ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2010, Vol. 31 ›› Issue (3): 57-58.

• 组织和性能 • 上一篇    下一篇

Cr对无取向硅钢磁性能的影响

张峰1,2,李光强1   

  1. 1武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉430081;
    2宝山钢铁股份有限公司硅钢部,上海200941
  • 收稿日期:2009-11-04 出版日期:2010-06-01 发布日期:2022-11-07
  • 作者简介:张 峰(1976-),男,博士研究生,工程师,2005年武汉科技大学毕业,纯净钢和高效硅钢研发。
  • 基金资助:
    国家863计划资助项目(2008AA1A108)

Effect of Cr on Magnetic Properties of Non-Oriented Silicon Steel

Zhang Feng1,2, Li Guangqiang1   

  1. 1 Key Lab for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081 ;
    2 Silicon Steel Department, Baoshan Iron and Steel Co Ltd, Shanghai 200941
  • Received:2009-11-04 Published:2010-06-01 Online:2022-11-07

摘要: 分析了钢中Cr的氧化、氮化反应热力学,试验研究了0.025%~0.045%Cr对900℃退火+750~1 050℃二次退火的0.5 mm无取向硅钢(%:0.001 8C、0.45Si、0.45Mn、0.106P、0.003S、0.001 2N)磁性能的影响。结果表明,钢中含Cr氮化物析出温度为913 K,在热轧精轧和卷取过程中析出;随钢中Cr含量的增加,钢的晶粒尺寸减少,铁损中的磁滞损耗增加,而涡流损耗变化不大,为保证钢的电磁性能,应控制钢中Cr含量≤0.03%。

关键词: 铬, 无取向硅钢, 二次退火, 磁性能

Abstract: The thermodynamics of oxidizing and nitriding reaction of Cr in steel is analyzed and the effect of 0. 025% - 0. 045% Cr on magnetic properties of 0. 5 mm non-oriented silicon steel (% : 0. 001 8C, 0.45Si, 0.45Mn, 0. 106P, 0. 003S, 0. 001 2N) annealed at 900 ℃ + secondary annealed at 750 ~ 1 050 ℃ is tested and studied. Results show that the precipitation temperature of nitride of Cr in steel is 913 K, i. e. it precipitates during hot finishing rolling and coiling process ; with increasing Cr content in steel, the grain size of steel decreases, for core loss the hysteresis loss increases , while change of vortex loss is little, in order to ensure the magnetic properties of steel, the Cr content in steel should be controlled ≤0. 03%.

Key words: Chromium, Non-Oriented Silicon Steel, Secondary Annealing, Magnetic Properties