同向双螺杆挤出熔融过程中物料运动的多样性  

The manifold of the flow patterns in melting section of co rotating twin screw extrusion

作　　者：郭奕崇[1] 朱复华[1] 阎宝瑞[1] 刘颖[1] 

机构地区：[1]北京化工大学塑料机械及塑料工程研究所

出　　处：《北京化工大学学报（自然科学版）》1998年第3期44-48,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：在可视化双螺杆挤出实验的基础上，阐述了熔融过程中物料运动的多样性问题。把物料运动的几种形式分为连续的和非连续的两大类。分析了影响运动形式的因素，指出螺槽充满度是影响运动形式最直接的原因，并说明了认识这一多样性问题的理论意义和实用意义。With a windowed twin screw extruder the authors conduct several visualization extrusion experiments. On the base of the experiments, this thesis expounds the manifold of the flow patterns in melting section of a co rotating twin screw extrusion. Flow patterns are further classified into two types, continuous and uncontinuous. The factors which effect the flow pattern are analyzed, and the filling ratio is considered as the most direct factor. The significance, both theoretical and practical, to understand the manifold is also presented.

关 键 词：双螺杆挤出 熔融过程 运动形式 物料运动 挤出 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]