| 摘要 |
PURPOSE:To supply a highly efficient rotor body in large quantities by adopting a rare earth magnet powder compression-molding process and a rotor body simultaneous integrated process. CONSTITUTION:Magnet powder of magnet composition 1 is filled in a void part while a filling ring 3 is being slidingly moved on the upper surface of a mold 4. At this point, an axis 5 is press-inserted into an intermediate member 8. Then, the magnet powder is compression-molded through the intermediary of an upper punch 9, and it is mechanically coupled with the intermediate material 8. Besides, a rotor molded body is taken out from the mold. At this point, the axis, the intermediate material and the magnet are integrally formed. As a result, the intermediate material and the axis can be processed simultaneously while the ring-like resin bonded magnet is being molded, and a highly precise and highly efficient integrated rotor for a small type motor can be produced in large quantities. |
