Zastosowanie blach ze stopów kobaltowo-żelazowych w maszynach z magnesami trwałymi

The article discusses the magnetic properties of magnetic cores for the three motor type PMSM 2p = 8 These cores have the same geometry of stator and rotor electrical steel sheet, and different type of steel used. In first core using the standard sheet type M330-50A. In two successive cores using modern electrical steel sheet cobalt-iron alloy. In two successive cores using modern electrical steel sheet cobalt-iron alloy type Vacoflux50. The first core is made of electrical steel sheet without annealing, the second was annealed according to the manufacturer requires. For each core in addition to two winding coil wound measurement was performed using the comparative tests of cores. Based on the study can be clearly observed from the stator made of cobalt-iron alloy without annealing not suitable for the build of motors magnetic circuits. The parameters of this material are changed completely after the annealing process, which is shown on the submitted characteristics. Magnetic properties of cobalt-iron alloy after annealed are significantly improving, greatly exceeding the parameters of a standard electrical sheet.