METHOD FOR PRESSURIZING TUBULAR PARTS Russian patent published in 2001 - IPC

Abstract RU 2166215 C2

FIELD: manufacture of fuel elements for nuclear reactors. SUBSTANCE: tubular part is locked in fixture and compressed with plug. Assembly is heated by welding current pulse which is distributed throughout entire length of welding region. Welding force is applied. Rate of plug setting has two peak values. Rate of change of welding-current pulse energy equivalent is minimum 25 . Rate of rise of welding current pulse is minimum 1 kA/ms. EFFECT: improved quality of welds and reliability of fuel element pressurization. 2 cl, 4 dwg

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RU 2 166 215 C2

Authors

Kislitskij A.A.

Enin A.A.

Minjakov Ju.A.

Gradovich A.A.

Belov A.A.

Bibilashvili Ju.K.

Dates

2001-04-27—Published

1999-04-12—Filed