| 摘要 |
PURPOSE:To obtain a cylindrical magnet with which a high degree of total magnetic flux will be obtained by a method wherein the direction of magnetization of the pole circumference of the cylindrical magnet having a pole in radial direction is substantially brought into the state which is vertical to the outer circumferential face of the magnet, thereby enabling to improve the distribution of magnetic flux. CONSTITUTION:The direction of magnetization of the pole circumference of a cylindrical radial direction bipolar magnet 7' is brought into the state which is substantially vertical to the surface of outer circumference of the magnet 7'. Also, a cylindrical molding mold 1, the center 2' of the molding mold 1, the center 7' or the part 11' of the molding mold facing in the magnetizing direction with the interposed center 2' are formed into a ferromagnetic material. According to this device, the above-mentioned direction of magnetization is provided, and a cylindrical magnet having markedly improved outer circumferential magnetic flux distribution can be obtained. |
