超低硫钢冶炼工艺优化与实践  

Optimization and Practice of Smelting Process for Ultra Low Sulfur Steel

作　　者：姜静宇 骈建峰 Jiang Jingyu;Pian Jianfeng(HBIS Group Wusteel Company)

机构地区：[1]河钢集团舞钢公司

出　　处：《宽厚板》2019年第3期11-13,共3页Wide and Heavy Plate

摘　　要：分析了LF及VD精炼过程的脱硫影响因素,并以Q345R(HIC)为例介绍了在无铁水预处理脱硫条件下冶炼超低硫钢的工艺优化与实践。通过优化精炼炉炉渣渣系、控制氩气搅拌时间等影响因素,完成了[S]≤15×10^-6的超低硫钢冶炼,将探伤合格率由94.5%提高到99.5%。The paper analyses the influencing factors of desulfurization in LF and VD refining,describes the process optimization and practice of ultra low sulfur steel melting without hot metal pre-desulfurization taking Q345R(HIC)steel as an example.By optimizing refining slag system and controlling argon stirring time and other factors,ultra low sulfur steel with[S]≤15×10^-6 is produced and qualification rate of flaw detection is increased from 94.5%to 99.5%.

关 键 词：超低硫钢 精炼渣系 探伤合格率 

分 类 号：TF76[冶金工程—钢铁冶金] TF703