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

在点浇口形式的具或无具中也用到另一种形式主。

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.

本文塑料扣码为例介绍了多腔射浇设计中型腔的排布、非平衡排布时欲达到同时充满型腔浇口尺寸的计算及调试。