Search results

Analyze and Improvement of Production Site Based on IE Yunrui Wanga School of Mechanical Engineering, Xi’ an University of Science and Technology, Xi’an 710054, China a2002wyr@sina.com Keywords: Production line, facility planning, product beat, personnel saturation.
The whole punching get parts with 80t punch on aluminum material after the knife mould stamping, three incisions punching require for work punching port groove and rail slot after the whole punching, reaming need drill and ream for positioning hole, using grinding machine polish cross-section when burring, roll bending demand complete a two-dimensional curved using self-developed roll bending equipment, with curved roof assembly; finally piece will be fixed corresponding check tool for inspecting its surface, curvature of the line, positioning hole etc. compare with test book using plug gage, dial indicator.
While the mould frame has been moved nearby 80t punch machine, U-shaped layout of production line equipment is too tight and has too many staff before improvement, particularly grinding process in drilling and reaming operations, these could result in poor circulation in progress; at the same time, the feed direction facing away from main stream channel which resulting unnecessary material flow.
To solve above problems, cut staff and the merger process by ECRS are used, the feed inlet of production equipment face the main stream channel, remove excess grinding turnover frame; set raw material area in feeding area for safety inventory of material and decrease lead time of production.
[8] L.N.Hou, H.Y.Wang and W.W.Jia: Industrial Engineering Journal,Vol. 14(2011) No.4, p.124-128.

Introduction Nickel-based alloys are widely applicated for aerospace, energy generation and corrosion protection, especially in the environment where the facilities or materials are exposed to high temperature, oxidization, acid and other complex circumstance [1-6].
Advanced Materials Research Vols. 535-537 (2012) 973-976 [10] Wei C.
Wang, Journal of Tianjin University of Science & Technology 22 (2007) 40- 43

Dahlquist and al, "A 2.8kV, forward drop JBS diode with low leakage," Materials Science Forum, vol. 338-3, pp. 1179-1182, 2000
Berthou and al., “Study of 4H-SiC JBS Diodes Fabricated with Tungsten Schottky Barrier", Journal of Electronic Materials, dec. 2011, Vol. 40, issue 12, pp. 2255-2362

Innovative Design of the Portable Manually-steered Folding Bicycle Hongwei Niu1, a, Yanchao Yin2,b ,Jiashu Zhao3,c,Xingpai Chen4,d 11 Kunming University of Science & Technology, Kunming 650500, China a791077634@qq.com, b1294006473@qq.com, c935779206@qq.com,d2879188653@qq.com Keywords: bicycle; innovative design; portable manually-steered; reliable folding mechanism.
The main material of bicycle is aluminium alloy.
The relationship for plastic material between allowable compression stress and shear stress is:.Generally the allow able compression stress for aluminum alloy is: and we can get: .
Journal of Engineering Graphics, 2005, 26(3): 106-119, in Chinese
[6] H.W.Liu:Mechanics of Materials[M].

(2) where , is the elastic modulus of PZT actuator, is the elasticity modulus of the metal substrate, and are the Poisson's Ratio of the piezoelectric material and the metal substrate, is the Thickness Ratio, and are the thickness of the piezoelectric material and the metal substrate, R is the radius of the PZT actuator, are the piezoelectric constant, U is driving voltage.
Acknowledgments This work was supported by the National Natural Science Foundation of China (Grant No. 51377147, 51205366), the Zhejiang Provincial Xinmiao Project (2013R404035).
A plastic micropump constructed with conventional techniques and materials.
Journal of Agricultural Machinery, 2003, 34(5); 84~87 (in Chinese) [10] Junwu Kan， Zhigang Yang, Taijiang Peng， et al.

