不同成型方式精炼钢包包壁工作衬的蚀损机制研究

doi:10.3969/j.issn.1001-1935.2024.04.013

耐火材料 ›› 2024, Vol. 58 ›› Issue (4): 344-348.DOI: 10.3969/j.issn.1001-1935.2024.04.013

不同成型方式精炼钢包包壁工作衬的蚀损机制研究

李飞¹⁾, 周辉²⁾, 杨枝超¹⁾, 唐中队¹⁾, 王正芳¹⁾, 刘威³⁾

1)宝钢股份武钢有限炼钢厂湖北武汉 430081
2)武汉科技大学省部共建耐火材料国家重点实验室湖北武汉 430081
3)武汉尚圆融信新型材料有限公司湖北武汉 430080

收稿日期:2023-12-13 出版日期:2024-08-15 发布日期:2024-08-21
通讯作者: 周辉,男,1986年生,博士研究生。E-mail:278624985@qq.com
作者简介:李飞:男,1982年生,本科。E-mail:6540979@qq.com
基金资助:
中国博士后科学基金项目(2023M740971)。

Corrosion mechanism of working lining of refining ladle wall with different molding methods

Li Fei, Zhou Hui, Yang Zhichao, Tang Zhongdui, Wang Zhengfang, Liu Wei

First author's address: Baoshan-Wuhan United Steelworks Co.,Ltd.,Wuhan 430081,Hubei,China

Received:2023-12-13 Online:2024-08-15 Published:2024-08-21

摘要/Abstract

摘要： 为了探究浇注成型刚玉-尖晶石预制件与机压成型刚玉-尖晶石机压砖作为钢包包壁工作衬的服役情况及蚀损机制差异,研究了使用200炉次后的刚玉-尖晶石预制件以及机压砖的外观、化学成分、物相组成、物理性能以及显微结构。结果表明:刚玉-尖晶石预制件的蚀损速率略小于机压砖的,其侵蚀层厚度远小于机压砖的。免烧的机压砖本身颗粒之间的结合强度要远低于水泥结合预制件的,这导致机压砖内部颗粒之间的结合更容易被熔渣破坏,因此,预制件具有更优异的抵抗熔渣渗透的能力。

关键词: 钢包包壁工作衬, 刚玉-尖晶石预制件, 刚玉-尖晶石机压砖, 蚀损机制

Abstract: In order to explore the difference of the service condition and corrosion mechanism between corundum-spinel preforms and mechanically pressed corundum-spinel bricks as the working lining of the ladle wall,the appearance,chemical composition,phase composition,physical properties and microstructure of the corundum-spinel preforms and mechanically pressed bricks after 200 heats were studied.The results show that the corrosion rate of the corundum-spinel preforms is slightly lower than that of mechanically pressed bricks,and the thickness of the corrosion layer is much smaller than that of mechanically pressed bricks.Because the bonding strength between the particles of the unburned mechanically pressed bricks is much lower than that of the cement-bonded preforms,the bonding between the particles inside the machine-pressed bricks is more likely to be destroyed by the molten slag.Therefore,the preforms have better resistance to slag penetration.

Key words: ladle wall working lining, corundum-spinel preforms, mechanically pressed corundum-spinel brick, corrosion mechanism

中图分类号:

TQ175

李飞, 周辉, 杨枝超, 唐中队, 王正芳, 刘威. 不同成型方式精炼钢包包壁工作衬的蚀损机制研究[J]. 耐火材料, 2024, 58(4): 344-348.

Li Fei, Zhou Hui, Yang Zhichao, Tang Zhongdui, Wang Zhengfang, Liu Wei. Corrosion mechanism of working lining of refining ladle wall with different molding methods[J]. Refractories, 2024, 58(4): 344-348.

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不同成型方式精炼钢包包壁工作衬的蚀损机制研究

Corrosion mechanism of working lining of refining ladle wall with different molding methods

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