连铸结晶器振动喂钢带对铸坯组织影响  

Effects of continuous casting vibration feeding strip on the slab structure

作　　者：于林辉 李继东[1,2] 沈明钢 王一雍[2] 张保国[2] 韩楚菲 

机构地区：[1]营口东邦冶金设备耐材有限公司,辽宁营口115100 [2]辽宁科技大学,辽宁鞍山114051

出　　处：《炼钢》2014年第6期75-78,共4页Steelmaking

基　　金：国家国际合作专项项目(2013DFR70500)

摘　　要：以低碳钢种Q235B、250 mm×1 600 mm铸坯为研究对象,在某钢厂采用连铸结晶器振动喂钢带技术,往连铸结晶器钢水中喂送低碳钢带。研究了连铸结晶器振动喂钢带对铸坯的组织结构以及性能的影响,结果表明,采用连铸结晶器振动喂钢带技术,连铸坯中心疏松与宏观偏析分散且有所减轻,可改善其宏观组织结构质量,降低轴向区域化学非均质性,以及提高厚轧板的可塑性。Taking low carbon steel Q235B, 250 mm× 1 600 mm billet as research object, effects of the vibration feeding steel strip on the slab structure and performance was studied in one steel mill. Results show that, porosity in the center of cast billet and macro segregation of dispersion decreased through the continuous casting mould vibra- tion feeding steel strip technology, which can improve the quality of macro structure and reduce the chemical heterogeneity shaft direction to the regional and then improve the plasticity in thick rolling plate.

关 键 词：连铸 等轴晶 结晶器 喂钢带 

分 类 号：TF777[冶金工程—钢铁冶金]