Method for production of a soft-magnetic core having CoFe or CoFeV laminations and generator or motor comprising such a core

摘要

The invention relates to a method for the production of a soft magnetic core for generators and generator with a core of this type. To produce a core, a plurality of magnetically activated and/or magnetically activatable textured laminations is produced from a CoFeV alloy. This plurality of laminations is then stacked to form a core assembly. Then the core assembly, if consisting of magnetically activatable laminations, is magnetically activated. Finally, the magnetically activated core assembly is eroded to produce a soft magnetic core. A core of this type is suitable for a generator with a stator and a rotor for high-speed aviation turbines, the laminations in the core assembly being oriented in different texture directions relative to one another.

主权项

1. A method for the production of a soft magnetic core for generators or motors, comprising:
providing a plurality of magnetically activated and/or magnetically activatable laminations from a CoFeV alloy, which alloy comprises a vanadium content V, such that 0.75≦V≦2.5% by weight; stacking of the plurality of laminations to form a core assembly; optionally magnetically activating the core assembly, if it comprises magnetically activatable laminations; and then structuring of the magnetically activated core assembly or the core assembly made of magnetically activated laminations to form a soft magnetic core having rotationally symmetrical uniformity of magnetic properties.