冷镦钢10B21水口结瘤原因及改进措施  

CAUSES AND IMPROVEMENT MEASURES OF NOZZLE CLOGGING OF COLD HEADING STEEL 10B21

作　　者：贾黎杰[1] 贺瑞飞[1] 刘广超 刘鹏[1] Jia Lijie;He Ruifei;Liu Guangchao(Anyang Iron and Steel Group Co.,Ltd.)

机构地区：[1]安阳钢铁集团有限责任公司,河南安阳455004

出　　处：《河南冶金》2023年第1期46-49,共4页Henan Metallurgy

摘　　要：分析了冷镦钢10B21浇注过程水口结瘤的原因,并提出了相应的改进措施。通过降低钢水初始氧含量、调整顶渣料与脱氧合金配比、优化钙处理工艺以及软吹工艺、连铸改善中间包和水口的烘烤效果、加强保护浇注防止钢水二次氧化,有效改善了钢水流动性和可浇性,解决了冷镦钢10B21浇注过程水口结瘤的问题。The reasons for nozzle clogging in the casting process of cold heading steel 10B21 is analyzed and corresponding improvement measures are putted forward.By reducing the initial oxygen content of molten steel,adjusting the ratio of top slag and deoxidizing alloy,optimizing the calcium treatment process and the soft blowing process,improving the preheating effect of continuous casting tundish and nozzle,strengthening the protective pouring to prevent the secondary oxidation of molten steel,the fluidity and pourability of molten steel is improved and the nozzle clogging in the casting process of cold heading steel 10B21 is solved.

关 键 词：冷镦钢 水口结瘤 钙处理 保护浇注 

分 类 号：TF777[冶金工程—钢铁冶金]