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本发明是用含Si>2.5％、A1>1.0％的高A1电工钢,生产出在强磁场下磁通密度B_(50)≥1.67、铁损W_(15/50)≤2.7W/kg(0.50mm)和≤2.20W/kg(0.35mm)的S_7级或S_8级磁性优良的无取向电工钢板(带)。
In the invention, a high A1 electric steel containing Si> 2.5% and A1> 1.0% is used to produce a magnetic flux density B 50 (50) ≥ 1.67 in a strong magnetic field and an iron loss W 15/50 ≦ 2.7 W / kg 0.50mm) and S2.20 or 0.35mm S_7 class or S_8 grade magnetism good non-oriented electrical steel plate (band).