Method of preparing composite aluminum material

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

1985-07-23

1987-02-17

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164 551, B22D 1900

Patent

active

046432418

ABSTRACT:
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 (K.sub.2 AlF.sub.5) by bringing a solution containing potassium ions and fluorine ions in contact with the surface of the aluminum member.

REFERENCES:
patent: 3951328 (1976-04-01), Wallace

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