在实验室模拟CSP流程制备了不同含量稀土铈(质量分数0~0.018%)的1.2% Si无取向电工钢, 并对其进行1 000 ℃×5 min的再结晶退火处理, 研究了铈质量分数对无取向电工钢夹杂物、显微组织、再结晶织构和磁性能的影响。结果表明: 随着铈质量分数的增加, 微细夹杂物数量、再结晶晶粒尺寸、{100}和{110}织构组分、磁感应强度先增后减, {111}织构组分、铁损先减后增; 铈的质量分数为0.005 1%时, 钢中的夹杂物数量最少, 再结晶晶粒尺寸最大, 有利织构最多, 磁性能最优, 铁损P15/50为3.253 W·kg-1, 磁感应强度B50为1.751 T。

Non-oriented electrical steels containing different contents rare earth Ce element (0-0.018wt%) were prepared in the laboratory by simulated CSP (compact strip production) process, and then recrystallization annealing at 1 000 ℃ for 5 min were performed, the effects of Ce content on inclusion, microstructure, recrystallization texture and magnetic properties of non-oriented electrical steels were studied. The results show that with the increase of Ce content, the amounts of fine inclusion, the size of recrystallization grains and {100} and {110} texture components and magnetic flux density increased first and then decreased, {111} texture component and iron loss decreased and then increased. When the Ce content was 0.005 1wt%, the amounts of inclusions in the steel was the lest, tthe size of recrystallization grains was largest, benifiting texture was most, the magnetic properties was best, and the iron loss P15/50 and magnetic flux density B50 of were 3.253 W·kg-1 and 1.751 T, respectively.