Method for fabricating end plugs for nuclear fuel rods

Details Method for fabricating end plugs for nuclear fuel rods Method for fabricating end plugs for nuclear fuel rods

1994-09-29

1999-10-19

Crane, Daniel C.

Metal deforming

With cutting

Severing a discrete piece from stock, work, or product

72340, 72203, B21D 2800, B21D 5300

Patent

active

059669802

ABSTRACT:
The process includes hot-forming a large diameter Zircaloy ingot to a flat plate having longitudinal, transverse and depth dimensions and forming blanks in a transverse direction from the flat plate for ultimately forming the end plugs of a nuclear fuel rod. The axis of the end plugs is generally transverse to the longitudinal dimensions of the flat plate whereby centerline defects in the blank are reduced or eliminated. To the extent centerline defects occur, they lie generally transverse to the axis of the end plug whereby the defects are rendered ineffective to form leakage paths through the end plugs.

REFERENCES:
patent: 3699638 (1972-10-01), Van Dievoet
patent: 3804708 (1974-04-01), Nilson
patent: 4717427 (1988-01-01), Morel
patent: 4751045 (1988-06-01), Foster

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