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18K corrosion-resistant brittle-fracture-resistant gold alloy with spangle effect and process thereof

A 18K, corrosion-resistant technology, applied in the field of alloys, can solve problems such as limiting product share, affecting market sales and user experience, and achieves excellent filling mold performance, reduced scum generation, and excellent flow properties.

Inactive Publication Date: 2019-08-09
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] An 18K 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: In: 0.6wt.%, Nb: 0.1wt.%, Sc: 1.2wt.%, Ni: 0.2wt.%, Hf: 2.1wt.%, Sn: 0.1wt. %, Sb: 0.5wt.%, Au: 74.0wt.%, the balance is silver.

[0018] The above-mentioned 18K corrosion-resistant and brittle-fracture-resistant gold alloy with the Sapphire effect and its process include the following steps: (a) batching: weighing the raw materials according to the above mass percentage; (b) smelting: using argon protection The non-vacuum induction melting furnace is used for melting, 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) Pressure processing and heat treatment: the obtained ingot is rolled at room temperature, and the amount of each...

Embodiment 2

[0021] An 18K 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: In: 0.7wt.%, Nb: 0.2wt.%, Sc: 1.8wt.%, Ni: 0.4wt.%, Hf: 2.5wt.%, Sn: 0.1wt. %, Sb: 0.8wt.%, Au: 76.0wt.%, the balance is silver.

[0022]The above-mentioned 18K corrosion-resistant and brittle-fracture-resistant gold alloy with the Sapphire effect and its process include the following steps: (a) batching: weighing the raw materials according to the above mass percentage; (b) smelting: using argon protection The non-vacuum induction melting furnace is used for melting, and the crucible is graphite crucible; the alloy melt is fully stirred at 1150 degrees for 10 minutes with electromagnetic stirring, and then iron molds are used for casting, and water cooling is used for rapid cooling; (c) Pressure processing and heat treatment: the obtained ingot is rolled at room temperature, and the amount of each ...

Embodiment 3

[0025] An 18K 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: In: 0.6wt.%, Nb: 0.2wt.%, Sc: 1.5wt.%, Ni: 0.3wt.%, Hf: 2.1wt.%, Sn: 0.1wt. %, Sb: 0.5wt.%, Au: 75.0wt.%, the balance is silver.

[0026] The above-mentioned 18K corrosion-resistant and brittle-fracture-resistant gold alloy with the Sapphire effect and its process include the following steps: (a) batching: weighing the raw materials according to the above mass percentage; (b) smelting: using argon protection The non-vacuum induction melting furnace is used for melting, and the crucible is graphite crucible; the alloy melt is fully stirred at 1190 degrees for 10 minutes and fully stirred by electromagnetic stirring, and then cast in an iron mold, and rapidly cooled by water cooling; (c) Pressure processing and heat treatment: the obtained ingots are rolled at room temperature, and the amount of each ...

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Abstract

The invention discloses an 18K corrosion-resistant brittle-fracture-resistant gold alloy with a spangle effect and a process thereof. The 18K corrosion-resistant brittle-fracture-resistant gold alloywith the spangle effect comprises the following components of, by weight, 0.5%-0.8% of In, 0.1%-0.3% of Nb, 1.0%-2.0% of Sc, 0.2%-0.5% of Ni, 2.0%-2.5% of Hf, 0.1%-0.2% of Sn, 0.4%-0.8% of Sb, 74.0%-76.0% of Au and the balance silver. According to the 18K corrosion-resistant brittle-fracture-resistant gold alloy, the gold alloy with the spangle effect is provided for the gold alloy for jewelry, namely, the surface of the gold jewelry prepared by adopting the material can be pearly colorful; and due to the fact that the surface impression of the jewelry is superior and the smelting and processing technology is simple, the material meets the urgent need of the domestic and foreign market and also can obtain great economic value at the same time after being used in the jewelry industry.

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): C22C5/02C22C1/02B22C9/22B22C9/06C22F1/14C22F1/02A44C27/00
CPCA44C27/003B22C9/06B22C9/22C22C1/02C22C5/02C22F1/002C22F1/02C22F1/14
Inventor 刘亚军
Owner 杭州辰卓科技有限公司
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