Cathodic protection anode and systems

Details Cathodic protection anode and systems Cathodic protection anode and systems

C - Chemistry, Metallurgy

23

F

C23F 13/10 (2006.01) C23F 13/16 (2006.01)

Patent

CA 2122758

ABSTRACT OF THE DISCLOSURE A continuous length anode is formed of relatively small valve metal wire 40 having a electrocatalytic coating 42 braided into a highly flexible ribbon. The wire 40 may be copper cored. The valve metal 41 is preferably titanium, although tantalum or niobium are also preferred. The coating 42 is preferably a mixed metal oxide coating. The braid is formed from wire sizes of from about .159 cm or lessto about .3175 cm in diameter and the braided ribbon may be about .254 cm to about 15.24 cm wide. Four system applications are disclosed, two for steel reinforced concrete 60 and 80, one for a tank bottom 90, and one for a buried pipe 120. The braided anode may be used in combination with valve metal ribbon or bar 67 and 68 and may readily be electrically connected to power feeds or to itself by spot weld or crimp connections 252 and 253. Power feeds may be connected at a butt end or anywhere along the length of the braid.

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