Surface treatment of aluminum and its alloys

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

1985-04-05

1987-03-17

Silverberg, Sam

Metal treatment

Compositions

Heat treating

148 627, C23C 2334

Patent

active

046505253

ABSTRACT:
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.

REFERENCES:
patent: 1638273 (1927-08-01), Pacz
patent: 2213263 (1940-09-01), Thompson
patent: 3592747 (1971-07-01), Cohn

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