Roller cleaning method and roller cleaning machine
AssigneeHydro Aluminum Rolled Products GmbH
InventorsKathrin Eckhard, Olaf Güßgen, Frank Hirschmann
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Abstract
A method for cleaning rollers used for metal strip processing. According to said method, the roller surface is cleaned by an aqueous alkali metal hydroxide or alkaline earth metal hydroxide washing liquid or an acidic washing liquid, the washing liquid is removed and the roller surface is dried. A machine for cleaning rollers includes a washing frame designed for positioning a roller to be cleaned, and at least one means for applying at least one washing solution to the roller surface of the roller to be cleaned.
Claims14
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.
The method according to gclaim 1, wherein the first and/or the at least one second alkaline washing liquid contains a degreasing agent.
Dependencies are inferred from the claim text.