Magnet Recycling

文件类型：PDF文档
文件大小：673K
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for recycling magnetic material to restore or improve the magnetic performance One of the methods includes fragmenting magnetic material to form a powder, mixing the powder with a) a rare earth material R and b) an elemental additive A to produce a homogeneous powder, wherein the rare earth material comprises at least one of : i) Nd, ii) Pr, and iii) Dy, and the elemental additive A comprises at least one of : i) Co, ii) Cu, and iii) Fe, and sintering and magnetizing the homogenous powder to form a Nd—Fe—B magnetic product.