Threaded joint for pipes

Details Threaded joint for pipes Threaded joint for pipes

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 15/04 (2006.01) C23C 22/07 (2006.01) C23C 22/46 (2006.01) C23C 26/00 (2006.01)

Patent

CA 2755888

A solid lubricating coating formed on a contact surface of a threaded joint for pipes has a matrix of a lubricating oil-containing polymer. The lubricating oil-containing polymer has either a uniform composition or a gradient composition in which the concentration of lubricating oil decreases towards the contact surface and in which there is substantially no lubricating oil in the vicinity of the contact surface.

L'invention concerne un revêtement lubrifiant solide formé sur une surface de contact d'un raccord fileté pour tuyaux qui a une matrice d'un polymère contenant de l'huile de lubrification. Ledit polymère contenant de l'huile de lubrification a soit une composition uniforme, soit une composition de gradient dans laquelle la teneur en huile de lubrification décroît en direction de la surface de contact et dans laquelle il n'y a sensiblement aucune huile de lubrification à proximité de la surface de contact.

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