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piston die-casting

metallurgy
Also known as: gooseneck die-casting

Quick Summary

The piston, or gooseneck, process is a method of die-casting where molten metal is injected under pressure into a die. In this technique, a plunger and cylinder are submerged in the molten metal. When the plunger retracts, metal enters the cylinder through a hole. The plunger's advance then forces the metal into the die cavity, where it quickly hardens. A die core is positioned within the cavity to shape the interior of the casting. Once the metal solidifies, the die opens, and the finished casting is ejected. This process allows for high precision and is used for various products, from small machine parts to larger components. Die-casting is a technique within metallurgy used to form metal objects by injecting molten metal into molds, often referred to as dies. Aluminum alloys are commonly used in die-casting, with specific alloys chosen based on desired properties like strength and corrosion resistance.123

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