Search results

GMAW process is continuously improved by selecting the best combination of welding materials and welding parameters to obtained welded joints with required properties.
Based on the experimental results obtained, regression models for different base materials thicknesses were developed.
Advanced Materials Research, 365 (2012), pp 44-49 doi: 10.4028/www.scientific.net/AMR.365.44; [2] Ferreira Jorge, J.C., Dias Monteiro, J.
A.: GMAW welding optimization using genetic algorithms, Journal of the Brazilian Society of Mechanical Sciences & Engineering, 2004, 26(1), pp.28-32, doi:10.1590/s1678-58782004000100005; [8] Cool T., Bhadeshia H.K.D.H., MacKay D.J.C.: The yield and ultimate tensile strength of steel welds.
Materials Science and Engineering A, 1997, 223(1-2), pp.186-200, doi:10.1016/s0921-5093(96)10513-x; [9] Montgomery D.C.: Design and Analysis of Experiments, New York, USA, John Wiley & Sons, 2001; [10] * * * EN ISO 15614-1:2017: Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys.

Experimental Materials and Testing Methods 2.1 Experimental materials The chemical compositions of base material and filler wire are shown in Table 1.
Journal of materials processing technology, 2013, 213(12):2145-2151
Journal of materials processing technology, 2016, 230:217-232
Journal of materials processing tech, 2008, 201(1):291-296
Applied physics a (materials science processing), 2007, 86(3):321-324

Fig. 5 The hoop ends tenon manufacture process Historic building material statistics and resilience statistics.
To the complex historic building's material statistics, the resilience statistics has provided without doubt a very good method, in very convenient extraction historic building component various part of geometry information, after like long, width, high, volume, surface area, the resilience statistics were naturally easier.
References [1] Yuesheng Zhou, Qianyu Liu, The Application of computer aided design parametric technology, Journal of Chongqing University (natural science edition). 28 (2005) 72-75
[2] Yue Chen, The Study of Chinese historic building parametric design, Journal of Liangshan University, 4(2002) 19-21
[3] Xudong Zeng, JieTan, Study on BIM Based on Intelligent Parametric Modeling Technology, Journal of Chongqing University (natural science edition). 29 (2006) 107-110.

In the first stage, use the inverse piezoelectric effect of piezoelectric materials to stimulate the elastic body to vibrate slightly in the ultrasonic frequency range.
Acknowledgments This work was partly supported by the Natural Science Foundation of Jiangsu Province Education Hall, P.
Science Press, Beijing. 2(5), 226-230 (2006) [3] Fu Rong Lei, Yu Cheng, and Yi Shang Zhong: Status of Modeling for Ultrasonic Motors (In Chinese) Piezoelectric & Acousto-optic. 3(7), 64-67 (2003) [4] Jin Bo Liu, Yong Xia Chen, Ji Zong Hu: An Investigation on Ultrasonic Motor Model and Its Experiment (In Chinese).
Blotter JD: Design of a Linear Ultrasonic Piezoelectric Motor Journal of Intelligent Material Systems and Structures. 6(4), 961-973 (2010) [7] Jie Zhang, Wen Shi Li: Rapid Design Method of Fly back Switching Converter (In Chinese).
Journal of the Korean Physical Society. 10(5), 882-885 (2010) [11] Xiao long Lu, Jun Hui Hu, and Chun Sheng Zhao: Analyses of the Temperature Field of Traveling-Wave Rotary Ultrasonic Motors.

Introduction With the appearance of high-strength materials in recent years, many PC bridges with small section sizes as well as large span were designed.
The material consumption of this kind of PC beam was decided due to normal service conditions.
References [1] Z.H Shi, D.X Hu, J.F Chen, et al: Building Science.
Vol.16 (2000) p4 (In Chinese) [2] X.Y Sun, C.K Huang: Journal of Hunan University (Natural Sciences Edition), Vol.33 (2006) p21 (In Chinese) [3] W.
E: Canadian Journal of Civil Engineering, Vol.6(1991) p995

At the same time the saline wastewater if not as the main device of raw materials, can lead to a secondary wastewater treatment problems.
Jin: Journal of Hefei University of Technology.
Zhao: SIESC Journal.
Pei: Environmental Science and Technology.
Chen: Journal of Engineering for Thermal Energy and Power.

