MANUFACTURE OF PERMANENT MAGNET COMPOSED MAINLY OF NDFEB

摘要

PURPOSE: To provide a method for manufacturing a permanent magnet consisting of NdFeB as a main component. CONSTITUTION: A mixture is prepared by mixing NdFeB powder and Ga alloy powder consisting of one ore more rare earth metals (RE) and the prepared mixture is successively aligned, compressed and baked. Such an alloy can easily be crushed to homogeneous fine grain powder. The composition of the alloy preferably corresponds to an expression REGax, provided that x=1 or x=2. A suitable alloy contains of Dy and/or Tb as rare earth metals.