摘要
针对唐钢冷轧二镀锌高强度结构钢品种多,相比薄规格冷基镀锌板型不易控制,加之机组一直沿用喷淋式钝化,生产时会出现钝化斑迹、边部黄边、干燥不彻底、带钢表面划伤等缺陷.运用流体运动学,对钝化系统喷嘴数量、角度进行优化,对钝化系统辊系、边部吹扫等设备也进行一系列优化改造,板带质量明显提升.
Abstract
In response to the wide variety of high-strength structural steel products produced by The No.2 Continuous Galvanized Line of strip cold rolling plant of Tang Steel at Tangshan Iron and Steel Company,it is difficult to control the shape of thin specification cold base galvanized sheets.In addition,the unit has always used spray passivation,which may result in defects such as passivation spots,yellow edges at the edges,incomplete drying,and surface scratches on the strip steel during production.By using fluid kinematics,the number and angle of nozzles in the passivation system were optimized,and a series of optimization modifications were made to the passivation system roller system,edge blowing and other equipment,resulting in a significant improvement in the quality of the plate and strip.
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