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Online since: June 2014
Authors: Zhan Xu Wang
Within the stipulated time, if cementing additives can not be supplied to the cementing equipment effectively, which will lead completions accident similar “enemas”, and causing huge losses of human. financial and material.
Finite Element Analysis 1.1 Deformation analysis on stator profile under uniform working pressure 1.1.1 Establishing model and meshing The geometric and physical parameters of the calculation model of the single screw pump are chosen as follows, the material of cylinder shell is 45 # steel and the outer diameter is 114mm, the material of stator is nitrile rubber and the outer diameter is 100mm.
Since the stator material is rubber, excessive deformation will be caused leading burst between the stator and the rotor.
Acknowledgements This work described in this paper was supported by the National Natural Science Foundation (Grant No.51374133), Qingdao Major Project (Grant No.13-4-1-2-gx), Natural Science Foundation of Shandong Province (Grant No.Y2007F70), Scientific and Technological Special Project of Shandong Province (Grant No.12110113), and Technology Development Project of China National Offshore Oil (Grant No.JSKF2002YJ35, JSKF2003YJ31).
[6] Zhang Jin, Zhang Shicheng, Finite Element Method on stator conventional screw[J] Journal of Mechanical Engineering, 40, (5):189-193。
Online since: April 2013
Authors: Esah Hamzah, Zaharah Ibrahim, Shahrir Hashim, Ahmad Abdolahi
Materials and Methods Materials.
By a repetition of this process, the final material appeared in a polymer mass with the silver particles embedded within it [16].
[3] Jae Hee Song, Bock Im Lee, Chae Min Lim, and Gyoujin Cho, Formulation of High Conducting Ink Using Composites of Ag Nanoparticles, Ag Nanowires, and Polyaniline, Nanotechnology Materials and Devices Conference, 2006 [4] Pranav Kumar Prabhakar, Sai Raj, P.R.
Singha, Joong Hee Lee, Progress in preparation, processing and applications of polyaniline, Progress in Polymer Science 34 (2009) 783–810
[9] Qingming Jia, Shaoyun Shan, Lihong Jiang, Yaming Wang, Dan Li, Synergistic antimicrobial effects of polyaniline combined with silver nanoparticles, journal of applied polymer science (2012) [10] Anna Drury, Shweta Chaure, Michael Kroll, Valeria Nicolosi, Nandu Chaure, and Werner J.
Online since: May 2012
Authors: Quan Cheng Zhou, Gui Hua Sheng
Supercritical fluid extraction (SFE) can penetrate into the pores of solid materials more effectively than techniques based upon liquid solvents, so it enables a much faster mass transfer, resulting in faster extractions (Tura et al., 2002; Zhou, 2004).
Materials and method 2.1.
European Journal of Cancer, 41(4), 647-654 [2] Boye, J.
Food Science.
Food Science, 28(1), 111-116 [4] Jenkins, D.
Online since: February 2008
Authors: Ling Chen, De Chang Zeng, Wan Qi Qiu, Xin Wei Shi, Zheng Yi Liu
The substrate materials were Si and high speed steel sheets.
Acknowledgement This work had been supported by the Provincial Key Science and Technology R&D Program of Guangdong under project № 2006A11002001 and the Civic Key Science and Technology R&D Program of Guangzhou under project № 2005Z3-D2061, № 2006Z2-D0131 and № 2006Z3-D0281 and the Natural Science Foundation of China under project № 50771045.
References [1] Vieira R A, Nono M C: Advanced Powder Technology Vol. 498-499 (2005), p.717 [2] Ono T, Uemura M, Yatsuzuka M: Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms.
Vol. 257 (2007), p.786 [3] Mendibide C, Steyer P, Fontaine J, et al: Surface & Coatings Technology Vol. 201 (2006), p.4119 [4] Dobrzanski L A, Polok M, Panjan P, et al: Journal of Materials Processing Technology.
[6] Leu M S, Chen B F, Chen S Y, et al: Surface & Coatings Technology Vol. 133 (2000), p.319 [7] Shi Z B, Tong H H, Liu X B, et al: Plasma Science & Technology Vol. 6 (2004), p.2581 [8] Cimenoglu H: Wear Vol. 210 (1997), p.204 [9] Minevich A A: Surface & coatings technology Vol. 53 (1992) p.161 [10] Zhang S, Sun D, Fu Y, et al: Thin Solid Films Vol. 447-448 (2004), p.462 MF MFAIP AIP Lower critical load Lc1 [N] 5.236 2.039 3.318 Higher critical load Lc2 [N] 9.376 7.079 5.975 CPRs=Lc1(Lc2- Lc1) 21.677 10.277 8.816
Online since: April 2012
Authors: Andrea di Schino, Mauro Guagnelli, Laura Alleva
Materials with a fully martensitic microstructure after quenching were considered.
