2250常规热连轧楔形成因分析与控制  

Analysis and Control of Strip Wedge in 2250 Conventional Continuous Hot Rolling

作　　者：张䶮 杨荃[1] 何安瑞[1] 郭德福[1] 赵勇[2] 闻成才[2] 

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083 [2]马鞍山钢铁股份有限公司第四钢轧总厂,安徽马鞍山243011

出　　处：《钢铁》2012年第8期43-47,共5页Iron and Steel

基　　金：新世纪优秀人才支持计划资助项目(NCET-10-0223)

摘　　要：针对某2250常规热连轧产品的断面楔形问题进行研究,运用有限元法建立静态仿真模型,定量计算轧件跑偏和来料楔形遗传对热轧出口带钢断面楔度的影响,并通过实际生产数据的采集分析验证了模型计算结果的准确性。提出优化精轧立辊及侧导位的对中精度和开口度裕量,加强轧制过程对中性,并通过投用粗轧强力侧导位、优化粗轧工作辊辊形和加强手动调平控制改善粗轧来料楔形,使热连轧机组因楔形产生的板形三级品率从47%下降到10%以内,取得了明显的效果。For the product section wedge of one 2250 conventional hot continuous rolling in China,the static simulation model was established and the quantitative effect of word piece deviation and incoming wedge inherit on strip section wedge value was calculated at the outlet of hot continuous mill.The calculation results meet with the practical production.The alignment accuracy and opening gap margin of finish vertical rolling and side guide was optimized to enhance the alignment during the course of rolling.The 3rd grade shape products rate was improved from 47% to 10% through using rough rolling strong side guide,optimization on rough rolling roller contour and advanced manual leveling control to improve the incoming wedge of rough rolling.

关 键 词：热连轧 楔形 有限元法 轧件跑偏 遗传 

分 类 号：TG335.1[金属学及工艺—金属压力加工]