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METHOD FOR ELECTRODEPOSITION OF CHROMIUM CONTAINING COATINGS FROM TRIVALENT CHROMIUM BASED ELECTROLYTES

机译:从三价铬基电解质中电沉积含铬涂层的方法

摘要

This invention relates to a method for electrodeposition of a chromium containing metal coating on an electrically conductive object from a trivalent chromium based electrolyte wherein the object acts as the cathode and wherein at least one hydrogen gas diffusion anode (GDA) is used, at which anode hydrogen gas is oxidised thereby preventing the occurrence of undesirable oxidation reactions which occur at a higher anodic overpotential when using an anode at which water is oxidised to oxygen and to the use thereof.
机译:本发明涉及一种由三价铬基电解质在导电物体上电沉积含铬金属涂层的方法,其中该物体充当阴极,并且其中使用至少一个氢气扩散阳极(GDA),在该阳极处氢气被氧化,从而防止了在使用将水氧化成氧气的阳极及其使用时在较高的阳极过电势下发生的不良氧化反应的发生。

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