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TiO2 反应体系的起始反应温度降低了 1 30℃左右.在整个反应过程中 , 熔剂起清除存在于TiO2 与Al间的Al2 O3膜的作用.熔剂FX1与Al2 O3的反应产物是一种新的熔剂 , 这种新的熔剂对Al2 O3具有溶解和吸附作用.TiAl3的形态与反应温度,粉末加入方法及粉末加入量有关.随着制备工艺的不同 , TiAl3可能呈粒状,块状,梅花状或针片状. 关键词: 熔体直接反应法;熔剂;Al/TiAl复合材料; 中图分类号: TG14 收稿日期:2000-02-28 Effect mechanism of flux in Al-TiO2 reaction system and TiAl3 morphology Abstract: Initial reaction......
Trans. Nonferrous Met. Soc. China 22(2012) 23-29 Effects of activating flux on CO2 laser welding process of 6013 Al alloy QIN Guo-liang1, 2, WANG Guo-gang2, ZOU Zeng-da2 1. State Key Laboratory... is much higher than that with fluoride activating flux in CO2 laser welding of 6013 Al alloy. Key words: laser welding; aluminum alloy; activating flux; weld appearance; gas pore 1 Introduction Laser......
Article ID: 1003-6326(2005)06-1373-07 Relationship between solids flux and froth features in batch flotation of sulphide ore YANG Xiao-sheng(杨小生)1, Aldrich Chris2 (1. Institute... on the volume fraction of solid in the froth, and the froth features during the batch flotation are influenced by impeller speed and aeration rate. A kinetic model of the concentrate solid flux......
中碳钢板坯保护渣性能优化及提高拉速工业试验研究赵紫锋1,王新华1,张炯明1,梅峰2,康建国2(1.北京市北京科技大学 冶金与生态工程学院2.宝山钢铁股份有限公司 技术中心,上海 201900)摘 要:通过提高保护渣碱度以及渣中CaF2和Li2O含量,对中碳钢板坯用保护渣进行了优化,并采用优化的保护渣进行了提高拉速工业试验.结果表明:优化的保护渣具有较高结晶温度,较低的粘度和熔点;试验过程中,采用优化的保护渣液渣层厚度平均增加约2 mm,单耗增加0.03 kg/m2;采用优化的保护渣在1.5 m/min拉速下和采用原渣在1.3 m/min拉速下浇铸时,结晶器传热强度,传热的稳定性以及浇铸出的铸坯质量等项目水平相当.关键词:中碳钢； 板坯； 拉速； 保护渣......
. 图1 基于磁链观测的速度估计仿真模型 Fig.1 Simulation model of speed estimation based on flux observation 将速度估算模型直接加入到DTC变频调速系统中,估计速度只用于进行速度观测,不作为速度反馈信号参加系统控制[14].DTC调速系统的外环速度调节器的反馈信号仍为电机提供的真实转速. 为了...基于感应电机磁链观测器的速度辨识 曾谊晖1, 2,朱 浩2,朱有为3 (1.湖南大学 机械与运载工程学院,湖南 长沙,410082； 2. 湖南涉外经济学院 数控中心,湖南 长沙,410205； 3. 长沙大学 先进制造技术中心,湖南 长沙,410003) 摘 要:针对模型参考自适应速度辨识方法虽然其辨识精度高,但其数学模型复杂,而且在实时控制中需要高速控制器与......
Preparation of casting alloy ZL101 with coarse aluminum-silicon alloy YOU Jing(尤 晶)1, WANG Yao-wu(王耀武)1, FENG Nai-xiang(冯乃祥)1, YANG Ming-sheng(杨明生)2 1. School of Materials Science and Metallurgy... Al-Si alloy; flux refining; removing iron ......
Sol-gel preparation and characterization of Li1.3Al0.3Ti1.7(PO4)3 sintered with flux of LiBO2WU Xianming,LI Runxiu,CHEN Shang,HE Zeqiang,and MA Mingyou College of Chemistry and Chemical Engineering... and the boundary and corner of the particles become illegible with the increase of LiBO2.Among the Li1.3Al0.3Ti1.7(PO3)4 pellets sintered with different mole fractions of LiBO2,the one sintered with 1 mol% LiBO2......
Correlation between pass-through flux of cobalt target and microstructure and magnetic properties of sputtered thin filmsXiu-Lan Xu1,Qian-Ming Huang2,Guo-Nan Feng1,Gang Han1,Qi-Xun Guo1,Xiao-Dong Xiong3,Xin He3,Jun-Feng Luo3,Rong-Ming Wang2,Chun Feng1,Guang-Hua Yu1,41. School of Materials Science and Engineering,University of Science and Technology Beijing2. School of Mathematics and Physics......
with fast neutron. This is attributed to an improvement of flux pinning capability by the neutron induced defects, but the weak link structure is somewhat damaged as evidenced by the small degradation...% after irradiated to a fluence of 2 × 1021 m-2, which resulted in the critical currents degradated by a factor of 10%. Key words:neutron irradiation; critical current; flux pinning; weak link; [全文内容正在......
