中文摘要：

对气体辅助注射成型过程在不同工艺参数设定下的气体穿透行为进行研究,通过实验对延迟时间、熔体的注射量,以及延迟时间与注射压力间的交互作用对气体穿透长度的影响进行了讨论,并对“无进气点”进行了讨论分析。

英文摘要：

The gas penetration behavior in gas-assisted injection molding （GAIM） for different process parameters was studied. The effect of several important parameters, such as delay time, melt shot size and interaction of delay time and shot pressure on gas penetration were analyzed. The time point for ＂no gas entry＂ was also discussed.