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Online since: February 2012
Authors: Jian Fang Xia, Yi Sheng Wang
Pellet thickness impacts the temperature gradient and the average reduction rate inside, and it is the major factor affecting pellet reduction process [1-5].
Therefore, the best vibration parameters are seeking to minimize the pellets’ damage and have a good dispersion.The vibration parameters have a significant effect on the performance of the vibrating feeder, so they are also key factors.
That is, (23) Fig .4 The relationship of the Optimal vibration angle and vibrating strength Considering the effects of pellets' properties and pellet thickness, we use a coefficientto calculate the practical velocity , so.
Vibration Mechanical Theory and Application.
Mechanical Industry Press(1982).
Therefore, the best vibration parameters are seeking to minimize the pellets’ damage and have a good dispersion.The vibration parameters have a significant effect on the performance of the vibrating feeder, so they are also key factors.
That is, (23) Fig .4 The relationship of the Optimal vibration angle and vibrating strength Considering the effects of pellets' properties and pellet thickness, we use a coefficientto calculate the practical velocity , so.
Vibration Mechanical Theory and Application.
Mechanical Industry Press(1982).
Online since: March 2008
Authors: Jean Marie Dubois, V. Fournée, Marie Geneviève Barthés-Labrousse
Those Properties of CMAs We Know Something About
V.
Emphasis is put on surface properties.
Very frequently, a distribution of occupancy factors must be considered on top of the atomic positions in order to describe the chemical disorder inherent to the compound.
Mechanical Properties The study of large unit cell CMAs and of quasicrystals under compression stress at high temperature demonstrates an atypical behavior.
However, their poor corrosion resistance above 550°C together with a strong decrease in their mechanical properties at high temperature, are major limiting factors in this type of application.
Emphasis is put on surface properties.
Very frequently, a distribution of occupancy factors must be considered on top of the atomic positions in order to describe the chemical disorder inherent to the compound.
Mechanical Properties The study of large unit cell CMAs and of quasicrystals under compression stress at high temperature demonstrates an atypical behavior.
However, their poor corrosion resistance above 550°C together with a strong decrease in their mechanical properties at high temperature, are major limiting factors in this type of application.
Online since: August 2013
Authors: Woo Keun Lee, Ji Hyeon Lee
In addition to being fire and chemical resistant, geopolymer possesses excellent mechanical properties.
It also possesses excellent mechanical properties, and fire and chemical resistance.
The compressive strength of geopolymers depends on a number of factors such as curing temperature/time, alkali concentration/type/pH, and silicate and aluminum ratio.
Influence of pH The most significant factor controlling compressive strength is pH.
The compressive strength of prepared geopolymer was affected by types of activator and pH.
It also possesses excellent mechanical properties, and fire and chemical resistance.
The compressive strength of geopolymers depends on a number of factors such as curing temperature/time, alkali concentration/type/pH, and silicate and aluminum ratio.
Influence of pH The most significant factor controlling compressive strength is pH.
The compressive strength of prepared geopolymer was affected by types of activator and pH.
Online since: June 2013
Authors: Hai Ting Lv
The accuracy of the theoretical prediction of the fatigue life is dependent on both the correct simulation of the stress-strain response, and also depends on the reasonable use of the damage model; the fatigue life is also related to a variety of factors such as load, temperature, surface roughness and residual stress.
The analysis of the fatigue life is determined by the load history based on the fatigue properties of the material, control structure, according to the analysis model to determine the fatigue life of the structure.
Conclusion The gear fatigue is a complex process, affected by a variety of factors, the ability can accurately predict the fatigue life of the gear, and you need to select the appropriate model.
Currently, the gear fatigue life problems and trends are as follows: Due to the fatigue problem involving many factors considered in the course of the study, only one or two kinds of main factors, simplified and model made larger, resulting in large deviation calculation results with the actual life.
As much as possible the impact of factors into how to gear fatigue life model, the problem of a long stage.
