Process for manufacturing a microfilter

Details Process for manufacturing a microfilter Process for manufacturing a microfilter

C - Chemistry, Metallurgy

25

F

204/20, 204/86.5

C25F 3/04 (2006.01) B01D 67/00 (2006.01) B01D 71/02 (2006.01)

Patent

CA 1315731

ABSTRACT A process for manufacturing a microfilter is such that a foil having an aluminum content of at least 99.95% and thickness 20-250 µm is given a recrystallizing anneal, is etched in an electrolyte in stages at constant current density in the range 0.1 to 2 kA/m2, and the surface given a stabilizing after-treatment to prevent hydration reactions.

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