Method for detecting high temperature performance of iron ore powder
A technology of high temperature performance and iron ore powder, applied in the field of testing the performance of sintered pellets, to achieve the effect of comprehensive performance and strong adaptability
Active Publication Date: 2015-03-25
武汉钢铁有限公司
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The invention relates to a method for detecting high temperature performance of iron ore powder. The method comprises the steps of drying the iron ore powder, grading the size of the iron ore powder into a grade more than 3mm, a grade in the range of 1 to 3mm and a grade of less than 1mm; adding pure calcium oxide or calcium hydroxide for regulating alkalinity to 0, 1.0, 2.0, 3.0 according to SiO2 amount in the iron ore powder; adding an organic adhesive and water, stirring the organic adhesive, water and the iron ore powder to obtain a mixture, and pressing the mixture into cakes; heating the cakes in different temperature sections, and judging the difficulty in generating a liquid phase; calculating a fluidity index of the liquid phase, and judging the high temperature performance. Since the high temperature performance of the iron ore powder is determined under the condition of original particles of iron ore, the detection data is instructive and high in applicability; moreover, since the data in a series of alkalinity range is detected, the reflected performance is more comprehensive.
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Property | Measurement | Unit |
Granularity | <= 1.0 | mm |
Bottom area | 3.228 | cm² |
Granularity | 1.0 ~ 3.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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