Method for manufacturing a mandrel

Details Method for manufacturing a mandrel Method for manufacturing a mandrel

B - Operations, Transporting

29

C

B29C 53/80 (2006.01) B29C 33/38 (2006.01) B29C 33/40 (2006.01) B29C 33/42 (2006.01) B29C 33/44 (2006.01) B29C 53/82 (2006.01)

Patent

CA 2706396

A method of manufacturing a mandrel for use in the internal coating of a pipe elbow or bend comprises the steps of: (i) adjustably positioning a bendable elongate member in a hollow template for he pipe elbow or bend, whereby the elongate member is bent so as to extend generally centrally through the template; and (ii) introducing a flexible material into, and allowing the material to cure in a space between the elongate member and an internal surface of the template.

La présente invention concerne un procédé de fabrication d'un mandrin destiné à la réalisation du revêtement interne d'un tuyau au niveau d'un coude ou d'un segment cintré. Ce procédé consiste: (i) à disposer de façon réglable un élément oblong flexible dans un gabarit creux destiné au coude ou à la courbure du tuyau, l'élément oblong étant cintré de façon à être généralement bien centré sur toute la longueur du gabarit; et (ii) à introduire une matière souple à l'intérieur du volume libre entre l'élément oblong et la surface intérieure du gabarit.

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