首页> 中文期刊>材料与冶金学报 >外加电场对Al2O3-C耐火材料抗渣侵蚀性能的影响

外加电场对Al2O3-C耐火材料抗渣侵蚀性能的影响

     

摘要

By using different particle size of fused white corundum (<74 μm, 74~147 μm, >147 μm), flake graphite, solid resin, commercial alcohol, zirconia (calcium oxide as stabilizer) as the raw materials, Al2O3-C samples with the length of 850 mm, inner (alumina-graphite) diameter of 50 mm and outer (zirconium) diameter of 85 mm were prepared by cold isostatic compaction pressed at 160 MPa after prilling in granulator. An electric field was applied to Al2O3-C refractory and the effect of current intensity (0.5 A, 1 A and 5 A) on slag erosion resistance was investigated in this paper. The results show that with the increasing of current intensity, the thickness of build-up in cathode increases significantly. CaO·6Al2O3, a high melting point compound generated on the surface of slag line, decreases the slag erosion rate of Al2O3-C refractory dramatically.

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