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Online since: January 2013
Authors: Qing Jie Liu, Sheng Ju Zang, Qiu Bo Huang
This article takes lwb350 horizontal spiral sedimentation centrifuge for example, with the help of FLUENT software, the relationship among the separation efficiency and the working speed as well as feed flow is analyzed through the numerical simulation of solid-liquid separation, which can provide reference for the application of simulation analysis and research on properties of spiral centrifuge.
The numerical simulation and analysis of separation characteristics of lwb350 type horizontal spiral sedimentation centrifuge Variable factors affecting the separation efficiency.
For horizontal spiral sedimentation centrifuge, variable factors affecting the separation efficiency are the adjusted operating parameters according to the actual working condition, which include separation factor and flow and so on.
Therefore, taking all factors into account, the reasonable condition speed of lwb350 horizontal spiral discharge sedimentation centrifuge is 2600 r/min.
References [1] Qicai Sun, Dingwu Jin: Centrifuge principle structure and design calculation[M] .Mechanical Industry Press,1987, p.338.
The numerical simulation and analysis of separation characteristics of lwb350 type horizontal spiral sedimentation centrifuge Variable factors affecting the separation efficiency.
For horizontal spiral sedimentation centrifuge, variable factors affecting the separation efficiency are the adjusted operating parameters according to the actual working condition, which include separation factor and flow and so on.
Therefore, taking all factors into account, the reasonable condition speed of lwb350 horizontal spiral discharge sedimentation centrifuge is 2600 r/min.
References [1] Qicai Sun, Dingwu Jin: Centrifuge principle structure and design calculation[M] .Mechanical Industry Press,1987, p.338.
Online since: August 2013
Authors: Yu Jian Du, Xin Sui, Bo Xiong Zhao
Figure 2 shows YBCO thin film of c- axis on LAO substrate,and its Temperature of growth is 800℃,The surface of the film is dense ,and it’s hard to find square hole and slot ,thus ,the passage of current is easier ,he superconducting thin film will be up to the critical current density requirements .It follows that the surface morphology of the films in the film growth is often our most basic information concerned ,Often affect the device fabrication process ,and even affect the physical properties of the material itself ,thus ,the research for the effect of surface morphology of thin films on their properties is significant.
In addition, according to the different crystal type, crystal film morphology is also differ in thousands of ways ,the influence factors is also perplexing and contacted.
Factors that affect the film morphology The optimality of crystal face :In the process of crystal growth ,the growth velocity of different crystal face is different, growth velocity can be divided into two :growth velocity of transverse direction and growth velocity of normal direction ,and they are mutually related to each other and mutually restrict each other,they both are decisive factors of the film morphology.
The different crystal face has crystal surface energy ,surface energy differences will lead to differences in the growth rate of each crystal face, thereby affecting the optimality of growth.
Science and Technology . 2005 [6] H.Wang,S.R.Foltyn,P.N.Arendt,et al.Thickness effects of SrTiO3 buffer layers on superconducting properties of YBa2Cu3O7-δ coated conductors.
In addition, according to the different crystal type, crystal film morphology is also differ in thousands of ways ,the influence factors is also perplexing and contacted.
Factors that affect the film morphology The optimality of crystal face :In the process of crystal growth ,the growth velocity of different crystal face is different, growth velocity can be divided into two :growth velocity of transverse direction and growth velocity of normal direction ,and they are mutually related to each other and mutually restrict each other,they both are decisive factors of the film morphology.
The different crystal face has crystal surface energy ,surface energy differences will lead to differences in the growth rate of each crystal face, thereby affecting the optimality of growth.
Science and Technology . 2005 [6] H.Wang,S.R.Foltyn,P.N.Arendt,et al.Thickness effects of SrTiO3 buffer layers on superconducting properties of YBa2Cu3O7-δ coated conductors.
Online since: May 2014
Authors: Ali H. Ammouri, Ali H. Kheireddine, Ramsey Hamade
In combination with temperature, strain rates directly affect the material microstructure and, hence, the mechanical properties of processed material [5].
Such condensed finding model can be readily used in control frameworks architectures to fabricate AZ31B sheets with predefined mechanical properties.
The two main factors that directly affect the simulation time and the result’s conversion for any FEM simulation are the mesh size and time step.
This numerical model can be readily used in future control frameworks architectures to fabricate AZ31B sheets with predefined mechanical properties.
Prisco., Friction stir welding of lap joints: Influence of process parameters on the metallurgical and mechanical properties, Materials Science and Engineering, 519/1 (2009) 19-26
Such condensed finding model can be readily used in control frameworks architectures to fabricate AZ31B sheets with predefined mechanical properties.
