Industry News

How should the neodymium iron boron magnet be corrosion resistant?

2018-11-10
  NdFeB magnets are magnets. These products are used in our lives. Therefore, there are many places in our lives that we need to notice, such as anti-corrosion. The work, because the NdFeB magnets are in contact with the air after a certain period of time, there will be some problems. Therefore, the NdFeB magnets are plated or painted after they are finished. Conventional surface treatments include: nickel plating (nickel copper nickel), galvanizing, aluminum plating, electrophoresis, and the like. If working in a closed environment, phosphating can also be used.

Anti-corrosion technique of NdFeB magnet


  NdFeB magnetism is a magnet product that is widely used and developed rapidly. NdFeB has been widely used since its invention, but it has been more than 20 years. Due to its high magnetic properties and ease of processing, the price is not very high, so the application field is expanding rapidly. Compared with permanent magnet materials such as ferrite, NdFeB magnet has very good magnetic properties. Its magnetic energy product is much higher than other magnets, and it can be called "one generation magnetic king".


   NdFeB magnetism is also a powder metallurgy product, and the processing method is similar to that of samarium cobalt. At present, the high working temperature of NdFeB is around 180 degrees Celsius. If it is a harsh environment, it is generally recommended not to exceed 140 degrees Celsius. Widely used in packaging, toys, gift crafts, fitness magnetrons, motors, micro-motors, computers, instruments, meters, motorcycles, cameras, watches, audio, home appliances, office automation, magnetic therapy and daily life.