摘要
鄂钢炼钢厂在实施低成本制造技术过程中,对Q235连铸板坯的生产工艺流程及钢种成分进行优化,生产300mm×2 000mm、300mm×2 200mm断面的板坯时,出现较多的表面纵裂,纵裂发生率一度达到15%以上。通过控制钢水w(Mn)/w(s)、钢水w(O),根据钢水成分调整保护渣性能等措施,在新工艺条件下,纵裂发生率有效控制在1.0%以下。
In the process of low cost manufacturing technology on steelmaking plant of Ecsteel,the production technological process and elements of Q235 steel slabs was optimized,when the slabs of300mm×2 000 mm or 300mm×2 200 mm section were produced,more surface longitudinal cracks were occurred,the incidence rate of surface longitudinal cracks was as high as 15%.By controlling on the w（Mn）/w（S）and w（O）of liquid steel,adjusting the function of mould powder according to steel elements,incidence rate of surface longitudinal cracks was reduced to below 1.0% on the new process.
出处
《武钢技术》
CAS
2016年第1期11-14,共4页
Wisco Technology
