Extruder with ceramic processing unit

Details Extruder with ceramic processing unit Extruder with ceramic processing unit

1989-03-07

1990-07-17

Woo, Jay H.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

425190, 425192R, 425200, 425208, B29C 4740, B29C 4760, B29C 4766

Patent

active

049417487

ABSTRACT:
On a single-screw or multi-screw extruder, the part of the barrel lying between a front plate (1) and end plate (2) bounding the processing unit is subdivided into barrel discs (5) of ceramic materials, which are arranged on at least one guide rail (7). The barrel discs (5) are held together by an anchor (9) fixed on the front plate (1) and end plate (2) and at the same time secured against twisting. In addition, the screw elements (3) within the processing unit between front plate (1) and end plate (2) are also made from the same or from another ceramic material.

REFERENCES:
patent: 3900188 (1975-08-01), Seufert
patent: 4036540 (1977-07-01), Seufert
patent: 4474473 (1984-10-01), Higuchi et al.
patent: 4530761 (1985-07-01), Koch et al.
patent: 4599002 (1986-07-01), Gutknecht
patent: 4640672 (1987-02-01), Ellwood
patent: 4696575 (1987-09-01), Upmeier
patent: 4746220 (1988-05-01), Sukai et al.

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