SOLID LUBRICANT COATING COMPOSITION, THREADED JOINT FOR PIPES COMPRISING SOLID LUBRICANT COATING FORMED USING SAID COMPOSITION, AND PRODUCTION METHOD FOR SAID THREADED JOINT FOR PIPES

Title:

SOLID LUBRICANT COATING COMPOSITION, THREADED JOINT FOR PIPES COMPRISING SOLID LUBRICANT COATING FORMED USING SAID COMPOSITION, AND PRODUCTION METHOD FOR SAID THREADED JOINT FOR PIPES

Document Type and Number:

WIPO Patent Application WO/2015/141159

Kind Code:

A1

Abstract:

Provided are: a threaded joint for pipes that, even in an extremely low-temperature environment and without using a compound grease, suppresses the generation of rust, exhibits excellent seizure resistance and airtightness, and has a surface that is unlikely to be sticky; a production method therefor; and a composition for forming a solid lubricant coating on the threaded joint for pipes. A solid lubricant coating (24) formed from a composition containing a binding agent, a fluorine-based additive, a solid lubricant, and an anti-rust additive is coated, as an uppermost surface treatment coating, on the contact surface of at least either a pin or a box. The solid lubricant coating (24) is capable of maintaining adhesiveness even if exposed to extremely low-temperature environments, is capable of exhibiting a lubrication-applying function, is capable of suppressing thread joint seizure, and is capable of ensuring airtightness after fastening.

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Inventors:

GOTO KUNIO (JP)

Application Number:

PCT/JP2015/001112

Publication Date:

September 24, 2015

Filing Date:

March 03, 2015

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)
VALLOUREC OIL & GAS FRANCE (FR)

International Classes:

C10M169/04; F16L15/04; C10M107/02; C10M107/26; C10M109/00; C10M125/30; C10M147/00; C10N40/00; C10N50/08

Foreign References:

JP5124887B2	2013-01-23
JP2009512819A	2009-03-26
JP2010523920A	2010-07-15
JP2013545940A	2013-12-26

Other References: