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Online since: December 2011
Authors: Zhi Hong Li, Zhi Gang Zhang, Yu Mei Zhu
Influence of Different Pore-forming Mechanism on Superfinish Grinding Tools
Zhigang Zhang1, a, Yumei Zhu2, b and Zhihong Li3, c
1School of Material Science and Engineering, Tianjin University, Tianjin, China
2School of Material Science and Engineering, Tianjin University, Tianjin, China
3Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin, China
asky_zhigang@163.com, bzhuyumei@tju.edu.cn, clizhihong@tju.edu.cn
Keywords: Superfinish grinding; Pore-forming mechanism; Porosity; Pore-forming ability
Abstract.
Because of the high demand on the surface finish quality of processed materials, generally, the grinding tool is prepared with abrasive of micron scale.
There are lots of ways to add or produce pores into materials.
What’s more, two fatal elements must be taken into account in the preparation technology of porous materials with pore-forming agents adding.
Due to the low refractoriness, the sintering temperature was not high enough, and then pore-forming materials could not completely react.
Because of the high demand on the surface finish quality of processed materials, generally, the grinding tool is prepared with abrasive of micron scale.
There are lots of ways to add or produce pores into materials.
What’s more, two fatal elements must be taken into account in the preparation technology of porous materials with pore-forming agents adding.
Due to the low refractoriness, the sintering temperature was not high enough, and then pore-forming materials could not completely react.
Online since: October 2007
Authors: Xie Min Mao, Hui Hu, Gao Feng Song, Hua Ping Xu, Chong He Li
Wang: Functional Materials.
Zhu: Materials for Mechanical Engineering, Vol. 29(2005),p. 54 [3] Z.
Duan: Journal of Functional Materials, Vol. 14(1993), p. 261 [4] Motoyasu, Mkaneko, H.
McLean: Metallurgical and Materials Transactions A, Vol. 32A(2001), p. 68 [5] T.
Tadaki, in: Shape Memory Materials, edited by Cambridge University, Britain, (1998), in press
Zhu: Materials for Mechanical Engineering, Vol. 29(2005),p. 54 [3] Z.
Duan: Journal of Functional Materials, Vol. 14(1993), p. 261 [4] Motoyasu, Mkaneko, H.
McLean: Metallurgical and Materials Transactions A, Vol. 32A(2001), p. 68 [5] T.
Tadaki, in: Shape Memory Materials, edited by Cambridge University, Britain, (1998), in press
Online since: September 2013
Authors: Chang Meng Liu, Hong Min Sun, Miao Miao Liu, Xiao Xian He
Xiaomin Zhang[8] studied the extraction process of lycopene with tomato skin as raw material.
Rozzi[11] studied the effect of different temperature and pressure on extraction ratio, with tomato skin and seeds as materials.
Food Science, Vol.31(2010), pp. 39-44 (In Chinese)
Journal of northwest pharmacy.
JOURNAL OF XINJING AGRICULTURAL UNIVERSITY, Vol.34(2010), pp. 240-243 (In Chinese)
Rozzi[11] studied the effect of different temperature and pressure on extraction ratio, with tomato skin and seeds as materials.
Food Science, Vol.31(2010), pp. 39-44 (In Chinese)
Journal of northwest pharmacy.
JOURNAL OF XINJING AGRICULTURAL UNIVERSITY, Vol.34(2010), pp. 240-243 (In Chinese)
Online since: August 2010
Authors: Xiao Dong Yang, Jun Peng Shao, Xiao Qiu Xu, Yun Fei Wang, Chao Yin, Hui Jiang
Table 1 Material properties
Part Material Young's Modulus
(Gpa)
Poisson's Ratio Density
(kg/m3)
Thermal Expansion
(1/K)
Workbench HT300 200 0.3 7850 1.2×10
-5
Base HT200 110 0.28 7200 1.14×10-5
Oil-pad 2A12 71 0.33 2820 2.36×10-5
Fig.2 Simplified model of workbench
Fig.3 Simplified model of base
Fig.4 FE model of workbench
Fig.5 FE model of base Hydrostatic bearing thermal deformation equations and boundary conditions
Hydrostatic bearing thermal deformation equations.
Thermal expansion increases with velocity increasing, especially for oil-pad, which adopts 2A12 aluminum alloy as material, and the material has a larger thermal expansion coefficient than cast iron.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No.50975066) and Key Item of Heilongjiang Province Natural Science Foundation of China (No.zjg0702-01) and Science and Technology item of Heilongjiang Provincial Education Department (No.11551080) and Science and Technology Item of Heilongjiang Provincial Education Department (No.11531051) and National Science and Technology Major Project(No. 2009ZX04002-042) References [1] Nelias D, Antaluca E, Boucly V.
International Journal of Precision Engineering and Manufacturing Vol. 8-1 (2007), p. 32-39
Journal of Henan Institute of Science and Technology(Natural Science Edition) Vol. 37-3 (2009), p. 48-51
Thermal expansion increases with velocity increasing, especially for oil-pad, which adopts 2A12 aluminum alloy as material, and the material has a larger thermal expansion coefficient than cast iron.
Acknowledgments This work was supported by the National Natural Science Foundation of China (No.50975066) and Key Item of Heilongjiang Province Natural Science Foundation of China (No.zjg0702-01) and Science and Technology item of Heilongjiang Provincial Education Department (No.11551080) and Science and Technology Item of Heilongjiang Provincial Education Department (No.11531051) and National Science and Technology Major Project(No. 2009ZX04002-042) References [1] Nelias D, Antaluca E, Boucly V.
International Journal of Precision Engineering and Manufacturing Vol. 8-1 (2007), p. 32-39
Journal of Henan Institute of Science and Technology(Natural Science Edition) Vol. 37-3 (2009), p. 48-51
Online since: May 2011
Authors: Wei Juan Li, Yu Hong Wang, Lan Jin
The Effect of Bainitic Transformation Microstructure under Applied
Stress on Corrosion Resistance of HQ785 Steel
Yuhong Wang a, Weijuan Li b , Lan Jinc
School of Materials and Metallurgy, University of Science and Technology Liaoning,
Anshan 114051, China
awyh_2004am@yeah.net, bliweijuan826@163.com, cjinyatou1023@163.com
Keywords: HQ785 steel, Applied tensile stress, Microstructure, Corrosion resistance
Abstract.
Experimental material and method The experimental materials is HQ785 steel, with chemical components (mass fraction) :C, 0.05%; Si, 0.40%; Mn, 1.76%;P, 0.011%; S ,0.007%; Cr, 0.02%, Mo, 2.326%; V, 0.002%; Ni, 0.335%; Cu, 0.593%; Nb, 0.0054%.
References [1] T.FURUHARA, H.KAWATA and S.MORITO: Metallurgical and Materials Transactions A.
In Chinese [3] Jie Dong, Wenfang Cui, Sixun Zhang, etal: Journal of Northeastern University(Natural Science).Vol. 28(2007), p. 1293~1296.
In Chinese [4] A Di Schino, J M Kenny: Journal of Materials Science Letters.
Experimental material and method The experimental materials is HQ785 steel, with chemical components (mass fraction) :C, 0.05%; Si, 0.40%; Mn, 1.76%;P, 0.011%; S ,0.007%; Cr, 0.02%, Mo, 2.326%; V, 0.002%; Ni, 0.335%; Cu, 0.593%; Nb, 0.0054%.
References [1] T.FURUHARA, H.KAWATA and S.MORITO: Metallurgical and Materials Transactions A.
In Chinese [3] Jie Dong, Wenfang Cui, Sixun Zhang, etal: Journal of Northeastern University(Natural Science).Vol. 28(2007), p. 1293~1296.
In Chinese [4] A Di Schino, J M Kenny: Journal of Materials Science Letters.
Online since: October 2010
Authors: Hazman Seli, Ahmad Izani Md. Ismail, Endri Rachman, Zainal Arifin Ahmad
International Journal of Mechanical Sciences 1990;32:467
Welding Journal 1998;77:202
Finite element modelling of the inertia friction welding process between dissimilar materials.
Journal of Materials Processing Technology 2002:387
[8] Internet : The Online Materials Information Resources http://www.matweb.com. 2010.
Welding Journal 1998;77:202
Finite element modelling of the inertia friction welding process between dissimilar materials.
Journal of Materials Processing Technology 2002:387
[8] Internet : The Online Materials Information Resources http://www.matweb.com. 2010.
Online since: October 2014
Authors: Jun Feng Zhang, Su Fen Sun, Li Min Chuan, Huai Guo Zheng, Cui Ping Tan
Materials and Methods
Literatures related to nutrient cycling in 2000-2011 were retrieved from CNKI database, and datasets from field experiments by International Plant Nutrition Institute conducted were combined to analyze the K nutrient input and output parameters.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No.4, p. 145-151.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No. 4, p. 151-154.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No. 5, p. 193-196.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No. 5, p. 197-199.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No.4, p. 145-151.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No. 4, p. 151-154.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No. 5, p. 193-196.
Wang: Chinese Journal of Soil Science, Vol. 27(1996) No. 5, p. 197-199.
Online since: July 2011
Authors: Fan Bai, Xiao Chang Wang
Materials and methods
Experimental device and raw matters.The experimental device used in this study is a closed composting reactor as shown in Fig. 1.
IRT0853), Baoji University of Arts & Sciences(ZK2559, YK1030).
Jin:Water science and technology, Vol. 53(9) (2006), p. 35-44
[7] Wang Hong-bo,Wang Xiao-chang:Chinese Journal of Environmental Engineering,Vol.01 (2008), p.97-100,in chinese
[13]Wang Hong-bo,Sun Yan,Wang Xiao-chang:Journal of Safety and Environmental,Vol.02 (2008), p.43-46,in chinese
IRT0853), Baoji University of Arts & Sciences(ZK2559, YK1030).
Jin:Water science and technology, Vol. 53(9) (2006), p. 35-44
[7] Wang Hong-bo,Wang Xiao-chang:Chinese Journal of Environmental Engineering,Vol.01 (2008), p.97-100,in chinese
[13]Wang Hong-bo,Sun Yan,Wang Xiao-chang:Journal of Safety and Environmental,Vol.02 (2008), p.43-46,in chinese