摘要
用热力学计算及动力学变化机制分析的方法,对氧化钛在钢液中的还原行为进行了研究。在炼钢条件下,铝完全可以还原钛矿中的TiO2,粒径为10μm的TiO2颗粒全部转变成Al2O3的时间小于1.27s,铝粉和氧化钛粉混合物加入钢液,瞬间钛就会被铝还原,被还原出的金属钛可对钢液进行合金化,而且对整个冶炼体系不会造成不良后果。
The reduction behavior of titanium oxide in molten steel was studied by thermodynamic calculation method and analysis method based on dynamics variation mechanism.During steelmaking TiO2 in titanium mineral could be completely reduced by aluminium and TiO2 particles in size of 10 μm would completely transform into Al2O3 within 1.27 seconds.Titanium would be immediately reduced by aluminium as soon as the mixture composed of aluminium powder and titanium oxide powder was added into molten steel.Then the molten steel would be alloyed by the reduced metal titanium and there were not any negative effects on the whole smelting system.
作者
尚德礼
Shang Deli(State Key Laboratory of Metal Materials for Marine Equipment and Application ofIron & Steel Research Institutes of Ansteel Group Cor.,Anshan 114009,Liaoning,China)
出处
《鞍钢技术》
CAS
2019年第4期20-23,共4页
Angang Technology
关键词
炼钢
氧化钛
铝
直接合金化
steelmaking
titanium oxide
aluminium
direct alloying
