Abstract: The effect of 0. 26% ~0. 95% Al content on structure, texture and magnetic performance of 0. 5 mm cold rolled sheet of 2. 2% Si non-oriented silicon steel has been studied by a 25 kg vacuum induction furnace smelting, and forging-rolling in laboratory. Results show that as 0. 26% ~0. 81% Al, with increasing Al content in steel the grain size of annealed finished sheet increases while iron loss of sheet decreases, and as Al content in steel is more than 0. 81 %, the grain size of sheet decreases while iron loss increases, but there is no obvious regular for the effect of Al content in steel on magnetic induction performance of silicon steel sheet. The suitable Al content in 2. 2% Si non-oriented silicon steel sheet is 0. 48% ~0. 81%.

摘要： 通过实验室25 kg真空感应炉冶炼和锻轧研究了0.26%～0.95%Al含量对0.5 mm 2.2%Si无取向硅钢冷轧板组织、织构和磁性能的影响。试验结果表明,0.26%～0.81%Al含量时,随钢中Al含量的增加,成品退火钢板的晶粒尺寸增加同时铁损减少;当Al含量大于0.81%时,随Al含量增加,钢板的晶粒尺寸减小,同时铁损增加。Al含量对硅钢板磁感的影响没有明显的规律。2.2%Si无取向硅钢的合适Al含量为0.48%～0.81%。