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Silver alloy with vulcanization resistance and preparation process thereof

A preparation process and anti-sulfurization technology, which is applied in metal processing equipment, manufacturing tools, casting and molding equipment, etc., can solve the problems of silver hair darkening and blackening, achieve fine details, prevent excessive temperature, and improve corrosion resistance

Inactive Publication Date: 2020-04-03
浙江皇城工坊文化发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The presence of sulfides, oxides, ultraviolet rays and water vapor in the atmosphere makes silver prone to darkening and blackening during use

Method used

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  • Silver alloy with vulcanization resistance and preparation process thereof
  • Silver alloy with vulcanization resistance and preparation process thereof
  • Silver alloy with vulcanization resistance and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] refer to figure 1, a silver alloy with anti-sulfurization performance, its raw materials include: 97 parts of silver, 0.3 part of germanium, 0.06 part of palladium, 0.3 part of aluminum, 0.3 part of zinc and 0.5 part of neodymium in parts by weight. Its preparation process comprises the following steps:

[0039] S1: Prepare materials. According to the above-mentioned parts by weight in this embodiment, the above-mentioned raw materials were weighed and set aside.

[0040] S2: Smelting. Firstly, the crucible is cleaned. The cleaning process is to pour alcohol with a mass fraction of 75% into the crucible for soaking and cleaning for 5 minutes, and then use a high-pressure air gun to dry the alcohol in the crucible. Then put into the crucible the borax that borax weight part is 0.04 part. Then put the silver weighed by S1 into the crucible, then put the crucible into the vacuum tube furnace, and pass argon gas into the vacuum tube furnace for protection. Adjust the t...

Embodiment 17

[0048] The difference between embodiment 17 and embodiment 8 is that there is no neodymium in its raw material.

Embodiment 18

[0049] The difference between Example 18 and Example 1 is that there is no neodymium in the raw material.

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Abstract

The invention relates to the technical field of silver alloy, and discloses a silver alloy with vulcanization resistance, which is characterized in that the raw materials of the silver alloy comprisethe following components, in parts by weight, 96 to 96 parts of silver, 0.1 to 0.5 parts of germanium and 0.02 to 0.1 parts of palladium. The preparation process of the silver alloy comprises the following steps: S1, preparing materials; S2, smelting the materials; S3, postprocessing the materials to obtain the silver alloy with vulcanization resistance. The silver alloy formed by mixing palladiumand silver has vulcanization resistance and corrosion resistance. Further, the germanium is added to the alloy so that the vulcanization resistance of the alloy can be further improved, and the oxidation resistance of the alloy can be improved. Thus, the oxidation resistance of the finally produced silver alloy can be improved, and the discoloration resistance of the silver alloy can be improved.By melting the silver firstly, the amount of lost silver can be reduced, and the crystals of the finally formed silver alloy can be made stable.

Description

technical field [0001] The invention relates to the technical field of silver alloys, more specifically, it relates to a silver alloy with anti-sulfurization performance and a preparation process thereof. Background technique [0002] Sterling silver is a lustrous white precious metal. Historically, it has become an important material for making jewelry, decorations, silverware and tableware all over the world because of its beautiful luster, stable chemical properties and collection and ornamental value. In modern society, it has become an indispensable industrial raw material in the field of microelectronics because of its excellent electrical and thermal conductivity at room temperature and good mechanical properties. [0003] At present, there are many kinds of silver ornaments on the market. In order to improve the processing performance and use performance of silver ornaments, a small amount of sealing alloy is often added to pure silver to reduce the silver content an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/06C22C1/02B22D27/04B22C9/02
CPCB22C9/02B22D27/04C22C1/02C22C5/06
Inventor 王骋翾潘浩
Owner 浙江皇城工坊文化发展有限公司