金属热处理 ›› 2022, Vol. 47 ›› Issue (10): 124-128.DOI: 10.13251/j.issn.0254-6051.2022.10.020

• 工艺研究 • 上一篇    下一篇

罩式退火工艺的升温速率对无取向硅钢织构及性能的影响

苏志贺1, 金自力1,2, 吴忠旺1,2, 崔元林1, 任慧平2, 赵小龙3, 罗晓阳3, 狄彦军3   

  1. 1.内蒙古科技大学 材料与冶金学院, 内蒙古 包头 014010;
    2.内蒙古自治区新金属材料重点实验室, 内蒙古 包头 014010;
    3.酒钢宏兴股份有限公司 钢铁研究院, 甘肃 嘉峪关 735100
  • 收稿日期:2022-05-16 修回日期:2022-08-24 出版日期:2022-10-25 发布日期:2022-12-15
  • 通讯作者: 吴忠旺,高级工程师,E-mail:woozhongwang@163.com
  • 作者简介:苏志贺(1996—),男,硕士研究生,主要研究方向为无取向硅钢的生产工艺,E-mail:1308507518@qq.com。
  • 基金资助:
    内蒙古自治区关键技术攻关计划(2020GG0150)

Influence of heating rate of bell annealing process on texture and properties of non-oriented silicon steel

Su Zhihe1, Jin Zili1, 2, Wu Zhongwang1,2, Cui Yuanlin1, Ren Huiping2, Zhao Xiaolong3, Luo Xiaoyang3, Di Yanjun3   

  1. 1. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou Inner Mongolia 014010, China;
    2. Inner Mongolia Autonomous Region Key Laboratory of Advanced Metal Materials, Baotou Inner Mongolia 014010, China;
    3. Iron and Steel Research Institute, JISCO Hongxing lron and Steel Co., Ltd., Jiayuguan Gansu 735100, China
  • Received:2022-05-16 Revised:2022-08-24 Online:2022-10-25 Published:2022-12-15

摘要: 研究了罩式退火工艺的升温速率对0.8%Si无取向硅钢组织、织构及磁性能的影响。结果表明,经过不同升温速率退火后,无取向硅钢的再结晶织构主要为{111}织构,伴随有{110}、{100}织构。随着退火升温速率的提高,晶粒尺寸逐渐增大,{111}织构明显减弱,{110}织构明显增强,{100}织构没有明显变化,铁损P1.5/50逐渐降低,磁感应强度B5000逐渐增强。但当升温速率由80 ℃/h升高至100 ℃/h时,{111}织构出现一定程度的增强,{110}织构出现减弱,{100}织构没有明显变化,铁损P1.5/50增大,磁感应强度B5000减小。在退火升温速率为80 ℃/h时,无取向硅钢可获得最优的磁性能:P1.5/50=4.249 W/kg,B5000=1.715 T。

关键词: 无取向硅钢, 升温速率, 织构, 磁性能

Abstract: Effect of heating rate on microstructure, texture and magnetic properties of 0.8%Si non-oriented silicon steel during bell annealing process was studied. The results show that after annealing with different heating rates, the recrystallized texture of the non-oriented silicon steel is mainly {111} texture, accompanied by {110} and {100} texture. With the increase of heating rate, the grain size gradually increases, the {111} texture appears to be significantly weakened, the {110} texture appears to increase significantly, and the {100} texture does not change significantly, meanwhile, the iron loss P1.5/50 gradually decreases, and the magnetic induction intensity B5000 gradually increases. However, when the heating rate is increased from 80 ℃/h to 100 ℃/h, the {111} texture appears to be strengthened to a certain extent, the {110} texture appears to weaken, and the {100} texture does not change obviously, moreover, the iron loss P1.5/50 increases and the magnetic induction intensity B5000decreases. When the heating rate of bell annealing process is 80 ℃/h, the optimum magnetic properties can be obtained as P1.5/50=4.249 W/kg, B5000=1.715 T.

Key words: non-oriented silicon steel, heating rate, texture, magnetic properties

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