热轧薄板等间距纵向条纹产生机制及控制策略
发布时间：2018-11-24 08:33
【摘要】：热轧过程引入的带钢表面等间距纵向条纹缺陷,经后工序酸洗、冷轧、连续退火等处理均无法彻底消除,严重影响成品表面质量。通过全流程缺陷演变研究及工艺试验,确认了该缺陷是由热轧精轧末机架工作辊辊面磨削螺旋纹在轧制过程中转印至带钢表面所致。磨削过程中砂轮平面与轧辊辊面曲线的接触匹配不当、磨辊工艺参数不合适等因素会导致磨削螺旋纹的产生。通过优化精轧工作辊CVC辊形及轧辊磨削参数,彻底消除了轧辊表面磨削螺旋纹以及由此导致的热轧薄板表面等间距纵向条纹缺陷。
[Abstract]:The defects of strip surface equal spacing longitudinal stripe introduced in hot rolling process can not be completely eliminated by acid pickling, cold rolling and continuous annealing, which seriously affect the surface quality of finished products. Through the research on the evolution of the defect in the whole process and the process test, it is confirmed that the defect is caused by the grinding of the helical grain of the work roll surface of the finishing stand of the hot rolling mill to the surface of the strip steel during the rolling process. In the grinding process, the contact between the grinding wheel plane and the roller surface curve is not matched properly, and the technological parameters of the grinding roller are not suitable, which will lead to the production of the grinding spiral grain. By optimizing the CVC roll shape and the grinding parameters of the finished work roll, the defects of the spiral grain grinding on the surface of the roll and the equal spacing longitudinal stripe on the surface of the hot rolled sheet are completely eliminated.
【作者单位】： 首钢集团总公司技术研究院薄板研究所;首钢股份公司迁安钢铁公司技术质量部;
【分类号】：TG335.5
[Abstract]:The defects of strip surface equal spacing longitudinal stripe introduced in hot rolling process can not be completely eliminated by acid pickling, cold rolling and continuous annealing, which seriously affect the surface quality of finished products. Through the research on the evolution of the defect in the whole process and the process test, it is confirmed that the defect is caused by the grinding of the helical grain of the work roll surface of the finishing stand of the hot rolling mill to the surface of the strip steel during the rolling process. In the grinding process, the contact between the grinding wheel plane and the roller surface curve is not matched properly, and the technological parameters of the grinding roller are not suitable, which will lead to the production of the grinding spiral grain. By optimizing the CVC roll shape and the grinding parameters of the finished work roll, the defects of the spiral grain grinding on the surface of the roll and the equal spacing longitudinal stripe on the surface of the hot rolled sheet are completely eliminated.
【作者单位】： 首钢集团总公司技术研究院薄板研究所;首钢股份公司迁安钢铁公司技术质量部;
【分类号】：TG335.5
【参考文献】
相关期刊论文 前9条
1 于洋;唐帅;郭晓波;关菊;王国栋;刘s，
本文编号：2352993
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