CHEMICAL SUBSTANCE FOR FORMING SOLID LUBRICANT COATING FILM, OIL WELL PIPE, AND SCREW-THREADED JOINT FOR OIL WELL PIPES

A solid lubricating coating film is used to realize galling resistance equal to or higher than that of a method using a dope compound according to the related art in terms of lubrication characteristics at the time of make-up/break-out of oil country tubular goods. There is provided a threaded joint...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	OKUBO Akira, SAWAKI Tetsuro, SATO Hideo, KOBAYASHI Ryota, GOTO Seigo, KUBO Ryota, SHODA Koichi, TOYOSAWA Kota, ISHIGURO Yasuhide, YOSHIKAWA Masaki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMISTRY DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS FUELS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS JOINTS OR FITTINGS FOR PIPES LIGHTING LUBRICANTS LUBRICATING COMPOSITIONS MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TECHNICAL GASES CONTAINING CARBON MONOXIDE THERMAL INSULATION IN GENERAL USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A solid lubricating coating film is used to realize galling resistance equal to or higher than that of a method using a dope compound according to the related art in terms of lubrication characteristics at the time of make-up/break-out of oil country tubular goods. There is provided a threaded joint for oil country tubular goods including a box (2) having a thread and a pin (1) having a male thread (1a). A lubricating coating film including a solid lubricating coating film (3) is formed on a tightening surface (10) of a thread portion of at least one component of the box (2) and the pin (1), the solid lubricating coating film (3) is formed by dispersing a solid lubricant in a binder resin, 90 wt% or more of the binder resin is a polyamideimide resin, an average molecular weight of the polyamideimide resin is 20,000 or more and 40,000 or less, 80 wt% or more of the solid lubricant is polytetrafluoroethylene (PTFE), and an average molecular weight of the PTFE is 30,000 or less.