基于正交试验法的塑料AMT传感器注塑成型工艺优化

Optimization of Injection Molding Process of Plastic AMT Sensor Based on Orthogonal Test Method

针对某35%玻纤增强PA66材料的AMT传感器,基于仿真技术模拟了其注塑成型过程。针对其四个焊接定位柱平面度超标的问题,设计正交试验探究优化方案。结果表明:冷却时间、模温及保压时间对四个焊接定位柱平面度的影响程度为极显著,保压压力和料温对四个焊接定位柱平面度的影响程度为显著。最优工艺参数组合为A2B2C1D1E1F1。基于优化工艺分析,四个焊接定位柱平面度为0.042 1 mm,相比初始工艺降低0.030 8 mm,达到设计要求,优化率为42.2%,表明此注塑优化工艺具有可行性,实际注塑成型试模验证合格。

Aiming at a AMT sensor of 35%glass fiber reinforced PA66 material,the injection molding process was simulated based on simulation technology.Aiming at the problem that the flatness of four welding positioning columns exceeds the standard,an orthogonal test was designed to explore the optimization scheme.The results show that the influence of cooling time,mold temperature and holding time on the flatness of the four welding positioning columns is extremely significant,and the influence of holding pressure and material temperature on the flatness of the four welding positioning columns is significant.The optimal process parameters combination is A2B2C1D1E1F1.Based on the analysis of the optimized process,the flatness of the four welding positioning columns is 0.0421 mm,which is 0.0308 mm lower than the initial process,and meets the design requirements.The optimization rate is 42.2%,which shows that the injection molding optimization process is feasible,and the actual injection molding test is qualified.