Dongguan Da Ling Shan Chang Sheng processing hardware store waterlines, cold shut lines: the liquid metal in the filling process, the first into the metal wall premature solidification of liquid contact type zinc alloy pins EU regulations, can not enter the liquid metal has solidified fused into one metal layer to form a moiré zinc alloy jewelry butt at the casting surface, appear strip defects. Watermark is generally shallow in the casting surface; and cold shut lines that could spill into the interior of the casting. Hot crack: a uneven thickness when casting solidification process produces stress; b premature ejection, metal strength is not enough; the top of the uneven force when c d high mold temperature so coarse grains; e harmful impurities. These factors are likely to crack. When there Watermark casting, cold shut lines, hot cracking zinc alloy plating solution will penetrate into cracks, when baked into a vapor pressure of the formation of foam from the top plating. Technology Dongguan Da Ling Shan Chang Sheng processing hardware store ternary alloy multi-alloy complex than many; ternary alloy is produced by a melting, also using secondary smelting process. Because secondary smelting cost than a melting high, many companies are willing to adopt a smelting process to produce ternary alloy. Multicomponent alloys is based on ternary alloys to pay more of the one or more alloying ingredients HDMI, smelting technology would naturally many complex, the general level of smelting technology want to pay more casual one or more elements, in fact, are very difficult Join the outset. With the birth of the world of nanotechnology, nanotechnology derived from micro-nanotechnology applications for basic materials industry has brought new development ideas, completely changed people's thinking. Zinc alloy die _ 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.