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宝钢滚筒渣安定性的试验研究石磊1,陈荣欢1,王如意1(1.上海市宝山钢铁股份有限公司技术中心)摘 要:介绍了宝钢滚筒渣的基本性质和粒度分布,构建了一套安定性测定装置,考察了渣样粒度,浸泡时间,水浴温度,荷载板重等因素对渣安定性的影响,并探讨了水浸时渣内f-CaO含量的变化趋势以及f-CaO含量和体积膨胀率之间的关系,为滚筒渣的工程应用提供初步依据关键词:滚筒渣; 安定性; 游离氧化钙; 体积膨胀率......
Effects of Fe2O3 on the properties of ceramics from steel slagYu Li1,Li-hua Zhao1,2,Ya-kun Wang1,Da-qiang Cang11. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing2. China Electronics Standardization Institute摘 要:Ferric oxide is one of the key factors affecting both the microstructure and the properties of CaO......
of density for selected CaO-MgO-Al2O3-SiO2 slag with low silica [J]. J Iron Steel Res Int, 2012, 19(7): 26-32. [10] YANG Li-li, WANG Hong-ming, ZHU Xiang, LI Gui-rong. Effect of boron mud and CaF2 on surface tension and density of CaO-SiO2-B2O3 ternary slag systems [J]. J Iron Steel Res Int, 2014, 21(8): 745-748. [11] MAO Yu-wen. Metallurgical melt [M]. Beijing: Metallurgical Industry Press, 1994......
Behavior of phosphorus enrichment in dephosphorization slag at low temperature and low basicityGe-fan Ye,Jian Yang,Run-hao Zhang,Wen-kui Yang,Han SunState Key Laboratory of Advanced Special Steel... distribution ratio(LP) between slag and molten steel in the double slag and remaining slag process were studied with a 180 t basic oxygen furnace industrial experiment.The dephosphorization slags......
. Xingtai Iron and Steel Co. Ltd.摘 要:To use the potential heat of molten blast furnace slag completely,a CaO-Al2O3-SiO2system glass(MSG)was prepared from the molten industrial slag.The corresponding method proposed in this study utilized both slag and its potential heat,improving the production rate and avoiding the environmental pollution.Using appropriate......
降低Q235板坯夹杂物实践何生平1,2,张国兴2(1.川威集团钒钛冶金科技公司,四川内江 6424692.重庆大学 材料科学与工程学院,重庆 400044)摘 要:采用氮氧分析,大样电解和能谱分析等方法,对川威现有工艺下Q235铸坯的洁净度进行调查,分析钢水洁净度较低的原因,并优化Q235的冶炼工艺.结果表明,采用转炉渣洗操作,控制软吹时间和强度,减少大包下渣量,钢中大型夹杂和T[O]大幅度下降,钢水和铸坯洁净度明显提高.关键词:钢水; 洁净度; Q235板坯; 渣洗; 夹杂物......
用渣钢铁生产大断面铸钢锭的钢水净化周康1,2,张希俊1(1.云南省昆明市昆明理工大学机电工程学院2.四川省攀枝花市攀枝花钢城集团瑞钢工业有限公司)摘 要:用渣钢铁冶炼生产合格铸钢锭可以充分合理应用金属资源,其关键问题是降低钢水中的非金属夹杂物数量.在用EBT+LF+模铸工艺的生产条件下,对精炼渣成分,预脱氧和吹氩精炼制度进行了试验和分析.结果表明:应用合适碱度和渣量的CaO-SiO2-Al2O3-MgO渣系造渣,然后在每吨钢中加入1.2 kg硅铝钙钡进行预脱氧,并在精炼的不同阶段配合不同流量和时间的吹氩处理后,......
精炼渣碱度对304不锈钢夹杂物的影响李双江1,姜周华1,黄宗泽2,李阳1,李明2(1.辽宁省沈阳市东北大学材料与冶金学院2.宝钢股份有限公司 研究院,上海 201900)摘 要:结合生产实际,采用定量金相和SEM+EDS统计分析方法,研究了硅脱氧条件下,精炼渣碱度对304奥氏体不锈钢在LF精炼,连铸过程夹杂物变化规律的影响.结果表明:钢水中主要形成球状CaO-Al2O3-SiO2类复合夹杂,适当高的精炼渣碱度有利于钢中细小夹杂物的形成.随精炼渣碱度的提高,复合夹杂物中CaO含量增加,SiO2含量减小,Al2O3......
Preparation, characterization and photocatalytic activity of sulfuric acid-modified titanium-bearing blast furnace slag LEI Xue-fei(雷雪飞)1, XUE Xiang-xin(薛向欣)2 1. Department of Materials Science...; accepted 14 March 2010 Abstract: The feasibility of reducing Cr(VI) from the aqueous solution by sulfuric acid-modified titanium-bearing blast furnace slag (SATBBFS) as a photocatalyst......