Abstract:  The sheet of Hi-B high magnetic induction oriented silicon steel (/% : 0. 07C, 3. 02Si, 0. 13Mn, 0. 020P, 0. 006S, 0. 21Cu, 0. 025Cr, 0. 016A1, 0. 004Sn) is produced by simulating CSP process in laboratory, the steel is melted by a 25 kg vacuum induction furnace, cast to 41 mm x 120 mm slab, hot-rolled to 2 mm plate, normalized at 1 120℃ and cold rolled to 0. 27 mm sheet. The effect of annealing at 830 ~ 870℃ for 3 ~ 7 min on recrystallized structure and texture of steel has been studied. Results show that the suitable annealing process for 0. 27 mm sheet of Cu-bearing Hi- B high magnetic induction oriented silicon steel is at 850℃ for 5 min, its average grain size is 15. 6 μm, the relative level of adverse texture [111] 〈110〉and {001}〈111〉 is lower and the distribution of favorable texture {111} 〈112〉is reasonable that is available to form favorable Goss texture in secondary recrystallization annealing process.

摘要： 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25kg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0.27mm薄板。研究了830~870℃,3~7min退火对再结晶组织和织构的影响。结果表明,0.27mm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15.6μm,不利织构{111}〈110〉和{001}〈110〉含量较低,有利织构{111}〈112〉分布合理,有利于在二次再结晶退火过程形成良好的高斯组织。

关键词: 含Cu Hi-B高磁感取向硅钢, 模拟CSP工艺, 初次再结晶退火, 组织, 织构