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The miniature sintering , Shuicheng Iron and Steel (Group) Co. , Ltd. the existing three different types of iron ore as raw materials , optical microscope observation of the microstructure and electronic tensile testing machine Determination of sintered samples compressive strength of brown iron ore , hematite and magnetite single and two two - hybrid ( ratio of 1:1 ) in the type of alkalinity and temperature conditions under sintering rate of weight loss , shrinkage, softening temperature , microstructure and compressive strength between the relevant law . The results show that : the single limonite, hematite and magnetite sintered at different alkalinity , low shrinkage, less liquid generated gap , low compressive strength , sintering poor performance indicators ; sintering technology comprehensive analysis, higher shrinkage and weight loss rate and the low - softening - temperature and high-strength obviously exists between the proportional relationship , the mixed powder than a single iron ore having a better sinterability ; Brazil hematite is the sintered sample to obtain a high the guarantee of strength ; does not change the alkalinity , with addition of the concept of limonite will help to improve the the liquid generation capacity and reduce the softening temperature ; conditions of high alkalinity , with addition of spring magnetite is conducive to the composite calcium ferrite generated .
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