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Online since: January 2012
Authors: Chung Gil Kang, Y.P. Jeon, H.Y. Seo
However, commonly, there are limitations on reducing the thickness due to technical reasons related to the Surface Mounting Technology (SMT) for a PCB, material of the case, forming process, and assembly, and the paces of development of other technologies is slow.
For this study, a sheet metal of heat-treated SK5 steel was used as the material for fabricating the flat spring.
Generally, the hardness of raw SK5, which is a carbon tool steel, is only 170 ± 10 HV; however, the mechanical properties of the material can be controlled relatively easily by varying the heat treatment conditions in a process called austempering.
The material used to fabricate the spring wire rod is SUS301H, which is widely used for mobile phones, and the chemical composition is as shown in Table 3.
Nam: ASME Journal of mechanical design Vol. 129 (2007) p. 930-940
For this study, a sheet metal of heat-treated SK5 steel was used as the material for fabricating the flat spring.
Generally, the hardness of raw SK5, which is a carbon tool steel, is only 170 ± 10 HV; however, the mechanical properties of the material can be controlled relatively easily by varying the heat treatment conditions in a process called austempering.
The material used to fabricate the spring wire rod is SUS301H, which is widely used for mobile phones, and the chemical composition is as shown in Table 3.
Nam: ASME Journal of mechanical design Vol. 129 (2007) p. 930-940
Online since: September 2011
Authors: Si Die Wu, Jian Wu Lan, Shao Jian Lin, Si Chen
And then, the materials obtains elasticity.
Experimental Materials.Trimellitic anhydride,purchased from aladdin,was dried 6 hours under vacuum condition at 140˚C.Aminobenzoic acid(PABA),1,4-butanediol and benzoic acid were used as received, toluene and N,Ndimethylformamide(NMP) were dried with calcium hydride,distilled under reduced pressure, all these chemical reagents were purchased from Chengdu Kelong solvent plant.
Acknowledgements This work was financially supported by Chinese National Nature Science Foundation (50973064).
Hsiao: European Polymer Journal (2006)42 p. 328 [5] G.
Experimental Materials.Trimellitic anhydride,purchased from aladdin,was dried 6 hours under vacuum condition at 140˚C.Aminobenzoic acid(PABA),1,4-butanediol and benzoic acid were used as received, toluene and N,Ndimethylformamide(NMP) were dried with calcium hydride,distilled under reduced pressure, all these chemical reagents were purchased from Chengdu Kelong solvent plant.
Acknowledgements This work was financially supported by Chinese National Nature Science Foundation (50973064).
Hsiao: European Polymer Journal (2006)42 p. 328 [5] G.
3D Topography Analysis of Ball-End Milled H-13 Die Steel Surfaces Using Wavelet Decomposition Method
Online since: May 2016
Authors: Jun Zhao, Shuai Liu, Xian Hua Tian, Wen Zhen Qin
Surmann [3] found that the machinability of the engineering materials has a strong dependency on cutter inclination angles.
Experimental details The workpiece material is H-13 steel which is widely used in die&mould industries because of its good mechanical and thermal properties.
The roughnesses in different scales are linked with machining process and material property closely.
Acknowledgements This work is sponsored by the Science and Technology Development Program of Shandong Province (2014GGX103041), and the National Basic Research Program of China (2009CB724402).
Wang, et al: International Journal of Machine Tools and Manufacture.
Experimental details The workpiece material is H-13 steel which is widely used in die&mould industries because of its good mechanical and thermal properties.
The roughnesses in different scales are linked with machining process and material property closely.
Acknowledgements This work is sponsored by the Science and Technology Development Program of Shandong Province (2014GGX103041), and the National Basic Research Program of China (2009CB724402).
Wang, et al: International Journal of Machine Tools and Manufacture.
Online since: March 2011
Authors: Xin Fa Dong, Sheng Min Zhang, Wan Qiang Chu
When it comes to the end of the building, Completion shape draws, and then still wants to add a different material and colors are added to the different parts of the building.
