Why is it necessary to perform special anti-corrosion treatment on the surface of Electric Vehicle Motor Magnet?

Electric Vehicle Motor Magnet, especially those made of high-performance magnetic materials such as neodymium iron boron, are extremely susceptible to corrosion. In harsh environments such as humidity and salt, the ferromagnetic material on the surface of the magnet is easily oxidized and forms rust, which not only affects the appearance of the magnet, but more importantly, it will weaken its magnetic properties and even cause the magnet to break and fail. Therefore, through special anti-corrosion treatments, such as electroplating and coating, a dense protective layer can be formed on the surface of the magnet to effectively isolate corrosive media such as air and moisture, thereby improving the corrosion resistance of the magnet.
During the operation of electric vehicle motors, magnets are subject to various forces, such as electromagnetic force and mechanical vibration. These forces may cause physical damage such as scratches and wear on the surface of the magnet. Special anti-corrosion treatment layers, such as electroplating layers, not only have anti-corrosion functions, but also increase the hardness of the magnet surface and improve its wear resistance, thereby extending the service life of the magnet.
The performance of electric vehicle motors depends largely on the magnetic properties of the magnet. If the magnet is corroded or physically damaged, its magnetic field stability will be affected, which may lead to problems such as reduced motor efficiency and increased noise. Through special anti-corrosion treatment, the magnets can be protected from these adverse factors, thereby maintaining the stability of the magnetic field and ensuring the normal operation of the electric vehicle motor.
The working environment of electric vehicles is often harsh, such as high temperature, humidity, dust, etc. These environmental factors may have an adverse effect on the magnets. Special anti-corrosion treatment can enhance the adaptability of magnets to these harsh environments, so that they can still maintain stable and efficient performance in complex and changing working environments.