Lost foam casting making process

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Lost foam casting is to combine paraffin wax or foam models with size similar to the casting size and shape into model clusters. After brushing and drying, they are buried in dry quartz sand for vibration modeling, and then poured under negative pressure to gasify the mould. The liquid metal occupies the position of the mould and forms a new casting method after solidification and cooling.

machine display
lost foam casting machine
Pre-expander Model No.450
Chamber sizeΦ500*700mm
Compressed AirinletDn20
Steam capacity50kg/h
Total power4.5kw

EPS raw materials are going to be pre-expanded by EPS pre-expander machine,the matured EPS balls will be transported to EPS molding machine for package or blocks thru the piping system.The molded mould will be dried in the drying room to get rid of the water.Then,the dried mould will be teamed up by glue and cast.

lost foam casting

At last,the mould will be coated and dried twice.The finished mould will be made after it is dried completely.

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