菜钢大方坯合金钢连铸工艺优化  

PROCESS OPTIMIZATION OF BLOOM CONTINUOUS CASTING FOR ALLOY STEEL IN LAIWU STEEL

作　　者：刘金玲 

机构地区：[1]莱芜钢铁股份有限公司特钢事业部,莱芜271105

出　　处：《冶金信息导刊》2013年第3期33-36,共4页Metallurgical Information Review

摘　　要：莱钢260mm×300mm合金钢连铸机通过采用以下技术措施：全程保护浇注、中间包冶金、结晶器保护渣的优化、旋流浸入式水口的应用、二冷系统的改造等，使特殊钢铸坯质量得到全面控制和提高，钢水收得率达到98．5％以上，铸坯合格率稳定在99．97％以上。The quality of special steel blooms has gotten full control and improvement by adopting the following technical measures at 260 mm × 300 mm alloy steel continuous caster of Lai steel： protecting pouring in the whole process, tundish metallurgy, the optimization of mould protection slag, the application of vortex submerged nozzle, the transformation of the secondary cooling system, etc. The molten steel yield reaches above 98.5%, and the qualification rate of blooms is stable at more than 99.97%.

关 键 词：260mm×300mm连铸坯 质量控制 设计优化 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]