NdFeB magnet in the magnetization after the usual conditions, the magnetic properties change over time, its change is called natural aging. Artificial aging treatment is to maintain a permanent magnet at room temperature at a certain temperature is higher than a certain time in order to speed up the natural aging process, that is, high temperature thermal aging alternative to a long period of natural aging at room temperature.

NdFeB artificial nature of the role of aging in two ways: first, in the magnetization of natural aging prior to artificial, known as the organization stabilized, you can speed up the changes in the organizational structure of permanent magnets, to bring the organization structure is stable; second, In the magnetization after the artificial natural aging, known as the magnetic stability and handling, you can speed up the magnetic structure.