异型坯包晶合金钢质量控制的研究与应用

Study and Application about Quality Control of Profiled Blank of Peritectic Alloy Steel

针对莱钢银山型钢炼钢厂异型坯连铸机生产包晶合金钢过程中出现的质量缺陷,分析该质量缺陷产生的主要原因,通过优化钢水生产工艺及成分控制、采用全保护浇注、研发异型坯包晶钢专用保护渣等措施,消除了裂纹质量问题,使异型坯包晶合金钢合格率提高到99.95%以上。

Aimed at the quality defects occurred during profiled blank continuous caster produced peritectic alloy steel in Yinshan Section Steel Steel-Making Mill of Lai Steel,the main reasons of this quality defcts were analyzed.By optimizing the molten steel production process and composition control,with full protection casting,researching and developing special protection powder of profiled blank peritectic alloy steel and other measures,the cs were removed,the percent of pass of the profiled blank raises above 99.95%.