New Geometrical Design for Co-rotating Twin-screw Element

As the development of twin screw extruder to high speed and high efficiency, common twin screw element is hard to meet this demand. Therefore, it is very important to design new twin screw element. High shear rate and high elongation rate are the key factors to mixing, and latter is more effective. Common twin screw element does not possess this effect. The elongation rate produced by twin screw element depends on its design, so new geometry of twin screw element should be designed for the purpose of high elongation rate.