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a gold alloy

A gold alloy and alloy technology, applied in the field of gold alloys, can solve the problems of poor color, affect quality, easy to be oxidized, etc., and achieve the effects of stable chemical properties, quality assurance, and long service life.

Inactive Publication Date: 2016-08-24
北海嘉华珠宝有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because 14K gold is mixed with many other elements, some elements are easily oxidized in the case of long-term exposure in the air, and the color is not maintained well, which affects its quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The present invention provides a kind of gold alloy, it is characterized in that, by weight percentage, comprises following composition:

[0051] 5% silver, 7% zinc, 5% copper, 2% niobium, 0.5% calcium, 0.5% zirconium, 4.5% erbium, 1% holmium, 1% epoxy resin, 0.2% curing agent, the rest is gold and unavoidable Impurities.

Embodiment 2

[0053] The present invention provides a kind of gold alloy, it is characterized in that, by weight percentage, comprises following composition:

[0054] 6.5% silver, 5% zinc, 4% copper, 3% niobium, 1.0% calcium, 0.8% zirconium, 3.5% erbium, 0.8% holmium, 2% epoxy resin, 0.5% curing agent, the rest is gold and unavoidable Impurities.

Embodiment 3

[0056] The present invention provides a kind of gold alloy, it is characterized in that, by weight percentage, comprises following composition:

[0057] 7% silver, 4.5% zinc, 3.5% copper, 3% niobium, 1.5% calcium, 0.5% zirconium, 4.5% erbium, 0.5% holmium, 3% epoxy resin, 1% curing agent, the rest is gold and unavoidable Impurities.

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Abstract

The invention relates to the technical field of alloys, and particularly relates to a gold alloy. The gold alloy comprises 5-10% of Ag, 3-7% of Zn, 2-5% of Cu, 2-4% of Nb, 0.5-1.5% of Ca, 0.5-1.5% of Zr, 2-4.5% of Er, 0.5-1% of Ho, 1-3% of epoxy resin and the balance of gold and inevitable impurities. The invention also provides a synthetic method of the gold alloy. The gold alloy provided by the invention has the advantages of excellent high-temperature property, very long service life, high-temperature resistance, oxidization resistance and creep resistance; gold jewelry made from the gold alloy has the advantages of low price, high hardness and long-lasting color and luster and can be worn for a long time.

Description

technical field [0001] The invention belongs to the technical field of alloys, in particular to a gold alloy. Background technique [0002] Gold alloy has a long history as a traditional material for producing gold jewelry. Usually, the gold alloy used in pure gold jewelry is 99.99% gold with 0.09% Cu or Ag metal added. The hardness is generally soft, so pure gold The product is easily deformed and is not suitable for inlaid jewelry. In addition, the color of pure gold is yellow, which is not fashionable enough in today's white jewelry. Therefore, common jewelry is made of 18K or 14K gold with a gold content of 75%. 25% of a piece of 18K gold jewelry is Ni, Cu, Zn, Ag and other metals, 14K gold jewelry has more than 58.33% of gold elements, and the rest are Cu, Zn, Ag and other metals. Since 14K gold can be mixed with more other elements than 18K gold, different colors can be adjusted, the hardness is high, the processing of inlaid gemstones is various, and the price is rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/02
Inventor 张宁
Owner 北海嘉华珠宝有限公司
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