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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......
Drying and preheating processes of iron ore pellets in a traveling grateJun-xiao Feng, Yu Zhang, Hai-wei Zheng, Xiao-yan Xie, and Cai Zhang School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China摘 要:A mathematical model of drying and preheating processes in a traveling grate was presented based on the laws......
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... of tungsten inert gas(TIG), a model of non-steady three-dimensional temperature field for red copper’s TIG welding with a locomotive arc was established. The temperature field of welding pool was calculated......
test and hardness tests, etc. The results showed that the preheating treatment of T2-Y copper base material is beneficial to improve the spreadability of weld metal, and the different protective gas... Hua-fen, XIE Hao-feng, et al. Development status and prospects of advanced copper alloy[J]. Strategic Study of CAE, 2020, 22(5): 84-92. [6] SHIRI S J, NAZARZADEH M, SHARIFITABAR M, et al. Gas tungsten......
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Gas Quenching Small Components Paul Stratton1 (1.BOC, Sheffield, UK) 摘要:Gas quenching is an environmentally friendly and effective way of quenching components. However it has not been possible to apply it to small components because of the difficulties of jigging. A method of gas quenching such small components is described in which they are levitated in a confined gas stream. The method......
的纤维束被斜切断,产生这种现象的原因是三维编织的预制体中纤维之间存在交织. 图3 预热温度500 ℃下3D-Cf/Al复合材料微观组织 Fig. 3 Microstructures of 3D-Cf/Al composite at preheating temperature of 500 ℃ 图4所示为不同预热温度下3D-Cf/Al复合材料和Cf/Al复合材料横切面显微... and continuous Cf/Al composites under different preheating temperatures 式中:p为毛细作用力；σ为液-气界面上的表面张力；θ为润湿角；r为等效毛细管半径. 当管道半径很小时,要求的附加压力则会很大,碳纤维的平均直径为6~8 μm,碳纤维预制体的束内及束间的间隙均达到了亚微米和纳米级.同时,由于三维五向编织预制体内部纤维相互交织......
Numerical simulation of high temperature air combustion in aluminum hydroxide gas suspension calcinations LIU Dai-fei(刘代飞)1, DING Feng-qi(丁凤其)1, ZHANG Hong-liang(张红亮)1, ZHENG Wen-bo(郑文波)2 1...; Abstract: The high temperature air combustion(HiTAC) process in gas suspension calcinations(GSC) was studied by using a CFD software FLUENT......
Accelerated Gas Carburizing (URX Gas Carburizing) Hiroyuki Nakatsu1,Mamoru Kamitani1,Yoshikazu Shimosato1 (1.Chugai Ro Co., Ltd., Osaka, Japan) 摘要:URX gas carburizing is an accelerated gas carburizing method with 50% CO + 50% H2 gas which comes from CH4 gas + CO2 gas. By using this gas composition, the carburizing reaction rate increases to the maximum and the controllability of carbon......
uncertainties of some measured and calculated parameters 4 Results and discussion In order to study the effects of EGR combined with intake preheating on performance and exhaust gas emissions of a dual...J. Cent. South Univ. (2012) 19: 1346-1352 DOI: 10.1007/s11771-012-1148-5 Effect of exhaust gas recirculation and intake pre-heating on performance and emission characteristics of dual fuel......
