共搜索到1567条信息,每页显示10条信息,共157页。用时:0小时0分0秒171毫秒
Effects of Rare Earth Oxide on Viscosity of Mold Fluxes for Continuous Casting JIANG Maofa1,Shi Peiyang1,Yao Yongkuan1,Wang Deyong1,Wang Huihua2,LIU Chengjun1 (1.College of Materials and Metallurgy... (rare earth) oxide on viscosity of mold fluxes were investigated with a rotary viscometer. The results show that: (1) The viscosity of mold fluxes is remarkably increased by RE oxide addition, especially......
Microstructure of in situ Al3Ti/6351Al composites fabricated with electromagnetic stirring and fluxes LI Gui-rong(李桂荣), WANG Hong-ming(王宏明), ZHAO Yu-tao(赵玉涛), CHEN Deng-bin(陈登斌), CHEN Gang(陈 刚...). CaF2 and LiCl acted as fluxes to lower the reaction temperature of the system. It is shown that the electromagnetic stirring and fluxes accelerate the emulsion process of K2TiF6. Optical microscopy......
Effect of fluxes on structure and luminescence properties of Y3Al5O12:Ce3+ phosphors WANG Huanping1,DENG Degang1,JU Haidong1,ZHANG Ying1,XU Shiqing1,WANG Baoling1,SUN Liuzheng1,ZHAO Shilong1... H3BO3, LiF, NaF, KF and BaF2 were used as the fluxes. The effect of fluxes on optical properties of phosphors was studied in detail, especially the fluxes of alkali fluorides, which could enhance......
高铝钢非反应性连铸保护渣的研究王欢1,唐萍1,文光华1,于雄1(1.重庆市重庆大学材料科学与工程学院)摘 要:针对目前高铝钢用结晶器保护渣中SiO2易被钢液中的Al还原而导致连铸无法顺行的问题,设计了低SiO2试验渣系并进行粘-温曲线及熔点测试试验.结果表明:低SiO2渣系具有良好的基本理化性质,具有工业应用的潜能;通过热力学分析及钢-渣界面反应试验证明,当保护渣中SiO2含量低于6%时为非反应性保护渣.关键词:高铝钢; 结晶器保护渣; 低SiO2; 非反应性......
Denitrogenization from Liquid Steel by Fluxes TreatmentWenzhuo Guo Shantong Jin Xinhua Wang Jun Shu Metallurgy School, UST Beijing, Beijing 100083, China摘 要:<正> By measuring the solubility of nitrogen in BaO-contained and TiO2-contained fluxes at 1623K, the nitride capacity and nitrogen distribution ratio were calculated. Both fluxes had high......
The "Point" and "Volume" Fusion Behaviour of Prefused Type Powder Fluxes’金山同,邹明金摘 要:<正> The relationship among particle size, properties of heat transfer and melting rate of fluxes as well as the main factors which have effect on the prefused fluxes have been studied. Under the conditions of same components and particle size, the melting......
and Engineering, Chongqing University, Chongqing 400044, China摘 要:The time-temperature-transformation (TTT) diagrams of F-free mold fluxes was constructed using single hot thermocouple technique (SHTT) and confocal scanning laser microscopy (CSLM) to study the crystallization behavior of F-free mold fluxes. The tendency of crystallization is found......
Solidification and crystallization properties of CaO-SiO2-Na2O based mold fluxesK.C. MillsDepartment of Materials, Imperial College London摘 要:Crystallization properties play an important role in keeping a smooth running of continuous casting process and hi......
>Laboratory study was carried out on deep dephosphorization of liquid steel by BaO-based fluxes at 1600℃ to achieve ultra low phosphorus level in the steel. A dynamic model of dephosphorization of liquid steel by BaO-based fluxes was established. According to the model, the controlling step of dephosphorization by BaO-based fluxes was the mass-transfer of phosphorus in steel phase under......
Effect of fluxes on structure and luminescence properties of Y3Al5O12:Ce3+ phosphors徐时清,孙柳正,张颖,鞠海东,赵士龙,邓德刚,王焕平,王宝玲摘 要:Ce3+-activated yttrium aluminum garnet (YAG) was prepared by the solid-state reaction, in which H3BO3, LiF, NaF, KF and BaF2 were used as the fluxes. The effect of fluxes on optical properties of phosphors was studied in detail......