Study of Fe(II) Biosorption using Pleurotus Spent Mushroom Compost in a Fixed-Bed Column Ain Nihla Kamarudzaman1, 2,a, Tay Chia Chay3,b, Amnorzahira Amir1,c and Suhaimi Abdul Talib1,d 1 Institute for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia 2School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, 02600 Arau, Perlis, Malaysia 3Faculty of Applied Sciences, Universiti Teknologi MARA, 02600 Arau, Perlis, Malaysia aainnihla@unimap.edu.my, btaychiay@gmail.com, camnorzahira@salam.uitm.edu.my decsuhaimi@salam.uitm.edu.my Keywords: Biosorption, Fe(II) removal, Pleurotus spent mushroom compost, Breakthrough time, exhaustion time Abstract.
Materials and Methods Preparation of Biosorbent.
These results are similar to those found by other researchers for biosorption of different heavy metals and using different biosorbent materials [14, 15].
Journal of Chemical Technology and Biotechnology, 78 (2003), p. 743–752

.: The metallurgy of zinc-coated steel, Progress in Materials Science. 45 (2000), pp. 191–271
Journal of Materials Processing Technology, 2010, 210: 2130-2118

Introduction KDP (Potassium Dihydrogen Phosphate is shorted for: KH2PO4 or KDP) crystal is a kind of good non-liner optical material developed from 1940s, it is widely used in the high-technology field of laser conversion, electro-optical modulation and optical high-speed switch.
The Theoretical Analysis of the Effect of Rake Angle on the Surface Quality of Crystal KDP There are two ways of chip forming for the brittle materials: one is forming continuous banding chip by shearing-slipping plastic yield; the other is forming un-continuous chip by brittle fracture.
In the process of ultra-precision milling of the crystal KDP, the workpiece surface is removed by shearing-slipping or brittle fracture depending on the variation of the inner stress of the material.
Acknowledgements The author gratefully acknowledge the National Natural Science Fund of China for their Support of this work: The contact number is 50405011.
[2] Namba Yoshiharu, Katagiri Masanori and Nakatsuka Masahiro: Journal of the Japan Society Precision Engineering, Vol.64 (1998) No.10, pp.1487- 1491

Although the two parts are interrelated, there are optimization requirements applicable to each other, but because of the failure of the main form of V-belt is slipping and fatigue two, the work of the tight side tension stress δi, centrifugal tension δc and tight around the edges small pulley caused the maximum bending stress δb, and with the periodic cycle of alternating stress are related to the diameter of the pulley, so the V-belt transmission design are generally based on work requirements and conditions of the first engineering design of V-belt, and then to transmission ratio, based on the principles of design in accordance with optimal diameter pulley, the pulley in addition to considering the design fits in with the V-belt, but also involves a wide range of issues, both from the weight, strength, and V-belt friction coefficient, etc. consider choosing the right material, but also consider the appropriate structure, process and precision; such as the use of cast iron casting material
V pulley system of multi-objective optimization The V pulley system design must consider the factors and principles are ① the first transmission ratio to meet the requirements. ② to meet with the V-belt with the most optimized, including the maximum possible friction factor, V with a maximum working stress at work as a minimum to ensure that no failure, and so on. ③ to minimize the weight of the pulley. ④ should be installed in all the host of the main pulley above the total moment of inertia as small, to reduce the moment of inertia, reducing the vibration of the host. ⑤ to meet the strength requirements of the premise of lower prices of materials used, while the size of the pulley as much as possible, consistent structure to reduce manufacturing costs.
Civil Engineering Journal 07 .2006 [2]Qincaixiao Shibinhua Jiongquancai Matlab-based V-belt transmission multi-objective optimization [J].
Three Gorges University (Natural Science), 2011.03 [3]Guo Rensheng.V-belt drive multi-objective optimization[M].Beijing: Mechanical Industry Press,2010-05 [4] Rick Antang seasonal.

Heidimiao reservoir forming in period of third Member to forth Member of Nenjiang Group, under the control of the northern material sources, is of the river-delta depositional systems which formed in the gradual uplift basin-shrinking tectonic settings and the proximal small water systems tectonic settings.
Studis on macrofacies impact: (1) At the time of the bottom of Heidimiao Reservoir depositing, base levels was relatively high, accommodation was relatively large and material supply from the Southeast was relatively strong.
(2) At the time of the middle of Heidimiao Reservoir depositing, base levels fell, accommodation decreased and material supply was not strong.
(3) At the time of the top of Heidimiao Reservoir depositing, base levels was relatively low and near to the shore, and the range of material supply became lager.
Journal of Chengdu university of technology(Science&Technology Edition), 33(6):593-597