连铸浸入式水口结瘤和堵塞的原因分析及控制措施  

Reasons and Countermeasure of Clogging and Blockage of Submerged Entry Nozzle During Continuous Casting

作　　者：刘成宝 何毅 王毅 许荣昌 LIU Chengbao;HE Yi;WANG Yi;XU Rongchang(Research Institute of Shandong Iron and Steel Co.,Ltd.,Jinan 250101,China)

机构地区：[1]山东钢铁股份有限公司研究院,山东济南250101

出　　处：《山东冶金》2020年第3期12-15,共4页Shandong Metallurgy

基　　金：山东省重大科技创新项目(项目编号:2018YFJH0101)名称:高端制造装备用高品质稀土特殊钢关键技术研究及产业化。

摘　　要：分析了浸入式水口结瘤物、堵塞物的结构和大致化学成分,介绍了水口内壁结瘤和堵塞的多种原因,并从改善水口材质及结构、减少夹杂物或改性夹杂物、优化局部钢水流动状态和施加外场4个方面总结了抑制水口结瘤和堵塞的措施.The layer structure and main composition of the clogging and deposits of submerged entry nozzle(SEN)was analyzed,and the various reason for clogging and blockage was introduced,also the countermeasures of clogging and blockage of SEN were summarized from four aspects:selection in materials and geometry adjustment,reduction and modification of inclusions,optimization of flow of liquid steel and application of external field.

关 键 词：浸入式水口 结瘤物 堵塞物 夹杂物 水口材质 

分 类 号：TF341[冶金工程—冶金机械及自动化]