Dongguan Da Ling Shan Chang Sheng processing hardware store control starts with the purchase of alloy composition alloy ingots, alloy ingots must be based on ultra-high-purity zinc die-cast zinc alloy base PRD, with ultra-high-purity aluminum, magnesium, copper alloy formulated into ingots, supplier strict ingredient standards. Quality zinc alloy material is the production of superior quality cast zinc alloy bearings guarantee. Procuring alloy ingots to ensure that there is a clean, dry stacking area to avoid prolonged exposure to moisture and white rust, dirt contaminated produce zinc or plant residue increased European regulations alloy pin, also increase the metal loss. Clean factory environment effective control of the alloy composition is useful effect. Dongguan Da Ling Shan Chang Sheng processing hardware store waterlines, cold shut lines: Which liquid metal zinc alloy die-casting is strong, first into the metal wall premature solidification of liquid contact, after entering the liquid metal in the filling process and has not solidified metal layer fused into one, the formation of moiré in the 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 of zinc alloy, 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, when the plating solution will penetrate into cracks, converted to steam during baking, pressure from the top plating layer blistering. Guangdong zinc alloy products, 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.