Search results

Furthermore, it should also have good moisture resistance, mechanical strength, flame retardant, proof tracking and easy to process and other properties.
Electrical properties, thermal properties, mechanical properties, corrosion resistance and other properties of insulation material are closely related with its composition and structure, and is affected by temperature, humidity, mechanical vibration, pollution and many other factors.
Safety requirements and testing of insulating material parts There are many factors that affect the safety of the use of electrical accessories, the properties of the insulating material is the most critical component, therefore, the safety testing of the detection member of insulating material is very important.
Insulating material parts are also affected by temperature, humidity, and so on, causing aging, resulting in lower mechanical properties.
The following table gave IEC60884 standard as an example to illustrates the mechanical properties of electrical accessories products’ main test items.

The stress intensity factors as the function of crack length, time and relative density are calculated.
For cellular ceramic solids, the mechanical properties depend on physical prosperities, chemical properties and porosity etc.
(a) Non-demensional transient thermal stress intensity factors, (b) peak values of the thermal stress intensity factor ().
Vol. 29 (1994), p. 486 [3] M.F.Ashby: The Mechanical Properties of Cellular Solids, Metall.
Ashby: Cellular Solids, Structure and Properties (Pergamon Press, Oxford, U.K. 1988)

The mechanical properties of the alloy in two different structural conditions were examined at temperatures ranging from 77 to 293 K.
The aim of the present work was to evaluate the effect of UFG on mechanical properties at cryogenic temperatures.
Mechanical properties.
Extensive grain refinement affects mechanical behavior significantly.
Mechanical properties of aluminum alloy 1575C before and after ECAP.

Casing damage can be attributed to the formation factor, external factors, production, and construction considerations [3,4].
The interaction between the strata and the casing to the formation creep load transfer to the casing, resulting in the casing outer wall of the external load, this load is the main external factors causing casing damage, while the thermal coupling of steam generator is the main factors of production in the steam injection wells.
Thermal coupling between the casing and steam is one of the reasons that affect casing damage.
Then given to the casing thermal material properties.
Finite Element Analysis Of Casing Mechanical Property In Unconsolidated Sand Formation.

Experimental Study on Adsorption Capacity of Natural Gas Odorant Tetrahydrothiophene in Soil and Relevant Influencing Factors Xie Yushu1, a *, Dan Mo1, b, Song Bingxue1, c and Yao Wei1, d 1 Beijing Municipal Institute of Labour Protection, No.55 Taoranting Road, Xicheng District, Beijing P.
China axieyushubj@163.com, bdanmo2001@126.com, csnow801224@163.com, dyw777yw@163.com Keywords: tetrahydrothiophene, soil, adsorption capacity, influencing factors Abstract.
The impact of four parameters (namely gas leakage, water content, particle size and texture of the soil) on the adsorption properties of soil was then quantitatively analyzed.
Many factors affect the adsorption by soil organic matter, including physical and chemical properties of organic matter, soil water content, organic carbon content, specific surface area, pore size distribution, and external factors (such as soil temperature, salinity).
This may be because the mechanical structure of the soil was serious damaged in the process of grinding.

This paper presents factors affecting the bond strength between GFRP reinforcement and concrete.
Reduction factors are higher for external exposure conditions such as bridge decks, beams, and columns.
Freeze-thaw cycles could cause significant reduction of the mechanical properties and glass-transition temperatures of the FRP specimens immersed in an aqueous environment.
It cannot be assumed similar responses for steel and GFRP bars due to their different mechanical and physical properties.
Kaklauskas, Mechanical properties of the bond between GFRP reinforcing bars and concrete.

Study on the Online Detecting Technology for Partial Discharge of Power Equipment with Mechanical Properties Guojin Chen1, a, Ming Xu1, b, Tingting Liu1, c, Jing Ni1, d, Dong Xie2 and Yanping Zhang2 1School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China 2Hangzhou Kelin Electric Power Equipment Co., Ltd, Hangzhou, Zhejiang, 310011, China achenguojin@163.com, bxumzju@163.com, cliutingting817@163.com, dnijing2000@163.com Keywords: Online Detecting Technology, Partial Discharge, Electrical Power Equipment, Mechanical Properties, Acoustic Emission, Ultra High Frequency.
That improves greatly the mechanical and electrical properties of the transformer.
Introduction The partial discharge is the main cause of the insulation deterioration, is the important sign and manifestation of the insulation deterioration, and is also the important factor of the insulation failure for the power equipment.
So it affects the accuracy of the subsequent fault location.
That improves greatly the affect of the harmonics in the secondary side on the electricity grid in the primary side, and makes the no-load loss down by 50%, and the load loss down by 15%.

The Effect of Double Pass GMAW Process on Microstructure and Mechanical Properties of AA 6061-T6 Joining Plates S.R.S.
Rapid cooling of the first pass and moderate cooling rate for the second pass during weld metal solidification eventually resulted in significantly change the shape and size in the microstructure that had affected the hardness and mechanical properties.
Hence, this present research is aimed at studying and determining any changes in microstructure shape or size that relate to their mechanical properties.
Properties and selection, nonferrous alloy and pure metals.
Joining. 8, p. 269 – 281 [8] Othman, N.K., Bakar, S.R.S., Jalar,A., Syarif,J., Ahmad, M.Y., (2010), The Effect of Filler Metals on Mechanical Properties of 6 mm AA 6061-T6 Welded Joints Adv.

Mechanical properties of PPS nanocomposites were studied to evaluate the influence of the nanoparticles addition, as well as examined the relation between the tribological and mechanical behavior.
Filler behavior in the compound was affected by factors like the particle size distribution, surface area, shape and surface chemistry [8].
Test conditions: Sliding speed 1 m/s, contact pressure 0.65 MPa, and counterface roughness 0.1 μm Ra Mechanical Properties. 1) Impact Strength.
The improvement in mechanical properties can improve the wear resistance.
[10] Manasi Manoj Karkare, Choice of precursor not affecting the size of anatase TiO2 nanoparticles but affecting morphology under broader view, 2014

It is an index of the mechanical properties of steel and determines the quality of steel to a certain extent.
The influencing factors of tensile strength include steel processing parameters and chemical composition.
The mechanical properties, as an important part of the properties, greatly affected the quality of a steel product.
Therefore, many scholars and professionals had made many outstanding contributions to the study of the mechanical properties of steel.
Conclusion In this paper, twelve factors including process parameters and chemical composition parameters are taken as input variables and tensile mechanical properties of hot rolled steel as output variables. combines the neural network and quantile regression to construct the QR-GRBFNN model, which provides a relatively systematic model prediction method for the prediction of the tensile strength of iron and steel mechanics.