Abstract: Based on an analysis of structural characteristics and the working principle of vane plasticization extruder, a theoretical model of polymer conveying of vane extruder was formulated for studying the polymer materials conveying characteristics in a vane extruder. The experiments related to the polymer materials conveying characteristics were performed using a vane extruder and a screw extruder. It showed that the theory and practical productions of vane extruder were consistent. Compared with conventional single-screw extruder, the efficiency of extrusion conveying of vane extruder was higher, and less dependent on die pressure and material properties.

Key words: vane plasticization extruder, positive displacement conveying, extrusion output