| 摘要 |
PURPOSE:To obtain a permanent magnet which has an excellent magnetic characteristic and strong mechanical strength by mixing magnet powder containing rare-earth elements with magnet alloy powder having a strong mechanical strength and coupling both powder to each other by sintering the mixture. CONSTITUTION:Magnet powder containing rare-earth elements is mixed with magnet alloy powder having a strong mechanical strength and both powder are coupled to each other by sintering the mixture. In addition, this permanent magnet is manufactured by mixing the magnet powder containing the rare-earth elements with the magnet alloy powder having a strong mechanical strength and sintering the mixture after pressurizing and molding the pressurized mixture in a magnetic field. For example, a neodymium-iron-boron-cobalt magnetic substance or samarium-cobalt-copper-zirconium magnetic substance is used for the magnet powder. The magnet alloy powder is constituted of 57-63wt.% iron, 22-30wt.% chromium, 6-17wt.% cobalt, <=3wt.% cobalt, and <=3wt.% titanium. Then, after the mixture is sintered and aged, prescribed magnetization is performed. |
