Classifications

• • 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
• • 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
• • 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 for a goldsmith's product, jewelery, watchmaking or a similar product consisting of a mixture of copper, silver and gold or other components.
• Low copper alloys are regularly used to influence the strength and color of the alloy.
• the 9 carat gold has a gold content of this alloy is 37.5% fine gold.
• the 9-carat yellow gold 37.5% fine gold, 12.1% silver, 44.4% copper and 6% zinc should be mixed.
• To obtain 9-carat red gold 37.5% fine gold 55% copper and 7.5% silver must be mixed, whereas to obtain 9-carat pink gold it is advisable to mix 37 , 5% fine gold, 42.5% copper and 20% silver.
• this alloy which is poor in fine gold, can become dull fairly quickly depending on the manufacturing process chosen. It can be brittle and hardly repairable by welding when the alloy is of low quality.
• WO2012017299 discloses an alloy for gold articles, jewelery or the like, composed of gold in a total amount of from 4 to 4.5% by weight, silver in a total amount of from 35 to 68% by weight, palladium in a total amount ranging from 8 to 30% by weight, of at least one element chosen from iridium, copper, zinc, nickel and silicon in a total amount ranging from 18 to 32% by weight or indium in a total amount of from 25 to 32% by weight, and optionally at least one other component in a total amount of up to 3% by weight.
• the object of the present invention is to provide a quality and resistant alloy for a goldsmith, jewelery, watchmaking or similar product, the alloy having an interesting compromise between a color and a shine of a copper red meeting the aesthetic requirements of the aforementioned products, resistant to oxidation during heat treatment operations, brazing, welding, fusion and laser engraving and whose deformability allows its transformation without risk of cracking and which is economical to achieve.
• Another object of the present invention is to provide a goldsmith, jewelery, watchmaking or similar product of a copper-rich alloy that can provide health benefits when the product is worn by a user.
• the present invention provides an alloy for goldsmithery, jewelery, watchmaking or a similar product consisting of a mixture of:
• An advantage of the present invention is to provide with this alloy health benefits. Indeed, the wearing of jewelry and especially copper bracelets for therapeutic purposes is proven in many ancient civilizations. Thanks to the anti-inflammatory properties of copper, wearing a copper bracelet will allow you to effectively treat pain related to osteoarthritis and joint pain. Insufficient copper intake can lead to central nervous system disorders, cardiovascular problems, bone system problems. The difficulty is in the dosage when one knows that the body needs a small amount of copper and that excessive intake will also have negative effects. This is why the wearing of an alloy-based product according to this Copper bracelet invention is recommended to all those who suffer from copper deficiencies.
• the alloy according to the present invention allows to pass through the epidermis to the blood the necessary amount of copper to the body combining healing and elegance virtues.
• the copper is in a total amount of 50 to 80% by weight
• the silver is in a total amount of 10 to 25% by weight
• the gold in total amount from 10 to 25% by weight.
• the copper is in a total amount of 60 to 70% by weight
• the silver is in a total amount of 10 to 20% by weight
• the gold in quantity total of 10 to 20% by weight.
• the copper is in a total amount of 70 to 80% by weight
• the silver is in a total amount of 10 to 20% by weight
• the gold in a total amount of 10 to 20% by weight. weight.
• the copper is in a total amount of 80 to 90% by weight
• the silver is in a total amount of 5 to 15% by weight
• the gold is in a total amount of 5 to 15% by weight.
• the alloy according to one of the preceding embodiments further comprises palladium in a total amount of 0.1 to 5% by weight, especially as the only optional element.
• An alloy according to the present invention can be used in the manufacture of a jewelery article or a timepiece or even watch components, especially intended to be worn flush with the skin to provide health benefits through at the high concentration of copper.
• a detailed description of an embodiment of the alloy of the present invention will now be given with reference to the single figure given solely by way of example and not limiting.
• a wristwatch comprises a watch case 1 comprising an alloy according to the invention composed for example of copper of a total amount of 85% by weight, of silver in a total amount of 7.5% by weight and of in a total amount of 7.5% by weight as well.
• This alloy has a red copper color. In addition to having an aesthetic interest, this alloy has all the essential characteristics to meet the watchmaking normative requirements. Indeed, the present alloy meets the standards currently in force, in the Swiss watch industry, and in particular concerning fields as varied as the terminology, the watchmaking construction, the tests and requirements in the field of antimagnetism and the resistance to the tightness and shock.
• the watch case 1 comprises a case composed of the alloy according to the present invention comprising for example copper in a total amount of 85% by weight, silver in a total amount of 7.5% by weight. weight and gold in a total amount of 7.5% by weight but still hours 2 and minute 2 'needles include the same alloy.
• winding crown 3 and the watch face 4 are also made in the alloy according to the present invention.
• all the watch components are also in this alloy with a high concentration of copper or any alloy according to the present invention.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Manufacturing & Machinery (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Adornments (AREA)

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• 2018
  • 2018-04-12 CH CH00463/18A patent/CH714879B1/fr not_active IP Right Cessation
• 2019
  • 2019-04-02 WO PCT/IB2019/052697 patent/WO2019197941A2/fr not_active Ceased

Patent Citations (1)

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