摘要
研究了石英 -刚玉质、刚玉质和镁质耐火材料对所处理的IF钢总氧含量和夹杂的影响 ,用氧测定仪对钢中的总氧含量进行了测定 ,并对钢中的夹杂进行了SEM和EDS分析。结果表明 :耐火材料对钢的增氧量的大小与所用耐火材料的氧潜能指数 (IOP)有关 ,IOP越大 ,增氧量越大 ;镁质耐火材料由于有较低的IOP 。
The Hubei Province Key Lab of Ceramics and Refractories,Wuhan University of Science and Technology,Wuhan 430081,ChinaThe effects of refractories of quartz-corundum consisting of 45 mass% quartz and 55 mass% corundum,fused corundum and fused magnesia on the total oxygen content (TOC) and the composition of inclusions in interstitial free (IF) steel were studied.3 mass% microsilica was added into the three refractories as binder.The refractories were shaped as lining of the graphite crucible by castable method.IF steel was placed in the crucibles,then the crucibles were put into big saggars and covered with coke powder.Finally, they were heated at 1600 ℃ for 90 min and 45 min respectively.Oxygen contents of the steel samples were obtained by oxygen determinator;Inclusions were analyzed by SEM and EDS.The results show that the TOC of steel increased with increase of Index of Oxygen Potential (IOP) of the refractories.The steel sample coped with MgO refractories having the lowest IOP has the lowest TOC.
出处
《耐火材料》
CAS
北大核心
2003年第1期22-24,共3页
Refractories
基金
国家自然科学基金与上海宝钢集团联合资助项目( 5 0 1740 41)
关键词
耐火材料
IF钢
总氧含量
夹杂
影响
Refractories,Interstitial free steel,Total oxygen content,Inclusion
