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.

youdao

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.

youdao