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What are the uses of the rare earth permanent magnetic material and how to prepare it?
Nov 03, 2017

With the development of computer, communication and other industries, the rare earth permanent magnet material has developed rapidly, and become one of the most comprehensive properties of permanent magnetic materials. Also because of the wide use of the rare earth permanent magnetic material, not only promotes the development of the permanent magnet device to the development of small, improves the performance of the product, but also promotes the generation of some special devices. But there are still many friends do not know what kind of material the rare earth permanent magnetism material is.

 

Correctly understood, the rare earth permanent magnetic material is a kind of alloy which consists of Sm, Nd mixed rare earth metal and transition metal, and pressed by powder metallurgy method, the magnetic material obtained by magnetic field magnetization. Now the rare earth permanent magnet material has become an important material in electronic technology communication, which is used in the traveling-wave tube, circulator, micro motor, miniature recorder, aeronautical instrument, accutron, seismograph and other electronic instruments in the artificial satellite and radar.

 

Not only that, the rare earth permanent magnetic material in the medical effect is also very prominent. Using the rare earth permanent magnetic material for magneto-therapy makes the curative effect greatly improved, so as to promote the rapid promotion of magneto-therapy. It is confirmed that the rare earth permanent magnetic material not only bring great impetus to the development of rare earth industry, but also has a profound impact on many related industries.

 

The application range of the rare earth permanent magnetic material is also related to its diversity and classification. The rare earth permanent magnetic material can be divided into the permanent magnetic material of rare earth cobalt,permanent magnetic material of rare earth neodymium,rare earth iron nitrogen or rare earth iron - carbon permanent magnetic materials.

 

Different rare earth permanent magnet materials have different preparation process, although most of them are sintered magnets by powder metallurgy sintering process. But there are sintered magnets prepared by reduction diffusion powder or hydrogen crushing treatment powder and powder metallurgy sintering process, and bonded magnets prepared by powder molding bonding process with rapid solidification or hydrogen crushing powder.


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