266974B1 (fr)	2001-05-30	2001-05-30	Alliages d'or et alliages-mères pour leur obtention
US10/156,386 US20030012679A1 (en)	2001-05-30	2002-05-29	Gold alloys and master alloys for obtaining them

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP01830349A EP1266974B1 (fr)	2001-05-30	2001-05-30	Alliages d'or et alliages-mères pour leur obtention

Publications (2)

Publication Number	Publication Date
EP1266974A1 true EP1266974A1 (fr)	2002-12-18
EP1266974B1 EP1266974B1 (fr)	2004-09-29

Family

ID=8184548

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP01830349A Revoked EP1266974B1 (fr)	2001-05-30	2001-05-30	Alliages d'or et alliages-mères pour leur obtention

Country Status (5)

Country	Link
US (1)	US20030012679A1 (fr)
EP (1)	EP1266974B1 (fr)
AT (1)	ATE278045T1 (fr)
DE (1)	DE60105987D1 (fr)
ES (1)	ES2227106T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2418432A (en) *	2004-09-23	2006-03-29	Middlesex Silver Co Ltd	Silver alloy and its production using a master metal
WO2007083169A1 (fr) *	2006-01-23	2007-07-26	Middlesex Silver Co. Limited	Fabrication d’alliage mere
ITPD20130003A1 (it) *	2013-01-11	2014-07-12	Legor Group S P A	Composizione di lega madre per la produzione di leghe di oro con innovativo sistema di affinatori e lega di oro ottenuta mediante tale composizione di lega madre
ITPD20130002A1 (it) *	2013-01-11	2014-07-12	Legor Group S P A	Composizione di lega madre per la produzione di leghe di oro bianco e lega di oro bianco così ottenuta
WO2015193659A3 (fr) *	2014-06-16	2016-02-25	Allied Gold Limited	Compositions d'alliage
WO2016084038A3 (fr) *	2014-11-28	2016-08-04	Peretti Diego	Alliage mère utilisé pour la fabrication d'un alliage d'or blanc
RU2626260C1 (ru) *	2016-08-17	2017-07-25	Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет"	Способ изготовления биметаллической проволоки из драгоценных металлов
WO2022180650A1 (fr) *	2021-02-23	2022-09-01	Italfimet Srl	Procédé d'électrodéposition galvanique et bain galvanique associé

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20050100471A1 (en) *	2002-09-13	2005-05-12	Taylor Arthur D.	White gold alloy
TR200701159A2 (tr) *	2007-02-26	2008-09-22	Güner Kuyumculuk Kalip Maki̇na San. Ve Ti̇c. Ltd. Şti̇.	Altın ve diğer madenlerin birleştirilmesi yönteminde yenilik
JP2008301063A (ja) *	2007-05-30	2008-12-11	Panasonic Corp	家庭用電器製品報知システム、携帯端末装置、家庭用電器製品および作業完了通知方法
US20090317291A1 (en) *	2008-06-20	2009-12-24	Annette Gertge	Variable karat gold alloys
US20090317292A1 (en) *	2008-06-20	2009-12-24	Gertge Annette T	Variable karat gold alloys
WO2010132595A2 (fr) *	2009-05-12	2010-11-18	Jostens, Inc.	Alliages d'or
CN102386545B (zh) *	2011-03-11	2013-05-29	清华大学深圳研究生院	一种含稀土元素的滑动电接触材料制造工艺
RU2476615C1 (ru) *	2012-03-07	2013-02-27	Юлия Алексеевна Щепочкина	Сплав на основе золота
US9005522B2 (en)	2012-08-30	2015-04-14	Jostens, Inc.	Silver alloy
RU2507284C1 (ru) *	2012-12-13	2014-02-20	Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет"	Способ модифицирования сплавов на основе золота
ITVI20130118A1 (it) *	2013-04-24	2014-10-25	Progold S P A	Metodo per la produzione di leghe d¿oro bianco per la realizzazione di prodotti in materiale prezioso
RU2604145C1 (ru) *	2015-07-17	2016-12-10	Сергей Алексеевич Костин	Сплав на основе золота, упрочненный интерметаллидами, содержащими кобальт, (варианты)
RU2652900C1 (ru) *	2016-12-06	2018-05-03	Юлия Алексеевна Щепочкина	Сплав на основе золота
IT202100017651A1 (it) *	2021-07-05	2023-01-05	Metaltech S R L	Lega madre per la realizzazione di leghe di un metallo prezioso, metodo di produzione della lega madre e lega d’oro comprendente la lega madre

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JPS63169347A (ja) *	1986-12-29	1988-07-13	Tokuriki Honten Co Ltd	装飾用白色Ａｕ合金
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JPH06330206A (ja) *	1993-05-19	1994-11-29	Nippon Steel Corp	微細な結晶粒からなるＡｕ‐Ｇｅ合金ろう材
JPH09209060A (ja) *	1995-12-01	1997-08-12	Sumitomo Metal Mining Co Ltd	金合金およびその製造方法
JPH11792A (ja) *	1997-06-11	1999-01-06	Sumitomo Metal Mining Co Ltd	高品位金ろう材

