neodymium magnet coating
Why need Coating & Plating?
Neodymium magnet coating is one of the main factors in production. Because the materials of neodymium magnets are unstable since they contain a lot of iron. They can have negative chemical reactions – corrosion (rust) – under hot and humid working conditions. This will weaken the magnetic performance and even shorten their life spans. And the coating can prevent or slow down oxidation very well.
What should be considered when choosing a coating
In many cases, people just consider how to make sure the neodymium magnet will not rust. But in some high technology cases or medical cases, there are many factors should be conisder, likes:- waterproof
- Mildew-proof
- Strong anti-salt spray performance
- Coefficient of friction
- Operating temperature
- Improved UV resistance
- Uniform thickness
- No damage to the workpiece
- Electrical insulation
- Biological evaluation of medical devices
- Comply with the biological test requirements of UDP Class VI plastics