基于屈曲失稳判据的冷连轧断面形状可变域求解  

Calculation of the allowable variation of transverse profile for cold rolled strips based on the buckling criterion

作　　者：王晓晨[1] 杨荃[1] 彭鹏[1] 孙文权[1] 刘天武[1] 

机构地区：[1]北京科技大学冶金工程研究院,北京100083

出　　处：《北京科技大学学报》2009年第11期1447-1451,共5页Journal of University of Science and Technology Beijing

基　　金："十一五"国家科技支撑计划专题"高品质薄板板形控制技术"(No.2006BAE03A13)

摘　　要：由于冷轧过程的大张力轧制特点以及金属横向流动性与热轧有很大区别,因此在热轧中广泛应用的Shohet判别式不能很好应用于冷轧.在对冷轧大张力条件下的板形生成机理进行分析的基础上,提出能够更好适用于冷轧的基于屈曲失稳判据的断面形状可变域求解方法,该方法可以求解得到针对不同屈曲模态的产品断面形状可变域与来料断面形状允许范围.将该方法应用于国内某连轧机生产,给出其来料断面形状允许范围,比原有允许范围更符合现场实际且内容更为完善.Due to the characteristic of high tension during cold rolling and the transverse flow in cold rolling different from hot rolling, the Shohet criterion, which is universally used in hot rolling, is not applicable to cold rolling. The formation mechanism of cold rolled strip shapes under high tension was analyzed and a method to calculate the allowable variation of strips＇ transverse profile was proposed for cold rolling based on the buckling criterion. The allowable variation of transverse profiles of product strips and the required transverse profile range of incoming strips can be calculated by using the method. This method has been successfully applied in a domestic tandem cold mill and the transverse profile range of incoming strips suggested is more practicable and complete than before.

关 键 词：冷连轧 张力 屈曲 断面形状 

分 类 号：TG335.12[金属学及工艺—金属压力加工]