Rare earth permanent magnet materials, namely permanent magnet
materials contain rare earth metals as alloying elements. Permanent
magnet material refers to the magnetization after removing the
external magnetic field and can maintain strong magnetism for a
long time. Earth permanent magnet material has become an important
material in electronic technology communication, used in artificial
satellites, radar, traveling wave tubes, circulators and
micro-motors, micro recorders, aviation instruments, electronic
watches, seismometers and some other electronic instruments. The
application of rare earth permanent magnets has penetrated into
automobiles, household appliances, electronic instruments, nuclear
magnetic resonance imagers, audio equipment, micro motors, mobile
phones, and so on. In terms of medical treatment, the use of rare
earth permanent magnet materials for "magnetic point therapy" has
greatly improved the efficacy, thus promoting the rapid promotion
of "magnetic point therapy". In the application of rare earth in
various fields, rare earth permanent magnet material is one of the
fastest development. It has not only brought a huge impetus to the
development of the rare earth industry but also had a considerable
impact on many related industries.
