Hand board surface treatment process ②: Passivation
We know that metal products are easy to be corroded. In order to prolong the service life of metal products and improve the anti-corrosion ability of metal products, passivation protection must be carried out. Our common metal objects such as ships and cars are passivated. Passivation is a method to change the metal surface into a state that is not easy to be oxidized and delay the corrosion rate of metal. In addition, an active metal or alloy, in which the chemical activity is greatly reduced and becomes a precious metal state, also known as passivation. If the corrosion products…