Silver alloy with high hardness and aging softening resistance and preparation method thereof

Abstract

The invention provides a silver alloy with high hardness and aging softening resistance. The silver alloy has the beneficial effects as follows: the silver ingredient of which the weight component is 92.5-95.0, particularly preferably 92.5 is adopted, so that on the one hand, the silver is large in ratio, so as to take up value advantage, and on the other hand, the other ingredients are added on the basis of the silver with the ratio. Therefore, the problem of poor aging softening resistance of the silver alloy prepared by the silver alloy production technology in modern society is solved when the mechanical property of the alloy is obviously improved, and the oxidation resistance of the silver alloy is improved by other alloy ingredients. Therefore, the silver alloy has a great development prospect.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a silver alloy with high hardness and anti-aging softening and a preparation method thereof. Background technique [0002] my country is a country that advocates the culture of gold and silver jewelry. With the opening of the gold and silver market in the mainland of my country, the reduction of import taxes on various jewelry, the continuous growth of the national economy, and the continuous improvement of the consumption power of the people, my country has become the third largest gold and silver market. It is a major jewelry consumer country, second only to India and the United States, among which K gold and anti-tarnish 925 silver alloy jewelry are the fastest growing market demand. According to the forecast of the world's authoritative experts, with the continuous deepening of exchanges and cooperation in terms of concepts, technologies, craftsmanship, and talents in the gol...

AI Technical Summary

Problems solved by technology

[0003] Stirling silver alloy is a silver-copper binary alloy composed of copper alloy elements, in which silver is 92.5wt%, copper is 7.5wt%, which is what we usually call 925 silver, although the silver alloy with copper is added It has a certain hardness, but it is still easy to vulcanize and change color. In order to prevent silver vulcanization and discoloration, precious metals such as gold, platinum, palladium, rhodium, osmium, iridium, rhodium, etc. are often added, but these precious metals are added only to prevent silver vulcanization and discoloration, resulting in The production cost is high, the gain outweighs the gain, and it is difficult to be accepted by the public

[0004] With the development of science and technology, research and development personnel have found that some alloy materials made of base metals and silver can slightly increase the hardness of silver alloys and improve their ability to resist vulcanization and discoloration, but the effect of the obtained materials is not very significant.