Removing impurities and promoting a corrosion-resistant oxide layer
Pickling involves the removal of impurities, such as oxides, scales, rust, and other contaminants, from the surface of metal.
Passivation is a subsequent process. It involves the formation of a protective oxide layer on the metal surface to enhance its corrosion resistance and prevent future oxidation.
These processes help ensure the optimal performance and appearance of metal surfaces over time by removing impurities and promoting a corrosion-resistant oxide layer.
