These years, novel screw is used increasingly in the field of plastic, and most of extruders are equipped with all kinds of screws in some developed countries.

The parametric designing of new type screw of extruder was introduced.

Finite Element Analysis on Screw Intensity of Novel Screw Extruder;

Numerical simulations of the flow fields of different configurations of a new screw element for intermeshing co rotating twin screw extruders-S element,composed of different ratio of positive and negative elements,are conducted by FEM.

Based on the development and theory of the nested screw novel extruder,the design principle,feeding system,extrusion system,drive system,solids conveying model and solids temperature model,and melt conveying model and melt temperature model were studied herein.