Manufacturing influence on the magnetic properties and iron losses in cobalt-iron stator cores for electrical machines
Manufacturing influence on the magnetic properties and iron losses in cobalt-iron stator cores for electrical machines
复制标题
制造对电机钴铁定子铁芯磁性能和铁损的影响
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
A. Cavagnino
中科院分区：
文献类型：
--
作者：
A. Krings;M. Cossale;J. Soulard;A. Boglietti;A. Cavagnino
研究了制造工艺对钴铁系定子铁心磁性能和铁耗的影响，重点研究了退火层叠工艺对铁芯磁性能和铁耗的影响。给出了测量得到的磁滞回线和铁损曲线，以及微观组织分析。采用有限元方法研究了定子槽等几何效应对定子铁心的影响。推导出了一个修正因子，并将其应用于测量。此外，研究还表明，对于钴-铁层压板，精确的温度和持续时间的退火工艺对于获得预期的磁性和力学性能是绝对必要的。
The manufacturing influence on the magnetic properties and iron losses in stator cores made of cobalt-iron is investigated in this study, with a focus on the annealing and stacking process. Hysteresis and iron loss curves from measurements as well as a microscopic structure analysis are presented. FEM simulations are used to investigate the fringing effect in the stator cores due to the stator slots and others geometrical effects. A correction factor is derived and applied to the measurements. Furthermore, it is shown, that for cobalt-iron lamination sheets, the annealing process with an exact temperature and duration is absolutely essential to achieve expected magnetic and mechanical properties in the material.