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2 380 206

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IPC

B23K11/02(2006-01-01)

B23K11/10(2006-01-01)

B23K31/02(2006-01-01)

G21C3/10(2006-01-01)

G21C21/00(2006-01-01)

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Application

2007108867/02, 2007-03-09

(24)

Start date

2007-03-09

(22)

Actual filing date

2007-03-09

(45)

Published

2010-01-27

(72)

Inventor

Chapaev Igor' Gennad'EvichStrukov Aleksandr VladimirovichJaichnikov Sergej ViktorovichKislitskij Aleksandr AntonovichPetrov Andrej NikolaevichLuzin Aleksandr MikhajlovichJurin Petr Mikhajlovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

METHOD FOR MANUFACTURING OF NUCLEAR REACTOR FUEL ELEMENT Russian patent published in 2010 - IPC B23K11/02 B23K11/10 B23K31/02 G21C3/10 G21C21/00

Abstract RU 2380206 C2

FIELD: technological processes.

SUBSTANCE: invention is related to method for manufacturing of fuel element (FE) of nuclear reactor and may find application in nuclear engineering. Method includes fixation of its shell end in welding installation equipment, creation of atmosphere with specified composition and pulling pressure by means of vacuumising, filling with high pressure inertial gas with further sealing with plug using contact-upset welding for its welding into shell, and its diametre is more than internal diametre of shell, and monitoring of gas pressure under shell. Monitoring is realised directly in welding installation. For this purpose prior to vacuumising clearance is created between ends of shell and plug arranged in welding installation, and its value is measured at continuous measurement of gas pressure value. Value of clearance is first measured till filling of fuel element shell with gas, then after application of welding force. Afterwards produced results are compared, and permits for welding are issued, if difference in produced measurements corresponds to specified values.

EFFECT: invention provides for improved serviceability of fuel elements.

6 cl, 3 dwg

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RU 2 380 206 C2

Authors

Chapaev Igor' Gennad'Evich

Strukov Aleksandr Vladimirovich

Jaichnikov Sergej Viktorovich

Kislitskij Aleksandr Antonovich

Petrov Andrej Nikolaevich

Luzin Aleksandr Mikhajlovich

Jurin Petr Mikhajlovich

Dates

2010-01-27—Published

2007-03-09—Filed