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Online since: February 2012
Authors: M.A. Azmah Hanim, M.Z. Shahrul Fadzli, T. Sai Hong, A. Aidy, R. Rohaizuan
So that, the properties of the candidate alloys for should be understand and must carefully apply these solders for high temperature applications step by step, in order to accomplish total lead free assembly [2].Furthermore, for high temperature solder, lack of research has been carried out to discover new alternative solder for high temperature application.
The factor that affects this phenomenon was the spallation of IMC layer.
For 97.5Bi-2.5Sb and 98.5Bi-1.5Sb solder alloys, no IMC layer formed and only mechanical joining existed at interface with some degree of mechanical grooving.
Keun : High-Temperature Lead-Free Solders: Properties and Possibilities.
Zong : Substrate Dissolution and Shear Properties of the Joints between Bi-Ag Alloys and Cu Substrates for High-Temperature Soldering Applications.
The factor that affects this phenomenon was the spallation of IMC layer.
For 97.5Bi-2.5Sb and 98.5Bi-1.5Sb solder alloys, no IMC layer formed and only mechanical joining existed at interface with some degree of mechanical grooving.
Keun : High-Temperature Lead-Free Solders: Properties and Possibilities.
Zong : Substrate Dissolution and Shear Properties of the Joints between Bi-Ag Alloys and Cu Substrates for High-Temperature Soldering Applications.
Online since: May 2016
Authors: Yi Feng, Deng Feng Zhang, Bao Chun Lu, Zhi Yuan Qian
The dead zone characteristic of proportional valve is affected by load torque.
Saturation constant is Sa, input is u, output is u’, and the saturation characteristic can be expressed as (5) Low-speed friction properties of the hydraulic motor.
Eq.9 is flow continuity equation, which expressed the relation among input flow, mechanical properties of hydraulic oil and amount of leakage.
China Mechanical Engineering, 2012, 23(2):216-219
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2007, 43(9):33-39
Saturation constant is Sa, input is u, output is u’, and the saturation characteristic can be expressed as (5) Low-speed friction properties of the hydraulic motor.
Eq.9 is flow continuity equation, which expressed the relation among input flow, mechanical properties of hydraulic oil and amount of leakage.
China Mechanical Engineering, 2012, 23(2):216-219
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2007, 43(9):33-39
Online since: June 2013
Authors: Badrul Omar, Abdlmanam S.A. Elmaryami
The model can be employed as a guideline to design cooling approach to achieve desired microstructure and mechanical properties such as hardness.
Once the temperature history is known the important mechanical properties of the low carbon steel bar can be obtained such as hardness and strength.
Then important mechanical properties such as hardness can be computed.
This means that the mechanical properties such as hardness will be different.
“Engineering Material: Properties and Selection.” 4th ed.
Once the temperature history is known the important mechanical properties of the low carbon steel bar can be obtained such as hardness and strength.
Then important mechanical properties such as hardness can be computed.
This means that the mechanical properties such as hardness will be different.
“Engineering Material: Properties and Selection.” 4th ed.
Online since: August 2010
Authors: Zhi Wei Wang, Ling Qin Meng, Yong Gao Li, Yan Qin Li, De Hai Zhang
The door structure parts include positioning
plate, door panel, door inner shell and foam layer etc., their mechanical properties such as strength,
stiffness are impossible to match completely.
Mechanical Properties of Refrigerator Door Materials.
The mechanical properties of these materials [4] are list in Tab. 1.
In order to reduce computed time, the door is simplified under the condition of un-affecting calculated results precision.
Improvement Program for Warping Ends of Refrigerator Door So many factors are involved and resulted in ends warping of door.
Mechanical Properties of Refrigerator Door Materials.
The mechanical properties of these materials [4] are list in Tab. 1.
In order to reduce computed time, the door is simplified under the condition of un-affecting calculated results precision.
Improvement Program for Warping Ends of Refrigerator Door So many factors are involved and resulted in ends warping of door.
Online since: November 2012
Authors: Bao Zhong Wu, Guo Xi Li, Jing Zhong Gong, Jing Qiu, Xin Yin
To realize dynamic properties oriented tolerance analysis and design of mechanical products, a data-driven based tolerance analysis method was proposed.
The static and dynamic stiffness and damping in the structure assembly joins can be changed to affect the product dynamic characteristics by adjusting the clearance and preload in the product assembly process.
Considering mechanical and electrical products in batch production generally accords with the normal distribution, and there are multiple factors but none decisive factor in the case.
To ensure the quality of the product and progress its assembly properties consistency, we put forward a theory that based on measured data mining the key factors of impacting on assembly performance accuracy, thereby changing the structure precision design to improve the consistency of its quality.
Using the same method, you can get the concept of other factors and the results are shown in Table 2.
The static and dynamic stiffness and damping in the structure assembly joins can be changed to affect the product dynamic characteristics by adjusting the clearance and preload in the product assembly process.
Considering mechanical and electrical products in batch production generally accords with the normal distribution, and there are multiple factors but none decisive factor in the case.
