sprue

A modified form of sprue gate is also used on underfeed moulds and runnerless moulds.

在点浇口式模具或无模具中也用到另式主。

In this paper, the arrangement of cavities, the dimension calculation of sprues and gates and the method of mold-testing for a special hooks multi-cavitis plastic injection mold are introduced.

本文以塑料扣码为例介绍了多腔注射模浇注系统设计中型腔排布、非平衡排布时欲达到同时充满型腔浇口尺寸计算及调试。

The grooved head of the sprue puller creates an effective undercut which is used to pull the sprue, or secondary sprues in underfeed designs.

主料杆头部凹槽成了个有效底切，可以用来出主或者是下进料设计中二级主。