Vacuum casting and lost foam casting is also called negative pressure casting. the biggest difference between Vacuum casting and traditional sand casting is that Vacuum casting don’t need binder. Vacuum casting uses plastic film to seal up molding flask ,then , drawing-off air from mold by vacuum pumping system ,...

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Vacuum casting also called vacuum moulding or vacuum sealed molding, which is invented by the Japanese as a new molding process in seventy’s of the last century .It is the third generation of modeling process without binder ,namely physical modeling method.vacuum casting has got rapid speed of development in recent years...

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