啮合异向双螺杆挤出过程熔体输送段常规螺纹元件3D流场分析  

3D Flow Field Analysis of Common Flight Elements in Counter-Rotating Twin Screw Extrusion

作　　者：施丰[1] 马秀清[1] 耿孝正[1] 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《中国塑料》2002年第5期80-85,共6页China Plastics

基　　金：国家自然科学基金资助重点项目 (项目批准号597330 70 )

摘　　要：作者对啮合异向双螺杆挤出过程常规螺纹元件在充满熔体情况下的三维、等温、非牛顿流场进行FEM计算模拟的研究结果。所建物理模型包括螺槽区、啮合区和四个间隙 ;边界条件为真实的速度和压力边界条件 ;借助AN SYS有限元求解器进行流场计算 ,得到计算域的速度场、压力场和粘度场 ;利用以上流场计算结果 。Isothermal flow field analysis of non Newtonian fluid in common flight elements of counter rotating twin screw extrusion is concerned. The physical modeling includes channel region, nip region and all of the clearance. The boundary condition is the real velocity and pressure condition. 3D flow simulations are performed. Based on the computed pressure and velocity profile, the pumping characteristic and mixing capabilities of the flight elements are analyzed.

关 键 词：啮合异向双螺杆挤出过程 熔体输送段 螺纺元件 3D流场 聚合物 挤出机 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]