METHOD OF PLANISHING ANNEALED STEEL STRIP Russian patent published in 2012 - IPC B21B1/28 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly, to plate rolling and may be used in production of high surface quality cold-rolled sheet steel. Proposed method comprises strip rolling with relative reduction of 0.5-3.0% in rolls with specified roughness and applying front and rear tension to strip. Note here that rear tension is set subject to relation: where T₀, T₁ is rear and front tension, respectively, kgf; p is normal rolling pressure, kgf/mm²; B is strip width, mm; R is roll radius, mm; is grip angle, rad; ΔH is absolute reduction, mm; β=arctgf is friction angle, rad; f is friction coefficient.

EFFECT: reduction in surface roughness anisotropy.

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