C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/97.08, 204/1
C25D 13/14 (2006.01) C25D 13/04 (2006.01) C25D 17/06 (2006.01)
Patent
CA 2030033
Anodic or cathodic electro-coating of hollow bodies, in particular cans, such as soft drink cans or the like, is done by means of a water soluble lacquer as electrolytic liquid which comes into contact with the cathode (or anode) and which is conducted to the surface of the hollow body that constitutes the anode (or cathode) in at least one uninterrupted stream that forms a conductive connection. In order to be able to coat a large number of hollow bodies per unit time using a process of this kind, the present invention proposes that the hollow bodies (1) are moved with their openings (3) downwards across an electrically conductive grid (4), while the lacquer is sprayed through the unobstructed intervening spaces between the bars that make up the grid or frame in streams that rise into or over the hollow bodies, so that their whole inside and outside surfaces are covered with an unbroken coating.
Fetherstonhaugh & Co.
Plm Berlin Dosenwerk Gmbh
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