Research progress of tin or antimony in non-oriented electrical steel
CHU Shao-yang1, GAN Yong1, QIU Sheng-tao1, XIANG Li1, TIAN Yu-shi1,2, LIU Bin1
1. National Engineering Research Center of Continuous Casting Technology, Central Iron and steel Research Institute, Beijing 100081, China; 2. School of Metallurgy and Ecology Engineering, University of Science and Technology Beijing, Beijing 100083, China
Abstract:In recent years, due to the background of energy saving and emission reduction, numerous researchers all around the world have done a lot of investigations on the improvement of magnetic properties for non-oriented electrical steel. In order to explore the method of improving the magnetic properties of non-oriented electrical steel, the mechanism of tin or antimony on the magnetic properties (the control of grain size and crystallographic texture) of non-oriented electrical steel is illuminated. Based on this mechanism, the effect of tin or antimony addition on magnetic properties of non-oriented electrical steel is introduced. It is found that an appropriate amount of tin or antimony will not hinder the movement of grain boundary and reduce the grain size. Meanwhile, the segregation of tin or antimony at the grain boundary not only inhibits the nucleation and growth of {111} texture at the original grain boundary, but also lowers the (100) grain surface energy and promots the growth of (100) grain. Therefore, an appropriate amount of tin or antimony can reduce the core loss of non-oriented electrical steel and improve the magnetic induction. Finally, considering the production process, some suggestions on the research direction of non-oriented electrical steel are put forward, which are the effect of rare earth content on the size and quantity distribution of inclusions in high grade non-oriented silicon steels, and the effect of tin or antimony addition and normalization process parameters (normalization time, normalization temperature) on normalized band grain size.
褚绍阳, 干勇, 仇圣桃, 项利, 田玉石, 刘斌. 锡或锑在无取向电工钢中的研究进展[J]. 中国冶金, 2022, 32(5): 1-6.
CHU Shao-yang, GAN Yong, QIU Sheng-tao, XIANG Li, TIAN Yu-shi, LIU Bin. Research progress of tin or antimony in non-oriented electrical steel[J]. China Metallurgy, 2022, 32(5): 1-6.
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