Study of the characteristic of new type screw element in Co-rotating twin screw extruders

摘要

In order to meet the development towards higher speed and efficiency of co-rotating twin screw extruders, we designed and manufactured a new type screw element of co-rotating twin screw extruder; it has linked together left and right hand flights and large pitch, i.e. similar to inner mixer rotor. After carrying out flow field simulation of this element, we carried out a lot experiments to verify the calculating results. The calculating and experimental results indicate that this new screw element is possessed of better plasticating and mixing ability, lower melt temperature and lower energy consumption than the conventional screw elements and FAMME.