| H13钢中非金属夹杂物在LF-VD精炼过程的行为研究 |
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| 引用本文： | 王春琼,李长荣.H13钢中非金属夹杂物在LF-VD精炼过程的行为研究[J].模具工业,2011,37(6):63-67. |
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| 作者姓名： | 王春琼 李长荣 |
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| 作者单位： | 1. 贵州大学,材料与冶金学院,贵州贵阳550003
2. 贵州大学,材料与冶金学院,贵州贵阳550003;贵州省材料结构与强度重点实验室,贵州贵阳550003 |
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| 基金项目： | 贵阳市科技局工业攻关项目(2009-1059); 贵州大学研究生教育创新基金(校研理工2010003) |
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| 摘 要： | H13钢是热作模具钢中应用最广泛的钢种之一,夹杂物对其性能有严重危害。结合某钢厂生产实际情况,以现场取样为基础,用金相显微镜、扫描电镜系统地研究了LF-VD精炼过程中的夹杂物,计算和分析了H13钢冶炼过程中生成Al2O3、MgO.Al2O3类夹杂物的热力学条件。研究结果表明:钢液经LF精炼、VD处理后,钢中夹杂物的数量和面积明显减少,但随着炉渣中Al2O3活度的增大,炉渣吸附Al2O3类夹杂物的能力减弱,去除Al2O3夹杂物的速度减慢;夹杂物在LF精炼前主要以Al2O3、FeS、MgO.Al2O3类夹杂为主,LF精炼结束后为Al2O3、FeS、CaO.Al2O3类夹杂,VD处理后为Al2O3类夹杂。
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| 关 键 词： | 非金属夹杂物 模具钢 LF精炼 VD处理 |
Behavior of non-metallic inclusion of H13 steel in LF-VD refining process |
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| WANG Chun-qiong,LI Chang-rong.Behavior of non-metallic inclusion of H13 steel in LF-VD refining process[J].Die & Mould Industry,2011,37(6):63-67. |
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| Authors: | WANG Chun-qiong LI Chang-rong |
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| Affiliation: | WANG Chun-qiong1,LI Chang-rong1,2(1.College of Materials and Metallurgical,Guizhou University,Guiyang,Guizhou 550003,China,2.Guizhou Key Laboratory for Mechanical Behavior and Microstructure of Materials,China) |
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| Abstract: | H13 steel is one of the most widely used in hot work die steel.Inclusion has harmful effects on its properties.Based on the site sampling,inclusions in LF-VD refining processes were investigated by using metalloscope and scanning electron microscopy in combination with actual situation of production in one of steel factories.The research results show that: The number and area of inclusions are dropped significantly after LF refining and VD treatment.But the capacity of slag adsorption Al2O3 inclusions is we... |
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| Keywords: | non-metallic inclusions die steel LF refining VD treatment |
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