Full-mold casting is a technique similar to investmentcasting, but instead of wax as the expendable material, polystyrene foam is used as the pattern.
实型铸造是与熔模铸造类似的技术，但它用做型模的消耗材料是聚苯乙烯泡沫而不是石蜡。
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One of the key-technologies of guiding device investmentcasting is getting internal ring, external ring and blade unit by splitting integral guiding device part for wax-mold design.
Key influential factor of causing the dimensional instability of wax pattern and casting for investmentcasting is the instability of component of reclaimed wax.