Not two motor injection molded magnet is a new type of functional polymer composite material, not two precision plastic magnet is contemporary science and technology industry the main basic raw materials, not two electronic plastic magnetic pump and calcined permanent magnet materials compared with magnetic plastics have relative density is small, the impact compressive strength is big, the belt magnetic can manipulate with magnetic powder composition, organic chemistry, good reliability, And applied into the advantage of not prone to rupture, can choose polyester, polyphenylene oxide, ductility and other various plastic epoxy resin as a plank, and ferrite core magnetic powder, ndfeb magnet magnetic powder mixture, choose plastic general technical complete production and processing, injection molding processing forming in making thick wall, multifarious, radial direction and high precision magnetic field, Complete the integration of the formation of the field has a distinctive advantage, at the same time it also has high raw material utilization efficiency, high productivity characteristics, for electronic components miniaturization, light weight, compound, high efficiency, environmental protection and energy saving plays a crucial role. If you want to give full play to the higher efficiency of the magnetic core, you can wind the cable around the top of the plastic magnetic core several turns. The more turns of the coil, the better the suppression effect on the lower frequency, but the noise suppression effect on the higher frequency is poor. If the surface of ndfeb magnet raw material must be coated, you can first carry out the copper thickness plating process of the middle coating, and then gradually develop the surface of other coating production and processing. Naturally sometimes in order to improve the stability and thickness of the coating, and even can be pyrophosphate plating and then rapid acid alkaline electroplating copper processing process, and then to get a better surface decorative art, so that other coating will appear stronger practical effect. The incomparable cavitation effect of ultrasonic cleaning can completely eliminate the alkaline and acidic substances in the microporous plate of permanent magnet material.