Anodizing method and apparatus for performing the same

Details Anodizing method and apparatus for performing the same Anodizing method and apparatus for performing the same

C - Chemistry, Metallurgy

25

D

C25D 11/02 (2006.01) C25D 5/00 (2006.01) C25D 11/04 (2006.01) C25D 21/10 (2006.01)

Patent

CA 2302916

An anodizing treatment process is performed while the following apparatuses (A) to (D) are simultaneously operated: (A) a vibrationally fluidly stirring apparatus for the~ treatment bath, in which a vibration vane is vibrated at an amplitude of 0.5 to 3.0 mm and at a vibrational frequency of 200 to 800 times per minute to generate vibrational flow in the treatment bath; (B) an aeration apparatus for the treatment bath, which comprises a ceramic diffusing pipe having a pore-size of 10 to 400 µ m and porosity of 30 to 40 %;~ (C) an apparatus for applying vibration to the metal body through an electrode bar on which the metal body is hung in an amplitude from 0.5 to 1.0 mm and at a frequency of 100 to 300 times per minute; and (D) an apparatus for swinging an electrode bar for suspending the metal body thereon, which generates a swinging motion of the metal body at a swinging amplitude of 10 to 100 mm and a frequency of 10 to 30 times per minute through the electrode bar.

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