一次成型是配一台液压机及一套成型模具，切角、拉伸一次完成。

One is equipped with a hydraulic molding machine and a mold, cut, stretch again to complete.

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介绍了柱塞式液压泵塑料壳体注塑成型模具的结构设计和工作原理，该模具具有简单合理、动作可靠等特点。

Structural design and operational principle of molds for plastics piston pump housings are presented. The mold presents itself as a simple and rational piece of design work.

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