PROCEDURE FOR NON DESTRUCTIVE CHECK OF QUALITY AT COUPLING REPAIR OF PIPELINES Russian patent published in 2011 - IPC F16L55/175 

Abstract RU 2430293 C1

FIELD: machine building.

SUBSTANCE: self-hardening mass is pressed into under-coupling space before performing condition where σpts are measured circular mechanical tensile stresses in pipe wall, σmts are measured circular mechanical tensile stresses in a wall of the coupling, δp is pipe wall thickness, δc coupling wall thickness.

EFFECT: upgraded quality of repair.

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RU 2 430 293 C1

Authors

Tymchik Grigorij Semenovich

Podoljan Aleksandr Aleksandrovich

Pudrij Sergej Vladimirovich

Tomashuk Aleksandr Ivanovich

Dates

2011-09-27Published

2010-01-18Filed