Component made of an aluminium silicon cast alloy

Details Component made of an aluminium silicon cast alloy Component made of an aluminium silicon cast alloy

1998-11-09

2000-03-21

Speer, Timothy M.

Stock material or miscellaneous articles

Composite

Of metal

428450, 4284722, 192 30R, B32B 900

Patent

active

060400595

ABSTRACT:
A component (17) made of an aluminum silicon cast alloy whose surface is at least partly subjected to an anodic treatment to produce an oxide layer, which component comprises, prior to the anodic treatment, a surface-proximate deformation zone (4) configured as a homogeneous zone in which the silicon is uniformly distributed in the .alpha.-mixed crystal (1) and due to this homogeneous mixing of aluminum and silicon, the differing electric conductivities of the original structural constituents (.alpha.-mixed crystal, eutectic) are replaced by a uniform electric conductivity so that uniform oxide layers can grow during the anodizing process.

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Aluminium-Taschenbuch, Aluminum-Verlag GmbH, Dusseldorf 1974, 13 Aufl., pp. 333-342, 378-379, 693-696.
K. Taguchi, "Production . . . Anodizing", Patent Abstracts of Japan, vol. 15, No. 167, Apr. 26, 1991, C-827, Abstract No. 3-36245.
S. Furuya, "Manufacture . . . Acid Bath", Patent Absracts of Japan vol. 18, No. 97, Feb. 17, 1994, C-1167, Abstract No. 5-295494.

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