Twin screw extruder

Details Twin screw extruder Twin screw extruder

B - Operations, Transporting

29

C

B29C 47/38 (2006.01) B29C 47/40 (2006.01) B29C 47/60 (2006.01)

Patent

CA 2292167

A twin screw extruder has a casing with a working direction, two partially intersecting casing bores, which are parallel to each other, two shafts, which are disposed in the casing bores and which are drivable to rotate in the same direction of rotation about an axis of rotation, the axes of rotation having a distance A from each other, and single-flight kneading disks, which are fixed on the shafts and have surface lines extending parallel to the respective axis of rotation. The kneading disks, in a cross-section perpendicular to the axis of rotation, have a crest, which is formed as a segment of a circle about the respective axis of rotation and which has a crest angle b and a radius R A, a bottom, which is formed as a segment of a circle about the respective axis of rotation and has a bottom angle g and a radius R I and two flanks, which join the crest and the bottom, R A > R I, A ~ R A + R I and 0° ~ b ~ 45° applying.

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