FIELD: metallurgy.
SUBSTANCE: possibility of obtaining a fragmented structure of metal with high density of dislocations is provided due to the fact that cold rolling of a strip is performed in rolls with roughness of 6.0-12.0 mcm Ra, the peripheral speed of which is set based on the following condition: V1≥2V2, where V1 - peripheral speed of the first roll, m/s; V2 - peripheral speed of the second roll, m/s. Rolling is performed with a single deformation degree of at least 50% till total deformation degree is 75-95%.
EFFECT: improving strength properties.
1 dwg, 1 tbl
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