Analysis and Optimization of the Polyurethane Reaction Injection Molding (RIM) Process for Manufacturing Instrument Panel

摘要：

　　In order to improve the quality of automobile instrument panel,this paper studies the reaction injection molding(RIM)process of semi-rigid polyurethane foam,and provides insights for optimizing the process parameters of instrument panel molding.Specifically,an experiment is firstly carried out to record the temperature changes of polyurethane adiabatic polymerization during the RIM process,then a theoretical model of adiabatic temperature rise is established based on the experimental results.Finally,the polymerization reaction kinetics of polyurethane are discussed combining with experimental data and theoretical analysis.The results show that the theoretical model can accurately describe the temperature changes and NCO conversion rates of polyurethane.Furthermore,the experimental findings and the proposed theoretical model can provide an important guidance for selecting appropriate raw material temperature,mold temperature,filling time and other process parameters.

关键词： Instrument Panel Polyurethane Process Parameters

作者: Qijuan WANG Wuxue DING Linfu WANG

作者单位: School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,P.R.China

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 306-310

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）