In this paper, on the base of analyzing the basic kinetics equations of PURIM, the main factors influencing the selection of its mold-filling process are analyzed and the diagram of mold-filling area for flowing stage of PU-RIM has been obtained.

• 本文在分析聚氨酯反应注射成型反应动力学基本方程的基础上，对影响选择充模过程的主要因素进行了分析，并得出聚氨酯反应注射成型流动阶段充模区域图。