Method of cleaning an aluminum surface by plasma treatment

Details Method of cleaning an aluminum surface by plasma treatment Method of cleaning an aluminum surface by plasma treatment

1993-12-06

1996-07-02

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912144, 21912159, 21912155, 20429831, 134 11, B23K 1000

Patent

active

055324479

ABSTRACT:
A method of cleaning an aluminum surface includes treating the surface by cold plasma process employing a mixture of about 30 to 70 percent oxygen by volume and about 30 to 70 percent freon by volume and preferably about 40 to 60 percent by volume of each constituent gas. Performance is enhanced by employing particular wattage and flow rates. The process also produces a water wettable surface and a hydration resistant surface. The process will effect such conversions without substantial etching of the aluminum surface.

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