The analysis of the fatigue life is determined by the load history based on the fatigue properties of the material, control structure, according to the analysis model to determine the fatigue life of the structure.
Conclusion The gear fatigue is a complex process, affected by a variety of factors, the ability can accurately predict the fatigue life of the gear, and you need to select the appropriate model.
Currently, the gear fatigue life problems and trends are as follows: Due to the fatigue problem involving many factors considered in the course of the study, only one or two kinds of main factors, simplified and model made larger, resulting in large deviation calculation results with the actual life.
As much as possible the impact of factors into how to gear fatigue life model, the problem of a long stage.
Online since: August 2013
Authors: Muhamad Zaini Yunos, Zawati Harun, Muhamad Fikri Shohur, Hatijah Basri, Mohd Riduan Jamalludin
Introduction
Polysulfone (PSf) membrane has been widely used in fabrication ultrafiltration membrane due its low cost, superior film ability, good mechanical and anti-compaction properties and strong chemical and thermal stabilities [1].
The effect of this fouling mechanism on flux decrease depend of factors such as membrane pore size [2] , solute loading and size distribution [3].
Furthermore, the addition of additive into solution may contribute to the changeable properties of membrane in term of pore distribution, physical properties and mechanical characteristics [10].
According to previous studies, by using fumed silica as an additive, membrane conductivity and mechanical properties was improved [10].
Beside that it also offers a biodegradable properties and green technology to membrane separation process.
The effect of this fouling mechanism on flux decrease depend of factors such as membrane pore size [2] , solute loading and size distribution [3].
Furthermore, the addition of additive into solution may contribute to the changeable properties of membrane in term of pore distribution, physical properties and mechanical characteristics [10].
According to previous studies, by using fumed silica as an additive, membrane conductivity and mechanical properties was improved [10].
Beside that it also offers a biodegradable properties and green technology to membrane separation process.
Online since: April 2013
Authors: N. Boualem, A. Raid, M.A. Ghaffor, A. Tlemçani, M. Derrar
Cermets (carbide ceramic matrices in metal) WC-Co, WC-Co-Cr, WC-VC-Co and WC-Ni are commonly used as coating material on the substrate surfaces to impart appropriate tribological properties [6-8].
The XC-Co coatings adhesive properties are affected by changes in roughness and the results showed that the adhesion strength of thermally sprayed deposits increases significantly with the surface finish [10].
Preparation of test specimens In the present applications, we choose two materials commonly used in thermal spraying: 5086 aluminum alloy for lightness and the 304L stainless steel due to its high mechanical properties.
The particles chemical reaction with the surrounding gas and heat transfer with the substrate affects the deposit properties such as the porosity degree, impurities, residual stresses and metallurgical structure.
Factor, I.
The XC-Co coatings adhesive properties are affected by changes in roughness and the results showed that the adhesion strength of thermally sprayed deposits increases significantly with the surface finish [10].
Preparation of test specimens In the present applications, we choose two materials commonly used in thermal spraying: 5086 aluminum alloy for lightness and the 304L stainless steel due to its high mechanical properties.
The particles chemical reaction with the surrounding gas and heat transfer with the substrate affects the deposit properties such as the porosity degree, impurities, residual stresses and metallurgical structure.
Factor, I.
Online since: December 2013
Authors: Rostislav Drochytka, Bozena Vacenovska, Tomas Bina
Without the exact identification of the hazardous waste properties – determining the chemical mineralogical composition, identifying hazardous properties, physical – chemical and physical – mechanical properties – it is not possible to use the waste in a safe manner or to find the optimal use of the physical solidification product.
Such selected recipes reported the highest efficiency during the fixation of pollutants in the matrix of modified wastes and good physical – mechanical properties.
The verified properties of the solidification products also included an unconfined compression strength test which characterizes the stability and resistance of the solidification products to mechanical damage.
It implies from the results of the compression strength and resistance to freezing and water that the samples reported good physical mechanical properties for use in the active zone for roads.
