METHOD OF MANUFACTURE OF THE FLAT SHAPE MADE OUT OF THE ZIRCONIUM ALLOYS Russian patent published in 2007 - IPC C22F1/18 B21B3/00 

FIELD: metallurgy industry; chemical industry; oil-and-gas industry; methods of manufacture of the flat shape made out of the zirconium alloys.

SUBSTANCE: the invention is pertaining to the field of metallurgy and may be used at manufacture of the flat shape applied in the chemical industry and oil and gas industry in the capacity of the structural material in the active zones of the atomic reactors. The billet produced from the ingot by the hot molding is subjected to the thermal treatment and mechanical working. The thermal treatment conduct at the temperature of presence of the field of (alfa+beta)-zirconium within the time interval of 1-3 hours and refrigerating with the speed of not less than 5°C/minute. This thermal treatment may be conducted at the temperature of no less than 800°С. Then exercise the hot rolling, the intermediate thermal treatment, the cold rolling and the final thermal treatment. The hot rolling may be conducted at the temperature not exceeding the temperature of the processing heat treatment. As a result the invention ensures reduction of the prime cost of the manufactured products at the simultaneous increase of stability of their mechanical properties and the technological effectiveness of the alloy.

EFFECT: the invention ensures reduction of the prime cost of the manufactured products at the simultaneous increase of stability of their mechanical properties and the technological effectiveness of the alloy.

3 cl, 3 dwg, 2 ex, 1 tbl