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20K corrosion-resistant and brittle fracture-resistant gold alloy with spangle effect and process thereof

A 20K, corrosion-resistant technology, applied in the field of alloys, can solve problems such as limiting product share, affecting market sales and user experience, and achieving stable corrosion resistance

Inactive Publication Date: 2019-12-31
杭州辰卓科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems in the Span alloy industry have not been resolved for a long time, which not only affects the market sales and user experience of this type of product, but also seriously limits the share of this type of product in the international market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A 20K corrosion-resistant and brittle-fracture-resistant gold alloy with a Spank effect and its technology. In terms of weight percentage, the alloy composition is: Mn: 0.6wt.%, Ga: 0.1wt.%, Pd: 1.2wt.%, Hf: 0.2wt.%, In: 2.1wt.%, B: 0.1wt. %, Os: 0.5wt.%, Au: 83.0wt.%, the balance is silver.

[0018] The preparation and use method of the above-mentioned 20K corrosion-resistant and brittle-fracture-resistant gold alloy with the Spank effect includes the following steps: (a) ingredients: weighing the raw materials according to the above mass percentage; (b) smelting: using argon Melting is carried out in a non-vacuum induction melting furnace protected by gas, and the crucible is graphite crucible; the alloy melt is fully stirred at 1180 degrees for 10 minutes with electromagnetic stirring, and then iron molds are used for casting, and water cooling is used for rapid cooling; (c ) Subsequent pressure processing and heat treatment: the obtained ingot is rolled at room tem...

Embodiment 2

[0021] A 20K corrosion-resistant and brittle-fracture-resistant gold alloy with a Spank effect and its technology. In terms of weight percentage, the composition of the alloy is: Mn: 0.7wt.%, Ga: 0.3wt.%, Pd: 1.8wt.%, Hf: 0.4wt.%, In: 2.3wt.%, B: 0.2wt. %, Os: 0.6wt.%, Au: 84.0wt.%, the balance is silver.

[0022]The preparation and use method of the above-mentioned 20K corrosion-resistant and brittle-fracture-resistant gold alloy with the Spank effect includes the following steps: (a) ingredients: weighing the raw materials according to the above mass percentage; (b) smelting: using argon Melting is carried out in a non-vacuum induction melting furnace protected by gas, in which the crucible is a graphite crucible; the alloy melt is fully stirred at 1160 degrees for 10 minutes and fully stirred by electromagnetic stirring, and then cast in an iron mold, and rapidly cooled by water cooling; (c ) Subsequent pressure processing and heat treatment: the obtained ingot is rolled a...

Embodiment 3

[0025] A 20K corrosion-resistant and brittle-fracture-resistant gold alloy with a Spank effect and its technology. In terms of weight percentage, the composition of the alloy is: Mn: 0.6wt.%, Ga: 0.2wt.%, Pd: 1.5wt.%, Hf: 0.3wt.%, In: 2.3wt.%, B: 0.1wt. %, Os: 0.5wt.%, Au: 84.0wt.%, the balance is silver.

[0026] The preparation and use method of the above-mentioned 20K corrosion-resistant and brittle-fracture-resistant gold alloy with the Spank effect comprises the following steps: (a) batching: weighing the raw materials according to the above mass percentage; (b) smelting: using argon Melting is carried out in a non-vacuum induction melting furnace protected by gas, in which the crucible is a graphite crucible; the alloy melt is fully stirred at 1170 degrees for 10 minutes and fully stirred by electromagnetic stirring, and then cast in an iron mold, and rapidly cooled by water cooling; (c ) Subsequent pressure processing and heat treatment: the obtained ingot is rolled at...

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Abstract

The invention discloses a 20K corrosion-resistant and brittle fracture-resistant gold alloy with the spangle effect and a process thereof. The gold alloy is prepared from the components in percentageby weight: 0.5-0.8wt.% of Mn, 0.1-0.3wt.% of Ga, 1.0-2.0wt.% of Pd, 0.2-0.5wt.% of Hf, 2.0-2.5wt.% of In, 0.1-0.2wt.% of B, 0.4-0.8wt.% of Os, 83.0-84.0wt.% of Au and the balance of silver. The alloyis the gold alloy for jewelry, the gold alloy with the spangle effect is provided, that is to say, the surface of gold jewelry made of the material can be gorgeous like pearl spots. Due to the outstanding appearance of the jewelry surface and simple smelting and processing technology, the material can meet the urgent needs of domestic and foreign markets after being applied to the jewelry industry, and great economic value can also be obtained at the same time.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a gold-based alloy. Background technique [0002] Pure gold has a very beautiful yellow luster and is chemically stable. It is not easy to change color when heated, that is, it has excellent anti-oxidation properties. Throughout history and consumer markets at home and abroad, gold has always been used as a jewelry material and is favored by people. With the improvement of modern consumption awareness, the patterns of jewelry made of gold are constantly being refurbished. In the past, single gold jewelry was gradually replaced by beautiful and various gold alloys. In addition to being used for jewelry, these gold alloys are also mostly used for watch cases, watch straps, spectacle frames and various handicrafts. In addition to having different colors (commonly white, yellow, red and pink), these gold alloys have good chemical stability, good surface anti-tarnish performance, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/02C22C1/02C22F1/14C22F1/02
CPCC22C1/02C22C5/02C22F1/002C22F1/02C22F1/14
Inventor 刘亚军
Owner 杭州辰卓科技有限公司
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