THREADED JOINT FOR PIPES AND METHOD FOR PRODUCING THREADED JOINT FOR PIPES

Provided is a threaded joint for pipes, which has achieved excellent welding resistance without performing a surface roughening step, said excellent welding resistance being comparable to those in cases where a surface roughening step is performed, and which has low shouldering torque. A threaded jo...

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Bibliographische Detailangaben
Hauptverfasser:	KIMOTO, Masanari, OSHIMA, Masahiro
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	APPARATUS THEREFOR BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY PIPES PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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