1780mm热连轧机带钢精轧宽度头部拉窄问题及改进  

Cause analysis of head width changing to narrow of strip during rolling on 1780 mm hot strip finishing mill and its improvement

作　　者：刘杜[1] 胡岩[1] 张保忠[1] 陈珂[1] 吴伟娟[1] 

机构地区：[1]宝钢集团宁波钢铁有限公司热轧厂,浙江宁波315800

出　　处：《冶金自动化》2012年第1期62-66,共5页Metallurgical Industry Automation

摘　　要：分析了宝钢集团宁波钢铁有限公司1 780 mm热连轧机带钢生产中出现的带钢头部拉窄的现象及原因,针对机架间秒流量存在误差和活套控制不稳定的问题,优化了L2模型参数和活套控制系统,并对工艺及操作进行了优化,有效减少了宽度头部拉窄现象,精轧头部拉窄较改进前减少了50%,从而提高了带钢头部宽度精度。The causes of head width changing to narrow of strip during rolling on 1 780 mm hot strip finishing mill are analyzed. The problem of strip head width narrowing is solved effectively through optimizing adjustment of Level-2 model parameters and Level-1 control parameters. The head width of strip accuracy is improved.

关 键 词：热轧带钢 头部拉窄 辊缝设定 活套控制 

分 类 号：TG334.9[金属学及工艺—金属压力加工]