Method and apparatus for the orientation of a plastic pipe

Details Method and apparatus for the orientation of a plastic pipe Method and apparatus for the orientation of a plastic pipe

F - Mech Eng,Light,Heat,Weapons

16

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F16L 9/12 (2006.01) B29C 47/12 (2006.01) B29C 47/90 (2006.01) B29C 53/30 (2006.01) B29C 55/24 (2006.01) B29D 23/18 (2006.01)

Patent

CA 2091488

A method and an apparatus for the orientation of a plastic pipe, wherein a pipe blank (2) is produced with an extruder and fed into a pipe forming apparatus provided with movable moulds (3), such as a corrugator, the pipe being conveyed forward in the corrugator with said moulds over a mandrel (4), along which the pipe is further conveyed out from the corrugator. In accordance with the invention, the plastic pipe (7) is oriented radially immediately after the corrugator by means of a conically widening mandrel (5) forming an extension of said corrugator. The invention also relates to an oriented ribbed plastic pipe produced by the method.

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