Process for fabricating fuel rod and end plug therefor

Details Process for fabricating fuel rod and end plug therefor Process for fabricating fuel rod and end plug therefor

1993-01-04

1994-04-12

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Having particular end closure or seal

376261, G21C 310

Patent

active

053032772

ABSTRACT:
A process is presented for fabricating a fuel rod including an elongated fuel tube, a lower end plug for sealing one of the openings, and an upper end plug for sealing an opposite opening. The steps include sealing an opening of the aperture by melting the lead portion of the upper end plug in such way that welding is carried out along the lead portion and a welded portion formed by the welding is disposed below the lower portion of the chamfer. The elongated fuel tube has openings at opposite end thereof, and a plurality of fuel pellets inserted therein. The upper end plug has an end face and an outer peripheral surface, a chamfer formed at an intersection between the end face and the outer peripheral surface, an aperture formed in the center of the upper end plug, a groove formed around the aperture, and a lead portion formed between the aperture and the groove.

REFERENCES:
patent: 4003788 (1977-01-01), Boyko et al.
patent: 4865804 (1989-09-01), McGeary et al.
patent: 5158740 (1992-10-01), Boatwright

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