卷取温度对0.5%Si无取向硅钢组织和磁性能的影响

Effect of coiling temperature on microstructure and magnetic properties of 0.5% Si non-oriented silicon steel

基于工业生产,研究了卷取温度对0.5%Si无取向硅钢组织和磁性能的影响。结果表明,卷取温度由600℃提升至700℃,热轧组织均匀且晶粒尺寸变大;冷轧退火后成品晶粒尺寸也随之变大,退火成品有利织构组分增加,不利织构组分减少,退火成品铁损降低,磁感升高。当卷取温度为700℃时,成品磁性能更优,铁损P_(1.5/50)为5.329W/kg,磁感B_(50)为1.762T。

The effects of coiling temperature on the microstructure and magnetic properties o f0.5%Si non-oriented silicon steel were studied under industrial production.The results showed that when the coiling temperature increased from 600℃to 700℃,the microstructure of the hotrolled steel was more uniform,the grain size of the hot-rolled steel and the annealed steel was larger,and the favorable texture components was increased and the unfavorable texture components was decreased,which reduced the core loss and rose the magnetic induction of the annealed steel.When the coiling temperature was 700℃,the magnetic properties of the annealed steel were better,with the core loss P1.5/50 of 5.329 W/kg and the magnetic induction B50 of 1.762 T.