Electrobrightening of aluminium and aluminium-base alloys

Details Electrobrightening of aluminium and aluminium-base alloys Electrobrightening of aluminium and aluminium-base alloys

1979-09-07

1981-01-27

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25F 316, C25F 320

Patent

active

042473780

ABSTRACT:
A direct current electrobrightening process for aluminium and aluminium base alloy components capable of producing specular reflectivity values in excess of 80% in alloys down to 99.5% purity by maintaining the electrolyte with a pH of 9 to 10.7, as at a temperature of 70.degree. C., and dispersing local products of reaction and depleted solution from the components at a rate that enables the current density to increase automatically by a factor of 2 to 4.

REFERENCES:
patent: 2096309 (1937-10-01), Pullen
patent: 2339806 (1944-01-01), Pullen
Metal Finishing Guidebook Directory, 36th Edition, 1968, pp. 479-503.

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