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Fading-resistant high-tenacity 18 K violet gold for jewelry and processing process of fading-resistant high-tenacity 18 K violet gold

A processing technology and high toughness technology, applied in the field of gold alloys, can solve the problems of difficult processing, brittle materials, and small market sales, and achieve the effect of difficult processing and excellent toughness.

Inactive Publication Date: 2018-11-30
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only is it not easy to process, but also has limited commercial applications, and the market sales are not large
In addition, the purple color of jewelry made of this material will fade after 1 year of use
In addition, due to the influence of aging, the strength and hardness of the material will continue to increase during use, causing the material to become brittle and brittle to fracture
It not only affects the look and feel of this type of material, but also seriously reduces the market sales and marketing of this type of material
[0007] Although my country's jewelry and decoration industry has relatively large absolute figures in terms of quantity and output, the scale of enterprises is small and the core competitiveness is not strong.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Disclosed is an 18K purple gold with fade resistance and high toughness for jewelry and its processing technology. In terms of weight percentage, the composition of the alloy is Sr: 1.2wt.%, Zn: 2.0wt.%, Ca: 1.0wt.%, Ge: 1.0wt.%, In: 2.0wt.%, Al: 10.0wt.% , Au: 74.0wt.%, the balance is silver. The above-mentioned 18K purple gold with high fade resistance and high toughness for jewelry and its processing technology include the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; after melting the metal, use low-flow argon Protection, to avoid severe burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1200 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 50 -100mm steel mold, and c...

Embodiment 2

[0021]Disclosed is an 18K purple gold with fade resistance and high toughness for jewelry and its processing technology. In terms of weight percentage, the composition of the alloy is Sr: 1.4wt.%, Zn: 3.0wt.%, Ca: 1.2wt.%, Ge: 1.5wt.%, In: 4.0wt.%, Al: 12.0wt.% , Au: 76.0wt.%, the balance is silver. The above-mentioned 18K purple gold with high fade resistance and high toughness for jewelry and its processing technology include the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; after melting the metal, use low-flow argon Protection, to avoid severe burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1200 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 50 -100mm steel mold, and co...

Embodiment 3

[0024] Disclosed is an 18K purple gold with fade resistance and high toughness for jewelry and its processing technology. In terms of weight percentage, the composition of the alloy is Sr: 1.3wt.%, Zn: 2.5wt.%, Ca: 1.1wt.%, Ge: 1.2wt.%, In: 3.0wt.%, Al: 11.0wt.% , Au: 75.0wt.%, the balance is silver. The above-mentioned 18K purple gold with high fade resistance and high toughness for jewelry and its processing technology include the following steps: adding the above-mentioned raw materials into an argon-protected induction furnace, and using a graphite crucible; after melting the metal, use low-flow argon Protection, to avoid severe burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring in a high-frequency induction furnace; after stirring evenly, heat preservation at 1200 degrees for 1 minute and cast out of the furnace; gold alloy casting adopts a diameter of 50 -100mm steel mold, and c...

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PUM

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Abstract

The invention discloses fading-resistant high-tenacity 18 K violet gold for jewelry and a processing process of the fading-resistant high-tenacity 18 K violet gold. The alloy comprises the ingredientsof, in percentage by weight, 1.2-1.4% of Sr, 2.0-3.0% of Zn, 1.0-1.2% of Ca, 1.0-1.5% of Ge, 2.0-4.0% of In, 10.0-12.0% of Al, 74.0-76.0% of Au and the balance silver. By means of the fading-resistant high-tenacity 18 K violet gold for jewelry and the processing process, the current situation that the present K violet gold is insufficient in performance is avoided, and the development bottleneckin the jewelry field is effectively broken through. It can be predicted that implementation and industrialization of the material can obtain huge economic fruits and social benefits.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a gold alloy. Background technique [0002] Gold is a precious metal and one of the earliest metals discovered and developed by human beings. It is an important raw material for making jewelry and coins, and it is also an important reserve material of the country. It is not only regarded as a symbol of beauty and wealth, but also benefits human life with its unique value. In order to overcome the shortcomings of pure gold such as high price, low hardness, single color, easy to wear, and not delicate patterns, some other metal elements are usually added to pure gold to increase the hardness of jewelry gold, change its color tone and lower its melting point, so that There are gold alloys with different fineness and gold content, which are called K gold and form a series of K gold jewelry. [0003] my country's gold jewelry consumption has developed from the early 1980s to the pres...

Claims

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Application Information

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