Abstract: The  effect  of  main   element-0.015～0.070C,1.21～2.30Si,0.25～0.33Mn,0.013～0.018P, 0.008~0.017S,0.002～0.210Al in low grade cold rolled non-oriented electrical steel on core loss has been studied by the process of 50 kg vacuum induction furnace steelmaking - 100 mm×25 mm slab forging -2 mm strip hot rolled by 350 four high mill-0.5 mm strip cold rolled by 350 four high mil.Results showed that with increasing carbon,phosphorus, sulphide,manganese content in steel the core loss of cold rolled non-oriented electrical steel obviously increased; with in- creasing silicon content in steel the core loss decreased and as aluminum with nitrogen formed fine AlN particles to prevent grain growing up in steel,the core loss increased with increasing aluminum content in steel.

摘要： 通过50 kg真空感应炉熔炼-锻造成100 mm×25 mm板坯-350四辊轧机热轧2 mm带材-350四辊冷  轧机轧成0.5mm带材流程，研究了主要元素(%)-0.015~0.070C、1.21~2.30Si、0.25～0.33Mn、0.013～0.018P、 0.008~0.017S、0.002～0.210Al对低牌号冷轧无取向电工钢铁损的影响。结果表明，随钢中碳、磷、硫、锰含量的 增加，冷轧无取向电工钢铁损明显增加；随硅含量增加，钢的铁损降低；铝与钢中的氮形成细小的AlN颗粒，阻碍钢 材晶粒长大，随钢中铝含量增加，铁损增加。