B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/08 (2006.01) B29C 35/02 (2006.01) B29C 47/00 (2006.01) B29C 47/20 (2006.01) B29C 47/38 (2006.01) B29C 47/82 (2006.01) B29C 47/86 (2006.01) B29C 47/88 (2006.01) B29D 23/00 (2006.01)
Patent
CA 2287822
The present invention relates to apparatus for extruding mouldings from cross-linkable polymer material. The apparatus includes a first part to which the polymer material is delivered from a material container, and a second part which forms a moulding tool for moulding and cross-linking said article. The first part of the apparatus includes a feed zone (2) that has an inlet (8), a generally tubular outlet (7) and a rotatable feed screw (10) that functions to compress and feed the polymer material in a unmelted or solid state from said inlet (8) to said outlet (7), wherein the length of the feed screw (10) does not exceed the length of the feed zone (2). The invention also relates to a method of extruding articles frorn cross- linkable polymer material in an extruder.
Axelsson Curt
Johnsson Nils-Olof
Rydberg Jan
Sjoberg Michael
Marks & Clerk
Wirsbo Bruks Ab
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