Wettability between molten slag and dolomitic refractory

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• 作者：Ping Shen^a ; Lifeng Zhang^a ; ^{zhanglifeng@ustb.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yi Wang^a ; Seetharaman Sridhar^b ; Qiangqiang Wang^a
• 关键词：Contact angle ; Wettability ; Slag ; Basicity ; Penetration
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：1 November 2016
• 年：2016
• 卷：42
• 期：14
• 页码：16040-16048
• 全文大小：4856 K

文摘

In the current study, the wettability between molten slag and dolomitic refractory materials used in the ladle during steel refining was investigated. The contact angle between molten slag and dolomitic substrate decreased with increasing temperature. The slag with lower basicity spread on the substrate more easily and penetrated deeper into the substrate. The penetration depth of slag into the refractory increased with the extension of holding time. The CaO in the refractory dissolved into slag which was then saturated with CaO. The reaction between slag and substrate resulted in the formation of solid Ca₃SiO₅, which slowed down the further penetration of slag into the refractory.