Electrochemical Passivating Equipment

Electrochemical passivation is from the principles of electrochemistry. The process forms a layer of infusible dense, firm composite film with oxide or multiple compounds on the metal surface. Since the electrochemical reaction is strong, the passivation film formed from it has excellent corrosion resistance.
On the one hand, after electrochemical passivation, a passivation film is formed on the stainless steel matrix surface and is integrated with its matrix. It does not adhere to the surface like a coating, and therefore, it does not shed; on the other hand, the surface maintains the previous surface treatment state after the process-for example, mirror polishing or brushed surface. After electrochemical passivation, the surface remains the original effect without visible appearance change; while, its corrosion resistance is much higher than the original state. The operational test shows that the salt fog resistance test on stainless steel can be improved by many orders of magnitude after the electrochemical passivation.

The process of electrochemical passivation: