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., Zhongli District, Taoyuan City 32001, Taiwan 2Department of Mechanical Engineering, Chien-Hsin University of Science and Technology, NO.229, Jianxing Rd., Zhongli Dist., Taoyuan City 32097, Taiwan abenno@ncu.edu.tw, bacwang@uch.edu.tw, cbhyen@cc.ncu.edu.tw, dbon.jason@gmail.com Keywords: electropolishing, vacuum status, stainless steel Abstract.
For example, when grinding ceramic materials with low damage toughness, they are prone to cracks due to the influence of external grinding forces. when grinding aluminum materials with high ductility, the grinding chips are easily packed on the surface of the grinding wheel, resulting in low grinding efficiency.
References [1] Hai-Ping Tsui, Biing-Hwa Yan, Wei-Te Wu, Sheng-Tsai Hsua, (2007), “A study on stainless steel mirror surface polishing by using the electrophoretic deposition method,“ International Journal of Machine Tools & Manufacture, vol. 47, pp.1965-1970
Lee and et. al.,(2003), “The effects of electropolishing (EP) process parameters on corrosion resistance of 316L stainless steel,” Journal of Materials Processing Technology, vol. 140, pp.206-210
H Wang, (2003), “The Effects of Convection on Electropolishing,”Yuan-Ze University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Mechanical Engineering, Chungli, Taiwan.

Without the addition of water to clay no strength would be achieved, as the sand and clay would be just two dry materials.
Since bonding materials are not highly refractory, the required strength must be obtained with the minimum possible addition [9] and due to this reason addition of 4% bentonite has been selected.
Materials And Methods The sand mixture was prepared by mixing 1000 grams of dry sand with 40 grams of bentonite clay, and subjected to milling for 5 minutes.
[2] Information on http://maps.google.com.my [3] Loto, C.A., “ Effect Of Cassava Flour And Coal Dust Additions On The Mechanical Properties Of Synthetic Moulding Sand”, Journal of Applied Clay Science, Elsevier Science Publisher B.V., Amsterdam, (1990), p. 249-263
[6] Griffiths, J., 1990, “Minerals in Foundry Casting, Investment in The Future”, Industrial Minerals Journal, (1990), p. 39-51

The Relevant Technology Research on Heat Balance Control of Aluminum Reduction Cell Xiangyang Xia,Jie Li School of Metallurgical Science and Engineering ,Central South University, Changsha,410083，China xia_xy@126.com Keywords: Aluminum Reduction Cell; Energy Balance; Electrolyte Temperature; Energy Saving Abstract: Due to the energy balance control of aluminum reduction cell has not solved so far, it analyzes the impact factors on electrolyzer’s heat balance (i.e., electrolyte temperature), and proposes a corresponding method of heat balance control ,which provides relevant measures for aluminium electrolysis industry ,s energy saving.
Table 1 Indicators table between aluminum electrolyzation technology in China and advanced aluminum enterprises in foreign country Technology type/Featurs North America Western and Northern Europe China Current efficiency [%] 93-94% 94-96 93-94 DC consumption [kWh/kg.Al] 13.8-14.5 13.0-13.2 13.3-13.6 Slot’s working voltage[V] 4.3-4.4 4.05-4.15 4.05-4.18 Anodic current density [A/cm2] 0.8-0.9 0.76-0.82 0.7-0.73 Overplus of aluminum fluoride AlF3[%] 12-13% 13% 8-10% Anode effect coefficient [times/day] 0.03-0.05 0.03 0.1-0.3 Actually, the material balance of aluminum reduction cell has been resolved by alumina concentration’s intelligent control; but the balance control has not got a good solution, that is, to keep the aluminum electrolyte temperature in appropriate range.
[2] LI Jie,DING Feng-qi,LI Ming-jun,etc.Intelligent anode effect prediction method for prebaked-anode aluminum reduction cells[J].Journal of Central South University(Science and Technology,2001,2(1):29-32
The Chinese Journal of Nonferrous Metals,2007,17(7):1182-1187
[9] LI JIE,KONG Ling-shuang,YANG Chun-hua.Raw mix slurry quality prediction model used for alumina sintering production process[J].The Chinese Journal of Nonferrous Metals,2006，16(3)：536-541

The random variables (rotor speed ω, material density ρ of objects, temperatures at different locations and surface coefficients of heat transfer) were selected in Table.1.
Acknowledges This paper was supported by the National Natural Science Foundation of China (grant nos. 51175017, 51275024), Innovation Foundation of BUAA for Ph.D Graduates and Research Foundation for the Doctoral Program of Higher Education.
Journal of Propulsion and Power 2004; 20(2):302–311
Journal of Engineering for Gas Turbines and Power 2005; 127(3): 564–572
Journal of Aerospace Computing, Information and Communication, 2011, 10(1):58–63

