FIELD: process engineering.
SUBSTANCE: invention aims at improving flatness and/or roughness of metal strip. Proposed method comprises applying lubricants 100 on surface of metal strip 400 at cold rolling stand outlet by proportioning, at least, one lubricant on metal strip surface per unit time. Amount of lubricant to be applied is regulated by distributing lubricant flow rate over strip width per unit time depending upon preset mismatch between actual and preset flatness of metal strip, or depending on preset mismatch between actual and preset roughness of metal strip over its entire length, or depending on combination of said mismatches. Proposed device (versions) comprises appropriate equipment.
EFFECT: improved characteristics of metal strip.
45 cl, 3 dwg
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