NUCLEAR REACTOR FUEL ELEMENT PLUG Russian patent published in 2007 - IPC B23K11/02 G21C3/00 

FIELD: nuclear engineering; fuel elements of nuclear reactors.

SUBSTANCE: proposed fuel element plug has section welded deep into can, its diameter being smaller than outer diameter of can but greater than its inner diameter; it also has end cap. The latter has surface for supplying welding current and applying force. End cap diameter is not smaller than that of fuel element can. Annular drilling is disposed between part to be welded in and surface for supplying welding current. End surface of annular drilling crosses surface of section being welded in. Diameter of annular drilling ranges between diametric dimensions of adjacent sections of plug.

EFFECT: reduced hydraulic resistance to coolant flow in reactor, facilitated manufacture, universal mechanical design.

1 cl, 3 dwg