Numerical results and discussion The structure discussed in this paper is an isotropic thick elastic cylinder rotating about its center axis, which has the same geometric properties and material properties in literature [5].
Acknowledgements The research is financially supported by the “Strategic Priority Research Program” of the Chinese Academy of Sciences, Grant N0.XDA304000.
Journal of Vibration, Acoustics, Stress and Reliability in Design 1998, 110: 533-537
International Journal of solid and structures, 2002(39):725-739
Journal of Sound and Vibration, 1981, 74(2), 331-350

The Modal Analysis of Roller Chain Drives Baolin Li1, Shuai Fan1, Yan Zhang2 1School of Mechanical and Electrical Engineering, China University Of Mining And Technology, Xuzhou221008, Jiangsu, China 2Zaozhuang Vocational College of Science and Technology, Zaozhuang277500, Shandong, China fanxiaoshuai521@163.com Keywords: roller chain, modal analysis, natural frequency, harmonic response Abstract.
Geometrical parameters of tension side chain are shown as follows: pitch p=8mm, the number of inside link plate combination is 10, the number of outside link plate combination is 9, the number of independent hinge pin is 2, elastic modulus E=2.1E5MPa, density of the material ρ = 7.8E3 kg/m.
Journal of Tianjin Institute of Technology.
Journal of Shandong University(Engineering science).
Journal of Mechanical Transmission.

It shows the elastic-plastic buckling of the plastic material mainly.
Journal of Harbin University of Civil Engineering and Architecture.(1985), Vol.1, P. 86 .
Journal of Bridge Engineering , Vol. 6 (2001) , P. 514
Beijing: Science Press,2003.
Journal of Huazhong University of Science and Techenology, Vol.25 (2008),P.128 .

Introduction White LEDs has been used widely in lighting field for the advantages of energy-saving and environment-protecting, generally white LEDs used semiconductor emitting chips stimulate phosphor material and mix light form white emission.
[2] Ikeda M S H, Mesopic luminous efficiency functions, Journal of the Optical Society of America,1981,71:280-284
Spectral luminous efficiency functions in the mesopic range, Journal of the Optical Society of America A: Optics and Image Science,1986,3(1):71-75
,Journal of Chongqing University (Natural Science Edition), 2007, 30（1）：139~146.

The bearing heat rate’s calculation process and results are shown in Table1 Table 1 The bearing heat rate’s calculation parameter The front bearing The back bearing the heat source， the volume， the heat rate， 3The finite element model The finite element model of the belt spindle is established according to the basic principles of the finite element method, simplified the bearing, making the bearing and septum as a whole, choose the same material, which is convenient for analysis.
Acknowledgements The authors gratefully wish to acknowledge the supports of National Natural Science Foundation of China (51105002), China Postdoctoral Science Foundation and National Key Projects (2011ZX04002-132, 2012ZX04005-021).
References [1] Heqiang.The development trend of high-speed railway bearing，Journal of Xuzhou Institute of Technology，2012，01，39-43 [2] LI Wei, Research of the CH4 Sensitivity of WO3 Nano Crystalline Powders Made from Gas-state Reaction, Journal of Xuzhou Institute of Technology，2008，04，19-23 [3] YONG ZHOU , YONGGANG LUO.Double-main shaft double-speed compound numer control milling machine.
[4] HanweiHe,ShouyaJia,CN 101787552(2011) [5] Heqiang.The Research of Nano-particles as Lubricant Additives，Journal of Xuzhou Institute of Technology，2011，03，39-43 [6] HongboLan,CN 101205054(2011) [7] Gino Palumbo, Lain Brooks, Jonathan McCrea, US20050205425A1(2005)

Fig. 1 Geometry of tubular X-joint Fig. 2 Typical analysis model Cowper-Symonds[6] model is adopted to simulate the steel material of tubular joint under impact loading, the dynamic yielding function is : (1) Where, D and n are the rate-dependent parameter (D= 40 s-1, n=5), is dynamic yield stress for steel, is static yield stress yield, and is strain rate for steel.
Chinese Journal of Computational Mechanics. 2004, 21(1):26-32.
Journal of Jiangsu university of science and technology (nature science edition). 2007, 21(4): 1-6.
Experimental study on tubular T-joints under drop hammer impact loads [J] Journal of building structures. 2013, 34(4): 65-73.