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The process of high-pressure zinc alloy die casting is carried out in an automatic machine that is designed to withstand high pressure levels. The molten metal is forced into a two-piece steel die that contains one or more cavities, each of which is an exact inverse replica of the part or parts being manufactured. Pressure zinc die castings have generally better mechanical properties than other casting processes, owing to the rapid cooling and solidification that occurs when molten zinc comes into contact with the relatively cool ste... more