Screw-type extrusion machine with heating elements

Details Screw-type extrusion machine with heating elements Screw-type extrusion machine with heating elements

1991-10-25

1996-08-27

Scherbel, David

Agitating

With heating or cooling

Fluid-filled jacket

425208, 425204, 219421, 366145, 366146, 366 84, B01F 1506, B01F 708

Patent

active

055493831

ABSTRACT:
A screw-type extrusion machine has a housing with at least one housing bore, in which a screw shaft is arranged. The housing has outer surfaces, which have a non-constant distance to the wall of the at least one bore. The outer surfaces are provided with heating elements. In order to attain an approximately constant temperature along the circumference of the wall of the at least one bore, heating elements of a different specific heating capacity are arranged sectionally on the outer surfaces of the housing, the heating elements being such formed that the heating temperature at the wall of the at least one bore is approximately constant.

REFERENCES:
patent: 2090570 (1937-08-01), Classen
patent: 2541201 (1951-02-01), Buecken et al.
patent: 2769201 (1956-11-01), Lorenian
patent: 2814472 (1957-11-01), Erdmenger
patent: 3161756 (1964-12-01), Haverkamp et al.
patent: 4028027 (1977-06-01), Worz
patent: 4127331 (1978-11-01), Herbert et al.
patent: 4415268 (1983-11-01), Brinkmann et al.
patent: 4649262 (1987-03-01), Yoshikawa
patent: 4702695 (1987-10-01), Blanch

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