耐火与石灰 ›› 2023, Vol. 48 ›› Issue (3): 4-7.

• 综述 • 上一篇    下一篇

硅基添加物对铝镁浇注料的影响及应用

  

  1. (1. 河北国亮新材料股份有限公司,唐山 063000; 2. 华北理工大学 河北省无机非金属材料重点实验室,唐山 063009)
  • 出版日期:2023-06-10 发布日期:2023-06-08

Effect of silicon based additives on Al2O3-MgO castables and its application

  1. (1. Hebei Guoliang New Material Co.,Ltd.,Tangshan 063000,China; 2. North China University of Science and Technology,Hebei Inorganic Non-metallic Materials Main Lab.,Tangshan 063009,China)
  • Online:2023-06-10 Published:2023-06-08

摘要: 采用 A85 均化矾土、96 烧结镁砂、刚玉粉料、铝镁尖晶石粉、硅微粉、氧化铝微粉、炭素、硅基添加物作为原料, 通过实验研究了炭素材料及硅基添加物对浇注料性能指标的影响。硅基添加物起到增强及抑制炭素材料氧化的作用, 其引入量分别为 0、0.5%、1%、1.5%、2%。结果表明:随着硅基添加物的引入,气孔率先降后增,体积密度先增后降, 黑心面积逐渐增大,高温性能先好后差。综合分析,当硅基添加物引入量为 1% 时,浇注料的性能最优

关键词: 铝镁浇注料, 硅基添加物, 抗氧化性, 高温抗折强度

Abstract: Adopting A85 homogenized bauxite,96 sintered magnesia,corundum powder, alumina magnesium spinel powder,silicon powder,alumina powder,carbon and silicon-based additives as raw materials,the effects of carbon materials and silicon-based additives on the properties of castables were studied through experiments. The silicon-based additives can enhance and inhibit the oxidation of carbon materials,with the introduction amounts of 0,0.5%,1%,1.5% and 2% respectively. The results show that with the introduction of silicon-based additives,the porosity first decreases and then increases,the bulk density first increases and then decreases, the black core area gradually increases,and the high temperature performance first improves and then decreases. Comprehensive analysis shows that when the amount of silicon-based additives is 1%,the performance of castable is the best

Key words: Aluminum magnesium castable, Silicon-based additives, Oxidation resistance, HMOR

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