Sand fill and compaction are essential factors of Expendable Pattern Casting(EPC).
砂 的填充及紧实是实型造型工艺技术中的关键因素。
A new expendable pattern casting (EPC) process, with vacuum and low pressure, was introduced.
介绍了一种新的铸造技术——真空低压消失模铸造的工作原理。
In this paper the gas gap in the expendable pattern casting process was studied and the relation between the gas gap and collapse defect is discussed.
对消失模铸造铸铁件流动前沿的气隙进行了研究，探讨了气隙与坍塌缺陷的相互关系。
Abstract: in this paper the gas gap in the expendable pattern casting process was studied and the relation between the gas gap and collapse defect is discussed.
文摘：对消失模铸造铸铁件流动前沿的气隙进行了研究，探讨了气隙与坍塌缺陷的相互关系。
The research status on the mold filling of expendable pattern casting process is reviewed from the aspects of mold filling characteristics, heat and mass transfer.
从充型特性以及传热和传质两个方面回顾了消失模铸造充型过程的研究进展。
Full-mold casting is a technique similar to investment casting, 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。
However, the pattern cost can be high due to the expendable nature of the pattern.
然而由于型模的消耗特性，型模成本可能较高。
However, the pattern cost can be high due to the expendable nature of the pattern.
然而由于型模的消耗特性，型模成本可能较高。
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