EP3783124A1 - Uhr, schmuck- oder juwelierartikel aus gold - Google Patents
Uhr, schmuck- oder juwelierartikel aus gold Download PDFInfo
- Publication number
- EP3783124A1 EP3783124A1 EP19193469.4A EP19193469A EP3783124A1 EP 3783124 A1 EP3783124 A1 EP 3783124A1 EP 19193469 A EP19193469 A EP 19193469A EP 3783124 A1 EP3783124 A1 EP 3783124A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gold
- weight
- alloy according
- palladium
- gold 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.)
- Pending
Links
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 22
- 239000010931 gold Substances 0.000 title claims abstract description 22
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910001020 Au alloy Inorganic materials 0.000 claims abstract description 27
- 239000003353 gold alloy Substances 0.000 claims abstract description 27
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 16
- 229910052709 silver Inorganic materials 0.000 claims abstract description 15
- 239000004332 silver Substances 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 4
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052702 rhenium Inorganic materials 0.000 claims description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 25
- 239000000956 alloy Substances 0.000 abstract description 25
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005494 tarnishing Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910001295 No alloy Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C27/00—Making jewellery or other personal adornments
- A44C27/001—Materials for manufacturing jewellery
- A44C27/002—Metallic materials
- A44C27/003—Metallic 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- 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
- G04B19/00—Indicating the time by visual means
- G04B19/06—Dials
- G04B19/12—Selection of materials for dials or graduations markings
-
- 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
- G04B29/00—Frameworks
- G04B29/02—Plates; Bridges; Cocks
- G04B29/027—Materials and manufacturing
-
- 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
- a 9 karat gold alloy having good deformability, as well as improved stress corrosion resistance and tarnish resistance.
- the invention also relates to a timepiece, jewelry or jewelry piece made from this gold alloy.
- Zinc also unfortunately has the drawback of polluting the furnaces during casting and recrystallization annealing. This hinders the gold refiners who are constantly subjected to the incessant cleaning of their furnaces avoiding any contamination on other alloys.
- the object of the present invention is therefore to remedy the drawbacks of the aforementioned prior art by providing a 9 carat gold alloy, exhibiting tarnishing resistance, deformability as well as resistance to stress corrosion which are improved compared with the alloys. 9 carat gold tone of the prior art.
- Another object of the invention is to provide a 9-carat gold alloy without zinc, with a view to facilitating its implementation.
- the invention relates to a gold alloy without zinc comprising by weight between 37.5% and 38.5% gold, between 4% and 32% of silver and / or palladium, between 25, 0% and 54.0% copper and between 0 and 10.0% gallium.
- the invention relates to a gold alloy consisting by weight of 37.5% to 38.5% gold, 4% to 32% silver and / or palladium, 25.0% to 54 , 0% copper, 0 to 10.0% gallium and 0 to 0.05% of an element selected from iridium, rhenium and ruthenium.
- the present invention also relates to the timepiece, piece of jewelry or jewelry made from this alloy.
- timepieces, jewelry or jewelry made with this alloy are very interesting from the point of view of their color, their deformability and their resistance to corrosion (in particular stress corrosion) as well as 'to tarnishing.
- the present invention relates to a zinc-free gold alloy more particularly intended for application in the watchmaking, jewelry or jewelry industry. It thus also relates to timepieces, jewelry or jewelry made from this alloy.
- timepiece is understood to mean both trim components such as a case, a dial, a dial applique, a bracelet, etc. as movement components such as a plate, a bridge or a balance.
- the gold alloy according to the invention comprising by weight between 37.5% and 38.5% of gold, silver and / or palladium with a total for these two elements of between 4 and 32%, between 25.0% and 54.0% copper and between 0 and 10.0% gallium. It has the particularity of being zinc-free. It is also nickel, cobalt, iron and manganese free.
- the gold-based alloy comprises between 5 and 26% by weight of silver and / or palladium.
- the gold-based alloy comprises between 6% to 19.5% by weight of silver and / or palladium.
- the gold-based alloy comprises between 7% and 17% by weight of silver and / or palladium.
- the gold-based alloy comprises between 7% and 14.5% by weight of silver and / or palladium.
- the gold-based alloy comprises by weight between 0 and 0.05% (limit included) of an element chosen from iridium, rhenium and ruthenium and advantageously the alloy comprises by weight 0.0025% iridium.
- the various elements of the composition are melted before being cast.
- the casting ingot is then deformed with a work hardening rate greater than or equal to 75% distributed in several passes with intermediate anneals carried out at a temperature 650 ° C for 30 minutes.
- the blanks are sized, for example, by machining.
