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of atomization gas pressure of 0.19 MPa.The enhanced properties are attributed to the following factors,which include the grain refinement,the fine and homogeneous distribution of Al Cu and MgZn2 phases...Microstructure and Properties of 7075Al Alloy Fabricated by Directly Combined of Spray Forming and Continuous Extrusion Forming under Different Atomization Gas PressuresYe-Gao Chen,Yi Zhong,Jiang......
, first by a high-pressure gas jet and then by a low-pressure water jet, and further cooled by the water jet. It is a novel powder preparation technique unlike water atomization and gas atomization...-gas atomization through cold isostatic pressing (CIP) and sintering under atmospheric hydrogen. Fine copper powder possesses the higher sintering driving force, thereby promoting shrinkage......
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J. Cent. South Univ. (2016) 23: 2838-2844 DOI: 10.1007/s11771-016-3347-y Fragmentation mechanism of low-grade hematite ore in a high pressure grinding roll YUAN Zhi-tao(袁致涛)1, LI Li-xia(李丽匣)1, HAN...-grade hematite ore in a high pressure grinding roll (HPGR) was studied based on the characteristics of comminuted products at different specific pressure levels. The major properties included......
Ping, SHI Jin-guang, WENG Zi-qing, GU Xiao-long. Effects of gas-atomized pressure on morphology and properties of TC4 powder prepared by electrode-induced gas atomization[J]. Materials Science... superheat on gas atomization process[J]. Journal of Central South University of Technology, 1997, 28(2): 149-151. [23] ACHELIS L, UHLENWINKEL V. Characterisation of metal powders generated by a pressure......
Solidification Behavior of in situ TiB2/Cu Composite Powders during Reactive Gas Atomization姜伊辉,ZHANG Mingshu,LI Yufa,HE Jiangtan,CAO Fei,梁淑华Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi’an University of Technology摘 要:2wt% TiB2/Cu composite powders were fabricated in situ by reactive gas atomization.The......
to expect significant improvement of high pressure gas quenching technology. 关键词:gas quenching; heat transfer; modelling; [全文内容正在添加中] ...Optimising Gas Quenching Technology through Modelling of Heat Transfer Qingfei Zhang1,Aymeric Goldsteinas2,Xavier Doussot2,Florent Chaffotte3,Didier Domergue3,Linda L4 (1.Air Liquide Shanghai Co......
is built up, and the mathematical model is derived from the flow rate formulas and flow conservation equations, with the compressibility of high pressure gas and temperature drop during the expansion...J. Cent. South Univ. Technol. (2011) 18: 666-671 DOI: 10.1007/s11771-011-0745-z Pneumatic resistance network analysis and dimension optimization of high pressure electronic pneumatic pressure......
First principles study on electronic structure and optical properties of novel Na-hP4 high pressure phase SHI Yi-min(施毅敏)1, YE Shao-long(叶绍龙)2 1. Department of Basic Teaching, Hunan... Abstract: The electronic structure and optical properties of novel Na-hP4 high pressure phase at different pressures (260, 320, 400 and 600 GPa) were investigated by the density functional theory (DFT......
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......