The two main factors that directly affect the simulation time and the result’s conversion for any FEM simulation are the mesh size and time step.
This numerical model can be readily used in future control frameworks architectures to fabricate AZ31B sheets with predefined mechanical properties.
Prisco., Friction stir welding of lap joints: Influence of process parameters on the metallurgical and mechanical properties, Materials Science and Engineering, 519/1 (2009) 19-26
Online since: March 2006
Authors: Hyoung Seop Kim
The microstructures and the mechanical
properties of the severely plastic deformed materials are closely related to the degree of plastic
deformation, hence, understanding the phenomena associated with the stress, strain and strain rate
development is very important for an optimum ECAP process design and the best final mechanical
properties.
Figure 1 shows (a) a schematic drawing of ECAP, showing various geometric factors which are considered as the major controlling factors (i.e. channel and corner angles) for strain and microstructural evolutions and (b) an ECAP processing die set.
Although the two angles, channel angle and outer corner angle, are easily controllable factors, there are many other control factors in geometry, material and processing variables listed in Table 1.
The control variables affect internal parameters, resulting in success or failure in terms of geometries and properties of the ECAP processed workpiece.
For this purpose, the finite element results of ECAP for various geometric factors are described.
Figure 1 shows (a) a schematic drawing of ECAP, showing various geometric factors which are considered as the major controlling factors (i.e. channel and corner angles) for strain and microstructural evolutions and (b) an ECAP processing die set.
Although the two angles, channel angle and outer corner angle, are easily controllable factors, there are many other control factors in geometry, material and processing variables listed in Table 1.
The control variables affect internal parameters, resulting in success or failure in terms of geometries and properties of the ECAP processed workpiece.
For this purpose, the finite element results of ECAP for various geometric factors are described.
Online since: October 2012
Authors: Wen Cai Xu, Gai Mei Zhang, Jian Dong Lu
Dynamic cushioning performance is one of the important properties to evaluate the gasbag packaging as buffer packaging material.
The Mechanical Analysis of Gas inside Air Bags in Impact Process Cylindrical air bags are taken as an example to analyze the mechanical changes of gasbags under impact process, the changes of gasbags shape is shown in Fig.1[3].
Except static stress, one of the main factors, which affects the gasbags X, is the tensile property of the film which products the gasbags.
In the process of using gasbag packaging, excessively high gas pressure affecting the inner wall of gasbag packaging will cause the bursting.
Du: The Mechanical Calculation and Technology Optimization of Ship Launching with Airbags (MS, Wuhan University of Technology, China 2008), pp. 6-9.
The Mechanical Analysis of Gas inside Air Bags in Impact Process Cylindrical air bags are taken as an example to analyze the mechanical changes of gasbags under impact process, the changes of gasbags shape is shown in Fig.1[3].
Except static stress, one of the main factors, which affects the gasbags X, is the tensile property of the film which products the gasbags.
In the process of using gasbag packaging, excessively high gas pressure affecting the inner wall of gasbag packaging will cause the bursting.
Du: The Mechanical Calculation and Technology Optimization of Ship Launching with Airbags (MS, Wuhan University of Technology, China 2008), pp. 6-9.
Online since: August 2016
Authors: Johanna Kerschreiter, Johannes W. Stock
In contrast, the impact of the cut edge on the mechanical properties is not yet understood sufficiently.
Table 1: Properties of the CFRP material.
Dynamic open hole tensile testing according to ASME D5766 [2] could be identified as a sensitive indicator of the mechanical edge properties in laser cutting in previous studies [1].
Beneath this temperature the mechanical properties of the rigid composite were determined as a function of the thermal stress.
E.: Peterson's stress concentration factors. 3rd ed.
Table 1: Properties of the CFRP material.
Dynamic open hole tensile testing according to ASME D5766 [2] could be identified as a sensitive indicator of the mechanical edge properties in laser cutting in previous studies [1].
Beneath this temperature the mechanical properties of the rigid composite were determined as a function of the thermal stress.
E.: Peterson's stress concentration factors. 3rd ed.
Online since: March 2017
Authors: Ladislav Kander, Šárka Hermanová, Petr Čížek, Zdeněk Říha
Effect of various welding technology including simulation heat treatment on mechanical and fracture properties have been studied.
Conventional mechanical properties as well as unconventional mechanical properties (fracture mechanics, low-cycle fatigue and stress corrosion cracking in water environment) have been studied.
