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[Simulation Analysis for Polymer Processing by PC (4), Japan Plastics, Vol.50, No.2, P.86 (1999)]

Widely used screw extruders for polymer processing are plasticating extruders, where solid pellets or flakes are melted and pumped. Screw pumps that are used to transport viscous fluid, e.g. pumps for pulling out molten polymer from polymerization vessels, are also in practical use.

Melt conveying theories of screw extruder are discussed in this chapter and in the next. These theories can be applied to the analysis of metering zone of plasticating extruder too.

This chapter treats screw extrusion of Newtonian fluid.