How to detect coating quality?
The quality of the coating directly affects the service life of NdFeB. The main methods for detecting the quality of NdFeB coating are:
1. Visual Inspection
The appearance is mainly observed by the eyes, and it is best under natural light (daylight, indirect), or under a fluorescent lamp with an illumination of 40W. There should be no foaming, peeling, partial plating and uneven color, stains, water stains, etc.
2. Coating Thickness Measurement
3. Drop Test (mainly for galvanized products)
4. Cross-Cut Test (usually used for nickel plating products)
5. Chilling Heat Test
6. PCT Pressure Test
7. SST Salt Spray Test
8. Constant Temperature And Humidity Test, etc.