无取向硅钢多工序残余应力的演化分析  

Analysis of Evolution of Muti-process Residual Stress in Non-oriented Silicon Steel

作　　者：朱岩 刘冬 蔡海斌 丁茹 Zhu Yan;Liu Dong;Cai Haibin;Ding Ru(R&D Center of Wuhan Iron&Steel Co.Ltd.,Baosteel Central Research Institute,Wuhan 430080,Hubei;Hot Rolling Mill of Baosteel Wuhan Iron and Steel Co.Ltd.,Wuhan 430080,Hubei)

机构地区：[1]宝钢股份中央研究院武钢有限技术中心,湖北武汉430080 [2]武汉钢铁有限公司热轧厂,湖北武汉430080

出　　处：《武汉工程职业技术学院学报》2024年第4期7-9,21,共4页Journal of Wuhan Engineering Institute

摘　　要：针对无取向硅钢开卷应用时发生翘曲的现象,对某牌号无取向硅钢板在退火、精整、卷取三种工艺和自然时效前后的硅钢板进行了残余应力检测以及金相组织的观测,发现了不同工艺对硅钢板残余应力的影响。结果表明,轧硬板具有较高的残余应力水平且其横向残余应力要大于轧向残余应力,退火能有效的降低轧硬板的残余应力,残余应力的降低幅度最高可达50%。精整能有效的均衡硅钢板的残余应力,使差异较大的残余应力趋于一致。卷取可能会较大的增加钢卷内圈部分的残余应力。自然时效能有效的降低无取向硅钢卷的横向残余应力,而对轧向残余应力效果很小。In view of the warping phenomenon of non-oriented silicon steel during coil opening for application,the residual stress of a certain brand of non-oriented silicon steel plate before and after annealing,finishing,curling and natural aging was detected and the metallographic structure was observed.The influence of different processes on the residual stress of the silicon steel plate was found.The corresponding law between residual stress and metallographic structure was explored.The results show that the residual stress level of the rolled hard plate is higher and the horizontal welding residual stress is greater than the rolling residual stress.Annealing can effectively reduce the residual stress of the rolled hard plate,and the reduction of the residual stress can be up to 50%.The finishing can effectively balance the residual stress of the silicon steel plate and make the residual stress with large anisotropy tend to be isotropic.Coiling may greatly increase the residual stress in the inner ring part of steel coil.The natural efficiency can effectively reduce the horizontal welding residual stress of non-silicon steel coil,but has little effect on the rolling residual stress.

关 键 词：无取向硅钢 残余应力 翘曲 无取向电工钢 

分 类 号：TG156[金属学及工艺—热处理]