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Online since: September 2009
Authors: Li Na Si, Zhi Huang, Yun Huang, Yu Fu Wang
The Key Technologies of Belt Grinding of Glass Fiber Reinforced Plastic Composite Lina Si1,a , Yun Huang1,2,b , Zhi Huang1,2,c and Yufu Wang1,d 1 College of Mechanical Engineering, Chongqing University, Chongqing, P.R.
China, 400044 2 Chongqing Engineering Reserch Center for Material Surface Precision Machining and Whole Set Equipment,Chongqing University, Chongqing, P.R.
In theory, the key reasons for this phenomenon may be: ⑴ belt (material, size, binders); ⑵ round of contacts trough; ⑶ round of the hardness of contact.
Although the small amount of protrusion of the abrasive belt was shallow, however, due to more abrasive at the same time to participate in the work, a higher rate of removal of materials, and the better surface quality.
Huang: Modern Abrasive Belt Grinding and Engineering Applications (Chongqing University Publications, China 2008).
Online since: June 2013
Authors: Xin Zhong, Man Hong Jin, Jing Chen
Quality management research of all handset lithium battery engineering parts Man-Hong Jin1,a ,Jing Chen2,b, Xin Zhong3,c Logistics School Beijing Wuzi University Beijing, China bchenjingsushan@126.com,czhongxin20071102@163.com Key words: lithium ion battery, Quality control points; Quality management Abstract: with the advent of the era of 3 g, mobile phone has become a key factor restricting the development of mobile phone battery, lithium ion battery is still dominant used in mobile phone in the next four or five years.
In this paper,it has been analyzed that lithium ion battery parts, and does quality management of all engineering parts, mainly focus on the quality control of the Angle of the sealing plate, sealing body and the shell, at the same time deeply analyzes the different parts of the common categories .So this paper plays a guiding role in guaranteeing the whole project management of the quality of handset lithium battery.
Li+ are back and forth when charging and discharging, Li back and forth between are aligned .Namely when charging, Li+ changes from low energy materials to high-energy state through electrolyte migration from the positive to the negative terminal; when discharging Li+ are carried out naturally from negative of higher energy to the lower energy positive materials through the electrolyte, at the same time releases energy through external [5].
Currently, three components material of the liquid lithium ion battery that Ni, Co, Mn produces the high capacity battery 4.4 V, positive active material is Li (NiCoMn).
The common adverse categories of product engineering Fatal adverse Safety valve, leakage thickness of relief valve, shell cut; Serious adverse Size error of shell, sealing plate and sealing body, bad air tightness, sealing body deformation of sealing body and deviation, burr, compression, aluminum powder flake of each product, etc.; Slight adverse Play marks, scratches, depression, dirt, grease, watermark, damage to the bad appearance, etc Appearance quality control point of each engineering part in the production process The name of each part of the shell (As shown in Fig,1) The shell common injury: A mark, scratch ─ ─ the shell parts; Deformation ─ ─ open department; Sag ─ ─ positive, shell bottom; Shell cut/U word hurt ─ ─ shell parts; Burr ─ ─ openings.
Online since: August 2013
Authors: Bing Wang, Jie Rui, Guo Ming Li, Zong Ren Wang
A Discussion about Construction Techniques to Improve Durability of Concrete Bridges in Apline Regions JIE RUI1a GUOMING LI2b BING WANG3c ZONGREN WANG4d 1 2 3 4 Road &Bridge international CO.LTD,Beijing,100027, P.R.China a Email: 549600656@qq.com b Email: 591918753@qq.com c Email: 249256241@qq.com d Email: 27657570@qq.com Key words: alpine regions, durability, construction key technology Abstract: Based on the discussion of the quality control and management requirements for the concrete raw materials, the raw materials preservation heat in the mixing concrete process and the note in the process of transportation with the requirements both in concrete casting process and the casting vibrating process, the paper proposes the construction key technology of improving the durability of the concrete in alpine region. 1.
Concrete materials, reinforced, templates and Stockyard in contact with the concrete ground shall the temperature is too low.
The raw materials of concrete quality control and strict management requirements; 2.
Raw materials for thermal insulation in concrete mixing process heating, but should not be more than 60 ℃; 3.
Zhejiang University (Engineering Science), 2002, 36 (4): 371-80.
Online since: January 2012
Authors: Kang Xu, Si Yuan Wang, Xiao Yong Li, Li Jun Cao
Such four parts as the foundation engineering, the structural engineering, the decoration engineering and the roofing engineering are taken as the value object of study.
Collection Material Basic Data: This engineering project construction standard, project characteristic and so on.
Technical Data: This engineering project design document, construction organization plan, additional document by each kind of needed materials specification and quality technology target and so on.
Economic Data: Construction drawing budget, construction budget, cost plan and manpower and materials machine expense clear and so on, including: · Folk recipe and foundation engineering cost · Main body structural engineering cost · Costs and so on roofing waterproofing and heat insulation · Decoration repair project cost Functional Analysis and Appraises.
