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Research on Virtual Manufacturing of Chain Rolling Cold Bend Section Steel Model Guochang Li1,a 1School of Economics and Management, Hebei University of Science & Technology, Shijiazhuang 050018, China aE-mail Address: lgckdjg@163.com Keywords: cold bend section, chain structure, dynamic manufacture, technical measures.
a Rolling process b Linked list structure Rolling time Rolling time Rolling time Linked node Linked node Linked node Fig.1 Corresponding relationship between rolling process and chain structure In the equation, E, H, y------ respectively for material elastic modulus, strengthen coefficient and poisson’s ratio coefficient; -------equivalent stress; -------deviator of stress.
So, every loading step is to finish, the material point coordinate and stress value have to be adjusted
Acknowledgments This work is supported by Natural Science Foundation of Hebei Province Nos: E2011208014; Research and Develepment Project of Hebei Province Nos: 11457202-8.
Research on Intelligent Cold Bend Forming Dynamic Chain Model Basic Framework, Journal of Hebei University of Science and Technology,33,3:224-227(2012) [2]Ying Zhou, D.

Materials, Methods and Discussion Materials. 99.999 % pure ZnO powder was used as main component.
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Matter 16 [8] A.G.E.
Journal of Materials Science, Springer, 42, pp 6036-6040, 2007
Advanced Materials Research, 576. pp. 203-207, 2012
Key Engineering Materials, 181-182, p.231, 2000

Finally, the field of nuclear fusion has found numerous uses for these materials.
Vertical material method.
Huazhong University of Science &Technology, 2003(In Chinese) [2] JEON M K, KIM W B, HAN G C, et al.
Journal of Materials Processing Technology, 1998, 82(1): 53-60 [3] Zedong JIANG, Fangming ZHOU, Guipeng LI, Yiyu Qian.
Journal of East China Ship building Institute, 2005, 19(2): 90-93(In Chinese) [4] Zedong JIANG.

Effect of the interface Control process of wood fiber/PLA on properties of composites Yi-qiang Wu 1, a, Xiao-mei Liu 2, b and Xin-gong Li 3, c 1,2,3 School of Materials Science and Engineering Central South University of Forestry and Technology , Changsha, P.R.
The CO2 which comes from the degradation of composite materials will be absorbed by NaOH.
Chemical Materials for Construction, 2008, 24(3): 1-4
Chinese Journal of Materials Research, 2007, 21(2): 119-120
Journal of Forestry Research, 2005, 16(3): 241-244

A climate chamber (Fig. 2 right), developed at the Institute of Material Science and Engineering at the University of Kaiserslautern was applied between the gripping jaws of the testing machine to realize temperatures down to -60 °C.
Weber: Application of advanced materials for ship construction – Experiences and problems, Materials and Corrosion Volume 51, 6 (2000) pp. 407-412 [5] M.
Sheikh: Investigation into Characteristics of Portevin-Le Chatelier Effect of an Al-Mg Alloy, Journal of Materials Engineering and Performance Volume 19, 9 (2010) pp. 1264 -1267 [10] P.
Harig: Estimation of the fatigue limit by progressively increasing load tests, Fatigue & Fracture of Engineering Materials & Structures Vol. 3 (1980) pp. 113-128 [12] Y.
Estrin: On the relations between Portevin le Chatelier Plastic instabilities and precipitation, Key Engineering Materials Volumes 97-98 (1994) pp. 235-250

Khalili et al. [5] published a research whose objective is the study of the drying process of ceramic materials with known chemical composition and to analyze the process using the method of analysis of the Finite Elements.
The most recent literature comes, therefore, demonstrating the power of numerical simulation in reproducing the drying processes of materials.
Drying has been applied to different materials, such as: grains, fruits, vegetables, wood, ceramic products, etc.
In addition, controlling the migration of water inside the materials allows preventing the surface layer dry faster than the rest of the material, avoiding structural damage.
Silva, Drying of Ceramic Hollow Bricks in an Industrial Tunnel Dryer: A Finite Volume Analysis, The International Journal of Multiphysics, 8 (2014), 297-312

Experimental material and procedure.The samples [3] are taken from the continuous casting billet for HRB335C steel whose composition is shown as table1.
Acknowledge This work was supported by the National Natural Science Foundation Project (61004135) Reference: [1] WANG Xin-hua, WU Dong-mei.
International Materials Reviews Vol.36(1991), p.187 [5] T C Tszeng, S Kobayashi.
Journal of Materials Processing Technology Vol.102(2000), p.143 [7] X.
Science and Technology of Welding and Joining Vol.15(2010), p.87 [10] M El-Bealy, N Leskinen, H Fredriksson.

It is the favorable material used on sensitive element of ultrasonic transducer.
It is one of the important parameters of piezoelectric material.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No.61302015), the Scientific Research Key Program (No.KZ201110772040) and General Program (No.SQKM201211232022) of Beijing Municipal Commission of Education.
Chinese Journal of Acoustics, 2011, 36(6): 631-637 (in Chinese) [3] Denghua Li, Weijun Ju, Meijuan Jia, Xiaofei Xu, New piezocomposite transducer and its application.
Science Press. 2007 (in Chinese) [4] W.A.Smith.

A novel feasible purifying strategy for nano-sized calcium phosphate based biomaterials Wei Zhou1, a, Jun Zheng2 1 College of Medical Technology and Engineering, Henan Univerisity of Science and Technology, Luoyang, 471000, China 2 State Key Lab of Material Processing and Die & Mould Technology, Huazhong Univerisity of Science and Technology, Wuhan, 430074, China a weizhou002@163.com (corresponding author) Keywords: nano-sized biomaterials; purifying strategy; dialysis tubing Abstract.
a) b) c) Fig.2 TEM pictures of nano-HAP (a), nano- fluoride-substituted HAP (b) and nano-ß-TCP (c) synthesized by D-process Materials and methods Hydroxyapatite nano-crystals were synthesized by a wet chemical method.
Yang et al.: Materials letters Vol. 59 (2005), p. 1422-1425
Rubini: Journal of solid state chemistry Vol. 177 (2004), p. 3092-3098
Zhou et al.: Key Engineering Materials Vols. 330-332 (2007), p. 219-222.

Material parameters of harmonic gear drive are listed in Tab.1.
Tab. 1 Material parameters of harmonic gear drive Components of harmonic gear drive Flexspline Circular spline, wave generator and output shaft Material type 30CrMnSi 45# Steel Tensile modulus [GPa] 204 210 Poisson's ratio μ 0.29 0.3 Density ρ [g·cm-3] 6.691 7.85 Tensile strength [MPa] 885 355 Fig. 4.
Journal of Mechanical Engineering. 2006, Vol. 42, p. 52-57(In Chinese)
Materials and Design. 2007, Vol. 28, p.129～134 [5] Ostapski W.
Bulletin of the Polish Academy of Sciences-Technical Sciences. 2010, Vol. 58, p.683～698.