METHOD FOR REPAIR OF PRESSURE VESSELS Russian patent published in 1997 - IPC

Abstract RU 2094201 C1

FIELD: repair of pressure vessels working in hydrogen-containing mediums. SUBSTANCE: method involves removing gas from metal; drilling openings in metal delamination zones, filled with gaseous products of hydrogen corrosion; detecting depressurization moment by nature of changing deformation-stressed state of metal on vessel surface, i.e. by detecting change in the values of electric resistance of resistor element during depressurization of delaminations in metal. EFFECT: increased efficiency and simplified method. 2 cl, 1 dwg

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RU 2 094 201 C1

Authors

Rafalovich I.M.

Mamaeva E.I.

Dates

1997-10-27—Published

1996-05-05—Filed