METHOD FOR SEALING THREADED PIPE JOINTS

The invention relates to pipe production. A method for sealing threaded pipe connections involves preparing the surface of a threaded connection in order to create a porous adhesion layer on the metal, applying a polymer coating with the addition of gamma-aminosilane in an amount comprising 1-15% by...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TOKAREV, PAVEL ALEKSEEVICH, TOKAREV, ALEKSEY VASILEVICH, KOLESNICHENKO, VASILIY VASILEVICH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to pipe production. A method for sealing threaded pipe connections involves preparing the surface of a threaded connection in order to create a porous adhesion layer on the metal, applying a polymer coating with the addition of gamma-aminosilane in an amount comprising 1-15% by mass of the dry polymer residue, and filling the threaded space with a sealing material based on a composition of graphite and a copolymer of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP). Prior to applying the polymer coating to the threaded surface of an item, a synthetic corrosion inhibitor is applied to the porous adhesion layer. The film of inhibitor acts to prevent corrosive processes from taking place on the surface of an item while using same in various climatic conditions, thus increasing corrosion resistance and also the reliability of the applied coating due to high adhesion between the layers thereof.