METHOD OF FABRICATING SEMI-FINISHED PRODUCT OUT OF ZIRCONIUM ALLOY AND IMPLEMENTATION OF SEMI-FINISHED PRODUCT Russian patent published in 2008 - IPC C22F1/18 G21C3/04

Abstract RU 2337176 C2

FIELD: metallurgy.

SUBSTANCE: ingot 1 of big size - with diameter of 400-700 mm and length of 2-3 m is produced by means of casting. Forging of ingot 1 for fabricating semi-finished product 3 is performed in two stages. The first stage of forging ingot 1 is carried out at temperature corresponding to region of existing of α- and β-phases. Temperature of forging can be for example within range from 850°C to 950°C. Fabricated semi-finished products are used for production of tube component of fuel assembly out of rod or stock such as tube shell or guiding tube of fuel assembly of nuclear reactor cooled with water or component of fuel assembly of CANDU reactor and also for producing rod of smaller diameter for plugs, closing ends of tube shells of rods of fuel assemblies of nuclear reactors.

EFFECT: invention facilitates simplification and reduction of cost of items fabrication.

10 cl, 1 dwg

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RU 2 337 176 C2

Authors

Barberi P'Er

Rizzi Noehl'

Robbe Ksav'Er

Dates

2008-10-27—Published

2004-01-07—Filed