中低牌号无取向电工钢轧制工艺研究

来源期刊：钢铁2011年第3期

论文作者：李正荣 李军 刘勇 罗击 李卫平 叶晓瑜

文章页码：42 - 46

关键词：无取向； 电工钢； 轧制

Key words：non-oriented； electrical steel； rolling

摘    要：热轧轧制工艺对产品性能和轧制稳定性影响很大,对中低牌号无取向电工钢,当在两相区轧制时,热轧塑性明显降低,板形变坏,易出现边裂等情况。以50W1000为例,通过对其变形抗力进行研究,得出把两相区控制在F4与F5之间为最佳轧制工艺的结论。在此基础上制定了一套较为合理的热轧工艺制度。采用新的轧制工艺后,50W1000热轧精轧的稳定性明显改善,热轧产品合格率由开发初期的40%左右提高到95%以上。

Abstract: The hot rolling process has great influence on product′s performance and rolling stability.For the low medium grade non-oriented electrical steel,when non-oriented electrical steel is rolled in tow phase region,the hot rolling plasticity reduces obviously,the shape of strip goes bad and easily to crack at the edge.The deformation resistance of 50W1000 steel was investigated.The results show that the optimal rolling process is to control the two phase region between F4 and F5.Based on the results mentioned above,a more rational system of hot rolling process was developed.After using the new rolling process,the 50W1000 hot rolling finish rolling stability was evidently improved,the hot-rolled product rate was increased from about 40% to more than 95%.