Chaudhary, Factors affecting hazardous waste solidification/stabilization: A review, Journal of Hazardous Materials 137 (2006), pp.267-276
Such selected recipes reported the highest efficiency during the fixation of pollutants in the matrix of modified wastes and good physical – mechanical properties.
The verified properties of the solidification products also included an unconfined compression strength test which characterizes the stability and resistance of the solidification products to mechanical damage.
It implies from the results of the compression strength and resistance to freezing and water that the samples reported good physical mechanical properties for use in the active zone for roads.
Chaudhary, Factors affecting hazardous waste solidification/stabilization: A review, Journal of Hazardous Materials 137 (2006), pp.267-276
Online since: March 2006
Authors: Jang Gyu Lee, Tae Sam Kang, Woon Tahk Sung, Seong Hyok Kim
The proposed structure is designed to have good
properties such as heavy proof mass, a large movement and high moving velocity of the proof mass at
an operating frequency.
It has various desirable properties such as low power consumption, rigidity, and cheap fabrication by mass-producing process [1-6].
The resonant frequency is an important factor of the operation of the gyroscope.
But the case of feedback controlled system, such a change is not so an influencing factor.
From the figure, controlled system is hardly influenced by the frequency deviation of two modes, whereas the system without control is greatly affected.
It has various desirable properties such as low power consumption, rigidity, and cheap fabrication by mass-producing process [1-6].
The resonant frequency is an important factor of the operation of the gyroscope.
But the case of feedback controlled system, such a change is not so an influencing factor.
From the figure, controlled system is hardly influenced by the frequency deviation of two modes, whereas the system without control is greatly affected.
Online since: November 2012
Authors: Pouria Kavandi, Maryam Mohammadi, Seyed Sina Khamesi
Granular material properties and dimensions of the geometry[10]
1680 [kg/m3]
Density
50 [µm]
Cement particles diameter
1 [m]
Kiln length
10 [cm]
Kiln diameter
5 [cm]
Dam height
Step shaped dam
Triangle shaped dam
Figure 3.a.
The results of this research are based on all of the properties of 1 two-phase flow such as: viscosity effect, particle diameter, kiln rotational velocity and kiln slope.
The flow is affected by these parameters: kiln slope, kiln rotational velocity and dams which contract the flow path.
Increasing slope or rotational velocity will affect the high of bed considerably.
Saeman: Passage of solids through rotary kilns: factors affecting time of passage, Chem.
The results of this research are based on all of the properties of 1 two-phase flow such as: viscosity effect, particle diameter, kiln rotational velocity and kiln slope.
The flow is affected by these parameters: kiln slope, kiln rotational velocity and dams which contract the flow path.
Increasing slope or rotational velocity will affect the high of bed considerably.
Saeman: Passage of solids through rotary kilns: factors affecting time of passage, Chem.
Online since: July 2022
Authors: Dermot Brabazon, Inam Ul Ahad, Muhannad Ahmed Obeidi
The variation in the mechanical, chemical, and physical properties of AM parts are not shortened only in parts produced on different machines but also can be obtained across parts produced by using the same 3D printer and maybe in the same singular part itself when comparing these properties along the build direction.
Some applications may include aerospace industry require consistent mechanical and physical properties, i.e., the surface profile is important for aerodynamic and drag forces performance.
The achieved melt-pool temperature is based on these factors and many other parameters like the metal type, absorption of the laser irradiation, the laser type and wavelength.
This temperature variation can negatively affect the produced part properties and imposes the need for post processing.
Effect of heat treatment on microstructure and mechanical properties of 316L steel synthesized by selective laser melting.
Some applications may include aerospace industry require consistent mechanical and physical properties, i.e., the surface profile is important for aerodynamic and drag forces performance.
The achieved melt-pool temperature is based on these factors and many other parameters like the metal type, absorption of the laser irradiation, the laser type and wavelength.
This temperature variation can negatively affect the produced part properties and imposes the need for post processing.
Effect of heat treatment on microstructure and mechanical properties of 316L steel synthesized by selective laser melting.