chemical polishing

chemical polishing
Principles of Chemical Polishing
Chemical polishing is the process of regularly dissolving a metal surface to achieve brightness and smoothness. In chemical polishing
During the polishing process of polishing materials and waxing, the surface of steel parts continuously forms a passive oxide film and the oxide film continuously dissolves, and the former is stronger than the latter. Due to the micro inconsistency on the surface of the part, the micro convex areas on the surface are preferentially dissolved, and the dissolution rate is greater than that of the concave areas; Moreover, the dissolution and formation of the film always occur simultaneously, but there are differences in their rates, resulting in the smoothing of the surface roughness of steel parts and the achievement of a smooth and bright surface. Polishing can fill surface pores, scratches, and other surface defects, thereby improving fatigue resistance and corrosion resistance.
Principles of Electrochemical Polishing
Electrochemical polishing, also known as electrolytic polishing. Electrolytic polishing is a process in which the workpiece being polished is used as the anode and insoluble metal is used as the cathode. The two electrodes are simultaneously immersed in the electrolytic cell and subjected to direct current to produce selective anodic dissolution, thereby increasing the surface brightness of the workpiece and achieving a mirror effect.

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