摘要
Abstract
The study employed UG 12.0 software to construct a 3D geometric model of a fuel tank cover and selected Polyamide-imide(PAI)as the material for the fuel tank cover.Design Expert 10.0 software was used to design 30 sets of experiments to systematically investigate the effects of melt temperature,ejection temperature,cooling time,and injection pressure on warpage.A response surface model was established between warpage and process parameters.Analysis of variance showed that the model had an F value of 2.73,a P value of 0.0315,and an R2 of 0.918 4,indicating that the model was statistically significant and had a good fit.The optimal process parameter combination obtained through optimization analysis was a melt temperature of 358℃,an ejection temperature of 161℃,a cooling time of 51 s,and an injection pressure of 66 MPa.Under these conditions,the warpage of the part was reduced from the initial value of 1.725 0 mm to 0.512 8 mm,a decrease of 70.27%.The error between the model's predicted value and the actual measured value was only 1.05%,which verified the high predictive capability of the model and the reliability of the optimization analysis.关键词
油箱保护罩/聚酰胺-酰亚胺/响应面法/Moldflow/翘曲变形量Key words
Fuel tank cover/Polyamide-imide/Response surface method/Moldflow/Warp deflection分类
化学工程
