How much do you know about magnets?

  • Ningbo Tengxiao Magnetic Industry Co., Ltd. is a professional supplier of magnetic products and magnetic equipment, specializing in the production of high-quality pot magnet, magnetic badges and other magnetic equipment, as well as custom industrial magnets.

    With the development of society, the application of magnets has become more and more extensive. From high-tech products to the simplest packaging magnets, neodymium iron boron magnets and ferrite magnets are currently the most widely used. From the perspective of the development history of magnets, at the end of the 19th century and the beginning of the 20th century, people mainly used carbon steel, tungsten steel, chromium steel and cobalt steel as permanent magnet materials. At the end of the 1930s, the successful development of AlNiCo magnets made the large-scale application of magnets possible. In the 1950s, the appearance of barium ferrite magnets not only reduced the cost of permanent magnets, but also expanded the application range of permanent magnet materials to the high-frequency field. In the 1960s, the emergence of samarium-cobalt permanent magnets opened up a new era for the application of magnets. In 1967, Strnat of Dayton University in the United States developed a samarium cobalt magnet, marking the arrival of the era of rare earth magnets. So far, rare earth permanent magnets have experienced the first generation of SmCo5, the second generation of precipitation hardening Sm2Co17, and the development of the third generation of Nd-Fe-B permanent magnet materials. At present, ferrite magnets are still the most used permanent magnet material, but the output value of NdFeB magnets has greatly exceeded that of ferrite permanent magnet materials, and the production of NdFeB magnets has developed into a major industry.

    The magnetic force is arranged as follows: neodymium iron boron magnet, samarium cobalt magnet, alnico magnet, ferrite magnet.

    Magnet manufacturing process: the manufacturing process of neodymium iron boron magnet, samarium cobalt magnet, alnico magnet and ferrite magnet is also different.

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