高表面汽车用O5板结晶器液面波动原因分析与控制  

ANALYSIS AND CONTROL OF LIQUID LEVEL FLUCTUATION IN CONTINUE CASTING MOLD FOR O5 GRADE AUTOMOBILE PLATE WITH HIGH SURFACE QUALITY

作　　者：姜丽梅 王旭 韩闯闯 程迪 Jiang Limei;Wang Xu;Han Chuangchuang;Cheng Di(HBIS Group Hansteel Company)

机构地区：[1]河钢集团邯钢公司,河北邯郸056015

出　　处：《河南冶金》2024年第5期44-48,共5页Henan Metallurgy

摘　　要：结合邯钢O5板生产实际,系统分析了O5板结晶器液面波动的影响因素。通过采取优化连铸保护浇注、合理调整中间包吹氩、规范浸入式水口更换制度、加强设备精度管理等措施,中间包全氧含量平均控制在0.0021%以内,O5板结晶器液面波动不小于±5 mm的比例由原来的10.23%降低到4.2%,带钢夹杂缺陷率由原来的2.13%降低到0.58%,为炼钢稳态生产O5板提供了重要保证。Based on the production practice of O5 grade automobile plate in Handan Steel,the influencing factors of the level fluctuation in continue casting mold for O5 grade automobile plate are analyzed systematically.By optimizing continu-ous casting protection pouring,adjusting argon blowing in the tundish reasonably,standardizing the replacement institution of immersion nozzles and strengthening equipment accuracy management,the average total oxygen in the tundish is controlled within 0.0021%,the proportion of mould level fluctuation in continue casting mold within±5 mm decreased from 10.23%to 4.2%,and the inclusion defect rate in strip steel decreased from 2.13%to 0.58%,which provided an important guarantee for steady state production of O5 grade automobile plate.

关 键 词：O5板 液面波动 保护浇注 中间包全氧 中间包吹氩 

分 类 号：TF777[冶金工程—钢铁冶金]