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What are the common materials for magnet for motor casing?
Dec 17, 2018

The magnets for the motor casing can be made of different materials. For the moment, the permanent magnet materials commonly used in motors include sintered magnets and bonded magnets. The main types are aluminum-nickel-cobalt, ferrite, samarium-cobalt and neodymium-iron-boron. AlNiCo permanent magnet material is the first widely used permanent magnet material, and its preparation process and technology are relatively mature.

 

With the advancement of technology, magnets for motor casings of permanent magnet ferrite materials have gradually been developed and applied. As a non-metallic magnetic material, ferrite has no metal permanent magnet material, which is easy to oxidize, has low Curie temperature and high cost, so it is very popular.

 

In terms of magnetic properties, the permanent magnet material of samarium cobalt material is particularly suitable for the manufacture of magnets for motor casings. Currently, it is mainly used for research and development of military, aerospace, military and other military motors and high performance, and the price is not the main factor. In the field of electrical machinery.

 

In addition, NdFeB materials can also be used as magnets for motor casings, which have extremely high magnetic energy product and force, and the advantages of high energy density make NdFeB permanent magnet materials widely used in modern industrial and electronic technologies. This makes it possible to reduce the size, weight, and thickness of equipment such as instrumentation, electroacoustic motors, and magnetic separation magnetization.

 

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