| 真空-还原精炼法制备低氧高钛铁合金 |
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| 引用本文： | 豆志河,张延安,张含博,张志琦,牛丽萍,姚建明,赫冀成.真空-还原精炼法制备低氧高钛铁合金[J].特种铸造及有色合金,2011,31(5):400-403,385,386. |
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| 作者姓名： | 豆志河 张延安 张含博 张志琦 牛丽萍 姚建明 赫冀成 |
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| 作者单位： | 东北大学多金属共生矿生态化利用教育部重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目，国家重点基础研究发展计划(973计划)资助项目，中央高校基本科研业务费资助项目 |
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| 摘 要： | 针对铝热还原法制备的高钛铁中O含量高、夹杂多等缺点,提出了以铝热法高钛铁为原料进行真空还原精炼制备低O高钛铁的新思路。研究了精炼温度、精炼渣等因素对精炼效果的影响,采用XRD、SEM及化学元素分析等手段对高钛铁合金进行了研究。结果表明,合适的精炼渣和较高的精炼温度对保证精炼效果十分重要;还原精炼后合金的微观结构均匀致密,夹杂物得到有效去除,O含量显著降低;2000℃时以CaO-Al2O3为精炼渣制备的高钛铁合金中钛含量为69.80%,铁含量为22.55%,铝含量为2.58%,硅含量为2.02%,O含量为2.60%,符合优质高钛铁合金的技术要求。
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| 关 键 词： | 低O高钛铁 真空还原精炼 扫描电镜 精炼渣 |
Preparation of High Ti Ferroalloy with Low Oxygen through Vacuum Reduction Refining |
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| Dou Zhihe,Zhang Ting'an,Zhang Hanbo,Zhang Zhiqi,Niu Liping,Yao Jianming,He Jicheng.Preparation of High Ti Ferroalloy with Low Oxygen through Vacuum Reduction Refining[J].Special Casting & Nonferrous Alloys,2011,31(5):400-403,385,386. |
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| Authors: | Dou Zhihe Zhang Ting'an Zhang Hanbo Zhang Zhiqi Niu Liping Yao Jianming He Jicheng |
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| Affiliation: | Dou Zhihe,Zhang Ting'an,Zhang Hanbo,Zhang Zhiqi,Niu Liping,Yao Jianming,He Jicheng(Key Laboratory for Ecological Utilization of Multi-metallic Mineral,Ministry of Education,Northeastern University,Shenyang,China) |
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| Abstract: | Due to the defects such as high oxygen content and more inclusions in the high Ti ferroalloy prepared by the aluminum thermal reduction,the vacuum reduction refining was used to prepare the high Ti ferroalloy with low oxygen based on the high Ti ferroalloy prepared by aluminum thermal method as raw materials.Effects of the refining temperature and refining slag on refining efficiency were investigated,and the high Ti ferroalloy with low oxygen content was characterized by XRD(X-ray diffraction),SEM(scanning... |
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| Keywords: | High Ti Ferroalloy with Low Oxygen Vacuum Reduction Refining SEM(Scanning Electron Microscope) Refining Slag |
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