Method of preparing composite aluminum material

Details Method of preparing composite aluminum material Method of preparing composite aluminum material

B - Operations, Transporting

22

D

117/93

B22D 19/00 (2006.01)

Patent

CA 1237346

ABSTRACT OF THE DISCLOSURE A method of preparing a composite aluminum material to be formed integrally by bonding aluminum or aluminum alloy to an aluminum or aluminum alloy member which is formed in advance in a specified shape by the method of internal chill, etc. The method comprises the steps of forming a chemical conversion coating of pentafluoroaluminate (K2AlF5) by bringing a solution containing potassium and fluorine in contact with the surface of the aluminum member.

487627

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