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Hydrogen sulfide corrosion resisting blue 10K gold for jewelries and technology thereof

A technology that is resistant to hydrogen sulfide and jewelry, applied in the field of gold alloys, can solve the problems that have not yet made progress, limit market share, affect product market sales and user experience, etc., achieve strong resistance to intergranular corrosion, good welding performance, Aesthetically pleasing effect

Inactive Publication Date: 2018-11-23
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long-term unsolved problems in the industry not only affect the market sales and user experience of related products, but also seriously limit the market share of such products in the international field
The development and industrialization of blue K gold with advanced performance is already an inevitable problem in the field of jewelry. For a long time, many domestic research institutions and enterprises have made multi-faceted attempts, but unfortunately, so far, no substantial progress has been made. sexual progress

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A blue 10K gold for jewelry resistant to hydrogen sulfide corrosion and its technology. In terms of weight percentage, the composition of the alloy is B: 0.3wt.%, Nb: 1.0wt.%, Hf: 0.5wt.%, Si: 1.8wt.%, Y: 0.6wt.%, Ho: 0.1wt.% , Au: 41.0wt.%, the balance is aluminum. The above-mentioned blue 10K gold for jewelry resistant to hydrogen sulfide corrosion and its process include the following steps: adding the above proportioned raw materials into an argon-protected induction furnace, and using a graphite crucible; Protected by argon gas to avoid serious burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring by 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 The steel mold with a diameter of 50-100mm is cooled by water cooling. The obtained ingot is rolled at room temperature,...

Embodiment 2

[0021]A blue 10K gold for jewelry resistant to hydrogen sulfide corrosion and its technology. In terms of weight percentage, the composition of the alloy is B:0.5wt.%, Nb:1.8wt.%, Hf:0.9wt.%, Si:2.5wt.%, Y:0.8wt.%, Ho:0.2wt.% , Au: 42.0wt.%, the balance is aluminum. The above-mentioned blue 10K gold for jewelry resistant to hydrogen sulfide corrosion and its process include the following steps: adding the above proportioned raw materials into an argon-protected induction furnace, and using a graphite crucible; Protected by argon gas to avoid serious burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring by 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 The steel mold with a diameter of 50-100mm is cooled by water cooling. The obtained ingot is rolled at room temperature, and th...

Embodiment 3

[0024] A blue 10K gold for jewelry resistant to hydrogen sulfide corrosion and its technology. In terms of weight percentage, the composition of the alloy is B:0.4wt.%, Nb:1.5wt.%, Hf:0.4wt.%, Si:1.9wt.%, Y:0.7wt.%, Ho:0.1wt.% , Au: 41.0wt.%, the balance is aluminum. The above-mentioned blue 10K gold for jewelry resistant to hydrogen sulfide corrosion and its process include the following steps: adding the above proportioned raw materials into an argon-protected induction furnace, and using a graphite crucible; Protected by argon gas to avoid serious burning of alloy elements due to large air flow; heat preservation at 1200 degrees for 10 minutes during smelting, and electromagnetic stirring by 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 The steel mold with a diameter of 50-100mm is cooled by water cooling. The obtained ingot is rolled at room temperature, and t...

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PUM

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Abstract

The invention discloses hydrogen sulfide corrosion resisting blue 10K gold for jewelries and a technology thereof. An alloy is prepared from the following components in percentage by weight: 0.3 to 0.5 weight percent of B, 1.0 to 1.8 weight percent of Nb, 0.5 to 0.9 weight percent of Hf, 1.8 to 2.5 weight percent of Si, 0.6 to 0.8 weight percent of Y, 0.1 to 0.2 weight percent of Ho, 41.0 to 42.0weight percent of Au and the balance of aluminum. By adopting the hydrogen sulfide corrosion resisting blue 10K gold for the jewelries, a current situation that the performance of current blue K goldis not enough is solved, and a development bottleneck in the field of the jewelries is effectively broken through. Therefore, implementation and industrialization of a material can obtain abundant economic gains 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 known as the king of metals. It is not only regarded as a symbol of beauty and wealth, but also benefits human life with its unique value. Soft gold deforms easily and wears out easily. Therefore, people began to try to add a small amount of other alloying elements to pure gold to increase the hardness of gold. Among them, silver, copper, zinc, etc. are all metals that are commonly added to gold to increase its strength and toughness. [0003] Gold with alloying elements added, that is, gold alloy. The system for determining the gold content in gold alloys is called Karat in English, and it can also be abbrevia...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/02C22F1/04A44C27/00
CPCC22C21/00A44C27/003C22C1/026C22F1/04
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD