CAJ | 학술논문

对Fe2 O3-SiO2-CaO-Al2 O3-MgO五元体系在准化学平衡条件的液相生成过程进行了研究。采用光学显微镜、X-Ray和SEM，对不同温度下体系液相生成量及成分进行了分析。结果表明：温度越高液相生成量越多，液相成分随温度的增加发生改变，温度对镁元素的微观分布影响较小，MgO在赤铁矿为主要原料的烧结体系中会与Fe2 O3结合生成MgO· Fe2 O3矿物；随着温度的升高SFCA中的Fe2 O3含量升高，液相量增加；Al2 O3含量升高，利于交织结构的铁酸钙（ FC）的形成，可提高烧结矿强度。
대Fe2 O3-SiO2-CaO-Al2 O3-MgO오원체계재준화학평형조건적액상생성과정진행료연구。채용광학현미경、X-Ray화SEM，대불동온도하체계액상생성량급성분진행료분석。결과표명：온도월고액상생성량월다，액상성분수온도적증가발생개변，온도대미원소적미관분포영향교소，MgO재적철광위주요원료적소결체계중회여Fe2 O3결합생성MgO· Fe2 O3광물；수착온도적승고SFCA중적Fe2 O3함량승고，액상량증가；Al2 O3함량승고，리우교직결구적철산개（ FC）적형성，가제고소결광강도。
The liquid phase formation process of Fe 2 O3 -SiO2 -CaO-Al2 O3 -MgO five systems in the quasi chem-ical equilibrium condition of was studied .The amounts and compositions of liquid phase at different temperature were analyzed by means of optical microscope ,X-Ray and SEM.The result is the amount of liquid phase increase when the temperature is higher ,and the compositions also increase .The effect of temperature on magnesium distrib-uting relationship is little .MgO is combined with Fe 2 O3 and transform into MgO · Fe2 O3 in hematite sintering sys-tem.The content of Fe2O3 in the SFCA and the amount of liquid phase increase with the temperature increasing .it is favor to promoting the formation of interleaving structure FC , and improving the sinter ’ s strength with the Al 2 O3 content ’ s increasing .