Ⅰ型扁钢轧制过程数值模拟  

Simulation on rolling process of Ⅰ shape steel

作　　者：张白秋[1,2] 汪杰[1] 章小峰[1] 张龙[1] 黄贞益[1] ZHANG Bai-qiu WANG Jie ZHANG Xiao-feng ZHANG Long HUANG Zhen-yi(School of Metallurgical Engineering, Anhui University of Technology,Maanshan 243002,China Xinxing Cathay International Group, Beijing 100020,China)

机构地区：[1]安徽工业大学冶金工程学院,安徽马鞍山243002 [2]新兴际华集团有限公司,北京100020

出　　处：《轧钢》2016年第4期35-38,共4页Steel Rolling

摘　　要：本文Ⅰ型扁钢的生产坯料为钢带经卸卷、分条轧制后的窄钢条。采用有限元软件Msc.Marc建立了规格为25mm×5mm×3mm的Q235Ⅰ型扁钢4道次热连轧的弹塑性有限元模型,研究了轧件在轧制过程中的变形情况、等效应力、等效塑性应变的变化规律。结果表明:轧件在立轧道次会出现轻微的狗骨形,平轧道次会出现轻微的单鼓形;轧件横断面的中间部位等效塑性应变较大;轧件边角部等效应力较大,轧制过程中易出现质量缺陷。In this paper,the blanks of I shape steel is narrow steel bars which result from the discharging and slitting rolling of strip steel. The software of MSC. Marc was used to establish an elastic-plastic finite element model to simulate the Q235 I shape steel hot rolling process which has four continue rolling passes, the specification of the product was 25 mm ×5 mm× 3mm. The variation of rolling piece＇s deformation, equivalent plastic stress and equivalent strain were studied. The simulation results indica- ted that the dog bone-shaped was appeared after vertical-rolling and one drum-shaped was appeared after horizontal- rolling. The equivalent plastic stress was larger in the middle of the workpiece cross-section, and the equivalent strain was larger in the side and corner of workpiece that would lead the quality defects during the rolling process.

关 键 词：I型扁钢 热连轧 数值模拟 等效塑性应变 等效应力 

分 类 号：TG335.57[金属学及工艺—金属压力加工]