本文介绍了铸钢件边冒口气缩扎的产生部位及特征，并对其形成机理及防止措施进行了探讨。
Synopsis: This paper introduces the position and characteristics of the blow hole shrinkage in the side riser of cast steel castings and probes into the formation mechanism and its prevention.
对于平板类、厚大凹型类铝合金铸件，采用边侧冒口的浇注系统，能提高铸件的补缩效果，生产出合格铸件。
Feeding effect can be improved with qualified casting using side riser gating system for plate or heavy concave aluminum alloy casting.
比较五种冒口工艺方案，采用边暗冒口工艺生产球铁件转动环，提高了铸件质量和经济效益。
By comparison of five kinds of riser, the paper recomends the casting process design of side-blind riser which can assure the casting quality and reduce the casting cost.
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