Jewelry platinum alloy with golden yellow and corrosion resistance

A corrosion-resistant, platinum alloy technology, applied in the field of platinum alloys, can solve the problems affecting the promotion of platinum alloys and the expansion of market share, weak core competitiveness, small scale of enterprises, etc., achieve colorful colors, overcome easy fading, interior clean effect

Inactive Publication Date: 2018-08-31
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But unfortunately, among the jewelry made of platinum alloys on the market, only white ones have reached the performance of jewelry.
Although a layer of colored coatings can be prepared on the surface of platinum jewelry by ion plating, these coatings generally fall off, fade and corrode after 6 months of use, which seriously affects platinum alloys as jewelry alloys. Further promotion and expansion of market share
[0005] Although my country's jewelry 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

[0015] A platinum alloy for jewelry that has a golden yellow color and is resistant to corrosion. In terms of weight percentage, the composition of the alloy is: Te:0.2wt.%, Mg:1.0wt.%, Mo:0.4wt.%, Ti:1.5wt.%, Er:0.2wt.%, Zn:4.0wt. %, Y: 1.0wt.%, Cu: 20.0wt.%, and the balance is platinum. The preparation method of the above-mentioned gold-like yellow and corrosion-resistant platinum alloy for jewelry comprises the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; Protected by argon gas to avoid serious burning of alloy elements due to large air flow; heat preservation at 1850 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1850 degrees for 1 minute and cast out of the furnace; platinum alloy casting adopts The steel mold with a diameter of 100-200mm is cooled by water cooling. Roll the obtain...

Embodiment 2

[0018]A platinum alloy for jewelry that has a golden yellow color and is resistant to corrosion. In terms of weight percentage, the composition of the alloy is: Te: 0.3wt.%, Mg: 2.5wt.%, Mo: 0.8wt.%, Ti: 2.0wt.%, Er: 0.4wt.%, Zn: 6.0wt. %, Y: 1.4wt.%, Cu: 24.0wt.%, and the balance is platinum. The preparation method of the above-mentioned gold-like yellow and corrosion-resistant platinum alloy for jewelry comprises the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; Protected by argon gas to avoid serious burning of alloy elements due to large air flow; heat preservation at 1850 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1850 degrees for 1 minute and cast out of the furnace; platinum alloy casting adopts The steel mold with a diameter of 100-200mm is cooled by water cooling. Roll the o...

Embodiment 3

[0021] A platinum alloy for jewelry that has a golden yellow color and is resistant to corrosion. In terms of weight percentage, the composition of the alloy is: Te: 0.2wt.%, Mg: 1.8wt.%, Mo: 0.5wt.%, Ti: 1.8wt.%, Er: 0.3wt.%, Zn: 5.0wt. %, Y: 1.2wt.%, Cu: 22.0wt.%, and the balance is platinum. The preparation method of the above-mentioned gold-like yellow and corrosion-resistant platinum alloy for jewelry comprises the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; Protected by argon gas to avoid serious burning of alloy elements due to large air flow; heat preservation at 1850 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1850 degrees for 1 minute and cast out of the furnace; platinum alloy casting adopts The steel mold with a diameter of 100-200mm is cooled by water cooling. Roll the ...

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PUM

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Abstract

The invention discloses jewelry platinum alloy with golden yellow and corrosion resistance. The alloy comprises the ingredients of, in percentage by weight, 0.2-0.3% of Te, 1.0-2.5% of Mg, 0.4-0.8% ofMo, 1.5-2.0% of Ti, 0.2-0.4% of Er, 4.0-6.0% of Zn, 1.0-1.4% of Y, 20.0-24.0% of Cu and the balance platinum. By means of the jewelry platinum alloy with golden yellow and corrosion resistance, the yellow platinum alloy with the extremely excellent performance is provided, and kinds of the platinum alloy used for jewelry in the market are also greatly enriched at the same time.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a platinum alloy. Background technique [0002] In addition to gold and K gold, platinum is also a precious metal commonly used in jewelry. As early as 700 BC, the ancient Egyptians used platinum to cast hieroglyphs and decorate the sacred box. Today, platinum jewelry has been favored by more and more consumers. As one of the rarest precious metals in the world, the characteristics of platinum are obvious. Platinum is extremely pure, almost free of impurities, and its elegant and simple color is inherent and will not fade with the passage of time. The white color of platinum can best show the brilliance and nobility of diamonds, and it is the best base for precious jewelry. The purity of platinum will not cause allergic reactions on the skin. Platinum has a high specific gravity of 21.45g / cm 3 (The specific gravity of gold and silver is 19. 3g / cm 3 and 10. 5g / cm 3 ), has s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/04C22C1/02C22F1/14
CPCC22C5/04C22C1/02C22F1/14
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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