Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...
Patent
1995-12-06
1997-12-30
Utech, Benjamin
Coating apparatus
With means to apply electrical and/or radiant energy to work...
Electrostatic and/or electromagnetic attraction or...
118638, 118404, 118417, B05B 5025
Patent
active
057025282
ABSTRACT:
The invention is directed to a process and apparatus for coating the surf of elongated materials, in particular steel strips, with a metallic coating. The material is guided in one direction through a tank holding the molten coating material. The tank has a through-duct surrounded by an electric field below the surface of the molten bath. An electromagnetic force is generated in the region where the through-duct opens into the melt, which electromagnetic force is equal to or greater than the metallostatic pressure, directed oppositely thereto vectorially and quantitatively proportional to the product of the cross-sectional area of the inlet opening and the metallostatic pressure, and in which the dwell of the strip in the melt can be controlled independently of the rate of feed of the strip. The molten is constantly moved against the surface of the elongated material while the elongated material passes through it; and the molten material is circulated in a closed system, without contact to oxygen in the atmosphere.
REFERENCES:
patent: 3538884 (1970-11-01), Carreker, Jr.
patent: 4169426 (1979-10-01), Kornmann et al.
patent: 5084094 (1992-01-01), Francois et al.
Birger Boris L.
Frommann Klaus
Haupt Werner
Moroz Anatolij I.
Ottersbach Walter
I.P. Bardin Central Research Institute of Iron and Steel Industr
Mannesmann Aktiengesellschaft
SKB MGD, Institute of Physics
Utech Benjamin
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