Aluminum alloys for forming colored anodic oxide films thereon a

Details Aluminum alloys for forming colored anodic oxide films thereon a Aluminum alloys for forming colored anodic oxide films thereon a

1991-07-09

1992-05-05

Dean, H.

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148437, 148440, 420544, 420548, 420549, 420550, 205325, C22F 104, C22C 2102

Patent

active

051103710

ABSTRACT:
An aluminum alloy consists of, by weight, from 0.08 to 0.50 percent silicon, from 0.15 to 0.90 percent iron, the weight ratio of iron to silicon being from 1.4 to 2.2, and the remainder aluminum, intermetallic compounds of .alpha.-type Al-Fe-Si system being contained in the alloy. A light gray oxide film is formed on the alloy by anodic treatment.

REFERENCES:
patent: 4836863 (1989-06-01), Matsuo et al.

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