试验研究了无取向电工钢中晶粒抑制剂的分布及尺寸规律,通过对CSP生产的无取向电工钢热轧板金相组织、沉淀析出物进行观察分析表明,CSP流程中的热轧板中的氧化物夹杂相比传统厚板坯连铸生产的热轧板中的氧化物夹杂细小,分布均匀;CSP流程中较高的终轧温度可以使晶粒发生充分的再结晶和长大,热轧板组织为相对粗大的等轴铁素体,改善了最终产品的织构组成,从而对最终产品的磁感性能产生重大影响。 The distribution and size rules of grain inhibitor in non-oriented electrical steel were experimentally studied. By observing the microstructure and precipitation of hot-rolled sheet of non-oriented electrical steel produced by CSP, it was found that in the hot-rolled sheet of CSP process Oxide inclusions are smaller and more evenly distributed in oxide inclusions in the hot-rolled sheets produced by the conventional thick slab continuous casting. The higher finishing temperature in the CSP process allows sufficient recrystallization and growth of the crystal grains, Plate organization is relatively coarse equiaxed ferrite, improving the texture composition of the final product, which has a significant impact on the magnetic properties of the final product.