梅钢1422精轧机组工作辊辊型优化与应用  

Optimization of Work Roll Profile on Finishing Stands for 1422 Hot-Rolled Strip in Meisteel

作　　者：夏小明[1] 邸洪双[1] 卞皓 张永雪 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004 [2]梅山钢铁公司热轧厂,江苏南京210039

出　　处：《东北大学学报（自然科学版）》2010年第10期1424-1428,共5页Journal of Northeastern University(Natural Science)

基　　金：国家重点基础研究发展规划项目(2006CB605208-1)

摘　　要：梅钢1422轧机经改造后,板形控制水平有了明显提高,但轧制到计划的中尾部便出现不稳定,产品的凸度和平直度不能满足市场要求,尤其是供冷轧基板的大凸度要求,而且板形模型也无法正常工作.为解决这一问题,在理论分析的基础上,通过对精轧机组F1～F3机架CVC工作辊辊型曲线优化以及F4～F6机架工作辊辊型的优化,使得带钢凸度命中率由原来的87%左右提高到98%,而且降低了工作辊的辊耗,提高了一个计划的同宽公里数与总公里数.同时由于提高了轧制稳定性,稳定批量生产出1.6mm×1185mm的箱板.In Meisteel the control of strip shape has been improved obviously after reforming the finishing mill for hot-rolled strip.However,the middle part and tail of the strip become instable if the rolling process is in accordance to the rolling schedule,thus making the strip crown and flatness unsatisfiable to market demand especially the high-crown requirement of workpiece for cold rolling,with the strip shape model unable to work normally.To solve the problem,the CVC work roll profiles on the finishing stands F1～F3 and the work roll profiles on the stands F4～F6 are both optimized on the basis of theoretical analysis.Then,the hit ratio of target crown is increased from 87% to about 98% with the work roll wear-off reduced.As a result,the wearability of work rolls of the same width is scheduled in terms of kilometers,and the strip for containers（1.6？mm×1？185？mm）is therefore supplied by Meisteel in batches because of its improved rolling stability.

关 键 词：平直度 凸度 工作辊 辊型 优化 CVC 

分 类 号：TG331[金属学及工艺—金属压力加工]