The greatest advantage of high temperature high resistance magnets is that they can establish a strong magnetic field around them at high temperature without consuming their own energy. High-temperature resistance magnets have a wide range of applications. In various fields of modern science and technology, magnetic materials play different roles.
1. Converting mechanical energy into electricity and applying it to the induction electromotive force of a conductor moving in a magnetic field. Such as receiver, generator, pickup, etc.
2. Converting electrical energy to mechanical energy, the application of current-carrying conductor through magnetic field will be subject to electric force. It is widely used in electric loudspeakers, motors, electric headphones, magnetrons, cathode ray tubes, etc.
3. Converting one kind of mechanical energy into another kind of mechanical energy is based on the principle that magnets are equal to each other and opposite to each other. Examples of this type are electromagnets, electromagnetic conveyors, magnetic separators, etc.
4. Other special functions. It includes magnetized water, magnetic descaling, compass, magnetic therapy, etc.
The main applications of high-temperature magnets are loudspeakers and other electro-acoustic devices, followed by the generators and magnet rotors, which account for about 60% of the magnetic material requirements.
Because of the excellent magnetic properties of rare earth permanent magnet materials, a strong permanent magnetic field can be established without additional energy after magnetization. The rare earth permanent magnet motor is not only efficient, but also simple in structure, reliable in operation, small in size and light in weight. It can not only achieve the high performance that traditional electric excitation motors cannot match, but also make special motors which can meet the specific operational requirements, such as elevator traction motor, automobile special motor, etc.
The combination of rare earth permanent magnet motor with power electronics and computer control technology has improved the performance of motor and transmission system to a new level. Therefore, improving the performance and level of the technical equipment is an important development direction for the motor industry to adjust its industrial structure.
Rare earth permanent magnet motors are widely used in aviation, aerospace, national defense, equipment manufacturing, industrial and agricultural production. It includes permanent magnet synchronous motor, permanent magnet generator, direct current motor, brushless direct current motor, AC permanent magnet servo motor, permanent magnet linear motor, special permanent magnet motor and related control system, covering almost the entire motor industry.