Blue gloss fading-resistant 958 silver alloy for jewelry and process of blue gloss fading-resistant 958 silver alloy

A silver alloy and jewelry technology, applied in the field of alloys, can solve problems such as vulcanization blackening, lack of corrosion resistance, acceleration, etc., and achieve stable corrosion resistance, excellent economic and social benefits

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

This type of alloy does not have sufficient corrosion resistance to discolor after use, or

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 958 silver alloy with blue luster and anti-fading and its process for jewelry. In terms of weight percentage, the composition of the alloy is P:0.2wt.%, Sr:0.5wt.%, Mo:0.6wt.%, Ir:0.2wt.%, Co:1.0wt.%, In:0.3wt.%. , Ag: 95.0wt.%, the balance is copper. The above-mentioned 958 silver alloy with blue luster and anti-fading 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 1200 degrees during melting 10 minutes, rely on high-frequency induction furnace to stir evenly; after stirring evenly, keep warm at 1200 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. Roll the obtained ingot at room temperature, and the amount of rolling in each pass is 20-30%; after every two rollings, the intermediate annealing temperature is 520 degrees, and the ...

Embodiment 2

[0021] 958 silver alloy with blue luster and anti-fading and its process for jewelry. In terms of weight percentage, the composition of the alloy is P:0.3wt.%, Sr:0.6wt.%, Mo:0.8wt.%, Ir:0.4wt.%, Co:1.5wt.%, In:0.5wt.% , Ag: 96.0wt.%, the balance is copper. The above-mentioned 958 silver alloy with blue luster and anti-fading 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 1200 degrees during melting 10 minutes, rely on high-frequency induction furnace to stir evenly; after stirring evenly, keep warm at 1200 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. Roll the obtained ingot at room temperature, and the amount of rolling in each pass is 20-30%; after every two rollings, the intermediate annealing temperature is 520 degrees, and the t...

Embodiment 3

[0024] 958 silver alloy with blue luster and anti-fading and its process for jewelry. In terms of weight percentage, the composition of the alloy is P:0.2wt.%, Sr:0.5wt.%, Mo:0.7wt.%, Ir:0.3wt.%, Co:1.4wt.%, In:0.4wt.% , Ag: 95.0wt.%, the balance is copper. The above-mentioned 958 silver alloy with blue luster and anti-fading 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 1200 degrees during melting 10 minutes, rely on high-frequency induction furnace to stir evenly; after stirring evenly, keep warm at 1200 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. Roll the obtained ingot at room temperature, and the amount of rolling in each pass is 20-30%; after every two rollings, the intermediate annealing temperature is 520 degrees, and the t...

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PUM

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Abstract

The invention discloses a blue gloss fading-resistant 958 silver alloy for jewelry and a process of the blue gloss fading-resistant 958 silver alloy. The alloy comprises, by weight, 0.2-0.3% of P, 0.5-0.6% of Sr, 0.6-0.8% of Mo, 0.2-0.4% of Ir, 1.0-1.5% of Co, 0.3-0.5% of In, 95.0-96.0% of Ag, and the balance copper. A new material with blue appearance is provided for the 958 silver alloy for thejewelry in China, and the material has excellent fading resistance. The implementation and industrialization of the material can effectively promote the demands of product updating and industry upgrading in the jewelry industry of China, and rich economic gains and social benefits are obtained when the industry problems are solved.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a silver alloy. Background technique [0002] Silver has a white luster and is located between gold and copper on the periodic table. Although it is chemically less inert among noble metals, it is far more stable than copper and aluminum, and will not oxidize even when heated in air. The earliest uses of silver were decorations and currency, and later as tableware. With the development of industry, other uses have gradually been developed, such as: electrical contactors, brazing alloys, catalysts and photographic materials. China is a multi-ethnic country, and there has always been a large market for ethnic minority silver jewelry. With the improvement of people's living standards, silver jewelry and silverware will enter the general family more and faster. [0003] Because silver is cheap compared to gold, its soft texture can be processed into various jewelry accessories, ta...

Claims

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Application Information

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IPC IPC(8): C22C5/06C22C5/08C22C1/02C22F1/14C22F1/02C23C8/12
CPCC22C5/06C22C1/02C22C5/08C22F1/02C22F1/14C23C8/12
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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