METHOD OF THIN STEEL STRIP CONTINUOUS COLD ROLLING Russian patent published in 2014 - IPC B21B1/22 

FIELD: process engineering.

SUBSTANCE: decreased lengthwise gage interference of 1.6-2.8 mm thick steel strips rolled to final thickness of 0.36-0.7 mm at their width of 1100-1282 mm is ensured by performing the rolling provided the following inequality is observed: $$\raisebox{1ex}{$\Delta Q$}\!\left/ \!\raisebox{-1ex}{$P$}\right.$$ ≤0.32 or $$\raisebox{1ex}{$\Delta Q$}\!\left/ \!\raisebox{-1ex}{$P$}\right.$$ ≥0.44 where ΔQ by modulus is defined by the formula: ΔQ=|Q_rear-Q_front| where Q_rear is preset rear tension, N; Q_front preset front tension, N; P is rolling force, N.

EFFECT: higher quality of cold-rolled strips made at wide-strip five-stand mill 2000.

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