Kneading extruder

Details Kneading extruder Kneading extruder

2007-03-12

2011-10-25

Cooley, Charles E (Department: 1774)

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

C366S085000

Reexamination Certificate

active

08042987

ABSTRACT:
Twist kneading disks are arranged such that the width of a piece of disk is 0.1 to 0.5 times the cylinder inner diameter D, a helix angle θ as an angle between a vertex of the front surface side of the disk and vertex of the rear surface side of the disk at the tip portion is in a range of 0°<θ<90° in the reverse rotating direction of the screws as viewed from a cross section of the disk in the end direction of the screw shaft, and a phase angle E as an angle in correlation between the disks around the screw shaft is in a range of 0°<E<90°. The twist kneading disks are incorporated in the plasticization kneading portion at the length of more than 1.88 times the cylinder inner diameter D.

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