| 简介 |
An Nd—Fe—B permanent magnet is disclosed. The Nd—Fe—B permanent magnet includes 28-34 weight % of rare earth elements, where the content of Dy is smaller than 0.1 weight % and the Nd—Fe—B permanent magnet has a spatial extension parallel to a magnetization direction of the Nd—Fe—B permanent magnet which is larger than 30 mm. Further described is a rotor assembly for an electro-mechanical transducer. The rotor assembly includes at least one of such an Nd—Fe—B permanent magnet. Further described is an electromechanical transducer including such a rotor assembly and a wind turbine including said electromechanical transducer. |
客服热线：
手机版
二维码