LM micrographs and EBSD map of as-quenched materials with different average values of AGS.
Misorientation profiles of as-quenched (Q) and quenched and tempered (Q&T) materials.
Lopez Turconi: in Proceedings of the Third Joint International Conference on Recrystallization and Grain Growth, Materials Science Forum, 558-559, 1435-1441, 2007
Petch, Journal of The Iron and Steel Institute (1953), p.174.
Online since: August 2013
Authors: Yu Jie Li, Hui Jie Xu, Yuan Zhang, Juan Juan Yao
Carbon fiber cloth reinforcement method introduction Carbon fiber prefabricated plate is molding composite materials which made from carbon fiber and resin.
The reinforcement measures of concrete construction that using carbon fiber plate is making the high performance carbon fiber cloth kind of material paste in the surface of building structures.
It formatied advanced composite materials, which works with existing structures, and it reinforcement and improvement of mechanical structures of existing structures [4].
Material introduction 3.1.1 Material advantage Relative to ordinary construction reinforcement materials, carbon fiber board has many advantages ① Light itight, small thickness, don't increase the substrate thickness after reinforcement ② With good flexibility, can wrap complex shape components ③ High strength, high modulus of elasticity, creep under permanent loads ④ Acid and alkali chemical corrosion, resistance to shear bending, anti-aging, high temperature resistance ⑤ Construction is convenient, do not need to use heavy machinery, limited construction space is little, short construction period ⑥pollution-free, thixotropy and solubility, which accords with green environmental protection requirements ⑦ Long storage life, long operational period ⑧ Super waterproof effect, steel corrosion inhibition, suppression of crack continues to expand 3.1.2 Technical indexes The CFP carbon fiber plate used in the reinforcement construction is made from imported carbon fiber and resin
[3] Han Xia, Jiang Lin yu, Yan Li-e: The new materials and techniques about the reinforcement of tunnel lining engineering, volume 30, Journal of Guangxi university(Natural Science Edition)(2005),(in Chinese)
Online since: December 2009
Authors: Michihiko Hoshino, K. Suzuki
The material to be processed is injected into the lower die and fills the chamber (Fig. 3-(a)).
This is similar to the actual material, which is carbon powder combined with phenolic resin.
In this case, the length of the upper die is too long and the material stays at the surface of the upper die.
Supposing that the material is incompressible fluid without the phase transition and the material dose not leak out from a gap except for die exit, the ideal ratio of velocity is 10.65.
Journal.
Online since: October 2013
Authors: Lu Hua Zhong, Xiao Ping Lan, Guan Yue Tan, Xi Ming Sun
Introduction The very important method of developing new materials is blending different polymers.
When we design and develop new materials, we must know the compatibility of the two components.
(b).Add the mixed materials to the Twin screw extruder, then granulate.
(c).Weigh 105 grams the granulated materials, put them into the open mill to mix the pellets into sheet form.
Polymer Materials Science and Engineering. 2004,20)1):5-8.
Online since: August 2016
Authors: Armida Gillado, Everjoy Mones, Marvin U. Herrera
If both materials are connected, they can form p-n heterojunction.
A simple physical connection of the two materials showed a diode-like behavior.
Felix, Tailoring the Electrical Properties of ZnO/Polyaniline Heterostructures for Device Applications, Journal of the Korean Physical Society 58 (2011) 1256-1260
Korostynska, Thin film pn-junctions based on oxide materials asg-radiation sensors, Sensor Actuat A 113 (2004) 307–311
Brillson, Surface and interface of electronic materials.
Online since: December 2006
Authors: Nik Rozlin Nik Masdek, Raden Dadan Ramdan, Iswadi Jauhari, Rafidah Hasan
Experimental Procedure The substrate material used in this study is duplex stainless steel (JIS SUS329J1).
The chemical composition of the material is shown in Table 1.
It can be seen from the figure that the higher the applied pressure, the deeper the carbon atoms diffuse into the substrate material which results in a thicker carbon layer.
Dybowski: Materials Processing Technology Vol. 164-165 (2005) p. 876-881 [3] M.
Usta: Surface and Coatings Technology Vol. 199 (2005) p. 205-212 [4] Cabrera, J.M., Mateo, A., Llanes, L., Prado, J.M., Anglada, M.: Journal of Materials Processing Technology Vol. 143-144 (2003) p. 321-325 [5] Jauhari, I., Ogiyama, H., and Tsukuda, H.: Materials Science Research International. 9, 2 (2003) p. 154-159 [6] S.S.