The screw configuration is an important factor directly affecting the plasticizing quality of rubber extrusion.Through ANSYS Polyflow software,the non-isothermal transient flow simulations were conducted on five different field synergy torsion screw configurations with varying arrangements of twisted elements.A comparison was made with a conventional double-threaded screw,and the analysis focused on the impact of different screw configurations on extrusion performance factors such as rubber material mixing,heat transfer,and plasticization uniformity.The results indicate that all five field synergy torsion screw configurations outperform the conventional threaded screw in terms of overall performance.Among them,screw F exhibits the best mixing performance,while screw B shows the best heat transfer performance.The helical flow caused by the twisted elements in the field synergy torsion screw can enhance the synergistic interaction between the velocity field,velocity gradient field,and temperature gradient field of rubber material,which increases stretching flow and deformation in the flow field,enhances radial heat and mass transfer,thereby improving the plasticizing quality of rubber material.This process aligns with the principle of field synergy.
关键词
场协同扭转螺杆/螺杆构型/强化传热传质/场协同原理
Key words
field synergy torsion screw/screw configuration/enhanced heat and mass transfer/field synergy principle
维普
万方数据