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在实验室用模拟CSP工艺试制Hi-B高磁感取向硅钢薄板(/%:0.07C,3.02Si,0.13Mn,0.020P,0.006S,0.21Cu,0.025Cr,0.016A1,0.004Sn),该钢经25 kg真空感应炉熔炼,铸成41 mm×120 mm板坯-热轧成2mm板-1 120℃常化-冷轧成0.27 mm薄板。研究了830~870℃,3~7 min退火对再结晶组织和织构的影响。结果表明,0.27 mm含Cu Hi-B高磁感取向硅钢板的合适退火工艺为830℃5 min,其平均晶粒尺寸为15