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Online since: March 2004
Authors: H.L. Yang, M.S. Liu, J. Shi, B.W. Ru
Through performing the systematic experiments and analyzing the removal mechanism of ceramic material, the factors that affect process surface quality of ceramics are researched.
Experiment of Technique Factors that Affect Process Surface Quality Experiment Related with Process Parameters.
It indicates that the factors that affect the force of lathing ceramics are relatively complex, and the more-in-depth research work is required.
Through performing the systematical technique experiment of machining, it is known that the technique factors that affect process surface quality of ceramics include cutting feed, cutting tool, and cutting force, etc.
Zhang: Mechanical Property of Ceramic Material (Science Press, China 1992)
Online since: August 2011
Authors: Qing Bin Yang, Xiao Yang
Introduction Many researchers pay attention to the mechanical property of the blended yarn.
The tensile property of different yarns is determined.
The pure cotton yarn, the pure SPF yarn and the blended yarn are of 18tex and 320 twist factor.
This results from the mechanical property of the fibers.
Although the fibers are blended and twisted with each other in forming the yarn, this does not affect or change the facts of the non-matching due to the difference of the mechanical property of the blended fibers.
Online since: January 2013
Authors: Ali Göksenli, Rasid Ahmed Yildiz, Be Hiye Yüksel, Faiz Muhaffel, Ali Aydeniz
Of Mechanical Engineering, 34668 Istanbul, Turkey 3TU Istanbul, Mechanical Metallurgical and Materials Eng.
Some ternary nickel based alloys are developed to further improve the properties of binary systems by adding a second to meet some special demands.
Codeposition of W element has been of considerable interest because of its unique properties, such as excellent corrosion-, wear-, electrical- and high temperature resistant [4].
But unfortunately up to date, only limited investigations have been conducted on the effects of heat treatment and nanocrystallined structure on corrosion properties of Ni-B-W coatings.
Combined effects from several factors result in the lowest corrosion resistance for the coating annealed at 400 0C.
Online since: February 2011
Authors: Jun Hong Li
A small number of buildings have caused the quality bias and the improper maintenance due to design and construction and other factors.
In order to make it work together with reinforced section, the structure mechanical properties are improved.
According to mechanical supporting structure properties, the anchor can be divided into rigid and flexible fulcrum pivot.
Through adjusting support, the wedge was not too tight wedge to prevent the corridor bottom, and affecting the concrete compression zone strength.
(In Chinese) [3] Yan Dong, “The simple analysis of steel reinforced concrete beam property”.
Online since: August 2016
Authors: Yan Feng
Holographic Storage Properties of Photochemical SiO2-Nanoparticles Material for Visualization News Features Yan Feng1, a 1Department of Media Technology and Communication, Northeast Dianli University, Jilin City, China ayanfeng001@126.com Keywords: Visualization news features; holographic storage; photochemical SiO2-nanoparticles material Abstract.
The excellent photochemical properties of photopolymer material have made them become the hot spot of current for visualization news holographic storage.
However, the shortcomings of common photopolymer materials such as exposure shrinkage and limited refractive index modulation affect the reading and writing properties of their holographic storage.
Faced with such a huge surge in the amount of information, reduced storage capacity of the device to increase the cost of data storage and processing speed has become the key factor driving this revolution.
However, the polymerization reaction is usually causes shrinkage of the material, which is one of photopolymer material intrinsic properties.
Online since: August 2012
Authors: S.L.G. Petroni, M.S.M. Paula, V.A.R. Henriques, C.A.A. Cairo
The effect of the factors and the interation between them upon the increase of interstitials was determined using a 33 factorial design with two replicates [11].
Factors and levels Factor Levels -1 0 1 2.4 Milling time (M) [h] 1 6 - 18 Sintering temperature (T) [ºC] 1000 1200 1400 - Holding time (H) [h] 1 3 5 - Results Table 2 shows the design matrix with the average results of the response variables O, N and C.
The significant factors were identified by the F test performed for a confidence interval of 95 %.
Other factors and interactions had negligible or no effects in the process.
During sintering at temperatures above 1000 ºC this oxygen is dissolved into solution thus affecting mechanical properties of the final parts (yield, strength, ductility, fatigue, hardness, etc.) [10].
Online since: December 2014
Authors: Jian Feng Ma, Ji Kun Feng, Qiang Li, Liang Sheng Wu
So the joint interface characteristics are the main factors that affect the overall performance.
The experimental method is also given with some results of the mechanical properties of oily porous media joint interface.
Porous metallurgy materials is a new kind of materials developed within the last ten years, it has the properties of structural materials and functional materials.
Fractal theory was used to derive stiffness properties of porous surfaces.
Journal of Mechanical Engineering Science, 1979(21): 25-32
Online since: October 2009
Authors: Mohammad Jaffar Hadianfard, M.A. Hadianfard
The results of the analysis show that brittle fracture has acted as a main factor for failure of the structure and stress concentration together with corrosion have provided minor sources for the failure.
All mechanical supports before and after the flange were proper and the pipe line before and after the flange was all right.
Figure 4- SEM photograph from fractured surface of the flange To evaluate properties of the material, dog bone type tensile specimens were cut through the undamaged areas of the flange.
Although reduction in thickness increased stress on the flange detail stress analysis show that even with lowest measured thickness (6.8 mm) at normal operational pressure and temperature at least safety factor of 1.7 was present on the flange.
[4] API 571 Damage Mechanisms Affecting Fixed Equipment in the Refining Industry, American Petroleum Institution, [5] T.
Online since: October 2011
Authors: Ji Xiong Jiang, Yong De Zhang
The traditional way of acquiring the formed archwire curve is based on manual operation, which will randomly bring numerous errors caused by human factors.
Introduction In human growth and development process, malocclusion is a common kind of mouth disease due to genetic and environmental factors.
Traditionally, formed archwire is bent by orthodontist or technician based on manual operation, which will randomly bring numerous errors caused by human factors [2].
But the springback properties of archwire which is a major factor to effect the experimental result was not considered.
Jiang: China Mechanical Engineering.
Online since: March 2011
Authors: Thomas Schneider, Marion Merklein
Regarding short process chains and improved mechanical properties conventional forming processes are often limited.
To fully understand material flow out of the sheet plane into the tooth cavity and to identify and qualify process factors depending on the functional elements´ geometry and friction, a single upsetting stage forming a simplified model of the blank is virtually analyzed with finite-element simulation.
Beside the special mould filling characteristics at different friction factors, the influence of friction in the upsetting process can also be observed by analyzing the forming force.
The investigations on different friction factors show an explicit influence on the mould filling behavior of the tooth’s cavity.
Varying the tooth shape affects strain hardening and contact stresses.
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