退火方式对0.30%Si无取向硅钢磁导率影响规律研究  

Effects of annealing methods on the magnetic permeability of 0.30% Si non-oriented silicon steel

作　　者：祁旋 戴小华[1] 施立发[1] 裴英豪[1] 夏雪兰[1] 刘青松 QI Xuan;DAI Xiaohua;SHI Lifa;PEI Yinghao;XIA Xuelan;LIU Qingsong(Maanshan Iron and Steel Co.,Ltd.,Maanshan 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司,安徽马鞍山243000

出　　处：《电工钢》2024年第2期23-30,共8页ELECTRICAL STEEL

摘　　要：研究了罩式退火、连续退火以及不同的退火方式组合对0.30%Si无取向硅钢磁导率的影响。结果表明:较高罩式退火温度(≥680℃)能获得较高的磁导率μ1.0(≥5800 Gs/Oe),与连续退火(≥790℃带钢温度)组合,能够获得较低铁损和较高的磁导率;第一次连退温度越低,成品的各项磁性能指标提升幅度越高,在第二次连退830℃条件下,成品的磁感基本稳定;第二次低温连退下磁导率提升不明显,770℃以上磁导率提高幅度较大。综合来看,采用罩式680℃+连退830℃工艺组合方式,以及成品+连退770℃工艺组合方式成品的磁性能较优。The effects of cover annealing,continuous annealing,and combinations of different annealing methods on the magnetic permeability of 0.30% Si non-oriented silicon steel were studied.The results showed that the higher cover annealing temperature(≥680℃)can obtain a higher permeability of μ1.0(≥5800 Gs/Oe),and combined with continuous annealing(≥790℃),it can obtain lower iron loss and higher permeability.The lower the first continuous annealing temperature is,the higher the improvement in various magnetic properties of the finished product will be,and under the condition of the second continuous annealing of 830℃,the magnetic induction of the finished product is basically stable.The increase of the magnetic permeability is not obvious in second low-temperature continuous annealing,and the magnetic permeability is greatly improved when the second continuous annealing temperature above 770℃.On the whole,the better magnetic performance of the finished product is obtained in the methods of 680℃ cover annealing+830℃ continuous annealing and the finished product+770℃ continuous annealing.

关 键 词：退火方式 无取向硅钢 磁导率 

分 类 号：TG142.77[一般工业技术—材料科学与工程]