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Online since: January 2013
Authors: Jun Zhang
Factors such as agent concentration, pH, and curing temperature and time which affect the moisture management property were investigated by virtue of the wicking height and fast drying time, and then the optimum conditions of finishing were determined.
The other physico-mechanical properties of the fabrics finished under the optimum condition were also detected.
Results and Discussion Factors Affecting Wicking Height and Fast Drying Time.
Physico-mechanical properties.
Therefore, the moisture finishing not only meliorates the moisture management property of polyester fabric but also improves the physico-mechanical properties as well as the comfortable performance.
Online since: June 2011
Authors: Janusz Adamiec
The purpose of the work was to assess the impact of construction factors on weldability of MSRB alloy.
Structural factors affecting weldability of magnesium casting alloys include: cast construction solution, cast complexity degree, differences in wall thicknesses, casting stiffness, and notch presence.
Literature does not describe the impact of these factors determining weldability of magnesium alloys.
Thus, there is the need for determination of construction factors affecting the weldability of the MSRB alloy being used for large-size casts for the aircraft industry.
Table 1 presents the chemical composition and mechanical properties of the delivered pig sows of the MSR–B alloy.
Online since: March 2019
Authors: Guo Shan Xie, Luo Wei Cao, Min Zhen Zhao
In this paper, hot clamp induced cracking on Incoloy 800HT outlet pigtail tube of a reformer unit is studied by microscopic observation and mechanical properties testing.
Results indicated that the most important parameter affecting the high temperature brittleness of pigtails are the Ni/Cr value, surface grain size and impurity atoms grain boundary segregation.
Table 2 Results of tensile mechanical properties at room temperature Materials and standard No.
Weakening factors of grain boundary binding force.
Theses factors further aggravated the grain boundary embrittlement of the tube.
Online since: October 2010
Authors: Ping He Li, Ai Min Guo, De Hui Zou, Zhi Fang Peng
The Effect of intercritical quencing on microstructure and mechanical properties of ultra low carbon heavy steel plate were studied by utilizing SEM, TEM, tensile and impact tests.
They are the main factors influencing the transformation of austenite to martensite or bainite during cooling.
Results Mechanical properties.
Plots showing variations of mechanical properties of the steel plate with repeated quenching temperature.
Different degree of austenize can make the austenite transformate to different production attributing to the inhomogeneity of the carbon, chromium, molybdenum and manganese etc. content after quenched, and then affect the mechanical properties.
Online since: December 2012
Authors: Jian Ke, Bin Deng, Xiao Hui Shi, Peng Yi, Xi Hong Zou, Wen Li Li
The influence of electromagnetic coupling and mechanical coupling on control property in dynamic emulation system is analyzed. the coupled system is a dual-input dual-output system.The load torque changes will cause the variation of speed in the system and the speed changes also affect the variation of load torque.
From the equation(1) it can be concluded that cross-coupled voltage has an effect on speed and other factors.
(6) The transfer function G(s) is presented by: (7) Two separate equivalent control system can be given by the unit matrix method, and the transfer function of the control object is one.The unit matrix method for the asynchronous motor decoupling control schematic diagram is shown in Fig.2 Analysis of coupling characteristics of the mechanical system.The speed regulation and load variation greatly impact on the dynamic loading system. mechanical inertia and friction damping are also the influence factors, therefore mechanical coupling must be considered in the whole system.
The equation(8) and (9) show that the load torque changes will cause the variation of speed in the system, and the speed changes also affect the variation of load torque.
Mechanical Electrical Engineering Technology (In Chinese). 2011,40(1):69-71
Online since: October 2014
Authors: Junaidi Syarif, M.N. Mohammed, M.Z. Omar, K.S. Alhawari, Mohd Shukor Salleh
Microstructure Evolution and Mechanical Properties of Rheocast A319 Aluminum Alloy Using Cooling Slope M.S.
A319 aluminum alloy are increasingly used in the manufacture of engine parts due to a combination of good fluidity properties and mechanical strength [4].
This means, the hardness values increased by more than 4% in rheocasting process, hence improve the mechanical properties of the alloys.
Microporosity in solidified ingots will reduce the mechanical properties of the alloy.
The hardness of rheocast sample has attained 85.3 HV from 81.8 HV in as-cast sample; hence improve the mechanical properties of A319 aluminum alloys.
Online since: July 2014
Authors: Alena Vimmrová
New type of lightweight gypsum-based material Alena Vimmrová Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic vimmrova@fsv.cvut.cz Keywords: Light weight material, gypsum, aluminum powder, foaming, thermal properties, mechanical properties, water vapor transport properties.
Basic physical, mechanical, thermal and water vapor properties were investigated.
Experimental results and discussion The basic physical and mechanical properties of tested compositions are presented in Table 2.
Table 2: Basic physical and mechanical properties.  
Interlaboratory comparison of hygric properties of porous building materials.
Online since: January 2020
Authors: Anna V. Ryabova, Elena A. Yatsenko, Lyudmila V. Klimova
The factors that determine the quality of enameled products include the carbon content in the steel, its structure, the presence of impurities in it, as well as the mode of pre-heat treatment.
The content of silicon as a technological impurity usually does not exceed 0.37% and does not significantly affect the properties of steel.
These alloying elements by the mechanism of their influence on the properties of steels and alloys can be attributed to those that affect the polymorphic (α-Fe → β-Fe) transformation of iron.
Properties of steels
Analysis of the macrostructure of enamel coatings after firing also showed the presence of a gas phase in the enamel thickness, which can adversely affect certain technical and operational properties of protective coatings.
Online since: December 2013
Authors: H. Hehsan, Roslee Ahmad
The Effect of Vortex Well Thickness on Microstructure and Mechanical Properties of Aluminium LM6 H.
This research was conducted to determine the effects of vortex well thickness on the microstructure and mechanical properties of Aluminium LM6 in sand casting process.
Introduction The molten metal flow into mold during filling process and the cooling characteristics of the metal during solidification process is among the key factors in determining the quality of the casting product.
Therefore, this study have been conducted to determine the effects of vortex well thickness on the microstructure and mechanical properties of Aluminium alloy castings.
“Microstructure and mechanical properties of LM25 aluminium alloy in thin section casting using vortex gate”.
Online since: December 2009
Authors: Antonio D. Ludovico, N. Contuzzi, Sabina L. Campanelli
These properties depend, not only on composition and size of the used powder, but are strongly affected by process parameters and manufacturing strategy.
Factors for this model are discrete variables, therefore the ANOVA examines whether the variance of the factor is zero.
It is quite evident that both the two input factors P and v affect output factors; in fact the p-value is always lower than α.
This is due to the increasing of the density of built parts, that generates better mechanical properties.
properties of parts.
Showing 3521 to 3530 of 26166 items