啮合同向双螺杆挤出机单/双头螺纹元件熔体输送与混合特性的研究  

Researches on the Melt Transportation and the Mixing Characteristics of the Single/Double-Headed Screw Elements in Co-Rotating Twin Screw Extruders

作　　者：韩亚南[1] 罗兵[1] 江波[1] 赵锋[1] 何明[1] 王文飞[1] 

机构地区：[1]北京化工大学

出　　处：《化工机械》2009年第5期411-417,共7页Chemical Engineering & Machinery

摘　　要：采用数值模拟和实验的方法,对啮合同向双螺杆挤出机中单/双头螺纹元件的熔体输送与混合特性进行对比。结果表明,在计量输送段放置一段单头螺纹元件时,回流量小,正向输送能力强;螺杆所受扭矩小,消耗能量少;挤出物料的耐冲击性能较高。The melt transportation and mixing characteristics of the single/double-headed screw elements in co-rotating twin screw extruders were compared using numerical simulations and experiments. The result shows that when a single-headed element was placed at the measurement transportation, the backflow section was little, and the forward delivery capacity was strong, the torque bore by the screw was small, power consumption was little, and the impact resistance of extruded material was high.

关 键 词：双螺杆挤出机 单头螺纹元件 双头螺纹元件 混合特性 熔体输送 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]