Barrel section with electrical heating elements for a twin-screw extruder

摘要

The invention relates to an electrically heated barrel for a twin-screw extruder which is formed by a plurality of flanged-together barrel sections (2). To improve the heat transfer, the stable outer barrel (2') is provided with two opposite radial recesses (21), in which on both sides there are inserted with a form fit inserts (8) which closely surround the outer contour of the inner barrel (4), butt against each other in the centre and are equipped with a plurality of heating elements (9) arranged in different planes and designed differently in shape and output. <IMAGE>