Resin Velocity and Temperature in Screw Processing

Abstract

To analyze the effects of forces that affect the resin and its movement while it is processed in a screw, a simulation method is proposed based on finite element. The method includes mainly two series of equations and their numerical calculations. The movement equation of the resin in a screw represents the stress, the strain, and the relationship between velocity and stress of the cells. A discretized differential equation is used to express the exchange of shearing heat. Combined with the displacement and temperature boundary, the equations are solved by the numerical calculation procedure, and velocity and temperature distribution are worked out. The computation sample has illustrated the validity of the proposed method. And the results have shown its importance in an industrial application with aspects such as redesigning a screw or improving the quality of the plastic products.