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    • 7. 发明授权
    • Spherical rotor for electrical motors
    • 电机球面转子
    • US4580335A
    • 1986-04-08
    • US573664
    • 1984-01-25
    • Oliver LaingNikolaus LaingKarsten Laing
    • Oliver LaingNikolaus LaingKarsten Laing
    • H02K15/02H02K21/46F04B17/00
    • H02K21/46Y10T29/49012
    • Process for the manufacture of rotors for asynchronous electrical motors with spherical air gaps. These rotors are designed as permanent magnets with low coercive force and comparably high electrical conductivity so that eddy currents can be formed as long as rotor rpm is different from the frequency of the rotating field of the stator while these rotors convert to permanent magnets running under synchronous conditions at rated performance. The process steps are the following:1. Milling an iron alloy with at least 5% cobalt to a sheet metal strip.2. Producing of rings by stamping.3. Annealing the rings to at least 1050.degree. C.4. Forming the rings to semi-spherical caps by a deep-drawing process at the annealing temperature pursuant to 3.
    • 用于制造具有球形气隙的异步电动机的转子的方法。 这些转子被设计为具有低矫顽力和相当高导电性的永磁体,使得只要转子转速不同于定子的旋转磁场的频率,则可以形成涡流,而这些转子转换成同步运行的永磁体 额定性能条件。 工艺步骤如下:1.将至少5%钴的铁合金铣到金属板条上。 2.冲压生产环。 3.将环退火至少1050℃。4.根据3,在退火温度下通过深拉伸工艺将环形成半球形帽。