Centrifugal extrusion apparatus which heat plastifies material b

Details Centrifugal extrusion apparatus which heat plastifies material b Centrifugal extrusion apparatus which heat plastifies material b

1976-02-25

1977-09-27

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Plural orifices

264176R, 425 8, 425464, B29F 306

Patent

active

040508749

ABSTRACT:
A centrifugal extruder is provided with a friction generating element within a hollow rotor of the extruder. The material to be extruded is heated by shear generated by differential rotation between the extruder rotor and a shear generating element. Heat plastification is obtained adjacent the periphery of the rotor and a very short heat history is added to material treated in the apparatus.

REFERENCES:
patent: 3015128 (1962-01-01), Somerville, Jr.
patent: 3293695 (1966-12-01), Baymiller et al.
patent: 3597176 (1971-08-01), Plumat
patent: 3877918 (1975-04-01), Cerbo
patent: 3912799 (1975-10-01), Chisholm

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