METHOD OF RECOVERING INITIAL MECHANICAL PROPERTIES OF METAL OF LONG-TERM OPERATING PIPES Russian patent published in 2006 - IPC G01N1/28 C21D8/00 

Abstract RU 2290620 C1

FIELD: testing engineering.

SUBSTANCE: method comprises cutting specimens of the pipes to be tested, recovering initial properties of the metal by heat treatment, and preparing the specimens for testing. The treatment comprises heating the specimens up to 500°C, allowing them to stand at this temperature for 1.5 hours, and cooling specimens. The preparation for testing comprises pressing and plastic deformation of the specimens.

EFFECT: enhanced reliability of testing.

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RU 2 290 620 C1

Authors

Shementov Vladimir Aleksandrovich

Zajtsev Nikolaj Leonidovich

Gajdt David Davidovich

Demakov Anton Mikhajlovich

Dates

2006-12-27Published

2005-07-12Filed