B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/02 (2006.01) B29C 47/04 (2006.01) B29C 57/02 (2006.01) B29C 63/10 (2006.01) B29C 35/04 (2006.01) B29C 35/08 (2006.01) B29C 35/16 (2006.01) B29C 47/14 (2006.01) B29C 47/90 (2006.01) B29C 53/30 (2006.01)
Patent
CA 2462733
The invention relates to a method and device for producing a reinforced socket on an extruded plastic tube made of thermoplastic material, preferably on a corrugated tube. According to the invention, the ends of the tube are provided with sockets located at predetermined section lengths. One end of the plastic tube or a section thereof is slid onto a supporting mandrel and, together with the supporting mandrel, is rotated about its longitudinal axis. During rotation, a plastic layer is extruded onto a pre-shaped socket area of the tube and/or onto the supporting mandrel whereby forming a reinforced socket that is shaped onto the tube.
L'invention concerne un procédé et un dispositif servant à produire un manchon renforcé sur un tube extrudé en matière thermoplastique, de préférence sur un tube ondulé, le tube étant pourvu de manchons d'extrémité à des longueurs de segment prédéfinies. Selon l'invention, une extrémité du tube en plastique ou d'un segment du tube est glissée sur un mandrin support et tourne avec le mandrin support autour de son axe longitudinal. Pendant la rotation, une couche plastique est extrudée sur une zone de manchon préformée du tube ou sur le mandrin support. Cette couche plastique constitue un manchon renforcé, formé sur le tube.
Dietrich Karl
Huebner Peter
Drossbach Gmbh & Co. Kg
Smart & Biggar
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