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AssigneeHoogovens Groep B.V.
InventorsLeonard J. J. Janssen, Gijsbertus C. Van Haastrecht
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In the electrolytic metal coating of a strip-shape metal substrate, the substrate is passed in a continuous process as cathode through an electrolytic coating apparatus having an insoluble anode, the cathode and anode being connected to an external voltage source so that metal ions are deposited onto the substrate from an acidic electrolyte between the cathode and anode. To increase the anode service life and reduce power consumption, a hydrogen-providing gas, e.g. molecular hydrogen, is fed to the anode and a catalyst is available at the anode, so that under the influence of the catalyst electrons and hydrogen ions are formed from said hydrogen-providing gas, the hydrogen ions passing into the electrolyte.
Method of electrolytic metal coating of a strip-shape metal substrate, comprising the steps of
Apparatus for the electrolytic metal coating of a strip-shape metal substrate, comprising an insoluble anode, means for moving a strip-shape metal substrate as cathode past the anode so that said anode and cathode provide a space between them for electrolyte, means for applying a voltage to said anode and cathode, means for feeding a hydrogen-providing gas to said anode and catalyst material at said anode for formation of electrons and hydrogen ions from said gas during electrolysis.
Dependencies are inferred from the claim text.