弧形连铸机矫直区辊列曲线设计  

Roller apron design in the straightening zone of arc type continuous casters

作　　者：韩培培 任廷志[2] 金昕[2] 何晓楠[2] 唐键 

机构地区：[1]河北港口集团港口机械有限公司,河北秦皇岛066004 [2]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004

出　　处：《机械设计》2017年第6期50-54,共5页Journal of Machine Design

基　　金：国家科技支撑计划课题资助项目(2011BAF15B01);河北省自然科学基金资助项目(E2016203339)

摘　　要：基于高温铸坯材料的本构方程,建立了铸坯变形的数学模型。分析了多点矫直法与连续矫直法力学模型下铸坯的变形,以及多点矫直法与连续矫直法的矫直曲线,以此为基础提出了一种新型连续矫直曲线作为矫直区辊列布置曲线,该曲线考虑了矫直区辊子的施力特点并且充分利用了矫直区的长度,使矫直区内的辊列适应了铸坯的变形,并且进一步降低铸坯的应变速率。根据某工业弧型连铸机的设备工艺参数,对矫直区辊列曲线进行了设计,并与现有的连续矫直曲线进行了对比。最后,对比了两种矫直方法中铸坯的应变速率。Based on the constitutive equation of steel at elevated temperature,a mathematical model of the strand deformation is developed.The strand deformation with the multiple-point straightening method and the continuous straightening method are analyzed as well as the roller apron in the two methods,and then a new continuous straightening curve which the roller apron arranged along is presented,this method takes into consideration the features of the forces applied on the strand in the roll apron and takes full use of the straightening area,the roll apron accommodates the strand deformation and the strain rate of the strand is lower comparing with the continuous straightening method.Based on the parameters of an industrial continuous caster,the roller apron in the straightening zone is designed,then a comparison is made between this method and the continuous straightening method.Finally,the curve equation and the strain rate of the strand with the new method and the continuous straightening method are computed respectively.

关 键 词：连铸 连续矫直 应变 应变速率 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]