MnO对铝碳化硅碳砖侵蚀机理研究

耐火与石灰 ›› 2020, Vol. 45 ›› Issue (4): 19-21.

MnO对铝碳化硅碳砖侵蚀机理研究

王落霞1 方卓林2 方义能1 罗明1

1.浙江自立高温科技有限公司，上虞312300; 2.武汉钢铁有限公司制造管理部，武汉430083

出版日期:2020-08-10 发布日期:2020-08-24

Study on erosion mechanism of MnO on Al2O3-SiC-C brick

Wang Luoxia1 Fang Zhuolin2 Fang Yineng1 Luo Ming1

1.Zhejiang Zili High Temperature Technology Co.,Ltd., Shangyu 312300, China; 2.Wuhan Iron and Steel Company Limited, Wuhan 430083, China

Online:2020-08-10 Published:2020-08-24

摘要/Abstract

摘要： 对某钢厂侵蚀异常的铁水包用铝碳化硅碳砖进行了解析，并对侵蚀机理进行了研究，结果表明：侵蚀异常的原因主要是熔渣中MnO导致，高含量的MnO使得砖中硅酸锰等低熔相大量增加，在高温铁水的冲刷下产生熔蚀性熔损。

关键词: 铝碳化硅碳砖, MnO, 侵蚀机理, 低熔相

Abstract:

The Al2O3-SiC-C brick used in iron ladle of a steel mill was analyzed,and the erosion mechanism was studied as well. The results show that the abnormal erosion is mainly caused by MnO in the slag,and the high content of MnO makes the low-melting phase in the brick such as manganese silicate greatly increase and the molten damage generate under the scouring of high-temperature molten iron.

Key words: Al2O3-SiC-C brick, MnO, Erosion mechanism, Low-melting phase

中图分类号:

TQ175.66

王落霞方卓林方义能罗明. MnO对铝碳化硅碳砖侵蚀机理研究[J]. 耐火与石灰, 2020, 45(4): 19-21.

Wang Luoxia Fang Zhuolin Fang Yineng Luo Ming. Study on erosion mechanism of MnO on Al2O3-SiC-C brick[J]. REFRACTORIES & LIME, 2020, 45(4): 19-21.

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