The electroplating of luggage hardware fittings has a lot to do with the degree of rust prevention of hardware products. Usually our hardware accessories manufacturers do two kinds of electroplating. One is rack plating, which is polished and hung up one by one in an electroplating factory, so the quality is very good. The other is barrel plating. Electroplating is done by simply passing the rough edge, passing the drum or shaking the machine. The electroplating is placed in a large tank and rolled up. Therefore, after electroplating, the surface will have some small pits, small black spots, not smooth and so on. These are all product grades due to differences in polishing and electroplating processes.
Let's talk about sealing oil, there is another name called "Laijia". It is another layer of protection outside the electroplating layer. It can separate the direct contact between the electroplating layer and the outside world, greatly improving the safety of the electroplating layer. How to distinguish whether a luggage hardware fitting is oil-sealed or not?
1. Look at the degree of light reflection on the surface of the luggage hardware accessories. For example: the difference between before and after the mobile phone film. In this way, everyone should have a bit of spectrum in their hearts. Of course, only such an identification method is unscientific and incomplete. Not all friends understand this kind of craft, it is very abstract to say that.
2. Check to see if there are small oil droplets on the edge of the product. To give another example, when you wake up in the morning, the small water drops on the leaves flow from wherever they are low. After the oil is sealed, there will always be excess oil flowing to the lower edge when drying.