High-hardness and anti-corrosion yellow low silver content alloy for Miao silver jewellery and technology thereof

A high-hardness and anti-corrosion technology, applied in the field of alloys, it can solve the problems of blackening, acceleration, and lack of corrosion resistance of vulcanization, achieve the effect of color and luster repair, guarantee user experience, and relax the solidification temperature range

Inactive Publication Date: 2018-11-20
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of alloy does not have sufficient corrosion resistance to discolor after use, or the vulcanization and blackening are accelerated due to wear and tear out of the base alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The invention discloses a high-hardness anti-corrosion yellow alloy with low silver content and its technology for Miao silver jewelry. In terms of weight percentage, the composition of the alloy is P:0.3wt.%, C:0.2wt.%, Li:0.5wt.%, W:0.3wt.%, Y:1.0wt.%, Zn:8.0wt.% , Ni: 5.0wt.%, Ag: 40.0wt.%, and the balance is copper. The above-mentioned high-hardness anti-corrosion yellow low-silver alloy for Miao silver jewelry and its process include the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; heat preservation at 1400 degrees during smelting 10 minutes, rely on high-frequency induction furnace to stir evenly; 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 reduction in each ...

Embodiment 2

[0022] The invention discloses a high-hardness anti-corrosion yellow alloy with low silver content and its technology for Miao silver jewelry. In terms of weight percentage, the composition of the alloy is P:0.5wt.%, C:0.4wt.%, Li:0.8wt.%, W:0.5wt.%, Y:1.5wt.%, Zn:1.0wt.% , Ni: 8.0wt.%, Ag: 50.0wt.%, and the balance is copper. The above-mentioned high-hardness anti-corrosion yellow low-silver alloy for Miao silver jewelry and its process include the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; heat preservation at 1400 degrees during smelting 10 minutes, rely on high-frequency induction furnace to stir evenly; 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 reduction in each ...

Embodiment 3

[0025] The invention discloses a high-hardness anti-corrosion yellow alloy with low silver content and its technology for Miao silver jewelry. In terms of weight percentage, the composition of the alloy is P:0.4wt.%, C:0.3wt.%, Li:0.6wt.%, W:0.4wt.%, Y:1.2wt.%, Zn:8.5wt.%. , Ni: 6.0wt.%, Ag: 45.0wt.%, and the balance is copper. The above-mentioned high-hardness anti-corrosion yellow low-silver alloy for Miao silver jewelry and its process include the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; heat preservation at 1400 degrees during smelting 10 minutes, rely on high-frequency induction furnace to stir evenly; 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 reduction in each...

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Abstract

The invention discloses a high-hardness and anti-corrosion yellow low silver content alloy for Miao silver jewellery and technology thereof. The high hardness and anti-corrosion yellow low silver content alloy comprises, by weight, 0.3-0.5wt.% of P, 0.2-0.4wt.% of C, 0.5-0.8wt.% of Li, 0.3-0.5wt.% of W, 1.0-1.5wt.% of Y, 8.0-1.0wt.% of Zn, 5.0-8.0wt.% of Ni, 40.0-50.0wt.% of Ag, and the balance copper. The material provides a solution for Chinese Miao silver alloy in materials science. Miao silver products have yellow color after processing, and the alloy has excellent high-hardness performance. Implement and industrialization of the material is capable of effectively promoting jewelry industry product renewal and industry upgrading in China. Difficulty in the industry can be overcome, andmeanwhile, abundant economic and social benefits can be obtained.

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] Adding a very small amount of alloying elemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/08C22C30/02C22C30/06C22F1/02C22F1/14A44C27/00C22C1/02
CPCC22C5/08A44C27/003C22C1/02C22C30/02C22C30/06C22F1/02C22F1/14
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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