shrink bob

用法例句

The qualified rate of the casting has been improved largely by using the technics measures such as the technology sub- sidy and the complicated blind riser canceling,the shaping insert enlarging,the plane chill placing and gating system reasonably designing etc.

通过工艺生产摸索对原工艺进行改进,取消工艺补贴和复杂的暗冒口,增大内腔成形冷铁,设置平面冷铁以及合理地进行内浇口设置等工艺措施,使铸件成品率有了大幅度提高。