C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/128
C25D 17/02 (2006.01) C25D 7/06 (2006.01) C25D 17/10 (2006.01)
Patent
CA 1165725
ABSTRACT OF THE DISCLOSURE An apparatus for the electroplating of metal strips, and more particularly for the zinc-coating of steel strip, which comprises a tank that is filled with electrolyte liquid, and, immersed therein, at least one electrode disposed above the strip and at least one electrode disposed below the strip, both parallel thereto, wherein the electrode disposed above the strip is made of the metal to be deposited, for example, zinc, and the electrode disposed below the strip consists of a material that is insoluble in the electrolyte and is disconnectable from the current source for the purpose of one-sided electroplating. Thus, the ions necessary for coating are supplied by the consumable electrode disposed above the strip, both in one- sided and in two-sided coating. The costly working up of the electrolyte in separate equipment and the recirculating which requires additional energy are dispensed with in the apparatus of the invention. Since the electrode disposed below the strip, which is accessible only with difficulty, consists of a material that is not soluble in the electrolyte, its spacing from the strip remains unchanged, and uniform coating is therefore assured.
376729
Espenhahn Manfred
Folwaczny Manfred
Fetherstonhaugh & Co.
Thyssen Aktiengesellschaft Vorm. August Thyssen-Hutte
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