Title: Lubricating coating composition suitable for lubrication of a threaded joint
Application Number: 01820039 Application Date: 2001.12.04
Publication Number: 1526006 Publication Date: 2004.09.01
Approval Pub. Date: 2006.10.18 Granted Pub. Date: 2006.10.18
International Classifi-cation: C10M159/20,F16L15/04,C10N40/00,C10N50/02
Applicant(s) Name: Sumitomo Metal Ind. Address:
Inventor(s) Name: Goto Kunio, Nagasaku Shigeo
Attorney & Agent: liu chunqi
Abstract:
     A composition for lubricating-film formation which comprises a base and dissolved therein at least one basic oil selected among basic sulfonates, basic salicylates, and basic phenates. The composition is applied to the frictional surface of a box and/or pin constituting a screw joint to form a lubricating film. The composition can further contain one or more of particulate thermoplastic resins, other oils, and extreme-pressure additives. The mating parts preferably have a surface roughness of 5 to 40 mgr;m in terms of Rmax.
Time: 8
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