Twin-screw, two-stage and multi-stage extruder having a double feed

摘要

In plastics material extruding installation, a number of layout arrangements of conventional twin-screw extruders with double-feed twin-screw extruders are provided in various combinations in order to solve the problems of a thorough degassing of the plastics material and of an intimate admixture of the several compounding ingredients or raw plastics materials so as to obtain a really homogeneous extrudate.