- the alloys obtained after deformation and annealing exhibit in the CIELAB color space (in accordance with CIE standards n ° 15, ISO 7724/1, DIN 5033 Part 7, ASTM E-1164) an a * value between 1 and 8, preferably between 5.5 and 7.5, and a b * value between 12 and 18, preferably between 14 and 16.
- They have a hardness of between 125 and 180 HV1, preferably between 130 and 180 HV1. They have an electrochemical potential greater than or equal to 0.52 volts, the latter being obtained by summing the electrochemical potential of each element of the alloy multiplied by its atomic concentration.
- Table 1 shows the composition in% by weight of the alloys on the market: No. 843, No. 844 and No. 859 comprising zinc as well as two laboratory alloys No. 846 and No. 848 comprising zinc, these five alloys being comparative examples. Alloys Nos. 849-852, 854-858 and 860 without zinc are 9 carat gold alloys according to the invention.
- the measured colorimetric values, the measured hardness (HV1) and the calculated electrochemical potentials are also presented in Table 1.
- the L * a * b * colorimetric values were measured with a KONICA MINOLTA CM-2600d spectrophotometer with a D65 illuminant and a 10 ° viewing angle.
- the alloys according to the invention have good corrosion resistance (electrochemical potential above 0.52Volt), as well as a hardness in the annealed state easily allowing their deformation (between 130 and 175 H V). They all have an a * value in the 2-7 range and a b * value in the 13-18 range.
- the 856 alloy has a 4N shade according to the ISO 8654: 2019 standard.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adornments (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19193469.4A EP3783124A1 (de) | 2019-08-23 | 2019-08-23 | Uhr, schmuck- oder juwelierartikel aus gold |
| JP2020065543A JP7112448B2 (ja) | 2019-08-23 | 2020-04-01 | 金で作られた計時器の部品、装飾品又は宝石用宝飾品 |
| US16/841,738 US11441210B2 (en) | 2019-08-23 | 2020-04-07 | Timepiece or piece of jewellery or gemstone jewellery made of gold |
| CN202010849214.1A CN112410643A (zh) | 2019-08-23 | 2020-08-21 | 由金制成的时计或首饰或宝石首饰 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19193469.4A EP3783124A1 (de) | 2019-08-23 | 2019-08-23 | Uhr, schmuck- oder juwelierartikel aus gold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3783124A1 true EP3783124A1 (de) | 2021-02-24 |
Family
ID=67742323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19193469.4A Pending EP3783124A1 (de) | 2019-08-23 | 2019-08-23 | Uhr, schmuck- oder juwelierartikel aus gold |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11441210B2 (de) |
| EP (1) | EP3783124A1 (de) |
| JP (1) | JP7112448B2 (de) |
| CN (1) | CN112410643A (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE436287A (fr) * | 1939-02-25 | 1939-10-31 | Heraeus Gmbh W C | Alliages pour bijoux et bagues |
| US3136633A (en) * | 1961-08-15 | 1964-06-09 | Int Nickel Co | Au-cu-pd brazing alloy |
| EP1650316A1 (de) * | 2004-10-20 | 2006-04-26 | Metalor Technologies SA | Goldlegierung |
| WO2015193659A2 (en) * | 2014-06-16 | 2015-12-23 | Allied Gold Limited | Alloy compositions |
| CH709923A2 (fr) * | 2014-07-25 | 2016-01-29 | Nivarox Sa | Alliage d'or. |
| EP3165621A1 (de) * | 2015-11-05 | 2017-05-10 | Nivarox-FAR S.A. | Herstellungsverfahren eines drahts aus goldlegierung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444350A (en) * | 1972-10-03 | 1976-07-28 | Johnson Matthey Co Ltd | Dental alloys |
| GB1469856A (en) | 1974-05-28 | 1977-04-06 | Johnson Matthey Co Ltd | Solder alloy |
| FR2305503A1 (fr) | 1975-03-27 | 1976-10-22 | Louyot Comptoir Lyon Alemand | Nouvel alliage d'or a 9 carats et bijoux creux constitues par ledit alliage |
| GB2041974B (en) * | 1979-01-18 | 1983-03-09 | Murao Shoten | Gold alloy |
| JPS5669338A (en) * | 1979-11-08 | 1981-06-10 | Ijima Shoten:Kk | Decorative alloy with superior corrosion resistance and workability |
