Casting is a manufacturing process in which molten metal is poured or injected and allowed to solidify in a suitably shaped moldcavity.
铸造是一种将熔化的金属倒入或注入合适的铸模腔并且在其中固化的制造工艺。
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The purpose of this is to feed the molten metal to the moldcavity as the molten metal solidifies and shrinks, and thereby prevents voids in the main casting.
其目的是当熔化金属凝固和收缩时往型腔里补充熔化金属，从而防止在主铸件中产生孔隙。
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Gas assisted plastics injection molding process includes injection of polymer melt into moldcavity and then injection of gas-compressed into the polymer melt.