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Numerical simulation of tungsten alloy in powder injection molding process ZHENG Zhen-xing(郑振兴)1, XIA Wei(夏 伟)1, ZHOU Zhao-yao(周照耀)1, ZHU Quan-li(朱权利)1 School of Mechanical...; Abstract: The flow behavior of feedstock for the tungsten alloy powder in the mold cavity......
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Research on Laser Cladded Nickel Based Nanometer Tungsten Carbide Composite Coating DAI Jian-qiang1,ZOU Chang-gu1,YAN Min-jie1,XI Wen-long1,ZHANG Guang-jun1,GE Da-fang1,WANG Hui-Ping1 (1.Shanghai... of nanometer WC/Co introduced into the coating plays an important role in the laser cladding processes. 关键词:Laser cladding; nanometer granulation; nickel based tungsten carbide coating......
Influence of earth gravity on reaction engineering of tubular reactor for high concentration tungsten ion-exchange ZHAO Zhong-wei(赵中伟), XIAO Lu-ping(肖露萍), GUO Chi-hao(郭持皓), CHEN Xing-yu(陈星宇... beneficial compared with downflow-feeding mode, since the flow pattern of the fluid in the reactor is closer to plug flow. The result of dynamic experiment conducted in ion-exchange of tungsten......
as a potential intermediate for preparing tungsten trioxide and tungsten powder in the cleaner extractive metallurgy of tungsten from scheelite and/or wolframite concentrates [5]. Considering the great...Trans. Nonferrous Met. Soc. China 29(2019) 1099-1106 Effect of iron valence on hydrothermal preparation of pyrochlore-type tungsten oxide Qiu-sheng ZHOU, Min XIANG, Dong LI, Xiao-bin LI, Tian-gui QI......
High Temperature Gaseous Rare-Earth Permeation of Polyoxotungstates:An New Effective Method for the Preparation of Tungsten Bronzes 郭元茹1,韦永德1,李中华1,周百斌1 (1.Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China) Abstract:New polyoxometalate α-K12H3[Y(BW11O39)2]·25H2O was synthesized and treated by high temperature gaseous rare earth permeation to prepare tungsten......
PREPARATION OF NANOSTRUCTURED TUNGSTEN POWDERS曹立宏,傅磊,樊友三摘 要:<正>The preparation of nanostructured tungstenpowders has been studied by using.... Tungsten powders ofmean particle size of 40 nanometer,and specific surface areaof 3×104m2/kg have been prepared. The shape of nanostruc-tuted tungsten powders is sphere.关键词:......