消除应力退火对半工艺电工钢组织和磁性能的影响  

Effect of Stress Relief Annealing Process on Microstructure and Magnetic Properties of Semi-processed Electrical Steel

作　　者：李月兰[1] 施立发[1] 裴英豪[1] 丁萍[1] 

机构地区：[1]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000

出　　处：《安徽工业大学学报（自然科学版）》2012年第3期220-223,共4页Journal of Anhui University of Technology（Natural Science）

基　　金：安徽省科技攻关项目(11010202175)

摘　　要：为改善半工艺电工钢产品的磁性能,借助NIM2000E电工钢交流磁性能测量系统,采用方圈测量方法研究消除应力退火工艺对半工艺电工钢磁性能、组织的影响。结果表明：在760~790℃×2 h退火时,组织为粗大均匀的等轴铁素体晶粒,平均晶粒尺寸在200μm左右,铁损P1.5/50小于3.5 W/kg,磁感应强度B50高于1.70 T,对应的磁导率μ1.0高于12.57 mH/m。In order to improve magnetic properties of products of semi-process electrical steel,effect of stress relief annealing process on the magnetic properties and microstructure of semi-processed electrical steel was investigated with NIM2000E electrical steel exchange magnetic measurement system and circle measurement method.Results show that when the steel is annealed at 760~790 ℃ for 2 h,the microstructure is coarse homogeneous equiaxed ferrite,and the bimodal grain size is about 200 μm,the iron loss P1.5/50 is less than 3.5 W/kg,magnetic induction B50 is higher than1.70 T,and the corresponding magnetic conductance μ1.0is higher than 12.57 mH/m.

关 键 词：消除应力退火 磁性能 半工艺电工钢 

分 类 号：TG142.77[一般工业技术—材料科学与工程]