Apparatus and methods for sealing end plugs for nuclear fuel rod

Details Apparatus and methods for sealing end plugs for nuclear fuel rod Apparatus and methods for sealing end plugs for nuclear fuel rod

1996-03-11

1998-05-05

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

Fuel component

376451, 21912164, 21912182, G21C 310

Patent

active

057486913

ABSTRACT:
End plugs for nuclear fuel rods are provided with a spot weld along the interior end face of the end plugs to seal any streamer openings or passages along the axis of the end plugs, thereby maintaining the fuel rods sealed at its opposite ends. The spot welds are applied by an automated laser welding system in which pallets of end plugs are supported on X-Y positioning tables below a laser movable in a vertical direction. By successively locating the end plugs in the pallet below the laser, the spot welds are formed along the axis of the end plugs and along the interior faces thereof sealing the end plugs.

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