Valve metal electrode

C - Chemistry – Metallurgy – 23 – F

Patent

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Details

C23F 13/00 (2006.01) C23F 13/04 (2006.01) C23F 13/12 (2006.01) C23F 13/16 (2006.01)

Patent

CA 2226971

A novel valve metal electrode for use in an electrochemical process at an anodic current density of up to about 215 milliamps per square meter which is particularly suited for use as an anode in the cathodic protection of iron or steel bars embedded as reinforcing elements in a concrete article. The useful lifetime of the electrode at any given anodic current density can be extended by appropriate heat treatment prior to use.

Cette nouvelle électrode en métal de soupape électrochimique est utilisée dans un procédé électrochimique à une densité de courant anodique qui peut s'élever jusqu'à environ 215 milliampères par mètre carré, ce qui la rend particulièrement utile comme anode de protection cathodique de poutres en fer ou en acier noyées dans un objet en béton afin de le renforcer. La vie utile de l'électrode à n'importe quelle densité de courant anodique donnée peut être prolongée par un traitement thermique approprié avant sa mise en service.

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