六辊CVC平整机横向辊印缺陷分析与控制
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摘要
为解决某厂六辊CVC平整机换辊后出现的横向辊印缺陷问题,采用三维光学轮廓仪对横向辊印缺陷样板进行了检测与分析,获得缺陷区域与正常区域的表征参数差异。研究了平整机辊缝闭合过程辊间接触压力分布,确定横向辊印缺陷的产生机理。在此基础上,提出了平整机中间辊CVC辊形优化与辊缝闭合过程参数优化解决方案,并应用于工业生产,消除了横向辊印缺陷。
According to the lateral roll mark defect after roll changing on 6-H CVC temper mill,the sample plate of lateral roll mark was tested and analyzed by the 3 Dsurface profiler.The differences in the representation parameters of the defect area and the normal area were obtained.The distribution of the contact pressure between the rolls was studied,and then the generation mechanism of lateral roll mark was found out.On this basis,the control measures for the optimization of CVC roll profile and roll gap closing speed were put forward.The measures were used in the industrial production,and the lateral roll printing defect was eliminated.
According to the lateral roll mark defect after roll changing on 6-H CVC temper mill,the sample plate of lateral roll mark was tested and analyzed by the 3 Dsurface profiler.The differences in the representation parameters of the defect area and the normal area were obtained.The distribution of the contact pressure between the rolls was studied,and then the generation mechanism of lateral roll mark was found out.On this basis,the control measures for the optimization of CVC roll profile and roll gap closing speed were put forward.The measures were used in the industrial production,and the lateral roll printing defect was eliminated.
引文
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[2]李光赢,周积智.高等级汽车板的开发与应用[J].钢铁研究学报,2007,24(增刊1):1.
[3]任新意,王松涛,高慧敏,等.冷轧薄规格高强钢表面斜纹缺陷分析与控制[J].中国冶金,2017,27(10):59.
[4]魏宝民,侯彬,王松尧,等.R2级表面镀锡板平整过程轧辊粗糙度衰减控制技术研究[J].塑性工程学报,2017,24(3):143.
[5]韩志勇,张明达,徐海峰,等.高性能汽车钢组织性能特点及未来研发方向[J].钢铁,2016,51(2):1.
[6]李文波,宋丹,肖激杨,等.宽规格汽车板沉没辊印成因分析及控制技术[J].中国冶金,2017,27(12):53.
[7]陈海波.粗糙表面特征的表征、测量和模拟[D].北京:清华大学,2007.
[8]张丹,叶校瑛,任秋红,等.双传感器表面检测系统在镀锌线上的应用[J].中国冶金,2017,27(9):48.
[9]刘莹,陈大融,秦力.平整轧制表面形貌复映关系的主要影响因素研究[J].钢铁,2003,38(5):36.
[10]杜文慧.冷轧带钢湿平整工艺的研究[D].上海:华东理工大学,2014.
[11]吴彬,张清东,张晓峰.粗糙表面镀锡基板连退平整轧制过程表面控制[J].中国冶金,2012,22(9):51.
[12]张晓峰,李瑞,张勃洋,等.平整轧制过程中带钢表面形貌的生成模型[J].机械工程学报,2013,49(14):38.
[13]李洪波,张杰,曹建国,等.三次CVC、五次CVC及SmartCrown辊形控制特性对比研究[J].中国机械工程,2009,20(2):237.
[14]张清东,孙向明,白剑.六辊CVC轧机辊系变形的有限元分析[J].中国机械工程,2007,18(7):789.