共搜索到3848条信息，每页显示10条信息，共385页。用时：0小时0分0秒610毫秒
J. Cent. South Univ. (2017) 24: 1155-1163 DOI: 10.1007/s11771-017-3518-5 Assessment of bearing performance degradation via extension and EEMD combined approach LIU Yu-mei(刘玉梅)1, ZHAO Cong-cong(赵聪聪)2... reliability of bearing influences the performance and service life of the equipment directly. In order to describe bearing performance degradation (BPD) process effectively, an assessment approach combining......
Removal of boron from metallurgical grade silicon by electromagnetic induction slag melting LUO Da-wei1, LIU Ning1, LU Yi-ping1, ZHANG Guo-liang1, LI Ting-ju1, 2 1. School of Materials Science...) by electromagnetic induction slag melting (EISM). Vacuum melting furnace was used to purify boron in different slag systems. The results show that the removal effect in SiO2-CaO-Al2O3 systems is better than......
转炉冶炼工艺过程中炉渣的岩相研究李建新1,郝旭东1,韩秀丽2,刘丽娜2,仇圣桃0,赵沛2(1.北京市钢铁研究总院连铸中心2.河北理工大学 资源与环境学院,河北唐山 063009)摘 要:不同转炉冶炼工艺对转炉渣的稳定性有较大影响,运用岩相检验的方法分析了不同转炉冶炼工艺和调整脱磷剂成分后转炉渣的岩相结构.通过比较常规工艺与新工艺的岩相结构,发现采用新工艺冶炼,岩相分布更加均匀,而且使用新型脱磷剂后高熔点相减少.转炉渣岩相分析结果为合理改进转炉冶炼工艺和改善转炉渣成分提供了科学依据.关键词:转炉炼钢......
Equilibrium between Slag and Molten Iron in the Direct Alloying of Steel with Nb2O5-Bearing Slag陈伟庆,周荣章,林宗彩摘 要:<正> Equilibrium between slag and molten iron at 1600℃ was investigated for the direct alloying of steel with Nb2O6-bearing slag. The activity of niobium oxide in the slag was measured. The αNb2O5 is in the range of 10-2-10-4. TheδNb2O5......
Properties of Steel Slag and Stainless Steel Slag as Cement Replacement Materials: A Comparative StudySALY Fathy1,GUO Liping1,2,3,MA Rui1,GU Chunping4,SUN Wei1,2,31. School of Material Science... types of steel slag; basicoxygen-furnace carbon slag(BOF C) and electric-arc-furnace stainless steel slag(EAF S). Moreover, we studied the standard consistency, setting time and the effect of the slag......
J. Cent. South Univ. (2017) 24: 478-488 DOI: 10.1007/s11171-017-3450-3 An algorithm to remove noise from locomotive bearing vibration signal based on self-adaptive EEMD filter WANG Chun-sheng(王春生)1... signal and locomotive bearing vibration signal. The results show that the proposed self-adaptive EEMD algorithm has a better filtering performance compared with the conventional EEMD. The filter results......
bearing early fault diagnosis ZHANG Zhao-heng(张兆珩)1, DING Jian-ming(丁建明)1, WU Chao(吴超)2, LIN Jian-hui(林建辉)1 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China... by bearing faults are key features for assessing gear-box bearing faults. However, because of heavy background noise and the interferences of other vibrations, it is difficult to extract these impulsive......
......
Calcination-Digestion-Desliming of Phosphorus Ore Bearing Rare Earth Wang Jing1,Zhang Qin1,Zhang Jie1,Qiu Yue qin1 (1.Guizhou University of Technology, Guiyang 550003, China) Abstract:The recoveries of phosphorus and RE of ore from Zhijin in Guizhou were studied.The influences of the calcination temperature, resident time, the digested time and water volume of the calcinating on concentrate......
of phosphate on the crystal grain growth of nanosized titania during high temperature calcination was investigated. Nanosized titanium dioxide powders prepared by hydrolysis of titanium tetrachloride were... of titania. The possible mechanism of the inhibition effect of phosphate on titania is discussed.关键词:......
