电工钢 ›› 2021, Vol. 3 ›› Issue (1): 28-.

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无取向电工钢头尾磁性能波动分析

华国龙1,樊立峰2,肖丽俊3,岳尔斌4,陆斌1 ,何建中1,乔继强1,张文博1   

  1. 1.内蒙古包钢钢联股份有限公司,内蒙古 包头 014010;
    2.内蒙古工业大学 材料科学与工程学院,内蒙古 呼和浩特 010051;
    3.钢铁研究总院,北京 100081;
    4.江苏冶金技术研究院,江苏 张家港 215600
  • 出版日期:2021-02-28 发布日期:2021-02-25

Magnetic properties fluctuation analysis for headand tail of nonoriented electrical steel

HUA Guolong1,FAN Lifeng2 ,XIAO Lijun3,YUE Erbin4,LU Bin1,HE Jianzhong1,QIAO Jiqiang1,ZHANG Wenbo1#br#   

  1. 1.Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, China;
    2.School of Materials Science and Engineering, Inner Mongolia Universityof Technology, Hohhot 010051, China;
    3.General Steel Research Institute,Beijing 100081,China;
    4.Jiangsu Metallurgical Technology Research Institute,ZhangJiagang 215600, China
  • Online:2021-02-28 Published:2021-02-25

摘要: 针对无取向硅钢工业化生产过程中出现的带钢头、尾磁性能波动现象,采用OM、XRD、EBSD技术对显微组织和晶体织构进行分析研究,结果表明:(1)受温度波动影响,距离尾部越近,带状组织越严重,距离尾部25 m处芯部仍存在带状组织;(2)带钢头、尾平均晶粒尺寸较中部小7~10 μm,是造成头、尾铁损降低的直接原因;(3)相比于带钢中部,头部试样不利织构{111}〈112〉减少了2.8 %,但是有利织构{100}〈010〉也降低了1 %,导致磁感应强度相差不大。

关键词: 无取向电工钢, 磁性能, 组织, 织构

Abstract: In order to find the reasons for the fluctuation of magnetic properties in the head and tail during the industrial production of nonoriented silicon steel,the microstructure and texture were analyzed by OM, XRD and EBSD techniques. The results showed that: (1)because of the temperature fluctuation, the closer to the tail, the banded structure was more serious, and the banded structure still existed in the core at 25 m from the tail; (2) the average grain size of the head and tail of the strip steel was smaller than that of the middle 7~10 μm, which is the direct cause of the reduction in iron core loss of the head and tail; (3) compared to the middle of the strip steel, the unfavorable texture {111}〈112〉 of the head specimen was reduced by 2.8 %, but the favorable texture {100}〈010〉 was also reduced by 1 %,which resulted in a small difference in magnetic flux density. 

Key words: nonoriented electrical steel, magnetic properties, microstructure, texture