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Magnet development process
Gauss Industrial Co.,Ltd | Updated: Dec 14, 2017


1991 German physicist E.F. Koehler proposed the theoretical basis of the dual-phase composite magnet exchange and pointed out the prospect of the nanocrystalline magnet.

With the development of society, the application of magnets is also more and more widely, from high-tech products to the simplest packaging magnetic,

Currently the most widely used or neodymium iron boron magnets and ferrite magnets.

From the history of the development of magnets, the end of the nineteenth century early twentieth century, people mainly use carbon steel, tungsten steel, chrome steel and cobalt steel for permanent magnet materials.


Thirties

The successful development of Alnico magnets in the late 1930s allowed the large-scale use of magnets.


Fifties

The fifties, the emergence of barium ferrite magnets, both to reduce the cost of permanent magnets, but also the application of permanent magnet material to broaden the scope of high-frequency areas.


Sixties

By the 1960s, the emergence of samarium-cobalt permanent magnets opened up a new era for the application of magnets. So far, the rare earth permanent magnet has experienced the first generation of SmCo5, the second generation of precipitation hardening Sm2Co17, developed to the third generation of Nd-Fe-B permanent magnetic materials. At present, the ferrite magnet is still the largest amount of permanent magnet material, but the output value of the NdFeB magnet has greatly exceeded the ferrite magnet material, and the production of the NdFeB magnet has developed into a big industry.


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