Using the method of draining the oxidation bath to reduce aluminum ions will make the operating conditions fluctuate widely, the quality fluctuates greatly, and the on-site operation management of the workshop will be more complicated.

The work of the aluminum ion stabilization device is to use an acid pump to pump the mixed solution of sulfuric acid and aluminum ions in the oxidation tank into the separation tank. Because the separation tank contains a special resin imported from abroad, the sulfuric acid and aluminum ions are efficiently separated by express delivery.