Based on the principle of smooth filling casting system without gas gap, the casting system of bolster is designed.

基于无气隙平稳充型浇注系统的设计原理，设计了摇枕铸件的浇注系统并进行了充型和凝固过程的计算机模拟。

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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。

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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。

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