alnico
有名的“铝镍钴磁钢”(Alnico),磁性比普通钢铁磁铁高25倍,常用作永久磁铁。某些铂钴合金也具有很强的磁性。
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供铝镍钴磁钢磁性材料 alnico magnet
铝镍钴磁钢规范 Specifications for aluminium-nickel-cobalt permanent magnet
铝镍钴合金/磁钢 Alnico
然而,为了充分利用昂贵的稀土永磁体,在直流力矩电动机的传统磁结构中,直接用稀土永磁体取代铝镍钴磁钢是不适宜的。
However, to take full advantage of the expensive rare earth magnets, simply replacing the alnico magnets by rare earth ones in traditional magnetic structures of dc torque motors is not adequate.
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