METHOD FOR MANUFACTURING RARE EARTH BOND MAGNET

摘要

PURPOSE: To obtain a method for manufacturing a rare earth bond magnet for preventing a compound from being centered and obtaining a uniform magnetic distribution. CONSTITUTION: A process for obtaining a compound 1 by kneading the magnetic power of rare earth - transition metal - boron system and a resin binder, a process for performing injection molding by filling the compound 1 into a specific mold 2 from an injection part 8, and a process for performing magnetization to a molding after injection molding are at least included. A gate 3 may be a multiple-point gate where a plurality of gates are uniformly arranged or a film gate where a gap which is an injection port is formed over an entire periphery. A process for forming an extraction part at a position facing the gate 3 via the mold 2 and pulling out the compound from the extraction part while filling the compound 1 into the mold 2 from the gate 3 may be added.