Coating processes – Applying superposed diverse coating or coating a coated base – Metal coating
Patent
1994-11-18
1996-04-30
Utech, Benjamin
Coating processes
Applying superposed diverse coating or coating a coated base
Metal coating
427431, 4274342, 427436, 118423, 118429, B05D 136
Patent
active
055123210
ABSTRACT:
The invention is directed to a process for coating elongated metallic matal, particularly strip or wire, with multiple layers by applying different layers of metallic coating materials while the material to be coated travels continuously through an installation having a plurality of dip baths of molten coating materials which are arranged one after the other.
In order to produce new corrosion-resistant coatings with improved properties and improved surfaces, the invention provides that the elongated metallic material is guided in a straight line through the installation so as to be regulated in temperature via the adjustable bath temperatures of the different molten coating materials. The device used for this purpose is characterized by a plurality of treatment tanks (4a, 4b) arranged in series and having through-ducts (12) for the elongated metallic material (B) below the surface (h) of the dip bath, the through-ducts (12) being closed by magnetohydrodynamic seals (13).
REFERENCES:
patent: 4607682 (1986-08-01), Pantzig et al.
patent: 4844147 (1989-07-01), Tominaga et al.
patent: 5261611 (1993-11-01), Huxford
Birger Boris L.
Moroz Anatolij I.
Paramonov Vladimir A.
Tychinin Anatolij I.
I.P. Bardin Central Research Institute of Iron and Steel Industr
Mannesmann Aktiengesellschaft
SKB MGD, Institute of Physics
Utech Benjamin
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