MANUFACTURING METHOD OF COLD-ROLLED STRIP STEEL Russian patent published in 2009 - IPC B21B1/22 

Abstract RU 2360747 C1

FIELD: metallurgy.

SUBSTANCE: method includes hot rolling with specified temperature conditions, cold rolling with following annealing and temper rolling of coiled strips. Blank of thickness 2.2…2.6 mm is received by means of rolling on continuous rolling mill at temperature in its sixth mill, equal to 1060…1100°C, with finishing temperature 865…895°C and winding temperature 560…600°C, cold rolling is implemented up to thickness 0.7…0.9 mm, and temper rolling of cold-rolled strips after annealing in furnaces with hydrogenous or nitrogenous atmosphere is implemented with cobbing in limits 1.0±0.1%.

EFFECT: guaranteed increased resistance to steel aging.

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RU 2 360 747 C1

Authors

Lisichkina Klavdija Andreevna

Kornilov Vladimir Leonidovich

Gorbunov Andrej Viktorovich

Kochneva Tat'Jana Mikhajlovna

Antipanov Vadim Grigor'Evich

Malova Nina Ivanovna

Dates

2009-07-10Published

2008-01-23Filed