Method and apparatus for cleaning a liquid metal bath for hot dipping of a steel strip
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United States of America Patent
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Jan 28, 1992
Grant Date -
N/A
app pub date -
Nov 21, 1990
filing date -
Nov 21, 1989
priority date (Note) -
Expired
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Abstract
The present invention relates to a method for cleaning a liquid metal bath, in particular a zinc or zinc-aluminum bath intended for the continuous production of a steel strip coated by immersion in a coating zone (5a), according to which method the metal coating bath (2) is cycled continuously between the coating zone (5a) and a cleaning zone (5b), the rise of solid intermetallic compounds contained in the said bath to the surface is brought about in the cleaning zone (5b), the rise of the said compounds in accelerated and the cleaned bath (2), the iron content of which is close to or below the solubility limit, is led back to the zone (5a). The invention also relates to an apparatus for carrying out the method.
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