Motor Magnets Manufacturers are generally divided into permanent magnets and soft magnets. The magnets we refer to generally refer to permanent magnets:: Metal alloy magnets include neodymium iron boron magnets (Nd2Fe14B), samarium cobalt magnets (SmCo), and aluminum nickel Cobalt magnet (ALNiCO) Ferrite), neodymium iron boron magnet: It is currently found to be the most commercially available magnet, known as the Magneto, with extremely high magnetic performance (BHmax) more than 10 times higher than ferrite (Ferrite). Its own machining performance is also quite good. Work at 200°C. Moreover, its texture is hard, its performance is stable, and its cost performance is very good, so its application is extremely wide. But (such as Zn, Ni, electrophoresis, passivation, etc.).

Ferrite magnet: Its main raw materials include BaFe12O19 and SrFe12O19. Manufactured by ceramic technology, texture Al-Ni-Co magnet: It is an alloy composed of aluminum, nickel, cobalt, iron and other trace metal elements. The casting process can be processed and the machinability is very good. Cast AlNiCo permanent magnets have the lowest reversible temperature coefficient, and the working temperature can be above 600℃. Alnico permanent magnet products are widely used in various instruments and other applications. , Samarium cobalt (SmCo) is divided into SmCo5 and Sm2Co17 according to the composition. Because its material is expensive, it is made of SmCo as a rare earth permanent magnet, which not only has a high magnetic energy product (14-28MGOe), is reliable, and is in a strong magnet technology. When the magnet is magnetized in the reverse direction, the magnet will induce magnetic induction. The strength of the reverse magnetic field required for the intensity to drop to zero (Hcb). But the magnetization of the magnet is not zero at this time, but the applied reverse magnetic field and magnetism (exteal magnetic induction is zero) at this time, if the exteal magnetic field is cancelled, the magnet still has a certain 11000 Oe or more. At this time, the magnetic induction intensity of the magnet represents the maximum magnetic flux value that the magnet can provide.

It can be seen from the demagnetization curve that it corresponds to the highest practical permanent value of Br when the air gap is zero, which we call the intrinsic coercivity. Intrinsic coercivity If the applied magnetic field is equal to the intrinsic coercivity of the magnet, the magnetic Hcj of the magnet will decrease as the temperature rises. Therefore, a higher grade should be selected when working in a high temperature environment. The main production and marketing of rubber magnets (magnetic products) of the same and different nature; the company's leading products with high technical content: a variety of specifications and high-performance magnetic rods, tile-shaped magnets, square magnets,