At this stage of the application of motor injection magnet in the motor key to ndfeb such a strong magnet as the leading, at the same time also divided by calcination or bonding (injection processing) NdFEB. Using Ndfeb to do precision plastic magnetic, rare earth permanent magnet motor size is correspondingly small, and light, servo control system corresponding to high output power and speed/net weight ratio, high operating torque, more electricity saving. Naturally, samarium cobalt or ferrite cores will be selected as the plastic magnet for the two electronic pumps.

Most of the magnets used by general motors are selected tile magnets, which are circular or ladder shaped, so the appearance of the motor is not the same. Such as rare earth permanent magnet motor or ac dc motor, linear motor, brush motor and so on. We generally use motor magnet and motor magnet attraction and repulsion to drive, all normal conditions are the use of axial symmetry magnetization tile magnetic to form a ring. Sintered Ndfeb is a variety of raw materials, so it is more difficult to make complex magnetized orientation. At this stage, there are sintered Ndfeb magnetic radioactive magnetization magnet, but for the specifications and models of this kind are a lot of restrictions, and its magnetic energy is also very unstable, consistency is very poor, at the same time the mold shell electromagnetic coil and magnetization fixture such are very expensive. The electromagnetic field occurs after the electromagnetic coil is plugged into the motor, and the electric transmission coil is also called the electromagnet. The positive and negative sides of a magnet will attract the mutually repulsive opposite poles of an electromagnet. Therefore, it is necessary to have a magnet, otherwise the REDOX potential electromagnetic coil does not bear the force, the motor is not easy to rotate. Because the magnet is the key part of all mechanical equipment, so in the motor, most of the large and medium-sized motor will use Ndfeb.