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31.
In order to solve the serious pollution of industrial altunintim electfolysis cell, the researchand development of the usage of inert anode andcathode has an importal significance. However, the lltilization of inert anode is not successful yet, the using of titanium diboride as a mixtUre of carbon for use as the ineft cathode prepared by coating TiB,-C mixtllfe for the electfolysis of altunina in Hall-Heroult cell is wellknownll--6]. With such a cathode, a large savingin the production cost … 相似文献
32.
STUDY ON VARIATION OF SETTING AND STOPPING PRESSURES OF SAFETY VALVE WITH STRUCTURAL MODIFICATION 总被引:1,自引:0,他引:1
Lee Jinho Kwangzin Valve Industrial Co Ltd Korea Kim Harkbong Kim Moonsang School of Aerospace Mechanical Engineering Hankook Aviation University Korea 《机械工程学报(英文版)》2001,(2):127-138
0 INTRODUCTIONSafetyvalveisplayinganinevitableroleofsafetyunitfunctioninboilerandvariousother pressurevesselsandhasbeenarrangedsystematicallysoastobe permittedtomanufactureonlythroughstrictinspectionteststipulatedinrelevantorganizationsoftheIndustrial… 相似文献
33.
IntnMluctiouIn the passage of a centrifugal impeller, there is notonly a secondary flow toward a suchon-side from aPressure-side along a casing or a hub s~e but also aleakage flow through a clearance between a casings~e and a blade hp. The~, it is imPOI'tant tO clarifysuch a passage flow with regard to the design of acentrifugal turbomashinery with high efficiency.The impeller passage nows have been inveshgatedfrom the flow measurementS with a pressure Probe, ahot-wire anemometer and a LDV… 相似文献
34.
DISSOLUTION THEORY OF GOLD IN ALKALINE THIOUREA SOLUTION(Ⅰ) Anodic Behavior on Gold in Alkaline Thiourea Solution Containing Na_2SO_3 总被引:2,自引:0,他引:2
Chai Liyuan Masazumi Okido Department of Nonferrous Metallurgy Central South University of Technology Changsha P. R.China Center for Integrated Research in Science Engineering Nagoya University Nagoya Japan 《中国有色金属学会会刊》1999,(1)
INTRODUCTIONSincethioureawasutilizedasthelixiviantofgoldearlyin1932[1],extractinggoldfromoreorscrapbyacidicthioureasolutionha... 相似文献
35.
STUDY ON SHIFT SCHEDULE AND SIMULATION OF AUTOMATIC TRANSMISSION 总被引:3,自引:1,他引:2
0 INTRODUCTIONThe main powertrain of engineering vehicle,suchas loader, bulldoZer and scraper etc, adopthydrodynamic drive in order to improve theadaptability to heavy lo.d[ l '2]. However, the transm-ission efficiency of hydrodynamic drive is very lOw,especially althOugh driveline is supposed to supplyhuge power under heavy load, it contrarily degradelargely even to zero. Hydrodynamic drive causes workefficiency low, and energy waste. The wasted energywas transfOrmed into heat lead to o… 相似文献
36.
Pan Hongge Department of Materials Science Engineering Zhejiang University Hangzhou P. R. China 《中国有色金属学会会刊》1999,9(2)
1INTRODUCTIONMetalhydrideshavebeenusedasnegativeelectrodesofnickel/metalhydridebateriesinplaceofcadmium,becauseoftheirhighene... 相似文献
37.
MEASUREMENT OF ANODIC OVERVOLTAGE BY AMODIFIED CURRENT INTERRUPTION METHOD IN CRYOLITE-ALUMINA MELTS 总被引:1,自引:0,他引:1
Yang Jianhong Lai Yanqing Xiao Jin Li Jie Liu Yexiang Department of Nonferrous Metallurgy Central South University of Technology Changsha P. R. China J. Thonstad Nowegian University of Science Technology Norway 《中国有色金属学会会刊》1999,9(1)
1INTRODUCTIONIntheelectrolyticproductionofaluminium,thecelconsistsofacarbonanodeandanaluminiummetalcathode.Thedominantpotent... 相似文献
38.
Thoriumisamainsourceofradioactivityintherareearthminerals.Thetraditionalprocestoremovethoriumconsistsofseveralstepsincluding... 相似文献
39.
INTRODUCTIONTo accommodate the requirement of lightweight,for many machine systems, such as flexiblemanipulator, large solar array and flexible antennas ofspacecraft, flexibility has become an imPOrtantcharacteristic. But flexible vibration can degrade badlythe peforance and the precision of flexible systems.Control of vibration becomes very important asdesigners attempt to push the state of the art withfaster and lighter machines systems. Researchers haveexammed many different controlle… 相似文献
40.
1 Introduction Laser - producedplasma (LPP)isanattrac tivetabletopEUVsourceforapplicationinEUVlithographyduetoitssmallsize ,highpeakpowerandspatialstability .However,theconventionalLPPsourcewithmetaltargethasaseriousdisad vantageofejectinghigh -temperaturea… 相似文献