磁场退火对无取向硅钢磁性能的影响

为了研究退火温度、磁场强度、磁场方向及退火时间等对低牌号无取向硅钢磁性能和组织的影响,在正交试验的基础上,对无取向硅钢进行不同条件的退火处理,通过对磁性能数据的正交分析,优选出最佳的工艺参数。研究结果表明:退火温度和磁场强度是影响试验钢比饱和磁化强度的主要因素,磁场强度与退火时间对剩余磁化强度也有显著的影响。当加热温度在800℃、施加磁场强度为3 T时,调整施加磁场的方向与退火时间可以使无取向硅钢的比饱和磁化强度、比剩余磁化强度分别达到260.7 emu/g、18.265 emu/g。

Effects of Electromagnetic Annealing on Magnetic Properties of Non-oriented Silicon Steel

In order to investigate the effects of intensity of magnetic field, orientation of magnetic field, annealing temperature and holding time on low grade non-oriented silicon steel, based on the orthogonal experiment, low grade non-oriented silicon steel were annealed under different conditions, and the magnetic properties were examined by orthogonal analysis, so that the best processing parameters are picked. The results of experiment indicate that an-nealing temperature and intensity of magnetic field are the key factors of the specific saturation magnetization as well as intensity of magnetic field and holding time affects significantly on the specific remanent magnetization. The spe-cific saturation magnetization and specific remanent magnetization of non-oriented silicon steel could reach 260. 7 emu/g and 18. 265 emu/g respectively when annealing temperature is 800 ℃ with intensity of magnetic field being 3T by means of readjusting orientation of magnetic field and holding time.