| 摘要 |
PURPOSE:To facilitate the arrangement of magnetic materials by installing a rotor core in a casting mold, and applying a magnetic field radially to a casting space formed between the core and the mold. CONSTITUTION:A rotor core 2 is disposed coaxially in a casting mold 7 which has a cavity including an inner diameter larger than the outer diameter of the core, magnetic materials 5 which are filled in the casting space formed between the core 2 and the mold 7, a radial magnetic field is applied to the space to arrange it, and molten metal of conductive material 4 filled in the casting space is cooled and solidified while holding the radial arrangement of the materials 5. Then, the arrangement of the magnetic materials can be extremely readily and efficiently performed, and yet a conductive energizing sheath may be easily formed. |
