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Nickel-free Miao silver alloy with excellent die-casting performance for corrosion-resistant jewelry

A corrosion-resistant, silver alloy technology, applied in the field of alloys, can solve the problems of lack of rich series of seedling silver alloys, achieve excellent recycling performance, improve fluidity, and improve the effect of thermal cracking resistance

Inactive Publication Date: 2018-11-13
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But it is a pity that Miao silver alloy has not formed a rich series like K gold at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A nickel-free silver seedling alloy for corrosion-resistant jewelry with excellent die-casting properties. In terms of weight percentage, the composition of the alloy is P:0.5wt.%, Bi:3.0wt.%, Sn:4.0wt.%, Te:0.4wt.%, Al:2.0wt.%, Fe:5.0wt.% , Ag: 40.0wt.%, the balance is copper. The above-mentioned a kind of nickel-free and corrosion-resistant silver alloy for jewelry with excellent die-casting performance comprises the following steps: adding the above proportioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; melting at 1400 degrees Keep warm for 10 minutes, stir evenly with high-frequency induction furnace electromagnetically; after stirring evenly, keep warm at 1400 degrees for 1 minute and cast out of the furnace; alloy casting uses a steel mold with a diameter of 20-30mm, and uses water cooling to cool down. The obtained ingot is rolled at room temperature, and the amount of rolling in each pass is 20-30%; after...

Embodiment 2

[0021]A nickel-free silver seedling alloy for corrosion-resistant jewelry with excellent die-casting properties. In terms of weight percentage, the composition of the alloy is P:0.8wt.%, Bi:3.5wt.%, Sn:5.0wt.%, Te:0.6wt.%, Al:3.5wt.%, Fe:8.0wt.% , Ag: 50.0wt.%, the balance is copper. The above-mentioned a kind of nickel-free and corrosion-resistant silver alloy for jewelry with excellent die-casting performance comprises the following steps: adding the above proportioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; melting at 1400 degrees Keep warm for 10 minutes, stir evenly with high-frequency induction furnace electromagnetically; after stirring evenly, keep warm at 1400 degrees for 1 minute and cast out of the furnace; alloy casting uses a steel mold with a diameter of 20-30mm, and uses water cooling to cool down. The obtained ingot is rolled at room temperature, and the amount of rolling in each pass is 20-30%; after ...

Embodiment 3

[0024] A nickel-free silver seedling alloy for corrosion-resistant jewelry with excellent die-casting properties. In terms of weight percentage, the composition of the alloy is P:0.6wt.%, Bi:3.2wt.%, Sn:4.5wt.%, Te:0.5wt.%, Al:2.8wt.%, Fe:5.8wt.% , Ag: 42.0wt.%, the balance is copper. The above-mentioned a kind of nickel-free and corrosion-resistant silver alloy for jewelry with excellent die-casting performance comprises the following steps: adding the above proportioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; melting at 1400 degrees Keep warm for 10 minutes, stir evenly with high-frequency induction furnace electromagnetically; after stirring evenly, keep warm at 1400 degrees for 1 minute and cast out of the furnace; alloy casting uses a steel mold with a diameter of 20-30mm, and uses water cooling to cool down. The obtained ingot is rolled at room temperature, and the amount of rolling in each pass is 20-30%; after...

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Abstract

The invention discloses a nickel-free Miao silver alloy with excellent die-casting performance for corrosion-resistant jewelry. The nickel-free Miao silver alloy comprises the compositions of, by weight, 0.5-0.8% of P, 3.0-3.5% of Bi, 4.0-5.0% of Sn, 0.4-0.6% of Te, 2.0-3.5% of Al, 5.0-8.0% of Fe, 40.0-50.0% of Ag, and the balance copper. According to the nickel-free Miao silver alloy, a materialscience solution is provided for a Miao silver alloy in China, thus a Miao silver product can be environmentally friendly and has no phenomenon of allergy after being processed, and the alloy has theexcellent die-casting performance; and through implementation and industrialization of the alloy, the demands of product renewal and industry upgrading in the jewelry industry in China can be effectively pushed.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a silver alloy. Background technique [0002] The price of sterling silver is relatively low among precious metals. Because of its good ductility and soft texture, it can be processed into various forms. It has been loved by people since ancient times and is widely used in the manufacture of jewelry, tableware and various decorations. Sterling silver is soft, although it is convenient for the processing of traditional jewelry, it is not conducive to inlaying gemstones. Moreover, due to the low hardness, after the jewelry is worn, small scratches will be produced on the surface, which will reduce the surface gloss and affect the appearance. In order to overcome these shortcomings of pure silver, people add various alloying elements to silver to improve the mechanical and other properties of silver, which forms a silver alloy. [0003] Miao silver is a kind of silver alloy unique ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/04C22C30/02C22C5/08C22C1/02C22F1/00C22F1/14C22F1/02C23C8/12
CPCC22C30/04C22C1/02C22C5/08C22C9/00C22C30/02C22F1/00C22F1/02C22F1/08C22F1/14C23C8/12
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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