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Experimental The Preparation of Composite Materials.
Journal of Materials Engineering. 38(2000) 38-41 [3] X.N.
Key Engineering Materials. 249(2003) 217-222
ORDNANCE MATERIAL SCIENCE AND ENGINEERING. 32(2009) 90-95
Rare Metal Materials and Engineering. 43(2014) 029-033

Heat Treatment of Heavy Forgings with diameter 1700mm Su Juan-hua1, Liu Xiao-fei1,Chen Yun-yun1, Shi Yu-lin2 1 Henan University of Science and Technology, Luoyang 471003； 2CITIC Heavy Machinery Inc.
Acknwledgement: This work is funded by Science and Technology Research Project of Henan Province 102102210174, by Special Fund for Important Forepart Research in Henan University of Science and Technology(2008ZDYY005), and by the Startup Foundation for Doctor Scientific Research in Henan University of Science and Technology (20061009).
References [1] Y.L.Shi: Mining and Processing Equipment, Vol. 10 (2000), p. 61 (In Chinese) [2] S.W.Thompson, G.Krauss: Metallugical Transctions A Vol. 20A (1989),p, 2279 [3] Y.D.Lu:Heat Treatment of Metals Vol. 29 (2004), p. 41(In Chinese) [4] Y.D Song, J.Y.Jin, ZY.Liu: Heavy Casting and Forging Vol. 4 (1998), p. 34(In Chinese) [5] M.Jahazi, B.Eghbali:Journal of Materials Processing Technology Vol. 113(2001):,P.594 [6] Y.Yazawa, T.Furuhara,T.
Maki: Acta Materialia Vol. 52(2004),P.3727 [7] Y.D.MA, Y.D.Zhai, Youyong Li: Journal of NanJing University of Science and Technology (Nature Science), Vol 21(1997), p. 560(In Chinese) [8] H.Yun, C.J.Shen, X.R Lei: Heat Treatment of Metals Vol. 29 (2004), p. 68 (In Chinese) [9] Z.C.Liu, Z.C.Yang, Y.P.Hu:Heat Treatment of Metals Vol 28(2003), p. 51(In Chinese) [10] S.M.
Giessen: Metallugical and Material Transctions A Vol. 31A(2000),p. 125 [11] H.Zhang: Heat Treatment of Metals Vol. 27 (2002), p. 53(In Chinese)

At the same time, difficult processing materials in the manufacture of machinery are widely used, such as stainless steel, heat-resistant steel and titanium alloy, and this has put forward higher requirements for the cutting technology.
Liu at Changchun University of Science and Technology and Prof.
The authors gratefully acknowledge the financial support provided by the National Science Foundation (Grant No.51305043).
[3] Li Jianzhong, Luan Jijie, Yu Huilan et al, in: A New Method of Electrode Wear Compensation in 3D Micro-EDM, Journal of Dalian University of Technology, 2011,51 (4): 525-528
[6] Wang Zhenlong, Zhao Wansheng, Liu Guangzhuang, in: RESEARCH ON LAMINATED REMOVAL MICRO-EDM, Chinese Journal of mechanical engineering manufacturing principle based on the layered, 2002,38 (2): 22-26

The vital role of the construction industry is cooperation through relations from various other sectors, such as the material processing industry, energy, finance, transportation, and mining.
· Based on the time factor, the rank order of the disputes is climate change, work that is not according to the specified schedule, and delay in providing materials and tools
· Based on the cost factor, the ranking of disputes is obtained by increasing the price of materials and wages, disputes and delays related to payment, and contractor errors in submitting prices during tenders.
Based on the cost figure, disputes are ranked by expanding the cost of materials and compensation, debate and delays related to instalment, and temporary worker mistakes in submitting expenses amid tenders
The most influential cost factor is the increase in material prices and wages.

