Use of electroless metal coating to prevent galling of threaded

Pipe joints or couplings – With casing – lining or protector – Lined

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285 94, 285333, 285422, 427305, F16L 914

Patent

active

047580259

ABSTRACT:
The present invention discloses the use of electroless metal coatings, preferrably copper or zinc, on oil country tubular goods to eliminate galling of the threads, provide a tortuous path as a sealing surface, and provide porous lubricant reservoirs.

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