无取向电工钢孔洞缺陷控制实践  

Control practice on hole defect of non-oriented electrical steel

作　　者：章鸣 武战军[1] 肖丰 周云[1] ZHANG Ming;WU Zhanjun;XIAO Feng;ZHOU Yun(Maanshan Iron and Steel Co.,Ltd,Maanshan 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司,安徽马鞍山243000

出　　处：《电工钢》2022年第1期40-43,共4页ELECTRICAL STEEL

摘　　要：针对马钢无取向电工钢孔洞缺陷的分布规律及形貌特征,对缺陷样进行了显微分析,并利用生产实绩数据分析了该缺陷产生的原因。结合热轧生产过程,主要通过避免带钢撞击导卫以及降低导卫结瘤的产生等措施,可有效抑制热卷异物压入产生,从而降低冷轧工序孔洞的产生。In viewing of the distribution and morphology characteristics of the hole defect of non-oriented electrical steel in Maanshan Iron and Steel Co.,Ltd.,the causes of the defect were analyzed by micro analysis of the defect sample and the production data.Combined with the production process of hot rolling,by avoiding the impact of strip steel on the guide and reducing the nodule formation on the guide,the pressing of foreign bodies in hot coiling could be effectively suppressed,thus reducing the formation of hole defect in cold rolling process.

关 键 词：孔洞 无取向电工钢 表面质量 

分 类 号：TG142.77[一般工业技术—材料科学与工程] TG335.11[金属学及工艺—金属材料]