熔融还原型熔渣对Al_2O_3－C－ZrO_2系耐火材料的侵蚀

Corrosion of Alumina-Graphite-Zirconium Refractories by the Smelting Reduction Slag

在实验室内模拟熔融还原铁浴式熔渣，采用静态与旋转法研究了高铝质耐人材料及其配加石墨碳与ＺｒＯ＿２耐火材料的抗渣蚀能力变化，用ｘ射线衍射及波谱分析方法分析了侵蚀的特点，主要因素及其与耐火材料在侵蚀过程中微观结构变化的相互关系。结果表明，配加适量的石墨碳与ＺｒＯ＿２均可改善耐火材料的结构及抗渣蚀的能力，渣的氧化性是影响侵蚀速度的重要因素之一。

The imitation was done of slag composition of smelting reduction with iron bathin a laboratory。The anti-corrosion of high alumina,alumina-graphite,alumina-graphite-zironiumtefractories was studied by static immersion and rotary immersion tests. The corrosion behaviours,key factors and the relationships to the m icro-sturcture cha nges of the refractories in the procedurewere also investigated with x-ray diffraction,SEM and wave spectrum analysis.The results showedthat the proper addition of graphite and zirconium to the refractory could improve the structure andanti-corrosion of aluminous refractories,and oxidation of slag was one of the key factors for corro-sion.