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Application

2002122576/06, 2002-08-20

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Start date

2002-08-20

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Actual filing date

2002-08-20

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Published

2005-02-20

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Inventor

Zarubin M.G.Batuev V.I.Bychikhin N.A.Chinnov A.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

METHOD FOR MANUFACTURING SPACER GRID OF NUCLEAR-REACTOR FUEL ASSEMBLY Russian patent published in 2005 - IPC

Abstract RU 2246768 C2

FIELD: nuclear engineering.

SUBSTANCE: proposed method primarily used for manufacturing spacer grids of VVER reactor fuel assemblies involves pre-compression of dynamometric clamp by welding gun electrodes prior to spot welding of shaped subchannels beyond subchannel field, evaluation of compression of welding gun electrodes by displacement distance of clamp jaws and force indicator readings, whereupon information about this compression force is processed in computer and passed to spatial displacement actuating mechanism of welding gun for conducting spot welding of shaped subchannels in assembled field when compression forces of electrodes comply with desired values or for ceasing spot welding when compression forces do not comply with desired values, this information being displayed on computer monitor.

EFFECT: enhanced quality of spacer grid manufactured by this method.

1 cl, 3 dwg

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RU 2 246 768 C2

Authors

Zarubin M.G.

Batuev V.I.

Bychikhin N.A.

Chinnov A.V.

Dates

2005-02-20—Published

2002-08-20—Filed

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