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研究了含硅3%的立方织构和戈斯织构硅铁薄带纵向磁退火效应,得出硅铁薄带的纯度、晶格的完整性(杂质、内应力、缺陷)明显影响这种效应。磁退火后,高纯硅铁薄带(0.05mm)的磁性获得重要改善:B_0.5≈14.5~15.5千高斯,μm=58000~63000,频率400赫时,磁感10千高斯和15千高斯的损耗分别为4.3和10.7瓦/公斤,这与磁退火能得到较完整的180°反平行磁畴结构有关。试验中还在交变磁化状态下观测了硅铁薄带的μp—f,μp—H,f/p—f,及η—f变化曲线。得出较低频率下(约<1000赫),磁退火的高纯试样具有良好的动态特性,频率增高时,由于磁畴数目增加,畴壁速度减小,磁性接近于均匀,故不再显示磁退火效应。
The effect of longitudinal magnetic annealing on the cubic texture with 3% Si and the ferromagnetic Fe-Si ferromagnetic ribbon was studied, and the purity of the Fe-Si ribbon and the lattice integrity (impurities, internal stress and defects) were significantly affected effect. Magnetically annealed, the magnetic properties of high-purity ferrosilicon strip (0.05mm) are significantly improved: B_0.5≈14.5 ~ 15.5KG, μm = 58000 ~ 63000, magnetic induction of 10KG and 15KG Loss of 4.3 and 10.7 watts / kg, respectively, which is related to the complete 180 ° anti-parallel magnetic domain structure obtained by magnetic annealing. In the experiment, μp-f, μp-H, f / p-f, and η-f curves of ferrosilicon ribbon were also observed under alternating magnetization. The results show that the magnetically annealed high purity samples have good dynamic properties at lower frequencies (about <1000 Hz). When the frequency is high, the number of magnetic domains is increased, the domain wall speed is reduced and the magnetic properties are close to uniform. Show the magnetic annealing effect.