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Electrolytic polishing
The basic principle of electrolytic polishing is the same as that of chemical polishing, which is to selectively dissolve the tiny protrusions on the surface of the material to make the surface smooth. Compared with chemical polishing, the influence of cathode reaction can be eliminated and the effect is better. The electrochemical polishing process is divided into two steps:
(1) Macroscopic leveling: The dissolved products diffuse into the electrolyte, and the geometric roughness of the material surface decreases, Ra > 1 μm.
(2) Glimmer smoothness, anodic polarization, improved surface brightness, Ra < 1 μm.
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