炼钢
• 炉外精炼 • 上一篇 下一篇
王建忠1,程礼梅2,任 英2,赵晓锋1,李慧峰1,王举金2
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摘要: 为了研究齿轮钢脱氧及夹杂物控制,结合工厂试验以及热力学计算,分析了在不同冶炼时刻,含硫齿轮钢的复合脱氧产物。研究结果表明,在冶炼过程中,随着脱氧反应的进行以及脱氧平衡的移动,钢中溶解氧含量不断降低,夹杂物组成由纯Al2O3夹杂转变为Al2O3-MgO-CaO-Ti2O3-CaS复合夹杂。纯铁液的脱氧热力学和实际钢液存在较大差距,不能采用纯铁液的脱氧热力学指导实际生产。
关键词: 含硫齿轮钢, 脱氧, 夹杂物, 热力学
Abstract: In order to study the deoxidation and inclusion control of gear steel, this paper combines the factory experiment and thermodynamic calculation to analyze the composite deoxidation products of sulfur-containing gear steel at different smelting moments. The results show that in the smelting process, with the deoxidation reaction and the movement of deoxygenation equilibrium, the dissolved oxygen content in the steel decreases continuously, and the inclusion composition is transformed from pure Al2O3 inclusions to Al2O3-MgO-CaO-Ti2O3-CaS composite inclusions. There is a big gap between the deoxidation thermodynamics of pure iron and the actual molten steel, and the actual production can not be guided by the deoxidation thermodynamics of pure molten iron.
Key words: sulfurcontaining gear steel, deoxidization, inclusions, thermodynamics
王建忠1,程礼梅2,任 英2,赵晓锋1,李慧峰1,王举金2. 含硫齿轮钢脱氧过程中非金属夹杂物生成热力学及工业实践 [J]. 炼钢.
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http://www.bwjournal.com/lg/CN/Y2020/V36/I1/8