Expendable polystyrene pattern(EPC) was used for mold s hell making in EPC by means of shell making technology similar to wax pat tern ininvestment casting to reduce carburization and hydrogen pick up in EPC so a result of polystyrene vaporization during pouring. Polystyrene pattern was lost with heating up to 600 ℃ for 60 min holding
and shell was baked at 800 ℃ for 1 h.
关键词
精密铸造聚苯乙烯泡沫塑料水玻璃消失模
Keywords
Lost Foam PatternInvestment CastingPolystyreneSodiu m Silicate