As the name suggests, NdFeB powerful magnets are mainly made of three materials: neodymium, iron, and boron. Of course, there will be other element materials. After all, the ingredients of different products are different, and the magnetic force is determined by The ratio of these key materials is produced. Therefore, if it is a professional magnet manufacturer, in the process of communicating with customers, it must provide products with appropriate magnetic force (suction force) according to the actual use requirements put forward by customers, so as to ensure the normal use of the products.
1. The suction force of the same NdFeB strong magnet is also restricted by many external conditions
For example, factors such as the occasion of use, temperature, humidity, etc. will continuously lose the suction force of the powerful magnet for a long time. The installation method of the strong magnet block is also a very important factor. For example: powerful magnets of the same size, because of different grades, have different adsorption capabilities for the same attracted object. In addition, the magnets are still the same size. We also use the same brand, but the suction force we actually tested for the front and side adsorption of the same object is different. Furthermore, the size of the vertical adsorption and the horizontal installation are different.
Therefore, if you want to understand and buy a really suitable strong magnet block product, you still need to go to a regular factory to buy it, so as to ensure the stability of the material and the correct reference for the size of the suction force.
2. The magnetic properties of strong magnets
The industry has also discussed the magnetic properties of strong magnet blocks for many years. Due to the variety of use environments and methods of strong magnet products, under normal circumstances, the suction of strong magnets will not be affected by the outside world, so it is called It is a permanent magnet. But for special use cases, such as salt spray resistance and corrosion resistance, it will cause very large external damage to the strong magnet itself, so the magnetic force will definitely be affected, and the magnetic performance will inevitably be lost over time, so In special environments, it is necessary to select raw material products suitable for special environments and suitable electroplating protection, so as to ensure the permanent suction of magnet products.
Nickel plating is difficult. Some customers have higher requirements for salt spray resistance and acid and alkali resistance, such as 72 hours of resistance. At this time, you can choose parylene coating, which is more guaranteed. Some people still have questions, why is epoxy not recommended? Salt spray resistance for 72 hours, nickel plating and epoxy are not guaranteed. If you need to resist salt spray for 12 hours, it is recommended to use galvanized. At present, there are many kinds of electro-galvanizing, the common ones are white zinc, blue zinc, colored zinc, and black zinc. After 48 hours of salt spray, customers are generally recommended to use nickel plating. At present, the basic process of nickel plating is nickel-copper-nickel, conventional plating.
