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Online since: June 2014
Authors: Hai Fang Wang
The aim of coiling temperature control is to make hot rolled strip from high finishing roll temperature to requested coiling temperature, which makes strip obtain satisfactory microstructure performance and mechanical property [1,2].
The cooling capacity of each set of cooling pipes is same, the cooling conditions of up and down plate is same, the affect of phase changes heat on the plate coiling temperature is neglected, and its related heat conduction and radiation among the roll is neglected too.
(6) Self-learning model For improving the control accuracy, a self-learning factor A0 is joined into the model, and the self-learning model is built as following
(8) Where N' is the measured value, β is a correction factor, 0 <β<1,and it takes 0.3 to 0.7 generally.
Online since: May 2004
Authors: B. Jokanović, Tanja Damjanović, Günter Borchardt, Roland Weiss
INTRODUCTION Due to their remarkable mechanical strength under high thermal loads and their thermal shock resistance in combination with low specific mass, reinforced ceramic composites like C/C, C/SiC are suitable materials for potential applications at high temperatures in oxidizing environments as for high temperature heat exchangers, shuttle orbiter vessels, components of jet engines and gas turbine engines, etc. [1-3].
EPD cell for flat samples (dimensions in mm) Because of the small difference in specific resistances of the deposited layer (DL) and the suspension (SUSP), the cell current intensity will not be affected by the growing deposit as long as the following condition is satisfied: DL SUSP SUSP DL RR L L >>�< 
2 10 Eq. 8 This occurs because of the large liquid fraction in a deposited layer with much higher conductance causing that the current mostly flows through it.
Due to these factors the modeled current was much higher than the measured one (124.8NA comparing to 86.1NA, with an applied voltage of 5 V).
CONCLUSION The most important property of the system for EPD is the current density and its relation with the potential.
Online since: June 2014
Authors: Yun Huang, Gui Jian Xiao, Yu Hang Yang, Hao Yi
No evidence of thermally affected layers was found on the final polished workpiece surfaces.
Despite the report on the surface integrity of ti-6-4 heat-resistant alloy for the critical aero-engine components, no information has been reported on the properties (e.g. surface texture, sureface raughness) of the workpiece surface obtained after belt grinding/polishing especially to the GH4169 Nickel-based Superalloy.
These properties are of paramount importance for the acceptance of belt grinding as a final grinding process by the aero-engine manufacturers.
Table 2 Orthogonal test table Factor Level 1 2 3 Grinding speed(m/s) 18 26 34 Contact pressure(N) 30 60 90 Oscillation frequency(Hz) 0 2 1 The electronic scale is used for measuring the workpiece quality, its measurement accuracy is 0.1g; the stopwatch is used for recording the time of grinding; the roughness instrument TR200 is used for determination of surface roughness Ra by stylus method, which manufactured in Beijing times group.
Huang, et al: Mechanical Science and Technology for Aerospace Engineerding, 30(2011)92-97 [6] D.A.
Online since: December 2015
Authors: V.C. Anye, B. Agyei-Tuffour, J. Asare, G.M. Zebaze-Kana, D.Y. Momodu, W.O. Soboyejo, O.K. Oyewole
Effects of Deformation on Failure Mechanisms and Optical Properties of Flexible Organic Solar Cell Structures J.
There is also a need to develop a basic understanding of how deformation and failure mechanisms affect optical and electrical properties of materials and layered structured that are relevant to organic solar cells.
Table 1: Material properties 2.
Hoffman, “The mechanical properties of thin condensed films,” Phys. thin Film., vol. 3, pp. 211–273, 1966
Soboyejo, Mechanical Properties of Engineered Materials.
Online since: December 2022
Authors: Biola Mathew Biodun, O. Joshua Okeniyi, Ojo Sunday Isaac Fayomi
The following fuel properties were determined for each sample as recommended by the American Society for Testing and Materials [ASTM], reported in [10] and [11].
The data was gathered and organized into a table for calculating various factors such as braking power, specific fuel consumption, and brake thermal efficiency. 3.
