CPC B08B 3/08 (2013.01) [B08B 1/002 (2013.01); B08B 7/04 (2013.01); B08B 13/00 (2013.01); B21B 45/0275 (2013.01)] | 14 Claims |
1. A method for cleaning rolls used in metal strip processing, comprising:
first cleaning a roll surface of a roll with a first alkaline washing liquid comprising an aqueous alkali metal hydroxide or an alkaline earth metal hydroxide,
second cleaning the roll surface with at least one second alkaline washing liquid comprising an aqueous alkali metal hydroxide or an alkaline earth metal hydroxide, whereby the first alkaline washing liquid has a higher concentration of hydroxide ions than the at least one second alkaline washing liquid, rinsing the roll surface with water upon completion of the first cleaning and the second cleaning.
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