IF steel trimming quality improvement control technology
YAN Lei1, SUN Jian-hua1, SUN Yue2, YU Yang3, LI Shuo3, WANG Lin3
1. Beijing Shougang Cold Rolled Sheet Co., Ltd., Beijing 101304, China; 2. Fourth Branch, Beijing Gas Group Co., Ltd., Beijing 102600, China; 3. Qianshun Technology Center, Technology Research Institute of Shougang Group Co., Ltd., Beijing 100041, China
摘要 针对 IF 钢经过连退或镀锌热处理,在切边过程中由于切边质量不佳,带钢边部容易产生毛刺等缺陷,进而影响带钢边部质量的问题,通过研究切边后带钢切断面各区域比例以及切边工艺参数对切边后切断面各区域比例的影响,对圆盘剪切边工艺参数进行了优化设计;同时通过研究去毛刺辊工作原理以及亮边缺陷产生原因,对去毛刺辊的涂层和底辊辊型进行了优化设计。采取优化措施后,IF 钢的切边质量得到了改善,并彻底消除了亮边缺陷。
Abstract：For the IF steel that has undergone continuous annealing or hot-dip galvanizing heat treatment, due to the poor quality of trimming, defects such as burrs are prone to occur on the edge of strip during the trimming process, which in turn affects the quality of strip edge. Through the research on the proportion of each area on cut surface of strip after trimming and the influence of trimming process parameters on the proportion of each area on the cut surface after trimming, the process parameters of disc shearing edge were optimized. The working principle of deburring roll and the causes of bright edge defects were studied, and the coating of deburring roll and the roll shape of bottom roll were optimized. After the optimization measures are taken, the trimming quality of the IF steel is improved and the bright edge defects are completely eliminated.
闫磊, 孙建华, 孙悦, 于洋, 李硕, 王林. IF钢切边质量提升控制技术[J]. 中国冶金, 2022, 32(7): 103-106.
YAN Lei, SUN Jian-hua, SUN Yue, YU Yang, LI Shuo, WANG Lin. IF steel trimming quality improvement control technology[J]. China Metallurgy, 2022, 32(7): 103-106.
2022, Vol. 32 
