为了进一步降低趋向硅钢铁损,研究了表面处理对取向硅钢铁芯损耗的影响,采用铁损分离的方法研究了磁滞损耗和异常涡流的变化规律.结果表明:取向硅钢经抛光处理,激光刻痕和PVD制备的高张力涂层复合作用铁芯损耗下降22%以上,其中表面抛光使得磁滞损耗下降28%左右,但异常涡流损耗上升15%左右,进一步采用刻痕和陶瓷涂层细化磁畴工艺处理,磁滞损耗上升5%,异常涡流损耗下降40%左右.
In order to prepare grain oriented silicon steel with low iron loss,the influence of surface treatment on iron loss of grain-oriented silicon steel was studied,and in which the hysteresis loss and abnormal eddy loss were discussed in detail.The results show that iron loss of the oriented silicon steel can be decreased by 22% after chemical polish compared with the substrate and subsequent TiN ceramic coating.When chemical polish technology is adopted,hysteresis loss decrease by 28%,but abnormal eddy loss deteriorate by 15%.When the groove forming technology is adopted before the preparation of ceramic coating,abnormal eddy loss improves by 40% and hysteresis loss deteriorate by 5%.
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