Coating processes – Immersion or partial immersion – Molten metal or fused salt bath
Patent
1997-11-04
2000-03-14
Beck, Shrive
Coating processes
Immersion or partial immersion
Molten metal or fused salt bath
427310, 427431, 4274347, 427436, B05D 118, B05D 310
Patent
active
060370114
ABSTRACT:
A hot dip coating system comprises a bath of molten coating metal contained in a vessel having a strip passage opening located below the top surface of the bath. A metal strip is directed along a path extending through the strip passage opening and through the bath of molten coating metal, to coat the strip. A plug composed of solidified coating metal surrounds the strip downstream of the strip passage opening and is substantially stationary relative to the moving strip. The plug prevents escape of molten coating metal from the bath through the strip passage opening while permitting the strip to move along its path. Expedients are provided to chill the coating metal downstream of the strip passage opening to form and maintain the plug and to heat that part of the molten metal coating bath which is immediately downstream of the plug.
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Saucedo et al., The Principle of `Forbidden Zones` by MHD Containment of Liquid Metals, Conference Proceedings, Electromagnetic Processing of Materials, Paris, France, May 26-29, 1997, pp. 539-544.
Carter William A.
Deegan James J.
Gerber Howard L.
Kolesnichenko Anatoly F.
Martin Philip G.
Barr Michael
Beck Shrive
Inland Steel Company
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