【作者】 梁策； 安健； 李义；

【Author】 LIANG Ce,AN Jian,LI Yi (Key Laboratory of Automobile Materials,Ministry of Education,Jilin University,Changchun 130025,China)

【机构】 吉林大学汽车材料教育部重点实验室；

【摘要】 采用数值模拟技术和试验方法研究了气辅注塑成型中气体穿透机理。研究了熔体温度与气体注射延迟时间、熔体温度与气体注射压力、气体注射压力与气体注射延迟时间三对工艺参数的交互作用对气辅成型过程中气体穿透的影响关系。结果表明:熔体温度与气体注射延迟时间的交互作用对气体穿透影响较为显著,其它两对工艺参数对气体穿透影响较小。更多还原

【Abstract】 A theoretical study has been carried out with the method of numerical simulation on the gas penetration behavior during the gas-assisted injection molding(GAIM).The influenced interactions of different processing parameters were studied,such as melt temperature and gas delay time、melt temperature and gas injection pressure、gas injection pressure and gas delay time.The results show that:the interaction of melt temperature and gas delay time is more serious to gas penetration behavior.Finally,the optimum processing parameters are: gas delay time 0s,melt temperature 217℃,gas injection pressure 25MPa,shot size 78%.更多还原