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Based on the manufacture of efficient non-oriented silicon steel grade,the effects of tin and sulphur on magnetism and its interaction was discussed.The results showed that for present work,minor tin could improve magnetic induction sharply and had little effect on core loss when the sulphur content below 10×10~(-4)%.The precipitation of AlN could be prohibitted by tin,remarkably.As the nucleus,tin could removal any inclusions which size was 0.5μm or above,and had little effect on inclusions which size was below 0.5μm as a key factor for core loss.For final sample,the magnetic induction was improved through the change of steel texture by tin.The relationship between magnetic induction and tin,sulphur content could be regressed:B = 1.69 - 4.37S + 0.30Sn.From the regression formulation,magnetic induction could be improved for 0.03 T when 0.01%tin was added under the condition of relatively low sulphur content.
Based on the manufacture of efficient non-oriented silicon steel grade, the effects of tin and sulphur on magnetism and its interaction was discussed. The results showed that for present work, minor tin could improve magnetic induction sharply and had little effect on core loss when The precipitation of AlN could be prohibitted by tin, remarkably. As the nucleus, tin could removal any inclusions which size was 0.5μm or above, and had little effect on inclusions which size was below 0.5μm as a key factor for core loss. For final sample, the magnetic induction was improved through the change of steel texture by tin. The relationship between magnetic induction and tin, sulphur content could be regressed: B = 1.69 - 4.37 S + 0.30Sn.From the regression formulation, magnetic induction could be improved for 0.03 T when 0.01% tin was added under the condition of relatively low sulfur content.