正火对高锰50W470无取向硅钢磁性的影响  

Effect of normalizing on magnetic properties of high-manganese 50W470 non-oriented silicon steel

作　　者：杨帆[1,2] 花艳侠 张晨[1] 仇圣桃[1] 

机构地区：[1]钢铁研究总院连铸技术国家工程研究中心,北京100081 [2]新余钢铁集团有限公司技术中心,江西新余338001 [3]辽宁科技大学材料与冶金学院,辽宁鞍山114000

出　　处：《金属热处理》2015年第11期165-167,共3页Heat Treatment of Metals

摘　　要：研究了900-1000℃正火对高锰50W470无取向硅钢的组织、织构和磁性的影响。结果表明,随着正火温度的升高,成品板的平均磁感不断增加,而铁损在975℃最低。热轧板正火后的晶粒尺寸随正火温度升高不断增大,而对应冷轧、退火后的成品板晶粒尺寸先增大后减小（975℃时最大）。在975℃×5 min正火后,成品板中得到对磁性有利的{100}面织构和高斯织构,磁性能改善。高锰50W470无取向硅钢的最佳正火工艺为975℃×5 min,此工艺可改善高锰无取向硅钢的组织和织构,最终提高其磁性能。Effects of normalizing treatment at 900-1000 ℃ on microstructure,texture and magnetic properties of high-manganese 50W470non-oriented silicon steel were investigated.The results show that the magnetic induction increases with the increase of normalizing temperature,and the lowest iron loss appears at 975 ℃.The grain size of hot rolled plate after normalizing increases with the increase of normalizing temperature,while the corresponding grain size of final product after cold rolling and annealing increases first and then decreases（ the maximum at 975 ℃）.{ 100} texture and Gauss texture can be obtained in the final products of silicon steel plate after normalizing at975 ℃ for 5 min,such can improve the magnetic properties.The optimal normalizing process of high-manganese 50W470 non-oriented silicon steel is normalizing at 975 ℃ for 5 min.Normalizing treatment can improve the microstructure and texture of high-manganese nonoriented electrical steel,and finally improve the electromagnetic properties of it.

关 键 词：无取向硅钢 正火 磁性能 组织 织构 

分 类 号：TG142.77[一般工业技术—材料科学与工程]