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Permanent magnetic material selection principles _ ndfeb strong magnet manufacturers

by:Newland     2020-04-03
Permanent magnetic material selection principle of permanent magnet type variety, performance difference is very big, so in the design of permanent magnet motor must first choose suitable varieties of permanent magnetic material and concrete performance indicators.   ( 1) Should ensure there is enough in the motor air gap air-gap magnetic field and the regulation of motor performance metrics.   ( 2) In the regulation of environmental conditions, working temperature and use conditions should be able to guarantee the stability of the magnetic.   ( 3) Have good mechanical properties, to facilitate the processing and assembly.   ( 4) Economy is better, the price is suitable.   For a long time, major national science and technology plan, including & other; 973' Plan, & other 863' Plan and the natural science foundation of key projects, as well as the recent national key projects such as research and development plan in the guide, permanent magnetic material has its place. As & other; Throughout 2025 & made in China; Programme of action, permanent magnetic material will be in a new round of technological revolution and industrial revolution plays a more and more important role. At present, Ba, Sr ferrite still is one of the biggest amount of permanent magnetic material, but its many applications are being Nd - Fe- Class B material instead. And now the output value of the rare earth permanent magnet materials have greatly more than ferrite permanent magnet, rare earth permanent magnet material production has developed into a big industry.
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