Al2O3对CaO-Fe2O3熔体结晶矿物组成及显微结构的影响

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Al₂O₃对CaO-Fe₂O₃熔体结晶矿物组成及显微结构的影响

杨楠, 郭兴敏

文章导航 > 钢铁钒钛 > 2019 > 40(2): 132-136

薛月凯, 李晨晓, 王书桓, 赵定国, 陈建军. 转炉终渣气化脱磷优化试验研究[J]. 钢铁钒钛, 2018, 39(5): 93-97. doi: 10.7513/j.issn.1004-7638.2018.05.016

引用本文:

杨楠, 郭兴敏. Al₂O₃对CaO-Fe₂O₃熔体结晶矿物组成及显微结构的影响[J]. 钢铁钒钛, 2019, 40(2): 132-136. doi: 10.7513/j.issn.1004-7638.2019.02.023

Xue Yuekai, Li Chenxiao, Wang Shuhuan, Zhao Dingguo, Chen Jianjun. Optimization of Dephosphorization Rate of Converter Final Slag by Gasification Dephosphorization[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(5): 93-97. doi: 10.7513/j.issn.1004-7638.2018.05.016

Citation:

Yang Nan, Guo Xingmin. Effect of Al₂O₃ on the Composition and Microstructures of Crystal Products of CaO-Fe₂O₃ Melt[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(2): 132-136. doi: 10.7513/j.issn.1004-7638.2019.02.023

薛月凯, 李晨晓, 王书桓, 赵定国, 陈建军. 转炉终渣气化脱磷优化试验研究[J]. 钢铁钒钛, 2018, 39(5): 93-97. doi: 10.7513/j.issn.1004-7638.2018.05.016

引用本文:

杨楠, 郭兴敏. Al₂O₃对CaO-Fe₂O₃熔体结晶矿物组成及显微结构的影响[J]. 钢铁钒钛, 2019, 40(2): 132-136. doi: 10.7513/j.issn.1004-7638.2019.02.023

Xue Yuekai, Li Chenxiao, Wang Shuhuan, Zhao Dingguo, Chen Jianjun. Optimization of Dephosphorization Rate of Converter Final Slag by Gasification Dephosphorization[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(5): 93-97. doi: 10.7513/j.issn.1004-7638.2018.05.016

Citation:

Yang Nan, Guo Xingmin. Effect of Al₂O₃ on the Composition and Microstructures of Crystal Products of CaO-Fe₂O₃ Melt[J]. IRON STEEL VANADIUM TITANIUM, 2019, 40(2): 132-136. doi: 10.7513/j.issn.1004-7638.2019.02.023

Al₂O₃对CaO-Fe₂O₃熔体结晶矿物组成及显微结构的影响

doi: 10.7513/j.issn.1004-7638.2019.02.023

杨楠,
郭兴敏^,

北京科技大学冶金与生态工程学院, 北京 100083

基金项目:

国家自然科学基金（U1460201，51374017，51774029）。

作者简介:
杨楠(1988-),男,辽宁鞍山人,博士研究生,主要从事钢铁冶金相关研究工作。E-mail:ustb_yangnan@126.com。

通讯作者:
郭兴敏(1959-),男,辽宁盘山人,博士生导师,E-mail:guoxm@ustb.edu.cn。

中图分类号: TF046.4
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- 文章访问数: 64
- HTML全文浏览量: 25
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2019-01-14
- 网络出版日期: 2023-12-02

Effect of Al₂O₃ on the Composition and Microstructures of Crystal Products of CaO-Fe₂O₃ Melt

Yang Nan,
Guo Xingmin^,

School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要: 通过在CaO-Fe₂O₃熔体中添加Al₂O₃，研究了不同Al₂O₃含量对CaO-Fe₂O₃熔体结晶矿物组成及显微结构的影响。研究结果表明，随着Al₂O₃含量的增加，CaO-Fe₂O₃-Al₂O₃熔体结晶产物中铁酸一钙含量减少。当Al₂O₃含量达到3%时，铁酸二钙与富铁铁酸钙从熔体中结晶，二者含量随Al₂O₃含量的增加而增加。随着Al₂O₃含量的增加富铁铁酸钙的显微结构向细条状转变。同时，熔体黏度随着Al₂O₃含量增加而增加，当Al₂O₃含量超过5%时，熔体内铁酸钙结晶受到显著抑制。
- 烧结矿 /
- 铁酸钙结晶 /
- 矿物组成 /
- 显微结构
Abstract: As one of major burdens of blast furnace,the metallurgical performance of high basicity iron ore sinter is highly related to the ironmaking process in blast furnace..In this study,the effect of Al₂O₃ on the composition and microstructures of crystal products of CaO-Fe₂O₃ melt was investigated by changing the Al₂O₃content in CaO-Fe₂O₃ melt.It was found out that the CaFe₂O₄ decreased with increasing Al₂O₃ content.When Al₂O₃ content reached 3%,Ca₂Fe₂O₅ and Fe-rich calcium ferrite crystallized from melt and their content increased with increasing Al₂O₃ content.The microstructure of Fe-rich calcium ferrite became thinner with increasing Al₂O₃ content.The viscosity of CaO-Fe₂O₃ melt was also increased with increasing Al₂O₃content.When the Al₂O₃ content exceeded 5%,the crystallization of calcium ferrite was depressed significantly.
- iron ore sinter /
- calcium ferrite crystallization /
- mineral composition /
- microstructure

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文章访问数: 64
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