Method and apparatus for coating alkali or alkaline earth...

Details Method and apparatus for coating alkali or alkaline earth... Method and apparatus for coating alkali or alkaline earth...

C - Chemistry, Metallurgy

23

C

C23C 2/00 (2006.01) B05C 1/08 (2006.01)

Patent

CA 2111443

2111443 9222382 PCTABS00018 A process and apparatus therefore for forming a layer of metal on a substrate which comprises the steps of: forming a bath of a molten metal in a vessel (18); circulating the molten metal in the vessel (18) such that the molten metal is projected in the form of a standing wave (22) above the upper surface of the vessel; transporting a substrate (14) along a path which traverses the upper surface of the vessel (18); and transferring the projected molten metal to one surface of the substrate either directly by directly contacting the projected molten metal with the surface of the substrate or indirectly by transferring the projected metal to a transfer roll (24) which in turn transfers the molten metal to substrate (14) which is in contact with the roll (24). The thickness of the metal coating is controlled by means of a horizontally and vertically adjustable chilling roll (26) contacting the uncoated surface of the substrate (14).

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