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以低纯钕为原料制备的Nd-Fe-B永磁体,实验室获得最佳(B·H)_m值38.5MGO_e,生产水平稳定在22～35MGO_e。本文介绍了该廉价磁体在薄型扬声器中的应用实例。
Nd-Fe-B permanent magnet made of low purity neodymium as the raw material, the best laboratory (B · H) _m value 38.5MGO_e, the production level stable at 22 ~ 35MGO_e. This article describes the application of the cheap magnet in thin loudspeakers.