Regression models of influence factors in pin barrel extruder;

With the software FLUENT,a CFD(Computational Fluid Dynamics) software,the threedimensional flow field of the sizing which is treated as Non-Newtonian fluid and locates in the melt part and measure part of screw of pin barrel extruder,is simulated.

Mathematical expressions of velocities,shear stresses for Newtonian laminar field near the pins in pin barrel extruder and machine's power are presented.

Research of heat exchange model for the plasticating zone in pin barrel extruder;

Numerical simulation of flow fields in pin barrel extruder;

Analysis of flow field near pins in pin barrel extruder and calculation of pins’ energy consumption;

On the basis of a 3D flow numerical simulation by Fluent for melt and gauge stage compound of cold-feed pin barrel extruder,the effects of screw’s rotating speed,upward pressure,pin’s count,array pitch of pins and flight channel depth on flow mass and torsion were investigated.