How to analyze the plated parts' surface defectives and improve them?

I. Description of the problem.

Dot blistering, peel off the visible plastic parts with corresponding dots, shiny, a few have part of the water stains. The specific phenomenon is as follows picture.

3.1, for new materials appearing in the problem.

The plating factory has had such problems, plating out on some products can see the phenomenon of blistering, after baking more obvious. Later, after investigation, the roughening cylinder was too dirty. The problem was completely solved by filtering the roughening solution with a special roughening filter, analyzing and adjusting it.

3.2. Problems with reworked materials (reworked plated products).

The factory has also experienced such a phenomenon, sent to customers for about 10 days, after customer complaints. After checking all the blistered products, after tearing off the plating, the rubber parts were yellowish and the proportion was small. The latter was verified and found to be a returned plated product put in the workshop for one night after the return plating, and the next day the returned plated product also appeared this phenomenon. Therefore, in general, it is not recommended for plating factories to replate products, especially products that have been replated several times are more likely to have this blistering phenomenon.

For plating faults, different abnormalities in each plating plant can cause similar undesirable phenomena, so they must be investigated one by one according to the actual site, and the above plating elites have analyzed them thoroughly. We hope to help more plating friends to find the root cause of the problem as soon as possible, so as to quickly solve the problem.