Chemistry: electrical and wave energy – Processes and products
Patent
1990-08-17
1991-11-19
Niebling, John
Chemistry: electrical and wave energy
Processes and products
204 33, C25D 1114
Patent
active
050663682
ABSTRACT:
A process for producing electronic package components from an aluminum alloy is disclosed. The components have a black color through integral color anodization. The desired color, thickness and surface finish are achieved by regulation of amperage during anodization. The amperage is rapidly raised to in excess of 70 amps per square foot and then allowed to gradually decrease as a function of oxide growth while the voltage is maintained in excess of 70 volts.
REFERENCES:
patent: 3031387 (1962-04-01), Deal e al.
patent: 3328274 (1967-06-01), Bushey et al.
patent: 3423298 (1969-01-01), Michelson et al.
patent: 3597339 (1971-08-01), Newman et al.
patent: 3616311 (1971-10-01), Barkman et al.
patent: 3639221 (1972-02-01), Dorsey, Jr.
patent: 3669855 (1972-06-01), Smith
patent: 3708407 (1973-01-01), Newman et al.
patent: 3714000 (1973-01-01), Dorsey, Jr.
patent: 3833484 (1974-09-01), Yanagida et al.
patent: 3860503 (1975-01-01), Ikegaya et al.
patent: 3945895 (1976-03-01), Osuga et al.
patent: 4026781 (1977-05-01), Newman et al.
patent: 4100041 (1978-07-01), Kimura et al.
patent: 4898651 (1990-02-01), Mahmoud
patent: 4931151 (1990-06-01), Srinivasan et al.
patent: 4939316 (1990-07-01), Mahulikar et al.
H. Silman et al., Protective and Decorative Coatings for Metals, Finishing Publications Ltd., Teddington, Middlesex, England, 1978, pp. 456-459.
Silman et al., Protective and Decorative Coatings for Metals, published by Finishings, Ltd. Middlesex, England (1978) at pp. 460-463.
Neufeld et al., The Development of Pore and Cellular Structures in Anodic A1203 Films, appearing in the Transactions of the Institute of Metal Finishing, vol. 48, Part 5 (winter 1970) at pp. 175-181.
Anodizing Processes appearing in Metals Handbook, Ninth Edition, vol. 5, entitled, "Surface Cleaning, Finishing, and Coating", (1982), pp. 585-597
Brock Andrew J.
Jalota Satish K.
Mahulikar Deepak
Pasqualoni Anthony M.
Leader William T.
Niebling John
Olin Corporation
Rosenblatt Gregory S.
Weinstein Paul
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