The analysis of nitrogen concentration changes in each section through LD-LF-VD-CC pipeline steelmaking process indicates that the most important process of nitrogen content controlling is the BOF tapping process and LF refining process.

• 针对鞍钢-炼钢LD-LF-VD-CC的管线钢冶炼工艺,对炼钢各工序氮含量变化进行取样分析。