气辅成型工艺参数正交精准设计优化  

Orthogonal precision design optimization of gas⁃assisted molding process parameters

作　　者：任清海[1,2] 孙祖东 耿铁[2] REN Qinghai;SUN Zudong;GENG Tie(Anyang Vocational and Technical College,Anyang 455000,China;Henan University of Technology,Zhengzhou 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,郑州450007

出　　处：《中国塑料》2024年第7期62-67,共6页China 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)。

摘　　要：“双碳”目标下,气辅成型技术为塑料成型实现降低碳排放提供了有效途径。为精准规划气辅成型参数,提升气辅成型质量和效率,有效降低碳排放,采用三维数值模拟和成型实验,研究参数交互作用下气辅成型工艺正交优化。结果表明,参数交互作用对气体穿透长度影响小,而对气指缺陷的影响显著。极差分析的基础上,获得了优选参数组:熔体温度240℃,注气压力3 MPa,延迟时间4 s,模具温度40℃。经数值模拟和成型实验验证,优选参数组下得到气辅塑件的气体穿透长度及气指指标优良,可用于气辅成型实际生产。Based on the dual⁃carbon goal,the gas⁃assisted molding technology can provide an effective way for plastic molding to reduce carbon emissions.To design the gas⁃assisted molding parameters accurately,improve the gas⁃assisted molding quality and efficiency,and reduce carbon emissions effectively,the orthogonal optimization with a parameter interaction was studied through 3D numerical simulation and experiments.The results indicated that the parameter interaction had little effect on the gas penetration length but a significant effect on the gas finger defect.Based on the range analysis,the optimized parameter group was obtained at a polymer temperature of 240℃,a gas injection pressure of 3 MPa,a delay time of 4 s,and a mold temperature of 40℃.The numerical simulation and experiments indicated that the gas penetration length and gas finger under the optimized parameter group were excellent,which could be used in the actual gas⁃assisted molding production.

关 键 词：双碳 气辅成型 正交试验 精准设计 优化 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]