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

作　　者：李飞 周辉[2] 杨枝超 唐中队 王正芳 刘威 Li Fei;Zhou Hui;Yang Zhichao;Tang Zhongdui;Wang Zhengfang;Liu Wei(Baoshan-Wuhan United Steelworks Co.,Ltd.,Wuhan 430081,Hubei,China;不详)

机构地区：[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

出　　处：《耐火材料》2024年第4期344-348,共5页Refractories

基　　金：中国博士后科学基金项目(2023M740971)。

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。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.

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 

分 类 号：TQ175[化学工程—硅酸盐工业]