五次CVC工作辊辊形与板形控制特性  

Roll Contour and Strip Profile Control Characteristics for Quintic CVC Work Roll

作　　者：李洪波[1] 张杰[1] 曹建国[1] 程方武[2] 胡伟东[2] 张艺[3] 

机构地区：[1]北京科技大学机械工程学院,北京100083 [2]武汉钢铁(集团)公司,武汉430083 [3]国家知识产权局专利局专利审查协作北京中心,北京100083

出　　处：《机械工程学报》2012年第12期24-30,共7页Journal of Mechanical Engineering

基　　金：国家高技术研究发展计划(863计划;2009AA04Z163);中央高校基本科研业务费专项资金(FRF-TP-12-049A);北京科技大学冶金研究基金(YJ2011-010)资助项目

摘　　要：连续变凸度(Continuously variable crown,CVC)轧机是宽带钢和超宽带钢轧机的主流机型,目前均采用三次CVC辊形,能较好地实现对辊缝二次凸度的连续调整,但不具备高次浪形控制能力,且对窄带钢凸度控制能力较弱。五次CVC辊形具有高次浪形控制能力,但由于缺乏系统深入的研究,尚未成功地实现工业应用。在对五次CVC辊形参数与辊缝凸度之间的关系进行深入分析的基础上,提出一种五次CVC辊形的设计方法,并对其板形控制特性进行研究,结果表明通过辊形的合理设计,五次CVC辊形能够有效均衡轧机对宽窄带钢的二次凸度控制能力,且四次凸度控制特性符合宽带钢轧机尤其是超宽带钢轧机的板形控制需求。进一步分析五次CVC辊形与现已开发的多种变凸度工作辊辊形之间的关系,认为五次CVC辊形能几乎替代目前常用变凸度工作辊辊形,具有极强的推广应用价值。Continuously variable crown mill is the main mill type for wide and super wide strip production, and cubic CVC roll contour is widely applied, which can continuously adjust the quadratic crown of roll gap effectively, but can＇t control the high-order wave defect, and especially has the insufficient quadratic crown control capability to narrow strip steel. Quintic CVC roll contour has high-order crown control ability, but hasn＇t been put into production successfully, due to the lack of systematic and further research. After analysis of the relation between quintic CVC roll contour parameters and roll gap crowns, a design method of quintie CVC roll contour is proposed, and the crown control characteristics are analyzed. It is showed that rational design of quintic CVC roll contour can equalize the quadratic crown control capability of wide and thin strips, and its quartic crown control characteristic match the demand of strip profile control for wide strip mill, especially super wide strip mill. Then the analysis of the relationship between quintie CVC roll contour and other variable crown work roll contours is conducted, which shows that quintic CVC roll contour can substitute for the other developed variable crown roll contours almost, so the quintic CVC roll contour has better value for popularization.

关 键 词：轧制 连续变凸度 辊形 凸度 板形控制 

分 类 号：TG333[金属学及工艺—金属压力加工]