典型结构气辅塑件成型工艺参数的多目标优化  

Multi-Objective Optimization of Gas-Assisted Molding Process Parameters for Typical Structural Products

作　　者：任清海[1,2] 王子剑[1] 王艳波 耿铁[2] REN Qinghai;WANG Zjjian;WANG Yanbo;GENG Tie(Anyang Vocational and Technical College,Anyang,Henan 455000,China;School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou,Henan 450007,China)

机构地区：[1]安阳职业技术学院,机电工程学院,河南安阳455000 [2]河南工业大学,机电工程学院,河南郑州450007

出　　处：《塑料》2024年第6期178-184,共7页Plastics

基　　金：河南省高等学校重点科研项目(23B460021);国家自然科学基金(51375143);安阳科技攻关项目(2023C01NY036)。

摘　　要：熔体预注射量、熔体温度、模具温度、注气压力、延迟时间、注气时间等工艺参数直接影响了气辅成型质量。以具有典型气辅结构的塑件为研究对象,以气体穿透深度和最大气指幅度为衡量指标,采用正交试验和响应面法研究气辅成型工艺参数的影响程度及参数交互作用下的多目标精准优化。经正交试验极差分析和二次回归的响应面目标优化分析,得到最佳成型工艺为熔体预注射量为85%、注气时间为10 s、熔体温度为240℃、注气压力为3 MPa、延迟时间为4 s、模具温度为40℃。结果表明,最佳成型工艺下得到气辅塑件的气体穿透深度及气指指标较好,可用于气辅成型实际生产。The process parameters such as melt pre-injection volume,melt temperature,mold temperature,gas injection pressure,delay time,and gas injection time directly affect the quality of gas assisted molding.Taking products with typical gas-assisted structures as the research object,and using gas penetration length and maxmum-gas finger as measurement indicators,the orthogonal test and response surface method are used to study the multi-objective optimization of gas assisted molding process parameters.Through orthogonal experiment range analysis and quadratic regression analysis of response surface method,the optimal molding process was:melt pre-injection volume was 85%,gas injection time was 10 s,melt temperature was 240℃,gas injection pressure was 3 MPa,delay time was 4 s,and mold temperature was 40℃.The numerical simulation and experiments showed that the gas penetration length and gas finger under the optimized parameter group were excellent,which can be used in the actual production of gas-assisted molding.

关 键 词：气辅成型 工艺参数 正交试验 响应曲面法 多目标优化 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业] TP391.7[自动化与计算机技术—计算机应用技术]