Phosphatation of metallic surfaces

Details Phosphatation of metallic surfaces Phosphatation of metallic surfaces

C - Chemistry, Metallurgy

23

C

148/17

C23C 22/68 (2006.01) C23C 22/42 (2006.01)

Patent

CA 1071070

ABSTRACT OF THE DISCLOSURE A treatment of iron or steel surfaces to give them enhanced anti-corrosive and paint-retaining characteristics comprises the application, by spraying, dipping or other- wise, of a composition in the form of a solution of phosphates which includes an accelerating agent represented by a quantity of tungstate ion and which has a pH value in the range 5.8 to 6.5, and preferably 6.0 to 6.4.

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