How to passivate the surface of H62 and H68 copper?

The surface passivation treatment of H62 and H68 brass is very simple, only the workpiece needs to be immersed in copper passivation solution 47 for about 5 minutes.

if there is oil stain on the copper surface, it needs to be degreased, which is beneficial for the subsequent brass workpiece to fully contact with the passivation solution MS47;

If there are serious oxides on the surface of copper, it is necessary to carry out pre-pickling and other treatments to remove the oxides on the surface to prevent them from blocking the contact between chemicals and the surface of the workpiece;

Passivation treatment: a complete passivation film can be formed on the surface of the workpiece only by filling the chemical in a simple plastic basket and putting the workpiece into it for passivation treatment for more than 5 minutes;

after passivation, rinse and dry.

If you need to learn more about metal surface treatment, you can enter the link:

Web page link.