What are the reasons and process classification of silver jewelry?

What are the reasons and process classification of silver jewelry? Silver jewelry is a variety of decorations made of silver. Silver is one of the precious metals. Silver is white. Silver jewelry adopts various processing techniques. There are many types of silver jewelry processed, which are basically divided into earrings, neck decorations, and hand decorations. , Foot ornaments in several categories. 1. Introduction to Silver Jewelry A. Silver is one of the precious metals, the symbol is Ag, and the English is silver. Silver is silver-white, relative density 10.49, melting point (961°C), insoluble in alkali and most organic acids, easily soluble in nitric acid and hot sulfuric acid, and turns into brown Ag2S after being vulcanized with dioxide in the air. 925 silver is 92.5% silver added with 7.5% copper and other alloys, which improves the hardness and luster of silver. B. The fineness of silver, expressed in thousandths. Pure silver: the silver content is not less than 990‰, and the imprint is pure silver or S990, silver 990. C. The content of silver in the earth's crust is very small, accounting for only 0.07ppm. There is elemental natural silver in nature, but it is mainly in the form of a compound. D. Silver mines mainly include silver ore, followed by angle ore, and there are also natural silver. The silver ore, salt and water are heated together, and then combined with mercury to form a silver amalgam, and the mercury is evaporated to obtain silver. Or it is made by leaching silver ore with alkali cyanide and then adding lead or zinc to precipitate silver. 925 silver jewelry: the silver content is not less than 925‰, and the imprint is S925 or silver 925. Difference: 925 silver (sterling silver) is the international standard for silver jewellery. Because of its increased hardness, it is mainly used to make fashionable silver jewellery with more complicated craftsmanship. Pure silver is relatively soft and is not suitable for inlaid gemstones or fine styles. It is generally used for production. Traditional children's locks, children's bracelets and elderly bracelets, etc. 2. According to the process classification, it is basically divided into three categories: bright silver, primary color silver (manual silver), and Thai silver. Among them, it is divided into the inlaid type with gems and the plain silver type without inlaid. Bright silver: by electroplating rhodium or other electroplating materials on the surface of the silver ornaments, the silver has the same luster as platinum and isolates the silver from the air. As long as the plating layer is not damaged, the silver ornaments can be kept from oxidizing for a longer period of time. This is the mainstream silver ornament process. . Original silver: The silver itself does not undergo any processing, and is produced by semi-manual or all-manual craftsmanship, giving silver ornaments a simple and natural style. Thai Silver: Retro-style silver jewellery. Through artificial vulcanization, the silver jewellery is oxidized and worn out. This kind of silver jewellery style is more individual and highlights the silver jewellery's own style. The above is the basic knowledge and process classification of silver jewelry shared by the jewelry factory. I believe you will have some insights after reading it. I hope it will be helpful to you. If you want to learn more about jewelry, follow us and the author will continue to be You update.