METHOD OF COLD ROLLING OF STRIP STEEL FOR ZINC PLATING Russian patent published in 2009 - IPC B21B1/36 

FIELD: metallurgy.

SUBSTANCE: method includes strips clamping of width B for finite thickness h at desired value of total clamping ε. High flatness of strips, and also increasing of etching lines productivity is provided ensured by, rolling on reversible double-stand rolling mill of strips made of steel with carbon content less than 0.02 wt % at B₁-1.03…1.25 m value ε is accepted equal to: ε₁=84.5-13.9 h, %, where h-in mm, at B₃=1.251…1.4 m - ε₂=(0.975…0.99) ε₁ and at B₃>1.4 m - ε₃=(0.94…0.97) ε₁.

EFFECT: flatness increasing of zinced strips.

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