Required mechanical properties including elevated temperature and transition temperature are given in the Table 2.
In fact real level of mechanical properties was found to be much higher compare to the requirements [1].
· Structure and basic mechanical properties were satisfied compared to technical requirements and standards
Conventional mechanical properties as well as unconventional mechanical properties (fracture mechanics, low-cycle fatigue and stress corrosion cracking in water environment) have been studied.
Required mechanical properties including elevated temperature and transition temperature are given in the Table 2.
In fact real level of mechanical properties was found to be much higher compare to the requirements [1].
· Structure and basic mechanical properties were satisfied compared to technical requirements and standards
Online since: October 2018
Authors: Vitaly A. Beregovoi, A.M. Beregovoi
., Penza, Russia
avabereg@rambler.ru, bambereg@rambler.ru
Keywords: siliceous ceramics, structure formation, mechanical and thermophysical properties
Abstract.
The studies of the processes of structure formation and formation of properties of light ceramics with a density of 450...1200 [kg/m3] are presented.
Results and Discussion Factors affecting this process are the particle size, the water-solid ratio (W/S) of the raw meal and the presence of fluxing additives.
To study the elastic-plastic properties we obtained loading diagrams of siliceous ceramics in the «s – e» coordinates (Fig. 2).
When adjusting the compositions of siliceous ceramics, it is necessary to take into account not only the thermoplastic properties of the glass additive, but also the intrinsic strength of the vitreous ligament formed during subsequent cooling.
The studies of the processes of structure formation and formation of properties of light ceramics with a density of 450...1200 [kg/m3] are presented.
Results and Discussion Factors affecting this process are the particle size, the water-solid ratio (W/S) of the raw meal and the presence of fluxing additives.
To study the elastic-plastic properties we obtained loading diagrams of siliceous ceramics in the «s – e» coordinates (Fig. 2).
When adjusting the compositions of siliceous ceramics, it is necessary to take into account not only the thermoplastic properties of the glass additive, but also the intrinsic strength of the vitreous ligament formed during subsequent cooling.
Online since: November 2023
Authors: Frank Walther, Lars Andree Lingnau
A commercial design is usually based on mechanical material properties and additional safety factors.
Introduction The mechanical properties of industrially used components are significantly influenced by the forming process.
Similarly, there have been no studies of temperature influence or frequency influence affecting fatigue properties of the forward rod extruded components in this context.
Fig. 3. a) Load type-dependent and b) frequency-dependent fatigue properties for a shoulder opening angle of 2a = 30°.
Höppel, Cyclic deformation and fatigue properties 435 of very fine-grained metals and alloys.
Introduction The mechanical properties of industrially used components are significantly influenced by the forming process.
Similarly, there have been no studies of temperature influence or frequency influence affecting fatigue properties of the forward rod extruded components in this context.
Fig. 3. a) Load type-dependent and b) frequency-dependent fatigue properties for a shoulder opening angle of 2a = 30°.
Höppel, Cyclic deformation and fatigue properties 435 of very fine-grained metals and alloys.
Online since: February 2024
Authors: Wai Yee Yeong, Samuel Lee, Guo Liang Goh, Boon Siew Han
Various characterizations such as tensile test, lap shear test, and 3-point bending test have been conducted to shed some lights on the fundamental mechanism that is affecting the adhesion of the multi-material interface.
This suggests that the comparison of data between this work and other works for other material combinations obtained in this work should be approached with caution because various factors such as the material property, print settings and test methods.
In this work, we investigated the adhesion properties of various polymeric composites in a soft-rigid bilayer structure and found that the addition of fillers generally resulted in weaker adhesion and poorer fatigue properties compared to pure polymers.
Future research should explore incorporating mechanical interlocking features and surface treatments to enhance adhesion properties at multi-material interfaces.
Vietor, "Determination of influencing factors on interface strength of additively manufactured multi-material parts by material extrusion," Applied Sciences, vol. 9, no. 9, p. 1782, 2019
This suggests that the comparison of data between this work and other works for other material combinations obtained in this work should be approached with caution because various factors such as the material property, print settings and test methods.
In this work, we investigated the adhesion properties of various polymeric composites in a soft-rigid bilayer structure and found that the addition of fillers generally resulted in weaker adhesion and poorer fatigue properties compared to pure polymers.
Future research should explore incorporating mechanical interlocking features and surface treatments to enhance adhesion properties at multi-material interfaces.
Vietor, "Determination of influencing factors on interface strength of additively manufactured multi-material parts by material extrusion," Applied Sciences, vol. 9, no. 9, p. 1782, 2019