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US3956027A (en) *	1975-04-09	1976-05-11	Olin Corporation	Processing copper base alloys
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2001
- 2001-05-30 ES ES01830349T patent/ES2227106T3/es not_active Expired - Lifetime
- 2001-05-30 AT AT01830349T patent/ATE278045T1/de not_active IP Right Cessation
- 2001-05-30 DE DE60105987T patent/DE60105987D1/de not_active Expired - Lifetime
- 2001-05-30 EP EP01830349A patent/EP1266974B1/fr not_active Revoked
2002
- 2002-05-29 US US10/156,386 patent/US20030012679A1/en not_active Abandoned

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DE3019277A1 (de) *	1980-05-21	1981-11-26	Fa. Dr. Th. Wieland, 7530 Pforzheim	Kupferfreie goldlegierung fuer zahnaerztliche zwecke
JPS63169347A (ja) *	1986-12-29	1988-07-13	Tokuriki Honten Co Ltd	装飾用白色Ａｕ合金
EP0381994A1 (fr) *	1989-02-09	1990-08-16	C. HAFNER GmbH & Co.	Alliage à haute teneur en or pour pièces de bijouterie
JPH06330206A (ja) *	1993-05-19	1994-11-29	Nippon Steel Corp	微細な結晶粒からなるＡｕ‐Ｇｅ合金ろう材
DE4320928C1 (de) *	1993-06-24	1994-03-17	Heraeus Kulzer Gmbh	Gold-Schmucklegierungen und ihre Verwendung
JPH09209060A (ja) *	1995-12-01	1997-08-12	Sumitomo Metal Mining Co Ltd	金合金およびその製造方法
JPH11792A (ja) *	1997-06-11	1999-01-06	Sumitomo Metal Mining Co Ltd	高品位金ろう材

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WO2007083169A1 (fr) *	2006-01-23	2007-07-26	Middlesex Silver Co. Limited	Fabrication d’alliage mere
ITPD20130003A1 (it) *	2013-01-11	2014-07-12	Legor Group S P A	Composizione di lega madre per la produzione di leghe di oro con innovativo sistema di affinatori e lega di oro ottenuta mediante tale composizione di lega madre
ITPD20130002A1 (it) *	2013-01-11	2014-07-12	Legor Group S P A	Composizione di lega madre per la produzione di leghe di oro bianco e lega di oro bianco così ottenuta
WO2014108848A1 (fr) *	2013-01-11	2014-07-17	Legor Group S.P.A.	Composition d'alliage maître pour la production d'alliages d'or blanc et alliage d'or blanc ainsi obtenu
WO2014108849A1 (fr)	2013-01-11	2014-07-17	Legor Group S.P.A.	Composition d'alliage mère pour la production d'alliages d'or et d'un alliage d'or
CN104903477A (zh) *	2013-01-11	2015-09-09	莱高集团股份公司	用于生产一种或多种金合金的中间合金组合物
WO2015193659A3 (fr) *	2014-06-16	2016-02-25	Allied Gold Limited	Compositions d'alliage
WO2016084038A3 (fr) *	2014-11-28	2016-08-04	Peretti Diego	Alliage mère utilisé pour la fabrication d'un alliage d'or blanc
RU2626260C1 (ru) *	2016-08-17	2017-07-25	Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет"	Способ изготовления биметаллической проволоки из драгоценных металлов
WO2022180650A1 (fr) *	2021-02-23	2022-09-01	Italfimet Srl	Procédé d'électrodéposition galvanique et bain galvanique associé

Also Published As

Publication number	Publication date
ATE278045T1 (de)	2004-10-15
ES2227106T3 (es)	2005-04-01
EP1266974B1 (fr)	2004-09-29
DE60105987D1 (de)	2004-11-04
US20030012679A1 (en)	2003-01-16

Publication	Publication Date	Title
EP1266974B1 (fr)	2004-09-29	Alliages d'or et alliages-mères pour leur obtention
CN102549179B (zh)	2016-03-30	无镍和铜的白金合金
US5039479A (en)	1991-08-13	Silver alloy compositions, and master alloy compositions therefor
US4973446A (en)	1990-11-27	Silver alloy compositions
EP1711641B1 (fr)	2010-12-15	Alliages de platine et leur procede de production
US5882441A (en)	1999-03-16	Silver colored alloy with low percentage copper
US10323310B2 (en)	2019-06-18	Process for making finished or semi-finished articles of silver alloy
JP2000178669A (ja)	2000-06-27	ホワイトゴ―ルド合金
US20140003992A1 (en)	2014-01-02	Tarnish-resistant sterling silver alloys
US20080069722A1 (en)	2008-03-20	Metal alloy manufacturing
EP2453028B1 (fr)	2014-08-06	Utilization d'un Alliage pour le moulage de coulée
WO2014203007A1 (fr)	2014-12-24	Compositions d'alliage et d'argent et procédés
EP1913168B1 (fr)	2009-08-26	Alliage de platine et son procede de fabrication
US7118707B2 (en)	2006-10-10	Silver-platinum alloy and methods of manufacturing same
JPS643932B2 (fr)	1989-01-24
WO2007014576A1 (fr)	2007-02-08	Alliage de platine et son procede de fabrication
JPS62182238A (ja)	1987-08-10	連続鋳造鋳型用Ｃｕ合金
GB2367833A (en)	2002-04-17	18 carat gold alloy
US6835252B1 (en)	2004-12-28	Gold colored alloy used for dentistry and jewelry
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US2180292A (en)	1939-11-14	Zinc base alloy

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