| This paper select Barun and Mongolia Iron ore as research object, the physical chemical properties and Sintering Basic Characteristics were studied systematically.Firstly, the chemical composition, size distribution, the largest molecule of water, the maximum capillary water, made into balls of Barun Iron powder and Mongolia Iron ore were studied by chemical analysis, laser particle size analyzer, the maximum molecular water measuring device and the maximum capillary water measuring device. The results show that Barun iron ore was magnetite ,low silica ore, <74μm and < 48μm proportion of grain size were 86% and 62% respectively; Barun index was made into a ball weakly into a ball of 0.33.Monglia Iron powder was magnetite ,low silica ore, <74μm and < 48μm proportion of grain size were 50% and 43% respectively,Mongolia Iron powder index was made into a ball weakly into a ball of 0.20. Mongolia raw Iron powder was magnetite ,high silica ore, <74μm and < 48μm proportion of grain size were 42% and 29% respectively; Mongolia raw Iron ore index was made into a ball moderate of 0.45.Secondly, Assimilation,liquid phase fluidity,self-intensity of bonding phase and crystal-intensity of Baron iron powder and Mongolia iron ore were investigated by a mini-sintering test device, It was found that assimilation temperature of Baron iron ore was1345℃, Mongolia Iron powder was 1311℃,Mongolia raw ore was 1252℃,assimilation was faintness; With the increasing of SiO2 liquid phase fluidity index increased. when the content of SiO2 was certain, With the increasing of temperature liquid phase fluidity index increased. The Basicity from 1.6 to 2.4 of self-intensity of bonding strength increased. With the increasing of temperature crystal-intensity strength increased. Meanwhile calcium ferrite formation characteristic of barun and Mongolia was investigated. It found that the content of calcium ferrite formation is 3%;When the temperature is 1280℃,when the basicity of 1.6,2.0 formation of calcium ferrite were 3%, 5%; by the mineralogical analysis shows microstructure of Barun iron ore was similar pellets; the content of calcium ferrite formation of Mongolia iron powder very small, microstructure of Mongolia iron powder was mainly grain-based on isolated Hematite.In the end, Mongolia raw ore's liquid phase fluidity index,self-intensity of bonding strength,calcium ferrite formation characteristic and crystal-intensity were studied, With the increasing of basicity liquid phase fluidity index increased. Basicity from 1.6 to 2.4 of self-intensity of bonding strength increase. calcium ferrite formation characteristic of Mongolia raw ore was investigated. It found that When the temperature is 1240℃, when the basicity of 1.6,2.0 formation of calcium ferrite the content of calcium ferrite formation is 15%,18%;When the temperature is 1280℃, when the basicity of 1.6,2.0 formation of calcium ferrite were 16%, 50%; With the adding of temperature crystal-intensity strength increased.
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