Flat-rolled steel strip continuous cleansing methods

Details Flat-rolled steel strip continuous cleansing methods Flat-rolled steel strip continuous cleansing methods

1996-11-22

1998-07-07

Pyon, Harold Y.

Cleaning and liquid contact with solids

Processes

Longitudinally traveling work of bar, strip, strand, sheet...

134 10, 134 64R, 134109, 266102, 266111, 266112, 118 67, 118 68, 118405, 118419, 118610, 118623, B08B 102

Patent

active

057762589

ABSTRACT:
In-line flat-rolled steel cleansing and finishing methods and apparatus are disclosed which enable flat-rolled steel, as supplied with surface areas contaminated with iron fines and other debris from gauge reduction operations, to be continuously processed in-line, free of interruptions for cleansing purposes. Continuous-strip methods and apparatus are disclosed which enable in-line continuous-strip cleansing in a manner which decreases iron fines carried by strip surfaces to a desired level while providing for continuous uniform cleansing. Carry-over of iron fines from the cleansing operations so decreases such that iron content of a coating means is decreased resulting in improved corrosion-protection coating. Diminishing iron content in a hot-dip galvanizing bath increases efficiency of aluminum additions and diminishes iron-aluminum dross.

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patent: 4784169 (1988-11-01), Striedieck
patent: 5116447 (1992-05-01), Kimura et al.
patent: 5179967 (1993-01-01), Mattiussi

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