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 with temperature increases of zinc alloy medal, every liquid zinc furnace temperature changes will cause excessive iron saturation (when the temperature drops), or unsaturated (when the temperature rises). When the iron is too saturated zinc alloy metal shell HDMI, in the over-saturated iron will react 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 common result of a change in temperature of the aluminum element is the end result of the consumption of zinc alloy, formed more scum. Dongguan Da Ling Shan Chang Sheng processing hardware store zinc alloy die-casting mold design and development, the use of high-pressure die-casting is a hydraulic force the molten metal into the shape of the complex within a precision metal mold casting method, is a sophisticated casting method. Zinc alloy die-casting industry in the country concerned mainly gathered in the Pearl River Delta, Wenzhou area HDMI metal shell, but with the entire maturity of the technology in terms of the level of post-processing technology, the PRD is stronger than Wenzhou. Analysis of the industry, to do high-quality zinc alloy die-casting factory in Dongguan preferred products, die-casting factory in Dongguan and small plants with incomplete statistics, as many as one thousand! Die-casting industry in the country ranked first! Zinc alloy metal shell HDMI | Zinc | Chang Sheng Hardware provided by Dongguan Da Ling Shan Chang Sheng processing hardware store. Dongguan Da Ling Shan Chang Sheng processing hardware store (shop1379091614724.1688.com) strong, credible, in Dongguan, Guangdong and other hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chang Sheng Hardware and you hand into the brilliant, for a better future!