Dongguan Da Ling Shan Chang Sheng processing hardware store aging Zinc Alloy mainly containing Al and Cu solid solution of zinc-rich and Al-rich solid solution containing Zn in the composition, their solubility decreases with the decrease in temperature. However, due to the extremely rapid solidification speed die casting zinc alloy handle, so when the metal shell HDMI room temperature, the solubility of the solid solution is substantially saturated. After a certain time, this phenomenon will gradually lift the supersaturation zinc alloy jewelry, leaving the shape and size of the casting slightly to change. Dongguan Da Ling Shan Chang Sheng processing hardware store magnesium role: ① ② reduce intergranular corrosion refined alloy, thereby increasing the strength of the negative ③ alloy improved wear resistance of the alloy: ① magnesium content> 0.08% produces heat brittle , toughness decreases, decreased mobility. ② easily oxidized alloy loss at a molten state. Magnesium alloy fluidity of zinc alloy pin EU regulations, 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.