EP4103757A1 - Piece of jewelry - Google Patents
Piece of jewelryInfo
- Publication number
- EP4103757A1 EP4103757A1 EP21734783.0A EP21734783A EP4103757A1 EP 4103757 A1 EP4103757 A1 EP 4103757A1 EP 21734783 A EP21734783 A EP 21734783A EP 4103757 A1 EP4103757 A1 EP 4103757A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- jewelry
- gold
- alloy
- copper
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 239000003353 gold alloy Substances 0.000 claims abstract description 10
- 229910001020 Au alloy Inorganic materials 0.000 claims abstract description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052737 gold Inorganic materials 0.000 claims abstract description 9
- 239000010931 gold Substances 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 239000011701 zinc Substances 0.000 claims abstract description 9
- 229910052709 silver Inorganic materials 0.000 claims abstract description 7
- 239000004332 silver Substances 0.000 claims abstract description 7
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 10
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 235000019993 champagne Nutrition 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000960 colored gold Inorganic materials 0.000 description 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/026—Casting jewelry articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/06—Special casting characterised by the nature of the product by its physical properties
-
- 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
Definitions
- the invention relates to a piece of jewelry, such as a piece of jewelry, in particular a ring-shaped piece of jewelry, a part of a piece of jewelry or a semi-finished product for the production of a piece of jewelry according to the preamble of claim 1, a jewelry alloy for the production of such a piece of jewelry and a method for producing the jewelry -Alloy.
- the jewelery body is made from a gold alloy with a proportion of copper.
- DE60310555T2 discloses an alloy for the production of watches, jewelery and jewellery, which has a gold content of at least 75% by weight and a copper content of at least 14% by weight. It is also described how a hue from red to pink to yellow can be achieved in gold alloys of this type, depending on the proportions of copper and silver.
- a disadvantage of the known alloys is that they are relatively expensive to produce due to the high proportion of gold.
- alloys which, in addition to the known colored gold alloys, enable new color variants, in particular also in the manufacture of gold jewellery, and which can be produced relatively inexpensively.
- the object of the invention is therefore to avoid the disadvantages mentioned in a generic jewelry body and to provide a new color scheme.
- the jewelery body made from a copper-containing gold alloy with the features of claim 1.
- the gold alloy consists of at least 58.5 to a maximum of 58.7% by weight gold, at least 26.9 to a maximum of 32.6% by weight copper, at least 5.7 to a maximum of 10.7% by weight silver, at least 1.0 to a maximum of 3.0% by weight of palladium and a remainder of at least 0.7 to has a maximum of 2.2% by weight of zinc, resulting in a jewel body with a novel hue that can be described as champagne-colored.
- the alloy consists of 58.6% by weight gold, 29.0 to 29.5% by weight copper, 8.5 to 9.0% by weight silver, 1.9 to 2. 1% by weight of palladium, and a remainder containing between 1.4 and 1.5% by weight of zinc.
- a particularly intense champagne color can be achieved and particularly good workability of the gold-copper alloy can be ensured.
- the gold alloy with the champagne hue can be produced relatively inexpensively in this way.
- the above object is achieved by a method in which the zinc content of the alloy is at least partially obtained by melting brass together with the other components. In this way, the zinc content of the melt can be produced particularly easily.
- the brass melted in here is advantageously formed by Cu63Zn37 brass, as a result of which the desired proportion of zinc can be melted in particularly easily and in an exact quantity.
- the melt can be fed to a continuous casting process, especially in larger quantities, in order to be able to produce, for example, semi-finished products that can later be processed into pieces of jewelry, such as for the production of completely or partially champagne-colored jewelry rings.
- a preferred composition of the melt for the production of the jewelery alloy and the jewelery body with a particularly radiant champagne color is given below:
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Adornments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020121225.9A DE102020121225A1 (en) | 2020-08-12 | 2020-08-12 | jewelry body |
PCT/EP2021/066306 WO2022033749A1 (en) | 2020-08-12 | 2021-06-16 | Piece of jewelry |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4103757A1 true EP4103757A1 (en) | 2022-12-21 |
Family
ID=76624020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21734783.0A Pending EP4103757A1 (en) | 2020-08-12 | 2021-06-16 | Piece of jewelry |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230295773A1 (en) |
EP (1) | EP4103757A1 (en) |
JP (1) | JP2023536770A (en) |
KR (1) | KR20230048622A (en) |
DE (1) | DE102020121225A1 (en) |
TW (1) | TW202208641A (en) |
WO (1) | WO2022033749A1 (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60258435A (en) * | 1984-06-06 | 1985-12-20 | Citizen Watch Co Ltd | Corrosion resistant, hard and golden gold alloy |
JPS63169345A (en) | 1986-12-29 | 1988-07-13 | Tokuriki Honten Co Ltd | Ornamental au alloy |
RU2170280C1 (en) * | 1999-12-29 | 2001-07-10 | Открытое акционерное общество "Екатеринбургский завод по обработке цветных металлов" | Jewelry alloy based on hallmark 585 gold |
DE10027605A1 (en) | 2000-06-06 | 2001-12-20 | Hafner C Gmbh & Co | Alloy used in the production of jewelry, coins or medallions contains gold and chromium |
EP1512765B1 (en) | 2003-09-04 | 2006-12-20 | Rolex Sa | Watch or piece of jewellery resistant to decoloration |
EP1650316A1 (en) * | 2004-10-20 | 2006-04-26 | Metalor Technologies SA | Gold alloy |
RU2366739C1 (en) * | 2008-03-27 | 2009-09-10 | Юлия Алексеевна Щепочкина | Alloy on base of gold |
RU2405050C1 (en) * | 2009-06-08 | 2010-11-27 | Открытое акционерное общество "Красноярский завод цветных металлов имени В.Н. Гулидова" (ОАО "Красцветмет") | Jewel alloy based on 585-standard gold |
DE202010011820U1 (en) | 2010-08-26 | 2010-11-04 | Eduard G. Fidel Gmbh | jewelry body |
WO2017147088A1 (en) * | 2016-02-23 | 2017-08-31 | Glassimetal Technology, Inc. | Gold-based metallic glass matrix composites |
-
2020
- 2020-08-12 DE DE102020121225.9A patent/DE102020121225A1/en active Pending
-
2021
- 2021-06-16 JP JP2022549888A patent/JP2023536770A/en active Pending
- 2021-06-16 US US17/800,674 patent/US20230295773A1/en active Pending
- 2021-06-16 KR KR1020227028943A patent/KR20230048622A/en unknown
- 2021-06-16 WO PCT/EP2021/066306 patent/WO2022033749A1/en unknown
- 2021-06-16 EP EP21734783.0A patent/EP4103757A1/en active Pending
- 2021-07-15 TW TW110126049A patent/TW202208641A/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR20230048622A (en) | 2023-04-11 |
DE102020121225A1 (en) | 2022-02-17 |
TW202208641A (en) | 2022-03-01 |
WO2022033749A1 (en) | 2022-02-17 |
JP2023536770A (en) | 2023-08-30 |
US20230295773A1 (en) | 2023-09-21 |
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Legal Events
Date | Code | Title | Description |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
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: REQUEST FOR EXAMINATION WAS MADE |
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17P | Request for examination filed |
Effective date: 20220915 |
|
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 |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20240426 |