摘要
Abstract
Based on computer aided engineering technology,the injection molding of charging port cover is simulated,and the axial deviation of charging hole is calculated and analyzed.Through the analysis of gate matching and flow resistance,the best gate position and glue feeding scheme are determined.According to the initial process analysis,the shaft deviation of the large hole is 2.315 5 mm,which does not meet the design requirements.The orthogonal test was designed with process parameters as independent variables,and the axial deviation under different combination of process parameters was simulated and calculated,and the optimization scheme of process parameters was explored.The results show that the influence of mold temperature and injection time is extremely significant,the influence of velocity-pressure switching volume is significant,and the influence of barrel temperature is not significant.The optimized process parameter is A1B3C1D1.Through process optimization,the shaft deviation of the large hole is reduced to 0.854 9 mm,and the shaft deviation of the small hole is reduced to 0.692 9 mm,meeting the design requirements.Simulation and actual model test also verify the feasibility of the optimized process in practice.关键词
计算机辅助工程/充电口盖/轴心偏差/正交试验Key words
Computer aided engineering/Charging port cover/Axial deviation/Orthogonal test分类
化学化工
