F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 9/16 (2006.01) F16L 9/18 (2006.01) F16L 55/165 (2006.01) F16L 58/10 (2006.01)
Patent
CA 2348423
The invention relates to a method of making a pipe, and a pipe. The pipe consists of an outer pipe (2) providing mechanical strength and of an inner layer providing tightness. The outer pipe (2) and the inner layer are formed from semi-finished products that require substantially less space during storage than finished pipes. The outer pipe (2) is made for example by winding a profile (1) into a helix. The outer pipe (2) is coated from the inside before it is taken into use by inserting a flexible inner lining (4) into the pipe. The inner lining (4) is rounded against the outer pipe (2), and the inner lining (4) and the outer pipe are joined so that the inner lining (4) forms an inner layer acting as a flow surface.
On décrit un procédé de fabrication d'un tuyau et le tuyau ainsi produit. Le tuyau est constitué d'un tuyau externe (2) qui confère la résistance mécanique et d'une couche intérieure qui assure l'étanchéité. Le tuyau externe (2) et la couche intérieure sont formés à partir de produits semi-finis qui nécessitent sensiblement moins d'espace pendant le stockage que les tuyaux finis. Le tuyau externe (2) est par exemple produit au moyen de l'enroulement d'un profilé (1) sous forme d'une hélice. Le tuyau externe (2) est recouvert de l'intérieur avant son utilisation via l'introduction d'une chemise (4) intérieure souple dans le tuyau. La chemise intérieure (4) est enroulée contre le tuyau externe (2), puis tous deux sont réunis de sorte que la chemise intérieure (4) forme une couche interne faisant office de surface d'écoulement.
Cassan Maclean
Uponor Innovation Ab
LandOfFree
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