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Effects of A-EMS processing parameters on semisolid slurry productionCHEN Xingrun,ZHANG Zhifeng,and XU Jun National Engineering & Technology Research Center for Nonferrous Metal Matrix Composites... and fluid flow model in semisolid Al alloy slurry preparation by A-EMS was developed.The effects of A-EMS processing parameters such as stirring current,stirring frequency and stirring gap width......
Annulus electromagnetic stirring for preparing semisolid A357 aluminum alloy slurry BAI Yue-long(白月龙), XU Jun(徐 骏), ZHANG Zhi-feng(张志峰), SHI Li-kai(石力开) General Research Institute... slurry prepared by annulus electromagnetic stirring(AEMS) technology were investigated. The results show that low pouring temperature and narrow annulus gap are advantageous to obtaining the small......
J. Cent. South Univ. Technol. (2008) 15: 645-649 DOI: 10.1007/s11771-008-0120-x Hydraulic calculation of gravity transportation pipeline system for backfill slurry ZHANG Qin-li(张钦礼), HU Guan-yu... Mining Group, Shandong Province, China, as an example, the hydraulic calculation approaches and process about gravity pipeline transportation of backfill slurry were investigated. The results show......
PREPARATION STUDY OF SEMI-SOLID 60Si2Mn SPRING STEEL SLURRY W.M.Mao1,L.P.Zhang1,D.Yun1,X.Y.Zhong1,A.M.Zhao1 (1.University of Science & Technology Beijing, Beijing 100083, China) Abstract:The nondendritic semi-solid slurry preparation of 60Si2Mn spring steel is studied in this paper. The experiments show that when stirred for 2 minutes under the test condition, the semi-solid slurry with 50%-60......
characterized into high and low densities. The coatings were applied by a two-step approach: pack cementation and silica sol based slurry coating processes. The relationship between the microstructure... words:mullite; carbon-carbon composite; slurry coating; isothermal oxidation......
Effects of solution treatment and aging process on microstructure refining of semi-solid slurry of wrought aluminum alloy 7A09 WU Xin(吴 欣), HAN Fei(韩 飞), WANG Wei-wei(王卫卫) School of Material... as a pretreatment in preparing semi-solid slurry with fine microstructure before isothermal treatment of wrought aluminum alloy 7A09. Parameters of pretreatment were optimized by orthogonal experiment design......
Performances and emissions of a petroleum coke oil slurry engineXIANG Li-ming(向立明)1, LI Xing-hu(李兴虎)1, CAI Chu-jiang(蔡楚江)2, SHEN Zhi-gang(沈志刚)2(1. School of Transportation Science and Engineering... of fuel system when using petroleum coke oil slurry (PCOS) in a R180 diesel engine directly, a petroleum coke oil slurry fuel system (PCOSFS) was developed and installed in R180 engine, which......
工艺条件对蓝宝石化学机械抛光的影响汪海波,俞沁聪,刘卫丽,宋志棠,张楷亮中国科学院上海微系统与信息技术研究所信息功能材料国家重点实验室,纳米技术研究室摘 要:系统研究了抛光液的pH值,抛光压力和相对转速等因素对蓝宝石抛光速率和表面粗糙度的影响,研究结果表明:随pH值(9-12)的升高,抛光速率增加,表面粗糙度先降低后升高;随抛光压力和相对转速的增加,抛光速率先增加后降低,表面粗糙度先降低后升高.研究分析认为:pH值因影响在蓝宝石表面形成的水化层从而影响抛光速率和粗糙度;与抛光压力和相对转速相关的Hersey系数对抛光效果影响很大,当Hersey系数为24时,蓝宝石的抛光速率和表面平整度均达到最佳.关键词:蓝宝石;化学机械抛光(CMP);二氧化硅;pH值;Heresy系数;......
Factors influencing the pumpability of unclassified tailings slurry and its interval divisionPeng Li1,2,3,Yun-bing Hou4,Mei-feng Cai1,2,31. School of Civil and Resource Engineering,University... of the unclassified tailings slurry from an iron mine and analyze the influence of the concentration,amount of consolidation agent, and types of consolidation agent on the pumpability in terms of the slump......
Numerical simulation of the preparation of semi-solid metal slurry with damper cooling tube methodHaoqiang Yang, Shuisheng Xie, and Lei Li State Key Laboratory for Fabrication and Processing of Nonferrous Metals, Beijing General Research Institute for Nonferrous Metals, Beijing 100088, China摘 要:In semi-solid forming process, preparing the slurry......
