Method for the electrophoretic dip coating of chromatizable metal surfaces
AssigneeGesellschaft fur Technische Studien Entwicklung Planung mbH
InventorRainer Huss
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Abstract
A method is described for the electrophoretic enamelling of chromatizable metal surfaces. Improved adhesion of the enamel is achieved by a chromating pretreatment of the metal surfaces, the chromated metal surfaces being kept wet from the time of their being chromated up to the time of their introduction into the bath for the electrophoretic enamelling.
Claims11
A process for electrophoretic enameling of zinc or cadmium plated chromatizable metal surfaces, which comprises chromatizing the plated surface with a chromatizing solution by a chemical treatment, then cataphoretically enameling said chromatized surface, wherein said chromatized surface is maintained wet between said chromatizing and said enameling.
Dependencies are inferred from the claim text.