The study demonstrated that the principle of rotatinginjection molding method is successful and it can be well used in the production.
通过研究证明旋转注射成型方法的原理是成功的，同时也证明旋转注射成型方法能够很好的应用于生产实践。
2
To make sure that a plastic part with helical gear and spur gear can be demoulded successfully, an injection mould is designed with double parting faces, point gate feeding and rotating demould.
The practice shows the lifting and rotating devices for lance not only meet the technological requirements but also increase the injection quality, and can be used for related equipment.