摘要
分析了鞍钢股份有限公司炼钢总厂三分厂低合金钢生产过程中各工序钢水氮含量的变化情况,分析认为转炉工序和LF炉精炼工序对钢水增氮影响较大。通过采取控制转炉点吹时间在40 s以内、出钢过程采用弱脱氧制度以及LF炉造渣工艺前置等措施后,低合金钢成品氮含量由0.004 01%降至0.003 29%。
The changes of the content of nitrogen in molten steel in every process dur ing smelting the low alloy steel in No.3 Subsidiary Plant of General Steelmaking Plant of Angang Steel Co., Ltd. are analyzed. According to the analysis these two procedures of both converter steelmaking and refining by LF have great influence on the increasement of the content of nitrogen. After taking such measures as controlling the spot blowing time of converter within 40 s, carrying out the weak deoxidizing schedule during tapping and making the slagging process by LF in advance, the content of nitrogen in low alloy molten steel is reduced to 0.003 29% from 0.004 01%.
出处
《鞍钢技术》
CAS
2015年第5期46-50,共5页
Angang Technology
关键词
低合金钢
氮含量
转炉
精炼
low alloy steel
content of nitrogen
converter
refining
