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

在点口形式的模具道模具中也用到另一种形式主道。

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注射模注系统设计中的排布、非平衡排布时欲达到同时充满口尺寸的计算及调试。

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

主道拉料杆头部的凹槽形成了一个有效的底切，可以用来拉出主道者是下进料设计中的二级主道。