| B2O3作助熔剂对CaO基精炼渣系熔化温度的影响 |
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| 引用本文： | 王宏明,倪冬生,赵湖,李桂荣,李波.B2O3作助熔剂对CaO基精炼渣系熔化温度的影响[J].特殊钢,2009,30(6):1-3. |
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| 作者姓名： | 王宏明 倪冬生 赵湖 李桂荣 李波 |
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| 作者单位： | 1江苏大学材料科学与工程学院，镇江212013；
2宝山钢铁股份有限公司不锈钢分公司，上海200431 |
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| 基金项目： | 宝钢集团不锈钢分公司的资助，江苏大学学生科研立项资助项目 |
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| 摘 要： | 研究了B2O3对低碱度(CaO)/(SiO2)=3～4]和高碱度(CaO)/(SiO2)=5～7.5]两个系列CaO基精炼渣熔化温度的影响。结果表明,用B2O3比用Al2O3和CaF2更有效降低CaO基精炼渣系的熔化温度,对低碱度渣系,B2O3替代渣中的部分CaF2、Al2O3以及SiO2,都能有效降低渣的熔化温度;对高碱度渣系,B2O3替代CaF2作助熔剂时,可实现在高(CaO)/(SiO2)和(CaO)/(Al2O3)下造具有超低熔化温度的CaO基精炼渣,既可提高造渣速度,又可提高渣的脱硫磷能力和吸收硅、铝脱氧产物的能力。
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| 关 键 词： | B2O3 CaO基精炼渣 熔化温度 无氟助熔剂 |
| 收稿时间： | 2009-05-20 |
Effect of Fluxing Agent B2O3 on Melting Temperature of CaO-Based Refining Slag |
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| Wang Hongming,Ni Dongsheng,Zhao Hu,Li Guirong,Li Bo.Effect of Fluxing Agent B2O3 on Melting Temperature of CaO-Based Refining Slag[J].Special Steel,2009,30(6):1-3. |
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| Authors: | Wang Hongming Ni Dongsheng Zhao Hu Li Guirong Li Bo |
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| Affiliation: | 1 School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013 ；
2 Stainless Steel Branch, Baoshan Iron & Steel Co Ltd, Shanghai 200431 |
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| Abstract: | Effects of B2O3 on melting temperature of two CaO-based refining slag series with low basicity ( CaO)/ (SiO2)=3 ~4] and high basicity (CaO)/(SiO2)= 5 ?7. 5 ] have been studied. Results indicate that B2O3 is more available than Al2O3 and CaF2 to decrease the melting temperature of CaO-based refining slag, for low basicity slag, it is effective to decrease melting temperature of slag with replacing CaF2, Al2O3 or SiO2 partly by B2O3 ； for high basicity slag, with replacing CaF2 by B2O3, the extra-low melting temperature CaO-based refining slag with high ( CaO) /( SiO2) and high (CaO)/( Al2O3) could be got, it is available to increase the slag forming rate, the ability of slag for desulfurization and dephosphorization, and the ability of slag to absorb deoxidation products by silicon and aluminium. |
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| Keywords: | B2O3 |
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