共搜索到27090条信息,每页显示10条信息,共2709页。用时:0小时0分0秒705毫秒
. WANG Xu. The effect of alloying elements on the microstructure and properties of Cf/Al composite[D]. Harbin: Harbin Institute of Technology, 2010. Effect of fiber preheating temperature... performs woven by M40 graphite fiber with the fiber volume fraction of 51%. The effects of preheating temperature on the microstructure and tensile strength of 3D-Cf/Al composites were studied......
Numerical simulation of temperature field during gas preheating and start-up of drained aluminum reduction cell ZHOU Ping(周 萍)1, WANG Zhi-qi(王志奇)2, ZHOU Nai-jun(周乃君)1 1. School of Energy... of numerical simulation was applied to investigate gas preheating and start-up process in a drained aluminum reduction cell. The transient temperature and velocity fields of a 156 kA drained aluminum......
SiCf/Al 复合材料;真空气压浸渗;纤维预热温度;显微组织;力学性能Effects of fiber preheating temperature on density and mechanical properties of continuous SiCf/Al composites manufactured by vacuum pressure infiltrationLIAO Huan... fabricated by precursor method. The effects of fiber preheating temperature on the microstructure and mechanical properties of continuous SiCf/Al composites were studied. The results show......
Simulation on temperature field of TIG welding of copper without preheating LEI Yu-cheng(雷玉成), YU Wen-xia(郁雯霞), LI Cai-hui(李彩辉), CHENG Xiao-nong(程晓农) School of Materials Science and Engineering... have been notably improved. The experimental results proved that it was feasible to apply the no preheating welding of red copper. 2) The temperature field of the TIG welding with different technical......
J. Cent. South Univ. Technol. (2008) 15(s1): 135-139 DOI: 10.1007/s11771-008-332-0 Experimental evaluation on high temperature rheological properties of various fiber modified asphalt binders...: High temperature rheological properties of fiber modified asphalt binders and impact of the type and content on such properties were studied. Three types of fiber, including polyester (PET......
Effect of Preheating Temperature on Surface Cracking of High Nitrogen CrMn Austenitic Stainless SteelZhenhua Wang1),Wantang Fu1),Shuhua Sun1),Zhiqing Lv1) and Wenhui Zhang1,2) 1) State Key Laboratory... investigated using optical microscopy and scanning electron microscopy.The results showed that the hot workability of 18Mn18Cr0.5N steel gradually decreased with increasing preheating temperature......
......
assisted machining, shape of preheating laser heat source is changed irregularly because of complexity of material shape. So, the preheating temperature should be controlled by adjusting the feed rate... angles and adjusted proper feed rate was proposed. The results of this analysis can be used to predict the preheating effect on workpiece and can be applied as a preheating temperature control method......
Application of fiber Bragg grating sensor network in aluminum reduction tank shell temperature monitoringJIANG Ming-shun(姜明顺)1,2, SUI Qing-mei(隋青美)1, MIAO Fei(苗飞), Jia Lei(贾磊)1, PENG Peng(彭蓬)2(1... shell temperature and cell status was discussed. Fiber Bragg grating (FBG) was chosen as the temperature sensor in light of its unique advantages. The accuracy of designed FBG temperature sensors exceeds......
and the relative densities of the fiber felt increase with the increasing of both the sintering temperature and the sintering time. And the activation energies estimated present a decline at high relative densities for both 8 μm and 20 μm fiber felts. Moreover, the sintering densification of the fiber felts is dominated by volume diffusion mechanism at low temperature and relative densities......