COILING METHOD AFTER LENGTHWISE UNREELING OF COLD ROLLED STEEL STRIP Russian patent published in 2008 - IPC B21C47/00 

FIELD: processes for finishing rolled sheets and strips, namely method for coiling after lengthwise unreeling of cold rolled steel strips.

SUBSTANCE: method comprises steps of creating predetermined total tension T of produced strips; at coiling strips with thickness h < 0.8 mm, 0.9 mm, 1.0 mm, 1.2 - 1.4 mm and H > 1.4 mm and with initial width equal to or exceeding respectively 1.7 m, 1.6 m, 1.4 m, 1.3 m, 1.25 m and 1.0 m setting maximum tension value being the same for all strips T max = 11.28 (h min + H max)/2 x (B min + B max)/2, kN, where h min, B min, H max, B max - minimum and maximum values respectively of thickness and width of initial strips; for steel with said thickness values but no more than 1.4 mm and with less width setting where h¹ -strip thickness, mm; B -initial width of strips, m.

EFFECT: improved quality of metal strips and sheets due to lowered number of flaws at coiling strips to coils after their cutting.

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