HD Series / HDR Series / HG Series
Anodization
Etched Foil is further formed formed with anodic film(Al2O3) on the surface as dielectric layer. Etched Foil is immersed into a solution including of Adipic Acid and applied with DC voltage so that the foil becomes positive and the solution becomes negative. Then aluminum oxide film is formed on the surface in proportion to the applied voltage.
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