论文部分内容阅读
本文研究了环氧树脂粘结的Sm_2TM_(17)稀土永磁体,它与烧结磁体不同的是将熔炼后的钢锭直接固溶处理,时效,粉碎,然后与环氧树脂粘结剂混匀于磁场下压制成型,加热固化。当采用铁含量为23％的SmCo(4.9)Fe_(2.7)Cu_(0.54)Zr_(0.13)合金进行适当热处理及选用一定成型工艺参数时,获得的磁体最佳性能为:Br=0.8250 T,iHc=1034.5 kA/m,(BH)m=127.3 kJ/m~3对磁体稳定性的研究表明,磁体在25～70℃温度范围内的平均可逆温度系数α=-0.03％/℃,最高长期使用温度为130℃以及具有良好的耐酸、碱、盐化学腐蚀能力。
In this paper, the epoxy resin bonded Sm_2TM_ (17) rare earth permanent magnet, which is different from the sintered magnet is the molten steel ingot solution treatment, aging, crushing, and then mixed with the epoxy resin in the magnetic field Press molding, heat curing. The optimum properties of the obtained magnet were as follows: Br = 0.8250 T, iHc (i) = 0.8250 T, when proper heat treatment and certain forming parameters were selected with SmCo (4.9) Fe 2.7 Cu 0.54 Zr 0.13 alloy with 23% = 1034.5 kA / m, (BH) m = 127.3 kJ / m ~ 3 The study on the magnet stability shows that the average reversible temperature coefficient of the magnet in the temperature range of 25 ~ 70 ℃ is -0.03% / ℃, Temperature of 130 ℃ and has good acid, alkali, salt chemical corrosion.