THREADED JOINT FOR STEEL PIPES Russian patent published in 2009 - IPC F16L15/04 

Abstract RU 2349825 C1

FIELD: transport, pipelines.

SUBSTANCE: proposed threaded joint comprises a sleeve and a coupling with threaded sections and a threadless contact to get into contact on fastening the joint. The contact surfaces of at least one sleeve or coupling are coated with a lower layer of solid lubricating coat including a solid lubricating powder and a binder, and an upper layer of solid antirust coat from organic resin not containing solid particles.

EFFECT: higher adhesion.

10 cl, 4 dwg

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RU 2 349 825 C1

Authors

Imai Rjuiti

Goto Kunio

Takanasi Kaoru

Ogava Jasukhiro

Dates

2009-03-20Published

2006-01-11Filed