| JPS6179739A (ja) * | 1984-09-27 | 1986-04-23 | Tanaka Kikinzoku Kogyo Kk | 金合金 |
| JP2549387B2 (ja) * | 1987-08-29 | 1996-10-30 | 株式会社 徳力本店 | 金ろう合金 |
| DE3935813A1 (de) | 1989-10-27 | 1991-05-02 | Degussa | Lotlegierung fuer dental- und schmuckteile |
| JP3548797B2 (ja) | 2000-12-25 | 2004-07-28 | 独立行政法人産業技術総合研究所 | 緑色の金合金宝飾品の製造方法とその製品 |
| ITVR20070134A1 (it) * | 2007-09-27 | 2009-03-28 | Legor Group S R L | Leghe per oreficeria per la realizzazione di oggetti in oro bianco privi di nichel |
| EP2578202A2 (de) | 2010-05-27 | 2013-04-10 | Hyung-Seok Park | Metalllegierung zur fusion zahnärztlicher keramikartikel und zahnprothese |
| SI23418A (sl) | 2010-07-05 | 2012-01-31 | Zlatarna Celje D.D. | Izboljšava postopka izdelave in kemijske sestave zlato-paladijeve dentalne zlitine s 46 masnimi procenti zlata |
| US10638819B2 (en) * | 2014-05-16 | 2020-05-05 | Progold S.P.A. | Use of gold powder alloys for manufacturing jewellery items by selective laser melting |
-
2019
- 2019-08-23 EP EP19193469.4A patent/EP3783124A1/de active Pending
-
2020
- 2020-04-01 JP JP2020065543A patent/JP7112448B2/ja active Active
- 2020-04-07 US US16/841,738 patent/US11441210B2/en active Active
- 2020-08-21 CN CN202010849214.1A patent/CN112410643A/zh active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE436287A (fr) * | 1939-02-25 | 1939-10-31 | Heraeus Gmbh W C | Alliages pour bijoux et bagues |
| US3136633A (en) * | 1961-08-15 | 1964-06-09 | Int Nickel Co | Au-cu-pd brazing alloy |
| EP1650316A1 (de) * | 2004-10-20 | 2006-04-26 | Metalor Technologies SA | Goldlegierung |
| WO2015193659A2 (en) * | 2014-06-16 | 2015-12-23 | Allied Gold Limited | Alloy compositions |
| CH709923A2 (fr) * | 2014-07-25 | 2016-01-29 | Nivarox Sa | Alliage d'or. |
| EP3165621A1 (de) * | 2015-11-05 | 2017-05-10 | Nivarox-FAR S.A. | Herstellungsverfahren eines drahts aus goldlegierung |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7112448B2 (ja) | 2022-08-03 |
| JP2021031768A (ja) | 2021-03-01 |
| CN112410643A (zh) | 2021-02-26 |
| US11441210B2 (en) | 2022-09-13 |
| US20210054483A1 (en) | 2021-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7396424B2 (en) | Method of manufacturing a hard precious metal alloy member | |
| US7410546B2 (en) | Platinum alloy and method of production thereof | |
| EP1010768B1 (de) | Graue Goldlegierung, ohne Nickel | |
| EP3070182B1 (de) | Weissgoldlegierung | |
| US8136370B2 (en) | Silver-palladium alloy | |
| US20100139319A1 (en) | Platinum alloy and method of production thereof | |
| EP3502286B1 (de) | Platinlegierung | |
| US20110229368A1 (en) | White precious metal alloy | |
| EP3329024B1 (de) | Aushärtbare sterlingsilberlegierung mit verbesserter anlaufbeständigkeit | |
| EP3783124A1 (de) | Uhr, schmuck- oder juwelierartikel aus gold | |
| CN107771228B (zh) | 具有贵金属精整层和改善的耐腐蚀性的电镀产品及其制造方法和用途 | |
| EP3339455B1 (de) | Weissgoldlegierung | |
| CH716523A2 (fr) | Alliage d'or 9 carats pour l'horlogerie, la bijouterie ou la joaillerie. | |
| EP3575421B1 (de) | Teil einer uhr oder eines schmuckstückes aus einer legierung auf basis von gold | |
| EP4263890A1 (de) | Uhr, schmuck- oder schmuckstück aus gold | |
| EP4245871A1 (de) | Goldlegierung | |
| CH718194A2 (fr) | Pièce d'horlogerie, de bijouterie ou de joaillerie en or. | |
| EP3020835A1 (de) | Legierung auf Palladiumbasis | |
| CH719518A2 (fr) | Alliage d'or. | |
| EP3527679A1 (de) | Platin verbundstoff mit intermetallischen platinpartikeln | |
| CH709923A2 (fr) | Alliage d'or. | |
| JPS62235445A (ja) | 耐硫化性銀合金 | |
| WO2020202423A1 (ja) | ホワイトゴールド合金 | |
| JPH0813060A (ja) | 時効硬化性金合金 | |
| CH713263A2 (fr) | Alliage d'or gris. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20210824 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230701 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20240528 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |