Screw removal 1
Vol. 17 #4, Mar. 1991
Before removing a screw from an extruder, disconnect the die and breaker plate, and run ultra high molecular weight (>1 mm) polyethylene through the open discharge. It will not melt, but will strip the screw free of melted polymer.
See also
Extruder screw won't push out
Screw removal 2
Screw removal 3
Screw removal 4
Oak persuaders