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边部翘皮缺陷是热轧带钢常见的表面缺陷之一,具有形貌多样化、发生几率高、易于批量爆发的特点,生产中控制较为困难。本文根据宏观形貌的不同对某1 580mm热轧带钢生产线所发生的带钢边部翘皮缺陷进行归类。并采用扫描电镜对缺陷微观组织进行分析,对其形成机理进行深入探究,依据所得结论制定合理的控制方法并应用于实践,取得了良好效果。
Edge warpage defect is one of the common surface defects of hot rolled strip, with the characteristics of diverse topologies, high probability of occurrence and easy batch explosion. It is difficult to control in production. In this paper, according to the different macroscopic morphology of a 1 580mm hot-rolled strip production line occurred in the strip edge warp defects classified. Scanning electron microscopy (SEM) was used to analyze the microstructure of the defects and to explore its formation mechanism. Based on the conclusions obtained, a reasonable control method was established and put into practice, which achieved good results.