Fabrication procedure for a cross-bracing grid for a fuel assemb

Details Fabrication procedure for a cross-bracing grid for a fuel assemb Fabrication procedure for a cross-bracing grid for a fuel assemb

1988-08-24

1990-04-17

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

148 115F, C22F 118

Patent

active

049187104

ABSTRACT:
A zirconium alloy sheet containing 2 to 3% of niobium is cooled at a controlled and moderate rate to the .alpha.+.beta. state. Plates (2, 2') are cut from the cooled sheet and cold-formed. The grid (1) is assembled from the plates (2, 2') which are welded together and the completed grid is then returned to the .alpha. phase by heating at a temperature of between 400.degree. and 550.degree. C. for a period of ten to thirty hours.

REFERENCES:
patent: 4360389 (1982-11-01), Urquhart
patent: 4584030 (1986-04-01), McDonald
patent: 4717427 (1988-01-01), Morel

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