Conduits and method of forming

Details Conduits and method of forming Conduits and method of forming

B - Operations, Transporting

29

C

B29C 53/02 (2006.01) B29B 15/14 (2006.01) B29C 53/36 (2006.01) B29C 53/56 (2006.01) B29C 53/58 (2006.01) B29C 53/60 (2006.01) B29C 63/00 (2006.01) F16L 9/16 (2006.01) F16L 11/115 (2006.01) B29C 47/02 (2006.01) B29C 59/00 (2006.01) B29C 65/00 (2006.01) B29C 65/18 (2006.01)

Patent

CA 2498201

A method of continuously forming heated conduit (17) includes performing a tape (31) for winding onto a spiral pipeline former. At least one conductor (4,5) is positioned adjacent to the centreline of and parallel with a thin polymer ribbon. The ribbon is folded in half to encapsulate the conductors. The folded ribbon is thermally welded to itself. The folded, welded, ribbon is passed through a creaser, which forms a crease midway across the folded ribbon. The creased pre-formed ribbon is formed into a conduit in a continuous process on a spiral pipeline former (24).

L'invention concerne un procédé destiné à former en continu un conduit chauffé (17) qui consiste à former un ruban (31) destiné à être enroulé dans un formeur de pipeline en spirale. Au moins un conducteur (4, 5) est placé à proximité de la ligne centrale et en parallèle par rapport au ruban de polymère fin. Le ruban est plié par la moitié afin d'encapsuler les conducteurs. Le ruban plié y est thermiquement soudé. Le ruban soudé et plié est ensuite placé à travers un plisseur, qui forme un pli au milieu du ruban plié. Le ruban préformé et plié est fabriqué dans un conduit au moyen d'un procédé continu sur un formeur de pipeline en spirale (24).

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