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2 083 003

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C1

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IPC

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Application

93007782/25, 1993-02-09

(22)

Actual filing date

1993-02-09

(45)

Published

1997-06-27

(72)

Inventor

Eperin A.P.Garusov Ju.V.Shavlov M.V.Pavlov M.A.Bogdanov V.I.Rogozin V.N.Sekach I.V.

(73)

Holder

Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

REPAIR METHOD FOR GRAPHITE BLOCKS OF PRESSURIZED-TUBE NUCLEAR REACTOR Russian patent published in 1997 - IPC

Abstract RU 2083003 C1

FIELD: nuclear engineering. SUBSTANCE: rod-with cutting tool is introduced in column channel to make drillings in blocks; drilling is made in the form of conical groove over perimeter of joints of adjacent blocks; drilling is made in blocks in which channel diameter is smaller at joint, that is, at point of advanced shrinkage of graphite so that graphite shrinkage through column channel is equalized. Next repair of column channels will depend on minimal clearance uniform through height of column channel. EFFECT: improved service life of column channels after repair. 5 dwg

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RU 2 083 003 C1

Authors

Eperin A.P.

Garusov Ju.V.

Shavlov M.V.

Pavlov M.A.

Bogdanov V.I.

Rogozin V.N.

Sekach I.V.

Dates

1997-06-27—Published

1993-02-09—Filed

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