气体辅助注塑，是把高压氮气经主辅控制器（分段压力控制系统）直接注射入模腔内正在塑化的塑料里，使塑料件内部膨胀而造成中空，但仍然保持产品和外形完整无缺。
还考察了气体辅助注塑过程熔体预注射量、气体注射压力对充模过程的影响。
And also, the influences of pre-injected resin volume and gas pressure on gas-assisted...
图7展示了气体辅助注塑成型中设计的大加强肋几何结构和坚固度增加的关系。
Figure 7 shows how the stiffness increases with larger rib geometries designed for gas-assist molding.
类似于气体辅助注塑，但用水代替气体来成型中空结构件的技术称为水辅注塑技术。
Water injection technique (WIT) is an injection molding technology, in that the hollow cavities are generated by injection of water instead of gas into the plastic melt.
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