Influence of rotor on extrusion pressure

Extrusion of a paste material has a significant position in the processing of powder materials. The reduction between the barrel and die, often with a complicated cross-section, is a necessary detail of each extruder. If a deformation element of special design is situated in this zone, it has a positive influence on the process of extrusion. Its shape can be varied. In this case, it is a rotor with blades that move on the surface of the matrix, which has influence on the rate of shear strain. The effects decrease the apparent viscosity and extrusion pressure.