| 复吹转炉冶炼低氮钢控制技术 |
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| 引用本文： | 李利刚.复吹转炉冶炼低氮钢控制技术[J].四川冶金,2010,32(5):7-10. |
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| 作者姓名： | 李利刚 |
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| 作者单位： | 昆明理工大学冶金与能源工程学院,四川攀枝花617000 |
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| 摘 要： | 对复吹转炉冶炼过程增氮原因进行了分析,提出了供氮强度小于0.025 m3/（min.t）供气模式,供氮与吹氧时间比小于70%,减少点吹次数,减少高氮含量材料的使用量,出钢合金化前期造钢包渣,RH进行V、Ti、Nb元素合金化等措施。采取措施后,脱氧合金化后钢水氮含量控制在25×10-6以下。
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| 关 键 词： | 复吹转炉 合金化 RH |
CONTROL TECHNOLOGY OF LOW NITROGEN STEEL TO THE COMBINED-BLOWING BOF STEELMAKING |
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| Li Ligang.CONTROL TECHNOLOGY OF LOW NITROGEN STEEL TO THE COMBINED-BLOWING BOF STEELMAKING[J].Sichuan Metallurgy,2010,32(5):7-10. |
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| Authors: | Li Ligang |
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| Affiliation: | Li Ligang(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Panzhihua,Sichuan 617000,China) |
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| Abstract: | Reasons for nitrogen enhancement in the combined-blowing BOF steelmaking process are analyzed.This paper proposed measures for blowing model of nitrogen offerings intensity less than 0.025 m3/（min·t）,nitrogen supplying time and blowing oxygen ratio less than 70%,reducing times of points blowing,diminishing quantity of high-nitrogen materials,slag ladle of alloying treatment of steel tapping in previous stage,RH for alloying of elements such as V,Ti,Nb.Nitrogen content is controlled less than 25×10-6 after deoxidization alloying. |
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| Keywords: | the combined-blowing converter alloying RH |
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