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2 158 031

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IPC

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Application

98115219/06, 1998-08-06

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Start date

1998-08-06

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Actual filing date

1998-08-06

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Published

2000-10-20

(72)

Inventor

Afanas'Ev V.L.Batuev V.I.Chapaev I.G.Mileshko V.A.Zhukov Ju.A.Makarov V.I.Bachurin V.D.Marchenko V.G.Luzin A.M.Filippov E.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

METHOD FOR ULTRASONIC INSPECTION OF RESISTANCE BUTT WELD BETWEEN FUEL ELEMENT PLUG AND CLADDING Russian patent published in 2000 - IPC

Abstract RU 2158031 C2

FIELD: nuclear power engineering. SUBSTANCE: method primarily meant for VVER and RBMK reactors involves use of emitting and detecting piezoelectric transducers which are set in reciprocating motion in axial direction relative to fuel element in vicinity of plug-to-cladding weld in line- by-line manner with fuel element turned stepwise about its axis through one pitch which is chosen to equal half the diameter of ultrasonic beam; this process is combined with stepped turning of fuel element about its axis; emission of ultrasonic beams from three piezoelectric transducers is combined with their detection by at least three piezoelectric transducers. EFFECT: improved quality of inspection due to better measurement accuracy. 3 cl, 7 dwg

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RU 2 158 031 C2

Authors

Afanas'Ev V.L.

Batuev V.I.

Chapaev I.G.

Mileshko V.A.

Zhukov Ju.A.

Makarov V.I.

Bachurin V.D.

Marchenko V.G.

Luzin A.M.

Filippov E.A.

Dates

2000-10-20—Published

1998-08-06—Filed

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