BTE is affected by differences in calorific value, according to [12]–[14].
The components of D-NA, a blend of ethanol and nanoparticles of silicon dioxide derived from coconut waste, affected the SFC engine.
Hassan, ‘Physical properties of coconut shell nanoparticles’, 2016
Online since: July 2013
Authors: Guo Feng Wang, Lian Zhen Song, Zhi Li Wei, Xue Wu Wang
Mechanical shearing resistance of polymers During actual injection, polymers need to undergo high speed shearing in pumps, valves, pipelines and near borehole zones.
Permeability is one of the most sensitive factors affecting the oil displacement efficiency
J. (2008) Analysis on injectivity and displacement property of polymer solution in low-middle layers of Daqing oil field.
Online since: November 2013
Authors: Ming Yang, Yang Bai
On the other hand, vibration-assisted machining combines metal forming and small amplitude tools vibration to get lower forming load or better products property.
The chemical composition and mechanical property is listed in Table 1 and Table 2.
Mechanical properties of C5191.
RCA is an important factor that cannot be ignored in metal surface deformation.
In this study, due to the existence of vibration, the deformation of metal foil may be affected by vibration frequency.
Online since: February 2014
Authors: Rui Jia, Fu Zhong Wang
Dynamic recrystallization It is important to determine the microstructure evolution during industrial hot rolling, which can predict the mechanical properties of the hot-rolled products, design the most effective hot rolling process to obtain the customer requirement, reduce the costs for routine operations and develop new products[12].Recrystallization is a process of fundamental importance in the thermo-mechanical processing of metals and alloys, which can result in grain refinement, reduce deformation resistance and directly affect the microstructures of the final product[13].
As a result, some mechanical properties, such as strength and impact transition temperature, can be improved.
Hence, it is necessary to understand such knowledge for prediction of mechanical properties and gauge control.Parameters εc express that dynamic recrystallization occurred critical deformation, it is a relationship between the value of the stress - strain curve εp that εc≈0.83εp.This test is the first under the stress - strain curve to determine εp, then find εc.
Mechanical Engineering[J], 2008.54 PP :219-224 Ning Yong-quan; Yao Ze-kun; Li Hui; Guo Hongzhen ;et al.
Mechanical Engineering[J], 2008.54 PP :219-224 [15] Ning Yong-quan; Yao Ze-kun; Li Hui; Guo Hongzhen ;et al.
Online since: September 2013
Authors: Chang Liu, Shu Ying Zhao, Jing Chao Zhang, Yan Liu
Detection focuses on mechanical and electrical parameters.
The wavelength of light is from 320 to 680nm with good insulation properties.
We also found that this technology has no adverse effects of factors on crops. 5.2 Less damage to natural enemies The most urgent problem for the technology of Using Light to Trap is the damage to natural enemies.
According to the Chinese Food Native Produce Import and Export Chamber of Commerce report, in 2009 due to the factors of pesticide residues the scented tea export volume is reduced by 16%.
It will seriously affect the insecticidal effect.
Online since: September 2013
Authors: Yan Jun Liu, Yong Chao Zheng
Mechanical test demonstrates that compressive strength at 28 days is over 70Mpa.
Raw meal proportion with lime saturation factor (LSF) of 0.76, Silicate modulus (SR) of 4.63 and Aluminate Modulus (AR) of 1.01 is shown in Table 2.
Finally, the mechanical properties of cement, using 4cm´4cm´16cm mortar specimens with water to cement ratio of 0.5, were examined at age of 3 days, 7 days and 28 days respectively.
Figure 7 shows that the clinker, with many voids, is characterized with dominating belite phase, unidentifiable alite phase and minor other phases. 4.5 Physical and Mechanical Properties of Active Belite Cement Physical properties, such as setting time, flowability and water demand of active belite cement, were evaluated in accordance with Chinese Standards.
Six active belite cement clinkers sintered at various temperatures has a lime saturation factor of 0.76, silicate modulus of 4.63, and aluminate modulus of 1.01.
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