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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......
">To develop advanced high speed steel with high vanadium content,a kind of vanadium content 9% high speed steel in the form of circular ring was spray formed under certain thermal conditions.The carbides...Microstructure and Carbides Characteristics of Spray Formed 9V High Vanadium Steels徐轶1,GUO Biao2,GE Changchun1,31. School of Materials Science & Engineering,Southwest Jiaotong University2. School......
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......
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含钒微合金钢的析出行为研究方芳1,雍岐龙1,杨才福1,张永权1,苏航1(1.北京市钢铁研究总院结构材料研究所)摘 要:在Johnson-Mehl-Avrami动力学方程的基础上,建立Fe-C-V-N合金体系中V(C,N)的析出动力学方程,研究了4种氮含量的低碳钒微合金钢(Fe-C0.05-V0.08)中V(C,N)的形核机制及在奥氏体中的析出过程.结果表明:V(C,N)主要形核位置在位错线上,平衡析出的鼻点温度在820℃左右,析出开始时间随氮含量的增大而减小.利用Gleeble-1 500D热力模拟试验机进行了......
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,......
1.20%铝冷轧TRIP钢的合金设计,工艺和力学性能李忠义1,2,张建1,柳得橹1,娄艳芝2,刘学华0(1.安徽省马鞍山市马鞍山钢铁股份有限公司技术中心2.北京市北京科技大学材料科学与工程学院)摘 要:报道了含1.2%Al-0.1%C-Mn-Si冷轧TRIP600钢带的研究开发结果,通过合金设计,冶炼,热轧,冷轧和热处理在实验室成功地制备了TRIP600钢带,其屈服强度为390~420 MPa,抗拉强度650~700 MPa,伸长率30.5%~37.5%,强塑积21000~26000 MPa.%.作为热处理工艺......