Screw for use in an extruder

Details Screw for use in an extruder Screw for use in an extruder

1975-09-03

1977-10-11

Aegerter, Richard E.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

B30B 1124

Patent

active

040531430

ABSTRACT:
There is provided a screw for use in an extruder comprising a melting section and a metering section and a decompression section therebetween so that the head pressure profile along the longitudinal direction of the extruder is higher than atmospheric pressure and has an inflection point, with the result that a high melting performance is attained and a high extrusion stability is ensured even at a high extrusion rate.

REFERENCES:
patent: 3762693 (1973-10-01), De Boo
patent: 3814779 (1974-06-01), Wiley
patent: 3881708 (1975-05-01), Carle

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