耐火材料 ›› 2021, Vol. 55 ›› Issue (2): 148-150.DOI: 10.3969/j.issn.1001-1935.2021.02.013

• 生产应用 • 上一篇    下一篇

高炉渣和脱硫渣对Al2O3-SiC-C质浇注料的侵蚀研究

温太阳(), 崔园园, 钟凯, 杨彬   

  1. 首钢集团有限公司技术研究院 北京100043
  • 收稿日期:2020-09-28 出版日期:2021-04-15 发布日期:2021-04-15
  • 作者简介:温太阳:男,1979年生,高级工程师。E-mail:wcoolsun@163.com

Effect of BF slag and desulfurized slag on corrosion resistance of Al2O3-SiC-C castables

Wen Taiyang(), Cui Yuanyan, Zhong Kai, Yang Bin   

  1. Research Institute of Technology of Shougang Group Co.,Ltd.,Beijing 100043,China
  • Received:2020-09-28 Online:2021-04-15 Published:2021-04-15

摘要:

采用静态坩埚法进行抗渣(高炉渣和脱硫渣)侵蚀试验,研究了高炉渣和脱硫渣对硅溶胶结合Al2O3-SiC-C质浇注料的侵蚀,并借助SEM、EDS、XRD等方法对静态坩埚抗渣试样进行了显微结构、元素分布和物相组成分析。结果表明,CaO、SiO2和FeO含量相对较高的脱硫渣对静态坩埚抗渣试样的侵蚀能力较强。这是因为CaO、SiO2和FeO与试样中基质部分的Al2O3发生反应,生成低熔点的化合物,加剧了Al2O3-SiC-C质浇注料的侵蚀。

关键词: 浇注料, 脱硫渣, Al2O3-SiC-C, 抗渣性

Abstract:

Effect of blast furnace slag and desulfurized slag on the corrosion of silica sol bonded Al2O3-SiC-C castables was studied by means of static crucible slag corrosion method.Tthe microstructure,the element distribution and the mineral phase of crucible samples after slag corrosion experiment were analyzed by means of SEM,EDS and XRD.The results show that the desulfurized slag with relatively high contents of CaO,SiO2 and FeO has stronger corrosion to the sample.The reason is that CaO,SiO2 and FeO react with Al2O3 in the matrix of the sample forming low melting point compounds,which aggravate the corrosion of Al2O3-SiC-C castables.

Key words: castable, desulfurized slag, alumina-silicon carbide-carbon, slag resistance

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