The structural engineering c.
Online since: October 2006
Authors: Thomas J. Webster, Batur Ercan
Better Tissue Engineering Materials Through the use of Nanotechnology Batur Ercan 1 and Thomas J.
Webster 1,2 1Division of Engineering and 2Orthopaedics Brown University Providence, RI 02912 USA E-mail: Batur_Ercan@Brown.edu; Thomas_Webster@Brown.edu Keywords: Tissue Engineering, Nanotechnology, Bionanotechnology Abstract.
Nanostructure science and technology create materials and products that potentially outperform, at several boundaries, existing materials [1].
Recent developments in modifying existing conventional materials to possess nanoscale features may increase new bone synthesis to offer exciting promising alternatives to bone tissue engineering.
Tissue Engineering (2001) 7: 291- 301
Online since: February 2014
Authors: Zhi Yang Li, Hong Jun Ni, Xiao Mei Wang, Yu Zhu, Ming Yu Huang
And reverse engineering’s key technologies were data acquisition, data processing and model reconstruction[4], as shown in Figure 1 was the reverse engineering to the physical ashtray product.
Fig.1 The reconstruction of physical product’s model 1.2 The experiment of materials and equipments Molding materials (ABS B601) and support materials (ABS S301) are two kinds of materials applied to rapid prototyping.
Preheat the rapid prototyping machine, wait for the temperature of forming chamber, molding materials and the support material reached to the machine acquiescent temperature (Molding chamber was 90℃, the molding material was 260℃, the support material was 240℃)
Conclusions It is likely still a key technique difficulty for product designers to achieve rapid product development based on reverse engineering, and a fair engineering solution will surely be significant in reduction of product development leading time and cost[9].
Constrained Fitting in Reverse Engineering [J].
Online since: June 2014
Authors: Xue Ling Du
Discuss about Stowing Material for Coal Mine Xueling DU1, a 1College of Resources & Safety Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China axuelingsiqing@sina.com Keywords: mining with stowing; backfilling; stowing material; cemented stowing; coal mine Abstract.
Stowing material is the key to realize the mentioned purposes.
Procedia Engineering,2011,26:1125-1143
Geotechnical & Geological Engineering, 1996, 14(2): 129-150
Coal Engineering, 2014, 46(1): 31-33.
Online since: September 2014
Authors: Hui Tao
Application of Prestressed Anchor Composite Soil Nail Wall in Deep Foundation Pit Engineering at Lanzhou Region Tao Hui Gansu Construction Vocational Technical College, Lanzhou Gansu China 730050 8903814@qq.com Keywords: prestressed anchor; soil nail; deep foundation pit; application; monitoring and analysis Abstract:The paper introduces the application of prestressed anchors and soil nails support system in complex soil layer deep foundation pit engineering at Lanzhou region based on the deep foundation pit engineering in Gansu Provincial Hospital of TCM as the background and discusses its key technology.
The experience of engineering is significance for similar engineerings at Lanzhou region. 1.
On the eastern of ground that is spacious can be used as piling up and processing materials.
[3] GB50330—2002 Technical code for building slope engineering[S].
Chinese Journal of Geotechnical Engineering, (2005), 26(8): p.939–943
Online since: May 2012
Authors: Qun Song, Zhi Lin Yang
An Engineering Example In Daliuta face in the Shen-dong mining area, average dip angle of seam is about, average thickness about, and bury depth.
The examples from engineering show that the research result is helpful to improve the accuracy of roof disaster predict and forecast.
Chinese Journal of Rock Mechanics and Engineering 2002; 21(8): 1174-1177 [in Chinese]
West -Chine exploration engineering 2006; 18(2); 95-97 [in Chinese]
Chinese Journal of Geotechnical Engineering 2007; 29(12): 1763-1766 [in Chinese]
Online since: January 2012
Authors: Peng Zhang, Zhao Lin Li, Xiao Wei Xue
Study on Integration Architecture of Product Design and Manufacturing Based on Knowledge Engineering Peng Zhang1,a, Xiaowei Xue 2,b, Zhaolin Li3,c 1Construction Institute, South West Petroleum University, Chengdu Sichuan 610500, China; 2School of Mechanical and Electronic Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China 3Low Permeability Reservoirs E&D National Engineering Laboratory, Xi’an Shanxi 710021, China; azp_swpi@sina.com, bxxw0322@163.com, cxiaozhao_08@163.com Keywords: Knowledge-Based Engineering, Product Lifecycle Management, J2EE Abstract.
Key Technologies in Knowledge Base.
China Mechanical Engineering, Vol. 15 (2005), p. 803-805 [7] Ammar-Khodja S, Perry N, Bernard A: Processing Knowledge to Support Knowledge Based Engineering Systems Specification.
Concurrent Engineering.
Vol.28(2006). p. 77-79 [10] Vander Laan AH: Knowledge Based Engineering Support for aircraft component design.
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