中国塑料2025，Vol.39Issue(5)：50-56,7.DOI:10.19491/j.issn.1001-9278.2025.05.008
复合材料热压注塑一体成型平板制品翘曲变形影响因素分析
Analysis of factors affecting warping and deformation of composite-integrated over-molding flat products
摘要
Abstract
Integrated over-molding is based on a combination of hot press and injection molding processes.Owing to the different shrinkage rates of materials,the molded products formed a"bowl-shaped"structure with a concave center and warped sides after cooling and shaping.To investigate the preheating time of prepregs,mold temperature,melt tempera-ture,injection speed,injection pressure and holding pressure,an orthogonal experiment was designed to analyze the influ-ence of process parameters on the warping and deformation of the molded products.The results indicated that the preheat-ing time had a significant effect on the warpage deformation,whereas the injection speed showed a smaller effect.Through the signal-to-noise ratio analysis,the influence of each factor on the warpage of composite products was followed by by an order of preheating time>holding pressure>injection pressure>melt temperature>mold temperature>injec-tion speed.The optimal process parameters were obtained for manufacturing composite products with small warpage.关键词
复合材料/翘曲变形/工艺参数/一体成型/信噪比Key words
composite material/warp deformation/process parameter/integrated over-molding/signal-to-noise ratio分类
化学化工引用本文复制引用
应祺辉,贾志欣,高利珍,刘立君,李继强,吴希然,陈博杰..复合材料热压注塑一体成型平板制品翘曲变形影响因素分析[J].中国塑料,2025,39(5):50-56,7.基金项目
宁波市重点研发计划暨"揭榜挂帅"项目(2022Z044) （2022Z044）
浙江省市场监督管理局科技计划项目(ZC2023061) （ZC2023061）
