METHOD FOR PREPARING HOT-ROLLED SEMIFINISHED STEEL ROLLED STOCK FOR COLD ROLLING Russian patent published in 2016 - IPC B21B45/04 

FIELD: technological processes; metallurgy.

SUBSTANCE: invention relates to pressure treatment of metals and can be used for preparing hot-rolled semifinished steel rolled stock in the production of a cold-rolled steel strip. Method for preparing hot-rolled semifinished steel rolled stock for cold rolling comprises removal of scale from the surface by pre-roll cold rolling semifinished steel rolled stock in rolling mill rolls with preset reduction, pre-roll cold rolling semifinished steel rolled stock is carried out in the rolling mill rolls with reduction of 12-35 % with reduction and deformation source length ratio of 3.8±0.5 %/mm.

EFFECT: technical result is complete removal of scale from the surface of the semi-finished rolled stock at pre-roll cold rolling semifinished steel rolled stock for eliminating polluting etching process and reducing its cost.

4 cl, 1 ex