If the operators want to assign a material for all windows, they can close all layers except window layer.
Add the material to all the windows after picking up suitable material thus the batch quantity handles raises efficiency.
References [1] ZHOU Guangzhao, “Modern Graphics Technology,”Shandong Science & Technology Press, 2001.
(in Chinese) [4] LIU Yongxiang, Journal of Engireering Graphics, vol.25, No.3, pp.86–90.
If the operators want to assign a material for all windows, they can close all layers except window layer.
Add the material to all the windows after picking up suitable material thus the batch quantity handles raises efficiency.
References [1] ZHOU Guangzhao, “Modern Graphics Technology,”Shandong Science & Technology Press, 2001.
(in Chinese) [4] LIU Yongxiang, Journal of Engireering Graphics, vol.25, No.3, pp.86–90.
Online since: October 2010
Authors: Xing Guo Zhang, Zheng Ren, Jian Min Song, Xiu Rong Zhu, Gu Xin Zhou, Xin Bing Zhao
Effect of Ca, Sc and Er microalloying on the microstructure and properties of AZ61 alloys by electromagnetic casting
Zheng Ren1, 2, a, Jianmin Song2, b, Xiurong Zhu2, Guxin Zhou2, Xinbing Zhao1 and Xingguo Zhang3
1Zhejiang Universtity, Zhejiang 310027, China
2The Ningbo Branch of Ordnance Science Institute of China, Ningbo 315103, China
3Dalian University of Technology, Dalian 116024, China
arenzheng1981@163.com, bjmsong66@163.com
Keywords: AZ61. microalloying. electromagnetic casting.
High strength properties combined with quite low density make them very attractive as structural materials in applications where weight saving is of great importance [1].
Tensile tests were conducted at an initial strain rate of 10-2 s-1 at room temperature on MTS NEW-810 Materials Test System.
[26] Zhongjun Wang, Caipei Zhang and Xiaohong Shao: The Chinese Journal of Nonferrous Metals Vol. 17 (2007), p. 181 ( in Chinese).
High strength properties combined with quite low density make them very attractive as structural materials in applications where weight saving is of great importance [1].
Tensile tests were conducted at an initial strain rate of 10-2 s-1 at room temperature on MTS NEW-810 Materials Test System.
[26] Zhongjun Wang, Caipei Zhang and Xiaohong Shao: The Chinese Journal of Nonferrous Metals Vol. 17 (2007), p. 181 ( in Chinese).
Online since: December 2013
Authors: Xin Gao, Qi Long Han, Zuo Ming Zhu, Qi Yun Zhang
Chemical propellants & polymeric materials, 2008, 6(6): 13-16, 29.
Chinese Journal of Explosives & Propellants, 2012, 35(4): 49-53.
China national defense science and technology report, GF-A0088865N.
Chemical propellants & polymeric materials, 2013, 11(2): 89-92.
Chinese Journal of Explosives & Propellants, 2012, 35(4): 49-53.
China national defense science and technology report, GF-A0088865N.
Chemical propellants & polymeric materials, 2013, 11(2): 89-92.
Online since: December 2012
Authors: Lu Meng, Rui Dong, Qing Fu Xiong, Qian Wang
Modulation Method
The OCT basic principle is that when linearly polarized light passes through magneto-optical materials, affected by the parallel external magnetic field, Faraday rotation will appear between incident polarized light and exit polarized plane.
The relationship between and measured current i is as below: (1) Where N is the number of turns in which measured current surrounds the magneto-optical materials; V is Verdet constant [6].
Journal of North China Electric Power University, Vol. 28, No. 2, pp. 14-18, Apr. 2001
Science Press, 1997
The relationship between and measured current i is as below: (1) Where N is the number of turns in which measured current surrounds the magneto-optical materials; V is Verdet constant [6].
