连铸坯中柱状晶比例对无取向电工钢组织和磁性能的影响  

Effect of Columnar Grain Proportion in Continuous Casting Slab on Microstructure and Magnetic Properties of Non-Oriented Electrical Steel

作　　者：詹东方 钱红伟 岳重祥 李慧 麻晗 ZHAN Dongfang;QIAN Hongwei;YUE Chongxiang;LI Hui;MA Han(Institute of Research of Iron and Steel,Shasteel,Zhangjiagang 215625,China)

机构地区：[1]江苏省(沙钢)钢铁研究院,江苏张家港215625

出　　处：《热加工工艺》2024年第11期91-94,101,共5页Hot Working Technology

摘　　要：在高牌号无取向硅钢的连铸生产过程中不进行电磁搅拌,可以保留更多具有强{100}织构的柱状晶。对该铸坯进行热轧、常化、冷轧和再结晶退火,检测工艺过程中的组织和织构,测定其对应的磁性能。结果表明:提高连铸坯中柱状晶比例,可以提高成品中的{100}等有利织构的强度,铁损P1.5/50降低,综合磁性明显改善,而且表面不会产生瓦楞状缺陷。More columnar grains with strong{100}texture can be retained in the continuous casting process of high grade non-oriented silicon steel without electromagnetic stirring.Hot rolling,normalizing,cold rolling and recrystallization annealing were carried out on the slab,the microstructure and texture in the process were detected,and the corresponding magnetic properties were determined.The results show that the strength of{100}and other favorable textures in the finished product can be improved by increasing the proportion of columnar grains in the continuous casting slab,iron loss P1.5/50 can be reduced,the comprehensive magnetic properties are improved obviously,and the corrugated defects will not appear on the surface.

关 键 词：无取向硅钢 电磁搅拌 柱状晶 织构 瓦楞状缺陷 

分 类 号：TG244.3[金属学及工艺—铸造] TG142.77[一般工业技术—材料科学与工程]