Imatani, Compaction and sintering characteristics of composite metal powder, Journal of Material Processing Technology. 63 (1997) 364-369
Hanejko, High density processing of high performance ferrous materials, International Journal of Powder Metallurgy 31 (1999) 9-17
Rahman, The study of warm metal powder compaction, Journal of the Institute of Materials Malaysia 1 (2003) 161-174
Shahida, The effect of lubrication in reducing net friction in warm powder compaction process, Journal of Materials Processing Technology 207 (2008) 118-124
Ghambari, On the combined effect of lubrication and compaction temperature on properties of iron-based p/m parts, Materials Science and Engineering A 437 (2006) 360-365

Introduction Triaxial compound drive is shown interest at home and abroad for it`s large range of reducing interfacial tension and good outcome of increasing oil production.In applying triaxial compound drive,problems like scale formation in the oil production system and emulsified produced fluid caused by alkali are attracting focus from petroleum science and technology workers[1-2].Gemini surfactants are newly developed alkali-free surfactants.The technology is being positively researched and applied,for it has higher surface activity.It remains stable to product remaining oil and irreducible oil even in circumstances of high temperature and saltness[3].
The experiment part Experiment materials Tetradecyl dimethyl tertiary amine (industrialproducts) ; Epoxy chlorohydrin;Surfactant-LCS; N-propanol;Hydrochloric acid;Acetone;Ethyl acetate;NaOH;Distilled water.
Experimental Procedure (1)Tetradecyl dimethyl amine as raw materials in certain experimental conditions,synthesis ethane-1,2-2(14 alkyl dimethyl ammonium bromide);Hereinafter referred to as 14-2-14
Journal of daqing petroleum institute, 2009 (1) : 24—28.In Chinese
[2] LingGuang Qiu, MaoJie Cheng, AnJian Xie, YuHua Shen, Study on the viscosity of cationic gemini surfactant–nonionic polymer complex in water, Journal of Colloid and Interface Science 278 (2004) 40—43.

Its bending stiffness, length and cutting force are EIZ, l and F that is in its 0.5858l. its FEM model is as shown in Fig.2. based on materials mechanics and FEM, its finite element format is deduced and the deducing steps are follows: Fig.1 The slender shaft turned Fig.2 FEM model of the slender shaft turned supported by the top (1) Mesh elements It is divided into 2 elements, and the number of nodes is 4
Tab.1 Cutting force, material and geometry parameters of the slender shaft turned Mean value and standard deviation Cutting force F(N) Elastic modulus E(GPa) Length L(mm) Diameter D(mm) Mean value 20 200 130 10 Standard deviation 0.1 10 0.02 0.01 Analysis of probability sample finite element Based on probability sample finite element, with ANSYS PDS, the slender shaft turned was analyzed, Its parameters and corresponding symbols in anlysis are shown in Tab.2, and its parameters are attached to Gauss distribution.
Acknowledgements This work was financially supported by the Natural Science Foundation of Henan Province (2011C460002).
Chinese Journal of Mechanical Engineering, Vol 41 No. 2, (2005), p. 137～141 (in Chinese) [6] Guo Jinxing, Chen Yuquan, Li Zhenjia.
Journal of Harbin University Science and Technology, Vol 10 No. 1, (2005), p. 11～14 (in Chinese)

ZnO is a wide band gap semiconductor with a high excite binding energy at room temperature and has attracted much attention because of its potential applications in gas sensor, photocatalyst, solar cells, ultraviolet light emitting materials, field effect transistors and flat panel players [3].
As the most potential TCO materials, ZnO films have been prepared by various methods including electrochemical route, chemical vapor deposition, hydrothermal process and physical vapor deposition [4-7].
Journal Of Crystal Growth 2007, 298, 486
Applied Surface Science 2009, 255, 3959
Journal of Alloys and Compounds 2009, 477, 364