Surface treatment of aluminum and its alloys

Details Surface treatment of aluminum and its alloys Surface treatment of aluminum and its alloys

C - Chemistry, Metallurgy

23

C

6/226

C23C 22/34 (2006.01) C23C 22/68 (2006.01)

Patent

CA 1240454

ABSTRACT OF THE DISCLOSURE A composition and process useful in forming films on the surface of aluminum or its alloys is disclosed. The composition is an aqueous solution containing an alkali metal, silicon; fluorine, zinc and iron. The film is an adherent hydrophilic corrosion resistant film useful as such and/or as a lubricating film in metal forming. -16-

478782

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