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Tibetan silver alloy with characteristics of low density and corrosion resistance for casting and process thereof

A corrosion-resistant, low-density technology, applied in the field of alloys, can solve the problems that the chemical properties of jewelry cannot provide sufficient performance guarantees, the alloy’s anti-tarnish performance is not outstanding, and the cold working performance is poor, and achieve excellent low-density characteristics, excellent value retention performance, The effect of reducing density

Inactive Publication Date: 2019-11-22
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Customers require these alloy jewelry to keep at least 1 year without discoloration, but the chemical properties of these jewelry cannot provide sufficient performance guarantee
In addition to the influence of the use environment and storage method, the anti-tarnish performance of the alloy itself is not outstanding to a large extent.
Moreover, this type of alloy also faces a series of shortcomings such as obvious casting defects and poor cold working performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A Tibetan silver alloy with low-density and corrosion-resistant characteristics for casting and its process. In terms of weight percentage, the composition of the alloy is B: 0.2wt.%, Li: 5.0wt.%, Ge: 5.0wt.%, Te: 0.3wt.%, Mg: 30.0wt.%, Cr: 4.0wt.% , Ag: 29.0wt.%, the balance is copper. The above-mentioned Tibetan silver alloy for casting with low-density, corrosion-resistant characteristics and its process includes the following steps: adding the raw materials in the above proportion into an induction furnace under an argon atmosphere, and using a graphite crucible; The temperature is kept for 10 minutes, and the high-frequency induction furnace is used to stir evenly; after stirring, the temperature is kept at 1200°C for 1 minute and cast out; the alloy casting adopts a steel mold with a diameter of 20-30mm and is cooled by water. The obtained ingot is rolled at room temperature, and the amount of each pass is 20-30%; the intermediate annealing temperature after each ...

Embodiment 2

[0021] A Tibetan silver alloy with low-density and corrosion-resistant characteristics for casting and its process. In terms of weight percentage, the composition of the alloy is B: 0.3wt.%, Li: 6.0wt.%, Ge: 8.0wt.%, Te: 0.5wt.%, Mg: 40.0wt.%, Cr: 6.0wt.% , Ag: 31.0wt.%, the balance is copper. The above-mentioned Tibetan silver alloy for casting with low-density, corrosion-resistant characteristics and its process includes the following steps: adding the raw materials in the above proportion into an induction furnace under an argon atmosphere, and using a graphite crucible; The temperature is kept for 10 minutes, and the high-frequency induction furnace is used to stir evenly; after stirring, the temperature is kept at 1200°C for 1 minute and cast out; the alloy casting adopts a steel mold with a diameter of 20-30mm and is cooled by water. The obtained ingot is rolled at room temperature, and the amount of each pass is 20-30%; the intermediate annealing temperature after each ...

Embodiment 3

[0024] A Tibetan silver alloy with low-density and corrosion-resistant characteristics for casting and its process. In terms of weight percentage, the composition of the alloy is B: 0.2wt.%, Li: 5.2wt.%, Ge: 6.0wt.%, Te: 0.4wt.%, Mg: 35.0wt.%, Cr: 5.0wt.% , Ag: 29.0wt.%, the balance is copper. The above-mentioned Tibetan silver alloy for casting with low-density, corrosion-resistant characteristics and its process includes the following steps: adding the raw materials in the above proportion into an induction furnace under an argon atmosphere, and using a graphite crucible; The temperature is kept for 10 minutes, and the high-frequency induction furnace is used to stir evenly; after stirring, the temperature is kept at 1200°C for 1 minute and cast out; the alloy casting adopts a steel mold with a diameter of 20-30mm and is cooled by water. The obtained ingot is rolled at room temperature, and the amount of each pass is 20-30%; the intermediate annealing temperature after each ...

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Abstract

The invention discloses a Tibetan silver alloy with the characteristics of low density and corrosion resistance for casting and a process thereof. The Tibetan silver alloy comprises the following components of, by weight, 0.2wt.%-0.3wt.% of B, 5.0wt.%-6.0wt.% of Li, 5.0wt.%-8.0wt.% of Ge, 0.3wt.%-0.5wt.% of Te, 30.0wt.%-40.0wt.% of Mg, 4.0wt.%-6.0wt.% of Cr, 29.0wt.%-31.0wt.% of Ag and the balancecopper. The Tibetan silver alloy a solution in the aspect of material science for the Tibetan silver alloy in China, the alloy has light-weight characteristic, and the alloy has excellent casting performance. The implementation and industrialization of the material can effectively promote the product updating and industry upgrading requirements of the jewelry industry in China.

Description

Technical field [0001] The invention relates to the technical field of alloys, in particular to a silver alloy. Background technique [0002] Silver has both the value of beauty and function, and is a widely cherished metal material in ancient cultures around the world. With the improvement of human material civilization level and the transformation of lifestyle, jewelry is increasingly regarded as artistic treasures that show personality, cultivate temperament and improve the quality of life. In recent years, silver jewelry has been loved by more and more people for its low price, noble quality like platinum and elegance like diamonds. Silver jewelry has low prices, many styles and rich styles, combined with popular clothing, and is loved by many young people. In addition, the organic combination with different inlaid materials makes the styles of silver jewelry more colorful, with as many as tens of thousands or hundreds of thousands. .The novelty and beauty of silver jewelr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C1/02C22F1/00
CPCC22C1/02C22C23/00C22C30/02C22F1/06
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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