
Introduction Passivation
Passivation is a colourless surface treatment. By forming a dense, water-insoluble oxide layer on the metal surface. We mainly use this process to make metal parts more resistant to rust and damage. While maintaining their original appearance. This applies to stainless steel and other alloy metals, especially stainless steel with more chromium. This is used in many industries like medicine, food, and aerospace. especially important for occasions requiring high purity and no pollution.