Coating processes – Application to opposite sides of sheet – web – or strip
Patent
1993-03-31
1995-03-21
Beck, Shrive P.
Coating processes
Application to opposite sides of sheet, web, or strip
427321, 427329, 427349, 427406, 427 43B, 4274343, 4274345, B05D 126
Patent
active
053993764
ABSTRACT:
Method and apparatus for meniscus coating one or two sides of steel strip with a metal or metal alloy. The apparatus includes a horizontally disposed coating tray for containing molten coating metal, means for maintaining the temperature of the coating metal above the melting point of the coating metal, means for moving steel strip transversely past a departure lip positioned on one side of the coating tray and means for maintaining the level of the coating metal in the coating tray relative to the upper elevation of the departure lip so that an uninterrupted flow of the coating metal can be delivered over the departure lip to a surface of the strip. The coating tray may be rotatably mounted for adjusting the level of molten metal in the coating tray. The coating tray also may include means for lateral displacement for positioning the departure lip a predetermined distance away from the strip. The terminal end of the departure lip preferably includes a planar upper surface having an acute angle of at least 15.degree. relative to the horizontal plane of the coating tray. Non-oxidizing gas may be passed through a jet nozzle to control the coating thickness on the strip.
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Barney Gerald L.
Caudill Forrester
Flinchum Charles
Kleimeyer David L.
Parrella Larry E.
Armco Steel Company, L.P.
Bareford Katherine A.
Beck Shrive P.
Bunyard R. J.
Fillnow L. A.
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