AGENT FOR FORMING SOLID LUBRICANT COATING FILM, TUBULAR PRODUCTS FOR OIL FIELDS, THREADED JOINT FOR TUBULAR PRODUCTS FOR OIL FIELDS, AND METHOD FOR MANUFACTURING TUBULAR PRODUCTS FOR OIL FIELDS

Abstract

Agent for forming a solid lubricating coating film, tubular products for oilfields, threaded joint for tubular products for oilfields, and method for manufacturing tubular products for oilfields. A solid lubricating coating film is provided that is capable of imparting favorable lubricity and corrosion resistance to a connection for tubular products for oilfields, even when graphite is employed as a solid lubricant. Two or more solid lubricants are dispersed in a binder resin. Graphite is contained, as one of the two or more types of solid lubricants, in an amount of 50% or more and 90% or less of the total weight of the solid lubricants, and the graphite has a flaky form and an average particle diameter of 10.0 micrometers or less.A solid lubricant made of one or more materials selected from BN, mica, talc, MCA, MOS2, PTFE, PFA, and FEP is further contained as other solid lubricants of two or more types of solid lubricants. The binder resin contains a PEEK resin having an average particle diameter of 20 micrometers or less as the main component, and the PEEK resin is contained in an amount of 70% or more of the total weight of the binder resin.

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