Differences Between Chemical Polishing and Mechanical Polishing

Chemical polishing is essentially different from mechanical polishing

Chemical polishing is the process of dissolving the tiny convexities on the surface to be polished first, improving the roughness of the metal surface and obtaining a smooth and bright surface.

Mechanical polishing is the process of removing the convexities on the surface to be polished by cutting, abrasion or plastic deformation to obtain a smooth and bright surface.

The two polishing methods have different effects on the metal surface, and many properties of the metal surface are changed, so chemical polishing and mechanical polishing are essentially different.

Due to the limitations of mechanical polishing, metal workpieces such as stainless steel cannot perform their due functions. These problems are difficult to solve. Since the emergence of stainless steel electrolytic polishing technology, the problems that are difficult to solve in mechanical polishing have been solved to a certain extent, and the advantages are obvious. However, electrolytic polishing still has many disadvantages.

Comparison between chemical polishing and electrolytic polishing

Chemical polishing: immersing the metal in a special chemical solution composed of various components, and the metal surface is naturally dissolved by chemical energy to obtain a smooth and bright surface.

Electrolytic polishing: is to immerse the metal in a special chemical solution composed of various components, and use the current energy to dissolve the metal surface anode to obtain a smooth and bright surface.

Chemical polishing is just an immersion operation and is simple to operate. Electrolytic grinding and polishing requires large-capacity direct current, reasonable setting of current counter-electrodes, precise control of current and voltage, complex operation process, difficult quality control, and some special workpieces cannot be processed.