With the unfreezing of patented technology for sintered neodymium iron boron in Japan, Germany, the European Union, and other countries, and the collaborative efforts of major sintering manufacturers in China, the grade of sintered neodymium iron boron products has significantly increased. As a high-tech application field, the continuous improvement of its comprehensive performance has also greatly increased the requirements for its surface treatment of sintered neodymium iron boron. Traditional treatment methods can no longer meet the requirements of industrial chain progress. Scientific research institutions such as University of Electronics, Sichuan University, Jiaotong University, and Ruishi Rice, etc, Starting from the micro molecular structure, the principle of surface treatment and the development of industrial application process have been improved in essence. After four years of efforts, breakthroughs have been made in key technologies. The nano (3010) chelating film is treated without coating, which is an original technology. The active groups contained in the nano film have strong resistance to moisture, oxygen, chloride ion (Cl), Carbon dioxide (CO2), etc. The corrosion resistance and adhesion performance of organic resins have significantly improved. Their excellent surface physical and chemical properties will have a significant impact on the application field

In December 2013, the treatment process was systematically tested by Sichuan University and the Chinese Academy of Sciences. Its corrosion resistance meets the requirements for 20-30 years of use in marine climate conditions, and can be widely used in sea-based wind power generation. The surface adhesion force is above 20Mpa, and can be widely used in permanent magnet high-speed motors, special motors, electric vehicle motors, ultra-high voltage, high-voltage DC power supply systems, fast charging systems, aerospace and military industries and other fields.