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Silver jewelry has always been loved by the majority of Amy, it is affordable, looks clean and no time to wear elegant elegance to highlight the temperament, but how to identify the quality of silver you know?

Silver jewelry classification Silver jewelry classification, according to the composition of the classification is divided into full silver jewelry and silver alloy jewelry:

1. Full silver jewelry. Smooth surface, silver-white, good scalability, looks elegant, generous.

2. Silver alloy jewelry. Silver alloy jewelry surface bright, still silver-white, hardness and ductility moderate, easy processing up the characteristics, and looks exquisite, delicate, decorative and strong. Jewelry with silver alloy is mainly silver-copper alloy, usually silver content of 92.5%, there are also lower silver jewelry, especially with some national style of jewelry, very beautiful and delicate. 900 alloy known as the currency silver, jewelry with 800 or more alloy.

The advantages of silver-copper alloy than silver hard; heat treatment can improve hardness, lower melting point, castability improved, but the anti-discoloration capacity is not improved, easy to produce sulfide to silverware discoloration. In order to solve this problem, people have done a lot of research, found that silver-palladium alloy cost the lowest. In addition, in recent years, many jewelry manufacturers also electroplating technology into the silver jewelry processing, in the jewelry surface rhodium plating and other metals to improve the wear and corrosion resistance of jewelry.

The main imitation of silver jewelry:

1. Silver-plated jewelry Silver-plated jewelry carcass is a copper-based metal alloy material, often by adding zinc and nickel and other metals, the surface silver to improve the gloss, the advantages of the material corrosion resistance than copper Good and the nature of the process is similar to K gold.

   2 package silver silver is a mechanical or other means of silver wrapped metal products on the surface.

   3. "Sandwich" silver jewelry A new type of imitation of silver jewelry, the imitation of the surface layer of silver, and internal elements of harmful "cadmium" sandwich, cadmium is the biggest characteristic of the existence of a great security risk, it Will cause permanent damage to the human nervous system we must pay special attention to Oh!

Silver jewelry inspection:

   1. Identification of jewelry stamp should include the manufacturer code, precious metal material name and content.

   2. View quality is mainly the overall shape of jewelry, processing quality and other specific process quality

   3. Jewelry weight Silver jewelry is sometimes calculated by weight and processing fees to the price, the weight of jewelry is one of the important indicators, in accordance with the standard provisions of the weight of jewelry units of measurement grams, silver jewelry, each of the tolerance is -0.05 ~ 0.04 g.

   4. Silver content Jewelry in the silver content is an important indicator of its quality. There are many methods of testing silver content, can be divided into chemical analysis methods and instrumental analysis methods. According to the detection process of jewelry is damaged, can be divided into non-destructive testing and damage detection method, the quality of jewelry supervision departments in the daily inspection generally nondestructive testing method, density method combined with X-ray fluorescence spectrometry, And other large-scale instrument analysis.

Physical properties of silver Luster:

   Silver white Density: 10.5g / cm3 Hardness: Mohs hardness 2.7 Reflectivity: reflectivity can reach 91%

note:

   Silver content Jewelry in the silver content is an important indicator of its quality. There are many methods of testing silver content, can be divided into chemical analysis methods and instrumental analysis methods. According to the detection process of jewelry is damaged, can be divided into non-destructive testing and damage detection method, the quality of jewelry supervision departments in the daily inspection generally nondestructive testing method, density method combined with X-ray fluorescence spectrometry, And other large-scale instrument analysis.

  Shenzhen Xin Chang Technology Co., Ltd. mainly engaged in all kinds of gifts: all kinds of copper, iron, steel, aluminum, zinc alloy and other materials of the Shenzhen badge production (badge), Shenzhen medal production, key ring, cap badge, Jewelry, promotional items; souvenirs; gift gifts; jewelry processing in Shenzhen: bracelet Jiaolian, pendants; strap (mobile phone strap), the number of workers, the production of souvenirs, souvenirs, The main Taiwan buckle, bottle opener, the Taiwan mascot model sets Baishi, buttons, clothing accessories, such as luggage signs accessories. Can also be based on a model customer model production to ensure high quality.