| 摘要 |
PROBLEM TO BE SOLVED: To provide a bond magnet for improving strength and magnetic force. SOLUTION: In the cylindrical bond magnet made of magnetic powder and resin, the cylindrical bond magnet is a single forming body, at least four N and S poles are alternately subjected to multi-pole magnetization in an axial direction, and an inner diameter of the cylindrical bond magnet is within a range of 10 to 65%, thus obtaining a magnet having improved strength without inserting into a pipe and easily manufacturing the bond magnet having improved magnetic force by such a magnet. COPYRIGHT: (C)2011,JPO&INPIT |
