A36和45A鋼LF精煉過程效果分析

Effect analysis of the LF refining process for A36 and 45A

摘要: 通過LF精煉生產A36和45A鋼,分析了精煉堿度(R)和(FeO+MnO)含量對脫氧的影響,以及精煉堿度(R)和(FeO)含量對脫硫的影響,研究得到脫硫率分別為61.3%和64.3%.同時,對精煉過程中P、H、N含量的變化規律進行了分析,結果表明金相夾雜物去除率平均值為70.27%,最高值為85.62%.

Abstract: The effects of basicity (R) and the (FeO+MnO) content of the refining slag on the deoxidation of A36 and 45A steels were investigated during the refining process, and the influences of basicity (R) and the (FeO) content of the slag on desulfurization were also analyzed. The results show that the desulfurization efficiencies are increased to 61.3% and 64.3%, respectively. In addition, the changes ofP,H, andN contents were studied. And the results show that the average removal rate of inclusions is 70.27%, and the maximum is 85.62%.