| CaO-SiO2-V2O3三元系活度模型及其应用 |
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| 引用本文： | 周勇,李正邦,郭培民. CaO-SiO2-V2O3三元系活度模型及其应用[J]. 钢铁研究学报, 2007, 19(6): 30-0 |
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| 作者姓名： | 周勇 李正邦 郭培民 |
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| 作者单位： | 钢铁研究总院冶金工艺研究所,北京,100081;钢铁研究总院冶金工艺研究所,北京,100081;钢铁研究总院冶金工艺研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金 , 国家高技术研究发展计划(863计划) |
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| 摘 要： | 根据熔渣结构的分子离子共存理论建立了CaO SiO2 V2O3三元系活度模型，应用该模型对用钒氧化物矿代替钒铁直接合金化冶炼高速钢的工艺过程进行了热力学计算和分析。 结果表明：在高温下，SiC比Si、C的还原性能强。SiC和Si与V2O3反应时渣钢间V的分配比随碱度的提高而下降，而C与V2O3反应时渣钢间V的分配比随碱度变化不大。Si和C与V2O3反应时渣钢间V的分配比随Si、C含量的提高而下降。
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| 关 键 词： | 活度模型 直接合金化 热力学 |
| 文章编号： | 1001-0963（2007）06-0030-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2007-02-06 |
Activity Model and Its Application in CaO-SiO2-V2O3 Ternary System |
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| ZHOU Yong,LI Zheng-bang,GUO Pei-min. Activity Model and Its Application in CaO-SiO2-V2O3 Ternary System[J]. Journal of Iron and Steel Research, 2007, 19(6): 30-0 |
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| Authors: | ZHOU Yong LI Zheng-bang GUO Pei-min |
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| Affiliation: | Institute of Metallurgical Technology, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | The activity model of CaO-SiO2-V2O3 ternary system was built according to the coexistence theory of slag structure, and the thermodynamics of the process of high speed steel produced by direct alloying of vanadium oxidized ore was analyzed by this model. The results show that the reducing capability of SiC is the strongest among SiC, C and Si. The distribution ratio of V between slag and metal decreases with the increase of basicity when SiC and Si react with V2O3, while the distribution ratio of V varies lightly with the increase of basicity when C reacts with V2O3. The distribution ratio of V between slag and metal decreases with the increase of Si and C content when Si and C react with V2O3. |
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| Keywords: | activity model direct alloying thermodynamics |
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