Method for preventing corrosion at a filled girthweld...

Details Method for preventing corrosion at a filled girthweld... Method for preventing corrosion at a filled girthweld...

C - Chemistry, Metallurgy

23

F

204/88.5

C23F 11/10 (2006.01) F16L 58/10 (2006.01)

Patent

CA 1239901

ABSTRACT OF THE DISCLOSURE The invention is a method for protecting from corrosion the filled girthweld cutback area of a concrete coated pipe, otherwise protected against corrosion by cathodic means. The method comprises coating the girthweld cutback area, after welding but prior to the filling operation, with an electroconductive film.

462561

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