Abstract: A method for manufacturing colored metal sheet or coil at a high speed according to the principle of a two coating- one baking method, in which a primer coat is formed at a high speed by an electrodepositing coating and a final coat is formed by the painting of a finishing paint, which is polymerizable by electron beams and then the coated metal sheet or coil is subjected to an electron beaming, whereby a colored metal sheet having two coatings which are hardened by electron beams and excellent in anticorrosiveness and workability may be obtained at a high speed.

Abstract: A method for electroplating a metal strip to be plated includes continuously running the metal strip through the interior of a plating vessel of a cylindrical form having a rectangular cross section, the upper and lower walls of such vessel being constructed of an insoluble anode material which is to function as an anode, and compulsively circulating a plating solution in a direction counter to the running direction of the metal strip within the plating vessel and an apparatus for carrying out the same, whereby a high speed plating is performed and the replacement of the anodes can be minimized.