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NdFeB: A Primer on Rare-earth Permanent Magnet Materials with Shanghai CJ Magnet
Time:2022/3/25 11:04:05 View:602

Shanghai CJ Magnet is a manufacturer producing sintered NdFeB magnets. NdFeB, mainly composed of metallic neodymium, iron, boron and other trace elements and produced by powder metallurgy process, is the most preeminent magnets, compared to permanent magnets of other rare-earth materials.


NdFeB has larger magnetic energy product than samarium cobalt magnet. In fact, the material has the largest magnetic energy product in the world. With the development of powder metallurgy method, General Motors successfully introduced the spin-spray melting method, allowing itself to produce NdFeB magnets. Currently, NdFeB, the most used magnet, is second only to holmium magnet, which is the most magnetic permanent magnet at absolute zero, when it comes to magnetic performance. Now, NdFeB are widely used in electric motors, instrumentation, household products, etc.


As the third generation of rare earth permanent magnet material, NdFeB has the characteristics of high remanence, high coercivity, high magnetic energy product, high-cost performance, and good machinability. Hence, NdFeB magnet is also known as the King of Magnet and "Industrial Vitamin".


Shanghai CJ Magnet have introduced several advanced technologies, such as Grain Boundary Diffusion technology, Laminated Magnet technology, and Low-weight/Weight-loss technology, which enable us to reassure our customers by producing magnets with higher overall performance and keeping the quality consistency.