We assume the product manufactured with recovered materials is the same with that made with new materials and product recovery actions can decrease product costs proportionally with e.
C0 is the cost of per unit product made with new materials, then Ci=C0(1-eiK) stands for the cost of product made with recovered materials.
Management Science, 2006, 52(1): 1-14
Management Science, 2006, 52(1): 15-26
Chinese Journal of Management Science, 2009, 17(5): 46-52 (in Chinese)

Materials and Methods Materials.
Acknowledgements This study was funded by the Natural Science Foundation of Jiangsu Province, China (Grant No.
Li: Science.
Vovk: Journal of the Chemical Society, Chemical Communications, Vol. 12 (1995), p. 1281 [7] X.
Tomson: Journal of Chemical and Engineering Data.

Materials and methods Materials DCSM was kindly supplied by Guangdong Taiyuan Agricultural,Co.
Acknowledgement The authors would like to thanks national science found(31130042,20976036) science and technology project fund of china(2012BAD37B00),science and technology project fund of guangdong province(2010B050600003,2010B031700014).
S et al.Journal of Agricultural and Food Chemistry,Vol.54(2006),p. 8945–8950
New York, USA: Elsevier Applied Science Publishers (1986)
[11] Tang C H.Journal of Food Engineering.

Corvo: Corrosion Science Vol. 47 (2005), p.461–484
[3] Chen Z, Huang L, Zhang G: Corrosion Science Vol.65 (2012), p.214-222
[6] Kang Z, Ye Q, Sang J: Journal of Materials Processing Technology Vol. 209 (2009), p.4543-4547
[9] Ri Weng, Shi-feng Huo: The Chinese Journal of Corrosion and Protection Vol. 7 (1987), p.286-291
[11] Frabcis R: Corrosion Science Vol. 26 (1986), p. 205-212

Effects of Rare Earth Elements on the Quality of Nugget in Aluminum Alloy Spot Welding Dong Jiantao1,2,a, Luo Zhen1,2,b *, Zhou Linshu1,2,c, Hao Jian1,2,d 1School of Materials Science and Engineering, Tianjin University, Tianjin, China 2Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin, 30072, China aTao861122@163.com, blz@tju.edu.cn, c soar-001@163.com, dHjddzxx163@163.com  Keywords: aluminum spot welding, nugget, rare earth element, strengthening Abstract.
The following expression is commonly used: σy =αPy –β (1) The ultimate strength σb is directly related to the maximum stress Pmax by means of expressions like the following: σb =αPmax –β (2) Where α, β are material parameters.
Acknowledgements This research was supported by National Nature Science Funds of China (grant 50975197), State High-tech Research and Development Plans (the 863 plans) (grant 2008AA04Z136), Project Funds for New Century Talents of Ministry of Education, Double-Five Science and Technology Projects of Tianjin municipality colleges (grant 2009E6-0020), Integration Project of Production, Teaching and Research of Ministry of Educational of Guangdong Province(grant 2007A0903021050), and Applied Basic Research Funds of Tianjin municipality (grant 09JCZDJC24000) References [1] LI Qing-song.
Journal of Nuclear Materials.
Journal of the Chinese Rare Earth Society.

Application of Reverse Engineering Technology on Beverage Packaging Chunsheng Tao1,a, Qiao Bai1,b, SongBai Ma1,c 1School of Material Science and Mechanical Engineering Beijing Technology and Business University Beijing, China,100048 ataochunsheng@th.btbu.edu.cn, bbaiqiao@th.btbu.edu.cn, cmasongbai@th.btbu.edu.cn Keywords: Reverse Engineering, Beverage Packaging, Data Processing, Model Abstract: This article briefly introduces the concept, processes and key technologies of reverse engineering.
Therefore, it is significant for the development of national economy and improvement of the science and technologies to study the reverse engineering technology.
There is no special requirements for the materials and reflective of the measured object.
It is not affected by the material and thickness of the object.
(in Chinese) [2] Y.H.Wang, W.Y.Wu, Reverse Engineering Oriented to Creative Design, Journal of Machine Design, 10(2007) 1-3.