To ensure the quality of the product and progress its assembly properties consistency, we put forward a theory that based on measured data mining the key factors of impacting on assembly performance accuracy, thereby changing the structure precision design to improve the consistency of its quality.
Using the same method, you can get the concept of other factors and the results are shown in Table 2.
Online since: March 2014
Authors: Ke Rong Gai
If lightweight is required, it would be essential to use structural materials with low density, so that the launching cost and structural mass can be reduced.
2) Requirements on mechanical properties.
The manufacturing process properties will directly affect structural material performance.
The Properties and Application of Metal Materials.
Meanwhile, such factors as environmental tolerance and manufacturing process properties will also be taken into consideration.
Other materials Higher earth-observation precision is needed for high-resolution remote sensing satellites, while micro vibration of structure is the major factor affecting the observation precision.
The manufacturing process properties will directly affect structural material performance.
The Properties and Application of Metal Materials.
Meanwhile, such factors as environmental tolerance and manufacturing process properties will also be taken into consideration.
Other materials Higher earth-observation precision is needed for high-resolution remote sensing satellites, while micro vibration of structure is the major factor affecting the observation precision.
Online since: October 2014
Authors: Yun Cai Lu, Li Wei, Wei Chao, Wu Peng
Oil-immersed distribution transformers are classified into several series including S9, S10, S11, S12, S13, S15, S16 (S15 and S16 are AMT) by loss properties.
Amorphous core thin strip has characteristics of great soft magnetic properties, high hardness and good corrosion resistance.
High mechanical strength can be thought as the biggest advantage of the epoxy resin casting dry-type transformer.
The influencing factors of core annealing are more, the dispersion of core loss coefficient is bigger and the process is also more after the annealing.
So the manufacturing process is one of the important limitation factors to promote the transformer.
Amorphous core thin strip has characteristics of great soft magnetic properties, high hardness and good corrosion resistance.
High mechanical strength can be thought as the biggest advantage of the epoxy resin casting dry-type transformer.
The influencing factors of core annealing are more, the dispersion of core loss coefficient is bigger and the process is also more after the annealing.
So the manufacturing process is one of the important limitation factors to promote the transformer.
Online since: September 2014
Authors: Pei Pei Tang, Meng Bo Gao
Fatigue life of asphalt aging is the main influence factor
These indicators have many factors that affect the value of, need to combine the nature of raw materials, mixture type, soil conditions, climate conditions and construction technical level and other factors, put forward suitable for actual design standards in our country
(3) The mechanical parameters of asphalt mixture.
Mechanical parameters of asphalt mixture reflect the mechanical properties of the material in the practical work condition.
Repair early increases the road operating costs, repair delay will affect the pavement structure safety and reduce the service level.
These indicators have many factors that affect the value of, need to combine the nature of raw materials, mixture type, soil conditions, climate conditions and construction technical level and other factors, put forward suitable for actual design standards in our country
(3) The mechanical parameters of asphalt mixture.
Mechanical parameters of asphalt mixture reflect the mechanical properties of the material in the practical work condition.
Repair early increases the road operating costs, repair delay will affect the pavement structure safety and reduce the service level.
Online since: March 2015
Authors: Hao Zeng, Chao Lv, Yan Gao, Ting Yi Dong, Yong Hui Wang, Xing Quan Wang
The relationships between deposited film behaviors and sputtering target properties in some applications were also discussed.
The performance of thin film highly depends on the properties of sputtering target.
In order to select proper alloying elements, thermodynamic driving force and kinetic factors are to be considered.
Generally speaking, purity and composition tolerance may affect the film properties and reliability, while density, grain size and grain orientation may affect the particle generation and film uniformity.
It is true that desired properties are difficult to control for high purity materials.
The performance of thin film highly depends on the properties of sputtering target.
In order to select proper alloying elements, thermodynamic driving force and kinetic factors are to be considered.
Generally speaking, purity and composition tolerance may affect the film properties and reliability, while density, grain size and grain orientation may affect the particle generation and film uniformity.
It is true that desired properties are difficult to control for high purity materials.
Online since: June 2006
Authors: Mao Sen Cao, Qing Wen Ren
Since the natural frequency is one of the most
fundamental damage characteristic factors, the above linear relationship shows that the fractal
dimension of surface-crack distribution is able to effectively act as an effective damage
characteristic factor.
Different from the conventional damage characteristic factors generated from vibration tests, this factor reflects structural damage from a new perspective of fractal analysis, and provides a viable and novel approach for health monitoring and safety evaluation for concrete structures.
Extraction of damage characteristic factors is the core of the technology, and it effectively reflects degree of structural damage [1].
Development or evolution state of cracks affects the mechanical properties of structures directly.
Relationship between Fractal Characteristics and Mechanical Property.
Different from the conventional damage characteristic factors generated from vibration tests, this factor reflects structural damage from a new perspective of fractal analysis, and provides a viable and novel approach for health monitoring and safety evaluation for concrete structures.
Extraction of damage characteristic factors is the core of the technology, and it effectively reflects degree of structural damage [1].
Development or evolution state of cracks affects the mechanical properties of structures directly.
Relationship between Fractal Characteristics and Mechanical Property.