Threaded joint of pipe and method for connecting same

A threaded joint wherein a relationship between shoulder angle parameters and thread taper angle parameters for a coupling and a pair of pins inserted from both ends of the coupling is defined by the following expression (1), and a tightening torque with which the threaded joint is tightened is 60%...

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Bibliographic Details
Main Authors Yoshikawa, Masaki, Sato, Hideo, Goto, Seigo, Ozaki, Seiji
Format Patent
LanguageEnglish
Published 08.10.2024
Subjects
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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Summary:A threaded joint wherein a relationship between shoulder angle parameters and thread taper angle parameters for a coupling and a pair of pins inserted from both ends of the coupling is defined by the following expression (1), and a tightening torque with which the threaded joint is tightened is 60% or more and 85% or less of a yield torque determined by the following expression (2):-1.5⁢°≤Δ⁢θ-Δ⁢ω≤2.°,(1)T=(TS+TD)⁢112(2)TS=ft⁢Pc⁢E72⁢(2⁢π⁢E7)⁢L4⁢12Pc=E⁢ρm2⁢((W2)2-(E72)2)⁢((E72)2-(d2)2)2⁢(E72)3⁢((W2)2-(d2)2)TD=Ym⁢AS(P2⁢π+Rt⁢fscos⁢Θ+Rs⁢fs).
Bibliography:Application Number: US202018044990