退火温度对3.0%Si冷轧无取向硅钢组织及性能的影响  

Effect of annealing temperature on microstructure and properties of 3.0%Si cold rolled non-oriented silicon steel

作　　者：刘青松 裴英豪[1] 施立发[1] 夏雪兰[1] 程国庆 祁旋 LIU Qingsong;PEI Yinghao;SHI Lifa;XIA Xuelan;CHENG Guoqing;QI Xuan(Technology Center,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技术中心,安徽马鞍山243000

出　　处：《电工钢》2022年第2期9-13,共5页ELECTRICAL STEEL

基　　金：安徽省自主创新专项(11010202175)。

摘　　要：为探索退火温度对薄规格3.0%Si无取向硅钢组织及电磁性能的影响,借助多气氛连续式退火炉模拟不同退火温度对冷轧0.25 mm厚度3.0%Si无取向硅钢电磁性能、组织以及织构的影响。结果表明:退火温度从850℃提高到975℃,铁损P_(1.5/50)与P_(1.0/400)均逐渐降低;退火温度超过950℃时,铁损P 1.5/50基本稳定在1.47 W/kg左右,退火温度超过975℃时,铁损P_(1.0/400)逐渐增加;随着退火温度的增加,{111}〈121〉、{111}〈110〉等难磁化织构强度增加速度高于{001}面织构,磁感B 50降低。综合退火温度对磁感和铁损的影响,温度为975℃时可以获得较好的电磁性能,临界晶粒尺寸为125μm,工业化生产中最佳退火温度在950~975℃之间。In order to explore the effect of annealing temperature on the microstructure and electromagnetic properties of a thin gauge 3.0%Si non-oriented silicon steel,the effects of different annealing temperatures on electromagnetic properties,microstructure and texture of cold rolled 0.25 mm thick 3.0%Si non-oriented silicon steel were simulated by means of a multi atmosphere continuous annealing furnace.The results showed that,the iron loss P_(1.5/50) and P_(1.5/400) gradually decreased as the annealing temperature increased from 850℃to 975℃.When the annealing temperature exceeded 950℃,the iron loss P_(1.5/50)was about 1.47 W/kg,and when the annealing temperature exceeded 975℃,the iron loss P 1.5/400 gradually increased.As the increase of annealing temperature,the increase of hard magnetize textures of{111}〈121〉,{111}〈110〉etc.was faster than{001}texture,and the magnetic induction B 50 was decreased.Considering the effect of annealing temperature on magnetic induction and iron loss,better electromagnetic properties can be obtained when the annealing temperature is 975℃,then the critical grain size is 125μm.The optimum annealing temperature in industrial production is 950~975℃.

关 键 词：退火温度 无取向硅钢 铁损 磁感 组织 

分 类 号：TG156.2[金属学及工艺—热处理] TG142.77[金属学及工艺—金属学]