Former Dongguan Da Ling Shan Chang Sheng processing hardware store a variety of decorative aspects of zinc alloy, such as furniture fittings, architectural decoration, bathroom accessories, lighting parts, toys, tie clips, belt buckle, metal buckle and so widely used in zinc Zinc alloy die casting alloy pins British regulations, which also require the casting surface quality is higher, and the need to have a good surface processing performance. The most common defects of zinc alloy die casting surface blistering. Defect characterization: casting surface protrusions vesicles. Main features: die-cast zinc alloy found out on EU regulation pins, polished or processed revealed, there will appear after injection or plating. Dongguan Da Ling Shan Chang Sheng processing hardware store impurity elements: iron ① iron and aluminum react to form inter-metallic compounds Al5Fe2, causing loss of aluminum elements and the formation of dross. ② the formation of hard particles in the die casting, machining and polishing after impact. ③ increase the brittleness of the alloy. The solubility of iron in molten zinc is increased with increasing temperature, the furnace temperature of molten zinc every change will lead to excessive iron saturation (when the temperature drops), or unsaturated (when temperature rises). HDMI when supersaturated iron metal shell factory, in the over-saturation of the iron reaction will occur with the aluminum alloy, the result is caused by increase in the amount of dross. When the iron is not saturated, the alloy of zinc pot and gooseneck material corrosion will be enhanced, in order to return to saturation. Two kinds of temperature change of a common result is the final result of the consumption of aluminum element, formation of additional dross. HDMI metal shell manufacturers, Chang Sheng Hardware (certified), zinc alloy provided by Dongguan Da Ling Shan Chang Sheng processing hardware store. Dongguan Da Ling Shan Chang Sheng processing hardware store (shop1379091614724.1688.com) is Dongguan, hardware accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chang Sheng Hardware in leadership with the staff warmly welcome all inquiries negotiations to create Chang Sheng Hardware a better future.