静压延时矫直策略在头部翘曲板材矫直过程中的应用  

Application of Static Press Leveling for Front End Bending Plate During Roller Leveling Process

作　　者：崔丽[1] 张艳肖[1] 田禾[1] 

机构地区：[1]中航工业沈阳飞机工业(集团)有限公司

出　　处：《航空制造技术》2014年第22期151-154,共4页Aeronautical Manufacturing Technology

摘　　要：随着厚规格、高强度品种钢的大量开发,头部翘曲成为中厚板生产过程中的一种常见缺陷,同时国产化的矫直机矫直能力不足,使得头部翘曲板材矫直过程困难。以某板卷厂开发厚规格、高强度品种钢过程中,频繁出现头部翘曲呈蛇形问题为依托,采用弹塑性差分的曲率积分方法,分析头部翘曲板材的传统矫直策略中残余曲率与矫直力的变化,讨论传统矫直策略和静压延时矫直策略的选择原则,研究静压延时矫直工艺。某板卷厂现场证明:静压延时矫直可以有效解决头部翘曲板材矫直问题,同时改善板材的板形。Front end bending is a common defect for plate production with the massive development of new steel grades and thickness plates.At the same time the capacity of domestic lever is so low that it is difficult to level the front end plate.Based on the problem of some steel mill,the residual curvature and leveling force during tradition leveling strategies for the leveling of front end plate are analyzed by adopting the curvature integration by elastic-plastic differences to discuss the applicable condition of static press leveling and the leveling regulations are also investigated.In particular,the static press leveling is turned out to be a good way to level the front end bending plate by the mill.

关 键 词：辊式矫直 静压延时矫直 头部翘曲 残余曲率 

分 类 号：TG335[金属学及工艺—金属压力加工]