Metal cord reinforced flexible pipe

Details Metal cord reinforced flexible pipe Metal cord reinforced flexible pipe

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 11/08 (2006.01) B32B 11/08 (2006.01) B32B 15/08 (2006.01) F16L 9/133 (2006.01) F16L 9/147 (2006.01) F16L 11/20 (2006.01)

Patent

CA 2755289

A flexible pipe for conveying pres-surized fluids that has an inner tubular layer, two reinforcing layers, an outer layer and a barrier lay-er. The reinforcing layers are comprised of metal cords wrapped around the inner tubular layer. The metal cords may be comprised of multiple indi-vidual wires twisted about themselves or a central guide line. The barrier layer may be positioned between the two reinforcing layers and penetrate therebetween. Additionally, a method for making a flexible pipe is provided, which includes the use of heat to facilitate the penetration of the barrier layer into each of the reinforcing layers.

L'invention porte sur un tuyau souple destiné à transporter des fluides sous pression, lequel tuyau a une couche tubulaire interne, deux couches de renforcement, une couche externe et une couche barrière. Les couches de renforcement sont constituées de câbles métalliques enroulés autour de la couche tubulaire interne. Les câbles métalliques peuvent être constitués de multiples fils individuels torsadés sur eux-mêmes ou sur une ligne de guidage centrale. La couche barrière peut être positionnée entre les deux couches de renforcement et pénétrer entre celles-ci. De plus, l'invention porte sur un procédé pour fabriquer un tuyau souple, lequel procédé comprend l'utilisation de chaleur pour faciliter la pénétration de la couche barrière dans chacune des couches de renforcement.

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