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介绍了伊朗Mobarakeh钢厂中间包清除渣壳问题的研究情况。中间包渣壳清除不好则会使连铸出现问题、耐火炉衬之间发生化学反应,渣从钢包进入中间包。渣/工业镁橄榄石混合物耐火材料界面,通过采用XRF、XRD、OM、TEM、SEM和EDS技术分析显示从钢包进入中间包内的渣的体积在中间包中对耐火材料损毁有直接影响。中间包里渣壳被固定进安全衬内的百分比由炉渣碱度和中间包里的渣中的Al2O3的量决定。这显示出一个直接的侵蚀机理,即发生在碱性渣和低铝含量的酸性渣里,而间接侵蚀机理发生在高铝含量的酸性渣里。
The research on removing slag case from Mobarakeh steel tundish in Iran is introduced. Poor tundish removal of the tundish will cause problems in the continuous casting. Chemical reaction occurs between the refractory linings, and the slag enters the tundish from the ladle. The slag / industrial forsterite refractory interface, analyzed by XRF, XRD, OM, TEM, SEM and EDS techniques, showed that the volume of slag entering the tundish from the ladle directly affected the failure of the refractory in the tundish. The percentage of dross in the tundish that is fixed in the safety lining is determined by the basicity of the slag and the amount of Al2O3 in the slag in the tundish. This shows a direct erosion mechanism, which occurs in the alkaline slag and the low-acid content of the acidic slag, and indirect erosion mechanism occurs in the high-alumina content of the acid residue.