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10K grey gold alloy for friction resistance and corrosion resistance jewelry materials and technology thereof

A gray gold alloy, corrosion-resistant technology, applied in the field of gold alloys, can solve the problems of reducing market sales and market promotion, weak core competitiveness, small enterprise scale, etc., achieving easy control of organization, good processing deformation performance, fine organizational effect

Inactive Publication Date: 2018-11-30
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many cracks are often found after casting in the jewelry manufacturing workshop, and there is no plastic deformation at the fracture, showing a typical brittle fracture. Manufacturers are often troubled by this problem
It not only affects the look and feel of this type of material, but also seriously reduces the market sales and marketing of this type of material
[0008] Although my country's jewelry and decoration industry has relatively large absolute figures in terms of quantity and output, the scale of enterprises is small and the core competitiveness is not strong.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 10K gray gold alloy and its process for friction-resistant and corrosion-resistant jewelry materials. In terms of weight percentage, the composition of the alloy is Li:0.4wt.%, S:0.2wt.%, Ca:1.2wt.%, In:1.4wt.%, Co:20.0wt.%, Fe:15.0wt.% , Au: 41.0wt.%, the balance is silver. The above-mentioned 10K gray gold alloy for friction-resistant and corrosion-resistant jewelry materials and its process includes the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; after melting the metal, use low-flow argon Protection, to avoid severe burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1200 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 50 -100mm steel mold, and cooling by water cool...

Embodiment 2

[0022] 10K gray gold alloy and its process for friction-resistant and corrosion-resistant jewelry materials. In terms of weight percentage, the composition of the alloy is Li:0.6wt.%, S:0.3wt.%, Ca:1.8wt.%, In:1.8wt.%, Co:24.0wt.%, Fe:18.0wt.% , Au: 42.0wt.%, the balance is silver. The above-mentioned 10K gray gold alloy for friction-resistant and corrosion-resistant jewelry materials and its process includes the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; after melting the metal, use low-flow argon Protection, to avoid severe burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1200 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 50 -100mm steel mold, and cooling by water coolin...

Embodiment 3

[0025] 10K gray gold alloy and its process for friction-resistant and corrosion-resistant jewelry materials. In terms of weight percentage, the composition of the alloy is Li:0.5wt.%, S:0.2wt.%, Ca:1.5wt.%, In:1.6wt.%, Co:22.0wt.%, Fe:16.0wt.% , Au: 41.0wt.%, the balance is silver. The above-mentioned 10K gray gold alloy for friction-resistant and corrosion-resistant jewelry materials and its process includes the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; after melting the metal, use low-flow argon Protection, to avoid severe burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1200 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 50 -100mm steel mold, and cooling by water cool...

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PUM

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Abstract

The invention discloses a 10K grey gold alloy for friction resistance and corrosion resistance jewelry materials and technology thereof. The alloy comprises, by weight, 0.4%-0.6% of Li, 0.2%-0.3% of S, 1.2%-1.8% of Ca, 1.4%-1.8% of In, 20.0%-24.0% of Co, 15.0%-18.0% of Fe, 41.0%-42.0% of Au and the balance silver. The current situation of insufficient K-grey gold performance is solved, and the development bottleneck in the jewelry field is effectively broken through. It can be expected that the implementation and industrialization of the material can achieve substantial economic gain and social benefits.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a gold alloy. Background technique [0002] Since ancient times, pure gold jewelry has been deeply loved by people, not only because it can fully reflect the wealth and luxury of the owner, but also has a great value preservation effect. At present, the annual demand for gold jewelry materials accounts for about 80% of the total gold demand. Pure gold jewelry has beautiful color, good corrosion resistance and discoloration resistance, but low hardness, easy deformation, poor wear resistance, and the surface is easy to be worn and scratched, resulting in the loss of gold and affecting its smoothness. Therefore, K gold can be used for jewelry inlaid jewelry, that is, gold alloys are made by adding alloying elements to pure gold, so as to improve the strength and wear resistance of gold alloys for jewelry, and adjust the color of gold alloys. [0003] Gold jewelry can be divided in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/02C22C1/02C22F1/14
CPCC22C5/02C22C1/02C22F1/14
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD