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Online since: September 2011
Authors: Chen Guo, Lian Fa Yang, Song Chao Shi
However, the deformation process is a tri-nonlinear physical process with large rotation/deformation and multi-factors coupling effects.
The stainless steel tube SS201 (1Cr13Mn9Ni1N) with the diameter D=320 mm and the thickness t0=0.38 mm is used in present work with the strain hardening law described by Swift’s equation as .The uniaxial tension test is used to obtain the mechanical properties shown in Table 1.
Wrinkle is a major factor affecting the bending quality.
Kyriakides: International Journal of Mechanical Sciences, Vol. 52 (2010) No.5, p.637
Wang: Journal of Mechanical Engineering, Vol. 45 (2009) No.8, p.255.
The stainless steel tube SS201 (1Cr13Mn9Ni1N) with the diameter D=320 mm and the thickness t0=0.38 mm is used in present work with the strain hardening law described by Swift’s equation as .The uniaxial tension test is used to obtain the mechanical properties shown in Table 1.
Wrinkle is a major factor affecting the bending quality.
Kyriakides: International Journal of Mechanical Sciences, Vol. 52 (2010) No.5, p.637
Wang: Journal of Mechanical Engineering, Vol. 45 (2009) No.8, p.255.
Online since: March 2015
Authors: Bo Zhang, Jing Qiu Wang, Xiao Lei Wang
The results show that the elastic modulus affects greatly on the load-carrying capacity.
Introduction Surface texturing inspired by the microstructure on natural surfaces, has been recognized as an efficient way to improve the tribological properties of mechanical components.
The result shows that the wetting property is an important factor in affecting the tribological properties of textured PDMS.
All results mentioned above show that the design principle of the textured soft materials is different from that of the stiff materials and the effect of surface texture is more complicated on the soft materials because more factors such as the deformation and wetting ability must be considered.
(11) Where, n is the number of grid nodes, pz is the actual load and ω is over-relaxation factor about h0.
Introduction Surface texturing inspired by the microstructure on natural surfaces, has been recognized as an efficient way to improve the tribological properties of mechanical components.
The result shows that the wetting property is an important factor in affecting the tribological properties of textured PDMS.
All results mentioned above show that the design principle of the textured soft materials is different from that of the stiff materials and the effect of surface texture is more complicated on the soft materials because more factors such as the deformation and wetting ability must be considered.
(11) Where, n is the number of grid nodes, pz is the actual load and ω is over-relaxation factor about h0.
Online since: October 2011
Authors: Peng Peng Huang, Hai Wen Liu
SPC is the method which applies the mathematical statistics to analyse the process of sample statistical data, and to determine whether the fluctuation in the production process is in an acceptable state, so that the whole process is only affected by the occasional factors in the stability of the controlled state, and the process performance is improved.
Key process improvements For the production log record was not perfect, this paper analyzes the factors that affect the moisture content of tobacco leaves in terms of 5M1E.It also controls the factors that may affect the moisture content of tobacco, and completes production logging.
Six factors for affecting the ability of the process 5M1E were investigated and analysed, a “seven practices for QC” Fishbone diagram for analysis was adopted, which is shown in Figure 2.
Improving the quality of feed grade of purity of the original tobacco and other indicators, ensuring consistency of the original tobacco physical-chemical properties
SPC control effect analysis After improving the analysis of the above factors, the data was collected and analysed as before, the results as shown in Figure 3.
Key process improvements For the production log record was not perfect, this paper analyzes the factors that affect the moisture content of tobacco leaves in terms of 5M1E.It also controls the factors that may affect the moisture content of tobacco, and completes production logging.
Six factors for affecting the ability of the process 5M1E were investigated and analysed, a “seven practices for QC” Fishbone diagram for analysis was adopted, which is shown in Figure 2.
Improving the quality of feed grade of purity of the original tobacco and other indicators, ensuring consistency of the original tobacco physical-chemical properties
SPC control effect analysis After improving the analysis of the above factors, the data was collected and analysed as before, the results as shown in Figure 3.
Online since: November 2011
Authors: V. Molokanov, Valentina Zhukova, A.N. Shalygin, P. Umnov, Arcady Zhukov
Studies of magnetic properties of amorphous microwires produced by combination of by quenching, glass removal and drawing techniques
V.
Ferromagnetic magnetic without glass coating with good magnetic and mechanical properties and GMI effect have been obtained.
On the other hand the demagnetizing factor affects the domain structure and magnetic properties when the geometric ratio of microwire diameter to its longitude becomes low enough [11].
DZ/Z (H) dependences of Co69Fe4Cr4Si12B11 amorphous microwires subjected to different processing measured at 10 MHz Resuming, aforementioned studies allow us to obtain ferromagnetic magnetic without glass coating with good magnetic and mechanical properties and GMI effect and to tailor the microwire magnetic properties for its application in magnetic sensors through the selection of adequate thermal treatment conditions.
Finally after adequate conditions of annealing good magnetic and mechanical properties and GMI effect have been obtained.
Ferromagnetic magnetic without glass coating with good magnetic and mechanical properties and GMI effect have been obtained.
On the other hand the demagnetizing factor affects the domain structure and magnetic properties when the geometric ratio of microwire diameter to its longitude becomes low enough [11].
DZ/Z (H) dependences of Co69Fe4Cr4Si12B11 amorphous microwires subjected to different processing measured at 10 MHz Resuming, aforementioned studies allow us to obtain ferromagnetic magnetic without glass coating with good magnetic and mechanical properties and GMI effect and to tailor the microwire magnetic properties for its application in magnetic sensors through the selection of adequate thermal treatment conditions.
Finally after adequate conditions of annealing good magnetic and mechanical properties and GMI effect have been obtained.
Online since: July 2021
Authors: Andrey V. Zhuravlev, Elena A. Chekalova
Structure and Properties of a Local Diffusion Discrete Coating Applied to High Speed Steel
E.A.
Investigations of metallographic and mechanical properties of local diffusion discrete oxide coating on high-speed steel Р6М5 have been carried out.
To increase the wear resistance of the coated tool, alloying elements are used as soft interlayers: Zr, Mo, Al, etc., which affect the structure and physical and mechanical properties of the coatings.
The aim of this work is to study the mechanical properties of a local diffusion discrete oxide coating on tool materials.
Discussion of the Results of the Study The determination of the mechanical properties of the developed coatings was carried out by kinetic indentation with the registration of indentation diagrams in the coordinates «load-indentation depth».
Investigations of metallographic and mechanical properties of local diffusion discrete oxide coating on high-speed steel Р6М5 have been carried out.
To increase the wear resistance of the coated tool, alloying elements are used as soft interlayers: Zr, Mo, Al, etc., which affect the structure and physical and mechanical properties of the coatings.
The aim of this work is to study the mechanical properties of a local diffusion discrete oxide coating on tool materials.
Discussion of the Results of the Study The determination of the mechanical properties of the developed coatings was carried out by kinetic indentation with the registration of indentation diagrams in the coordinates «load-indentation depth».
Online since: March 2006
Authors: Jae Ho Jung, Soon Jong Yoon, S.K. You, Y.H. Kim, Seung Sik Lee
In a
composite member, bond between steel and concrete is a crucial factor for the composite action.
Usually this bond behavior is achieved by installation of mechanical device so called shear connector.
On the other hand, the strength of shear connectors does not affect the stress resultants in the full composite section.
A total of 10 push-out test specimens is made, and the experimental result and properties of specimens are summarized in Table 1.
Based on the test results, the shape of shear connector is found to be an important factor that affecting the shear carrying capacity.
Usually this bond behavior is achieved by installation of mechanical device so called shear connector.
On the other hand, the strength of shear connectors does not affect the stress resultants in the full composite section.
A total of 10 push-out test specimens is made, and the experimental result and properties of specimens are summarized in Table 1.
Based on the test results, the shape of shear connector is found to be an important factor that affecting the shear carrying capacity.
Online since: July 2021
Authors: Supachart Muangyai, Parames Chutima
The one of importance inspection item considered to represent mechanical properties of products such as per cent graphite nodularity which has relative to tensile strength, impact strength and elongation [1,2].
It relates to the mechanical property included strength [5].
The selected factors and levels for DOE.
Effect of Graphite Nodularity on Mechanical Properties of Ductile Iron for Waterworks Fittings and Accessories, International Journal of Civil & Environmental Engineering IJCEE-IJENS, Vol.10, No.03
Mechanical properties improvement of metallic rolls by laser surface alloying.
It relates to the mechanical property included strength [5].
The selected factors and levels for DOE.
Effect of Graphite Nodularity on Mechanical Properties of Ductile Iron for Waterworks Fittings and Accessories, International Journal of Civil & Environmental Engineering IJCEE-IJENS, Vol.10, No.03
Mechanical properties improvement of metallic rolls by laser surface alloying.
Online since: September 2014
Authors: Chun Mei Liu, Zheng Yang Wang
Urban sewage treatment process and selection principles
Liu chunmei, Wang zhengyang
JiangSu Institute of Architectural Technology, Xuzhou, Jiangsu 221116, China
Keywords: city sewage treatment; selection principle; problems; Countermeasures
Abstract: With the rapid development of modern society and economy, environmental problems have become increasingly prominent, especially the city water environment worsening, exacerbating the shortage of water resources, affecting people's physical and mental health, which has become the serious restriction factor of sustainable development of the city.
Biological contact oxidation unit in the form of many, according to the state of the water can be divided into Split and DC-style, from the oxygen can be divided into aeration, mechanical aeration, sprinkler type and jet aeration.
Sewage treatment process selection 2.1 Sewage treatment process selection basis and principles Process to select technical and economic factors should be considered.
The infrastructure investment programs and the annual operating expenses at the standard rate of investment income, after taking into account compounding factors, converted into useful life of the end of each year equal reimbursement of costs - annual cost, in comparison to the economic desirability of the lowest cost solution.
Problems and countermeasures of urban sewage treatment development measures 3.1 Issues facing the development of urban sewage treatment Wastewater treatment technology behind our sewage treatment stage using technology compared with the same period the level of foreign technology is still very backward, there is always a low efficiency, high energy consumption, high maintenance, automation and low defects, thus affecting their sewage treatment plant competitive tender .
Biological contact oxidation unit in the form of many, according to the state of the water can be divided into Split and DC-style, from the oxygen can be divided into aeration, mechanical aeration, sprinkler type and jet aeration.
Sewage treatment process selection 2.1 Sewage treatment process selection basis and principles Process to select technical and economic factors should be considered.
The infrastructure investment programs and the annual operating expenses at the standard rate of investment income, after taking into account compounding factors, converted into useful life of the end of each year equal reimbursement of costs - annual cost, in comparison to the economic desirability of the lowest cost solution.
Problems and countermeasures of urban sewage treatment development measures 3.1 Issues facing the development of urban sewage treatment Wastewater treatment technology behind our sewage treatment stage using technology compared with the same period the level of foreign technology is still very backward, there is always a low efficiency, high energy consumption, high maintenance, automation and low defects, thus affecting their sewage treatment plant competitive tender .
Online since: October 2011
Authors: M.H. Kadivar, R. Moradifar, A. Rahi, F. Eslami, S. Salimi
Salimi3
1Department of mechanical engineering, Islamic Azad University Ahvaz Branch, Ahwaz, Iran
2Department of mechanical engineering, Shiraz University, Shiraz, Iran
3South Pars Gas Complex, Assaluyeh, Bushehr Province, Iran
E-mail: a roya.moradifar@gmail.com
Keywords: component; granular sulphur; storage silo; sieve analysis; friability; size distribution
Abstract:The purpose of this study was to investigate the effect of particle size distribution on the mechanical properties of granular sulphur and its relation to silo blockage at South Pars Gas Complex Phases 2 & 3.
GX™ granules generally have a high resistance to mechanical degradation.
The quality of the formed product depends on a variety of operational factors in the production step [6], the most important of which are the moisture content (which increases the percentage of minus 2 mm particles and the rate of seed generation), the speed of rotation of the GX™ granulator, and the cooling air flow rate.
There are no automatic control mechanisms that can mitigate or eliminate the human factor.
Conclusion and recommendations The critical continuum pressure which granules can tolerate depends on size distribution, which affects critical breakage energy and bulk modulus.
GX™ granules generally have a high resistance to mechanical degradation.
The quality of the formed product depends on a variety of operational factors in the production step [6], the most important of which are the moisture content (which increases the percentage of minus 2 mm particles and the rate of seed generation), the speed of rotation of the GX™ granulator, and the cooling air flow rate.
There are no automatic control mechanisms that can mitigate or eliminate the human factor.
Conclusion and recommendations The critical continuum pressure which granules can tolerate depends on size distribution, which affects critical breakage energy and bulk modulus.
Online since: April 2020
Authors: Indah Uswatun Hasanah, Suryana Suryana, Muhammad Fikri Fadhillah, Yordan Valentino Putra
All composites were characterized both microstructures analysis and mechanical properties include tensile strength and hardness.
Porosity affect the mechanical properties, ductility and the strength of the cast product decreases.
This must avoided from composite materials, because it reduces the mechanical properties of composites [7].
The effect of graphite and magnesium addition on ADC-12 matrix to the mechanical properties are studied.
Wildan, Suyitno, Effect of Stir Casting Parameter Factors on Porosity of Al-SiC Composites, ROTOR 7(1) (2014) 1-7, Information on https://jurnal.unej.ac.id/index.php/RTR/article).
Porosity affect the mechanical properties, ductility and the strength of the cast product decreases.
This must avoided from composite materials, because it reduces the mechanical properties of composites [7].
The effect of graphite and magnesium addition on ADC-12 matrix to the mechanical properties are studied.
Wildan, Suyitno, Effect of Stir Casting Parameter Factors on Porosity of Al-SiC Composites, ROTOR 7(1) (2014) 1-7, Information on https://jurnal.unej.ac.id/index.php/RTR/article).