Process for treating the surfaces of aluminum heat exchangers

Details Process for treating the surfaces of aluminum heat exchangers Process for treating the surfaces of aluminum heat exchangers

1982-06-28

1983-12-20

Beck, Shrive P.

Coating processes

Solid particles or fibers applied

Applying superposed diverse coatings or coating a coated base

165133, 428325, 428450, 4273977, 427409, B05D 504

Patent

active

044217897

ABSTRACT:
A method for the treatment of aluminum surfaces to provide them with a corrosion resistant, hydrophilic coating. The aluminum surfaces are first provided with a corrosion-resistant film and, thereafter, a coating of fine silica particles is applied to the corrosion resistant film. Suitable corrosion resistant films which may be used are anodized films, boehmite films, chromated films and organic resin films. The coated aluminum surfaces produced by this method are found to have particular application for aluminum heat exchangers.

REFERENCES:
patent: 2298079 (1942-10-01), Adams et al.
patent: 3181461 (1965-05-01), Fromson
patent: 3279316 (1966-10-01), Penton et al.
patent: 3973510 (1976-08-01), McCulloch
patent: 4054467 (1977-10-01), Mikelsons
patent: 4074010 (1978-02-01), Knight
patent: 4211276 (1980-07-01), Itoh et al.

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