| 摘要 |
PURPOSE:To obtain an anisotropic rare earth magnet at low cost with excellent efficiency by giving a thin body anisotropy by deforming the thin body acquired by quenching and solidifying a molten metal. CONSTITUTION:A raw material consisting of elements, such as 16% Nd, 76%Fe and 8% B at an atomic percentage is dissolved, a molten metal 1 is sprayed continuously against a roll 3 for quenching turned at peripheral velocity of approximately 20m/sec from an exhaust nozzle 2, and a thin band 5 obtained through quenching is roll ed by a roll 4 for rolling, thus acquiring a flake 6 having anisotropy. The thin band 5 is heated by a heater 7 between the roll 3 for quenching and the roll 4 for rolling at that time. The flake 6 obtained is smashed into fine pieces as it is or as required, and molded in a magnetic field and solidified by a resin, thus acquiring an anisotropic magnet. Accordingly, a thin body need not be smashed into fine pieces so much as compared to a conventional method in which the thin body is pulverized after dissolution and casting and molded in the magnetic field and the anisotropic magnet is obtained, thus simplifying a manufacturing process. |
