高效电机用无取向硅钢退火板组织和析出物研究

李永超; 李娜; 岳尔斌; 项利; 张延玲; 仇圣桃

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高效电机用无取向硅钢退火板组织和析出物研究

1. 北京科技大学冶金与生态工程学院, 北京 100083;
2. 钢铁研究总院连铸技术国家工程研究中心, 北京 100081

基金项目:

国家“十一五”科技支撑计划项目(2006BAE03A14)

详细信息

作者简介:
李永超(1985-),男,河北邢台人,硕士生,主要从事薄板坯连铸连轧生产无取向硅钢研究

中图分类号: TF764⁺.3,TG142.1
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- 文章访问数: 94
- HTML全文浏览量: 20
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2011-06-14

Research on Microstructure and Precipitates of Non-oriented Silicon Steel Sheets After Annealing for High-efficiency Motor

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. National Engineering Research Center of Continuous Casting Technology, Central Iron & Steel Research Institute, Beijing 100081, China

摘要

摘要: 研究了组织和析出物对高效电机用无取向硅钢退火板磁性能的影响。结果表明:随着退火温度升高,退火板平均晶粒尺寸增加,P_15/50明显降低,B₅₀略有升高。退火温度在1 000℃时,退火板的综合性能较好。析出物主要是AlN、(MnS+AlN)和(MnS+Al₂O₃)复合析出物,尺寸较粗大,主要集中在1.0~2.5μm,还发现少量百纳米以下的细小AlN和TiN。实验室模拟TSCR流程试制的高效电机用无取向硅钢,铁损平均值小于4.00 W/kg,磁感应强度大于1.75 T,适合作中小型高效电机铁芯材料。
- 无取向硅钢 /
- 高效电机 /
- 析出物 /
- 铁损 /
- 磁感应强度
Abstract: Effects of microstructure and precipitation on magnetic property of non-oriented silicon steel sheets after annealing for high-efficiency motor are studied in the paper by experiments.The annealed sheet exhibits a larger average grain size,obviously decreasing iron loss and slightly raising magnetic induction with increasing temperature.The annealed sheet has better comprehensive properties at a annealing temperature of 1 000℃.The main precipitates are compounds of AlN、(MnS+AlN)and(MnS+Al₂O₃) with coarse size of 1.0~2.5 μm.Besides,a few fine AlN and TiN with size below 100 nm are found.Iron loss of electrical steel simulated by TSCR process in laboratory is 4.00 W/kg and magnetic induction is more than 1.75 T.It is suitable for producing iron cores for small and medium sized high-efficiency motors.
- non-oriented electrical steel /
- high-efficiency motor /
- precipitate /
- iron loss /
- magnetic induction