Anisotropic bonded magnet is referring in particular to the rare earth type and it was were long regarded as an option to fill the magnetic performance gap between commercialized bonded Neodymium magnet (12MOGe) and sintered Neodymium magnet (35MOGe). Anisotropic bonded magnet must apply orientation field during the molding process which totally unlike the isotropic bonded magnet. The majority of magnetic powder will be aligned in the specific direction and thus exhibit maximum output. Anisotropic bonded magnets can be further classified to anisotropic injection molded magnet and anisotropic compression molded magnet according the molding process. In addition to molding process, it also can be divided to anisotropic NdFeB magnet, anisotropic SmFeN magnet, and anisotropic hybrid magnet based on the composition of magnetic powder. Magnetic powder, molding technology, and orientation technology is all core barriers to the anisotropic bonded magnets.
Who supplies the powders? Is this the Aichi process?
Hi, Michael.
Thanks for your comment.
There are some Chinese suppliers can make HDDR powder now, and hot-deformed powder should be purchased from Magnequench.
Beijing Magvalley claimed that they can provide anisotropic SmFeN powder two or three years ago.
Actually, technical difficulty of anisotropic bonded magnet is still very high to Chinese bonded magnet manufacturers.