论文部分内容阅读
根据相关热力学数据,并结合炉渣结构的共存理论,通过GCr15轴承钢的化学成分,计算出渣钢反应达到平衡时的炉渣成分。计算结果与实际生产数据基本一致,根据本模型计算结果,实际生产当中,控制钢液中的w[Al]s=0.01%~0.03%,溶解w[Ca]=0.000 03%~0.000 05%,溶解w[Mg]=0.000 02%~0.000 04%时,溶解氧质量分数在0.000 5%以下。精炼渣成分大致为w(CaO)=50%~60%,w(MgO)=2%~4%,w(SiO2)=10%~25%,w(Al2O3)=10%~35%,FeO和MnO质量分数接近于0。
Based on the relevant thermodynamic data and the coexistence theory of slag structure, the composition of the slag at the time when slag steel reaction reaches the equilibrium is calculated by the chemical composition of GCr15 bearing steel. Calculated results are basically consistent with the actual production data. According to the calculation results of this model, w [Al] s = 0.01% ~ 0.03% and w [Ca] = 0.000 03% ~ 0.000 05% Dissolved w [Mg] = 0.000 02% to 0.000 04%, dissolved oxygen mass fraction of 0.0005% or less. The composition of the refining slag is approximately from 50% to 60% of wO 2, from 2% to 4% of wO 2, from 10% to 25% of w SiO 2, from 10% to 35% of wO 2, And MnO mass fraction is close to zero.