Journal of North China Electric Power University, Vol. 28, No. 2, pp. 14-18, Apr. 2001
Science Press, 1997
Online since: February 2013
Authors: Shou Qi Wei, Si Si Zhu, Zhen Yuan Su, Ming Li, Xu Chen, Zhi Jie Liu
Figure1 Disposal process of the device
The cooling system
The temperature of the exhaust gas and other materials from the burning chamber are very high, and then some treatments such as neutralization, dust collection using bag, desalination should be carried out, so the cooling system should be used, otherwise the high temperature gas will damage the next processing equipments.
Beijing: Chemical Industry Press,2005 [3] Xie Rong, The Experimental Study of Integral Medical Waste Pyrolysis Incinerator [Doctoral Dissertation],Huazhong University of Science and Technology [4] Zhao Chun, Discussion of medical waste incineration technology, North Environment,2001 [5] Duan Huabo, Qifei Huang, Qi Wang, etc.
Journal of Hazardous Materials, 2008, 158(2-3):221-227 [6] J.
Beijing: Chemical Industry Press,2005 [3] Xie Rong, The Experimental Study of Integral Medical Waste Pyrolysis Incinerator [Doctoral Dissertation],Huazhong University of Science and Technology [4] Zhao Chun, Discussion of medical waste incineration technology, North Environment,2001 [5] Duan Huabo, Qifei Huang, Qi Wang, etc.
Journal of Hazardous Materials, 2008, 158(2-3):221-227 [6] J.
Online since: September 2013
Authors: Qing Feng Cui, Han Ping Dong, Li Na Yi
Study on Enhancing Oil Recovery by Indigenous
Microorganisms in a Heavy Oil Reservoir
Qingfeng Cui1, a, Lina Yi 1,b and Hanping Dong 2,c
1 Institute of Porous Flow & Fluid Mechanics, CNPC & Chinese Academy of
Sciences, Langfang, China
2 Research Institute of Petroleum Exploitation and Development (Langfang),
China National Petroleum Corporation, Langfang, China
acuiqf69@petrochina.com.cn, b ilmwrb_cn@sina.com, cdhp@petrochina.com.cn
Keywords: Enhancing oil recovery, Indigenous microorganism, Heavy Oil
Abstract.
Materials and Methods Samples Samples of crude oil and water for microbiological investigations were collected from oil-producing wells of a heavy oil reservoir Xinjiang oilfield with a temperature of 21℃.
Clem: submitted to Journal of Materials Research (2003) [6] Nazina, T.
Materials and Methods Samples Samples of crude oil and water for microbiological investigations were collected from oil-producing wells of a heavy oil reservoir Xinjiang oilfield with a temperature of 21℃.
Clem: submitted to Journal of Materials Research (2003) [6] Nazina, T.
Online since: January 2015
Authors: Yan Ming Song, Yang Yang
Amorphous ribbon is a ferromagnetic material [4-5] that can be absorbed by MAF.
[2] Jun Sunakawa, Yoshio Bizen, Shunsuke Arakawa, “Methods for producing iron-based amorphous alloy ribbon and nanocrystalline material”.
[4] Yong Ik Jang, Jongryoul Kim, Dong Hyuk Shin, “Microstructures and magnetic properties of amorphous Fe–Si–B–Ni alloy ribbons,” Materials Science and Engineering, vol.
[9] Athanasios Chasalevrisa, Fadi Dohnalb, Ioannis Chatzisavvas, “Experimental detection of additional harmonics due to wear in journal bearings using excitation from a magnetic bearing,” Tribology International, vol. 71, 2014, pp.158–167
[2] Jun Sunakawa, Yoshio Bizen, Shunsuke Arakawa, “Methods for producing iron-based amorphous alloy ribbon and nanocrystalline material”.
[4] Yong Ik Jang, Jongryoul Kim, Dong Hyuk Shin, “Microstructures and magnetic properties of amorphous Fe–Si–B–Ni alloy ribbons,” Materials Science and Engineering, vol.
[9] Athanasios Chasalevrisa, Fadi Dohnalb, Ioannis Chatzisavvas, “Experimental detection of additional harmonics due to wear in journal bearings using excitation from a magnetic bearing,” Tribology International, vol. 71, 2014, pp.158–167