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by centrifugal casting LIN Xue-dong1, Xun-jia2, LIU Chang-ming3 (1. College of Mechanical Engineering, Chongqing Vocational Institute of Engineering, Chongqing 400037, China; 2. Xuzhou Construction... tubes were prepared under different conditions by centrifugal casting. Along the radial direction and the direction perpendicular to the axial direction of the castings, the microstructure......
; centrifugal casting; WC/ steel matrix composite; microstructure; carbide; WC particles; [全文内容正在添加中] ......
利用离心喷雾干燥制备球形粉体的工艺因素研究 王慧1,钟余发1,程小苏1,刘平安1,税安泽1,曾令可1 (1.华南理工大学材料科学与工程学院,广州,510640) 摘要:研究了铝矾土料浆的离心喷雾造粒过程,考察了料浆固含量,粘度,喷雾头的旋转速度对粉体干燥的影响.从颗粒内部水分迁移的距离,空气进出口温度两方面,分析了蘑菇头颗粒,变形颗粒,球形颗粒和破裂颗粒等颗粒形貌的形成原因,并优化了一组工艺参数:喷雾头转速为12000r/min,料浆固含量为50%,热风入口温度为300℃,废气出口温度为115℃,塔内负压为-350Pa,料浆流速为4L/h,料浆的粘度为14s,在此条件下能制备出球形度高,颗粒粒径集中分布在55μm左右的粉体. 关键词:离心喷雾干燥; 工艺因素; 粒度分布; 球形度; centrifugal spray drying; process factors......
转方向; 旋转半径; vertical centrifugal casting; filling sequence; rotational direction; rotational radius; [全文内容正在添加中] ......
nappe structure was studied comprehensively using geomechanics, fault mechanics, elastic mechanics, and Coulomb’s law of friction. First, using the centrifugal inertia force of Earth’s rotation...; thrust nappe structure; centrifugal inertia force; fault mechanics; slip-line field theory; Coulomb’s law of friction......
; 文章编号:1672-7207(2008)06-1257-05 Recovery of iron from fine iron tailings by continuous centrifugal concentration CHEN Lu-zheng1, XIONG Da-he2, REN Nan-qi1, ZHAO Xin1 (1. State Key Laboratory... centrifugal concentrator (SLon pilot centrifugal concentrator) was used to study the effects of drum rotation speed and reciprocating velocity of water sprays on the separation performance......
and expansion based on centrifugal model test YAN Qiu-rong1, 2, LIU Yong-jiang2 (1. School of Civil Engineering, Chongqing University, Chongqing 400030, China; 2. Chongqing Communications Research... rod, unequal settlements, lateral displacements of slope face, lateral pressure at the end of the slope and displacement fields were studied through centrifugal model test. At the same time, the effect......
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and numerical simulation of gas-liquid two phase flow in a low specific speed centrifugal pump LI Chongqing1, SHAO Chunlei1, 2 (1. School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing... of gas-liquid two-phase flow patterns and bubble diameter in a low specific speed centrifugal pump, high-speed camera was used to perform the visualization experiment. Moreover, Eulerian-Eulerian......
