METHOD OF PRODUCTION OF STRIPS FROM HIGH-CARBON AND ALLOY STEELS Russian patent published in 2023 - IPC B21B1/22 B21B3/00 B21B37/46 

FIELD: production of steels.

SUBSTANCE: production of strips of high carbon and alloy steels. Preparatory operations are carried out, preliminary annealing of hot-rolled sheet blanks, cold rolling in several passes on the mill, final annealing, temper rolling and finishing operations. Cold rolling on the mill in the second pass is carried out at the following ratio of circumferential speeds of the rolls: V₂/V₁ = 1.15-1.25, where V₂ is the peripheral speed of the lower work roll, V₁ is the peripheral speed of the upper work roll. Single reduction in the second pass is ε=28-40%, and the total reduction is not less than 60-75%.

EFFECT: conditions for rolling the strip without intermediate annealing are provided.

1 cl, 1 tbl, 1 ex