Material is an important material basis for social progress, a major indicator of the degree of human progress, and a milestone in the progress of social progress. Throughout the history of human development, we will find that the discovery and extensive use of any new material has raised the ability of mankind to transform nature to a new level. NdFeB magnetic materials in functional materials have been received since ancient times, and the class is highly valued. As early as the third century BC, the use of natural magnetite to manufacture Sinan, the Song Dynasty used steel needle magnetization to create a compass, providing a key technology for the development of navigation.

NdFeB is a kind of functional material with important influence. It has been widely used in transportation, energy, machinery, computer, household appliances, microwave communication, instrument technology, electrical engineering, automation technology, automobile industry, petrochemical industry, bioengineering, etc. The field, its usage has become one of the important indicators to measure a country's comprehensive national strength and national economic development level, and is one of the foundations of the current litigation industry. Some people have compared the invention and application of semiconductor integrated circuits to the modern information industry to install a complete brain. The application of rare earth neodymium iron boron magnets has given the modern information industry activities to walk the limbs and spread wings.