通过研究叶片挤出机中叶片塑化输运单元的聚合物熔融过程,建立叶片挤出机中压力诱导熔体迁移熔融的物理模型和数学模型,得到了固体输送压力和压力诱导熔体迁移熔融量与各个参数的关系。固体压实过程分为预压阶段和塑压阶段,在预压阶段固体输送压力上升缓慢,而在塑压阶段压力急剧上升。压力诱导熔体迁移熔融量与转速呈反比,与并偏心定子内径D的二分之一次方、压力的四分之一次方和偏心定子的温度Ts的四分之三次方呈正比。研究表明,理论模型预测与实验具有较好的一致性。 The physical and mathematical models of pressure-induced melt migration and melting in the blade extruder were established by studying the polymer melt process of the blade plasticization and transport unit in the blade extruder. The solid-liquid transfer pressure and pressure-induced melt migration and melting The relationship between quantity and each parameter. Solid compaction process is divided into pre-pressure stage and plastic pressure stage, during the pre-pressure stage solid transport pressure rise slowly, and in the plastic pressure stage pressure rises sharply. Pressure-induced melt migration The melt volume is inversely proportional to the rotational speed and eccentric to the stator’s inner diameter D by a power of one-fourth, and the pressure is proportional to the quadratic power of the eccentric stator temperature Ts. The research shows that theoretical model prediction and experiment have good consistency.