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Not only to assume the role of a mechanical connection, but also assume the role of electrical connections.
On BGA solder joints itself, the main factors affecting the solder joint reliability under the vibration impact loading environment are the diameter and height of the solder joint.
The reason may be at the combined position, due to the different material properties and geometric cross-section size changes are more dramatic, then it is prone to stress concentration under the shock and vibration environment.

Mechanism of Medium Pressure Difference Pipe Robot Speed Fluctuation Gaojian Cui1, a, Shenyuan Jiang1,2,3,b, Jiangyong Li2,c and Wenfei Wang3,d 1 College of Electromechanical Engineering, Changchun University of Science and Technology, Changchun, China 2 College of Mechanical Engineering, Beihua University, Jilin,, China 3 College of Electromechanical Engineering, Harbin University of Technology, Harbin China agaojiancui@126.com, bjiangshy_2002@163.com, c604204901@qq.com Keywords: Medium pressure difference, Pipe robot, Speed fluctuation, Simulation Abstract.
Figure 2 Comparison of three speed fluctuation curve Conclusions The main factors of affecting speed fluctuation conclude the speed influence coefficient, Robot quality, Equivalent stiffness, equivalent damping and Friction resistance mutation value.
Equivalent stiffness and equivalent damping depend on the nature of the physical environment of the pipe and the fluid medium is the inherent properties of the system.

The Influence of Plastic Strain on the Corrosive Properties of Plasma Sprayed Intermetallic NiAl and Ni3Al Coatings Robert Starosta Gdynia Maritime University, Faculty of Marine Engineering, Department of Marine Maintenance, ul.
The alloys on systematic intermetallic phase matrix with aluminium fraction possess unique physicochemical and mechanical properties (e.g.
All these properties have been applied to the production of machine parts running in hard conditions (e.g. internal combustion turbine blades, engine exhaust valves, turbo blowers rotors) [2, 3].
Corrosion resistance of the object undergoing plastic treatment depends mainly on two factors: draft value and surface roughness.
Liu: Processing, properties, and applications of nickel and iron aluminides.

Besides the traditional practical factors, technical factors, aesthetic factors and symbolic factors, it also should include the requirements of modern society, such as the market factor, interpersonal factor and environmental factors, etc. moreover, it also relocates the connotation of traditional design factors and their correlations and make more profound expression.
If lack of the systematic design concept and the way of analyzing the design factors systematically, it is very difficult to recognize the complicated design factors, even more difficult to achieve the design objects, and just fall into the blind “design”.
When one of the factors changed, it inevitably causes the overall change in varying degrees.
If the market demand factors varied in this system, the rest factors in this system must vary accordingly, so as to make the system lie in a certain motion state.
Summary For the design of the modern ceramics products, the factors involved with process factors (such as the whole design process, the product life cycle and the process of information feedback), function factors (including practical function, cognitive function and aesthetic function), form factors (including shape, color and texture), technical factors (such as the material technology, production technology, information technology, management technique and operation technology, etc), economic factors (such as the market demand and competition situation and economic value, etc.) and environmental factors (environmental protection, green design and sustainable development) and so on.

Factors’ contribution rate can be obtained by the F test: x2> x1> x3, the freezing time> freezing temperature> thawing temperature [10,16].
It can be seen that the interaction of three factors significantly influence the oil recovery rate and there are obvious extreme values in the analysis.
A. emulsion×1000（Nitrogen fixation, SEM cooling stage） B. emulsion×2000（Nitrogen fixation, SEM cooling stage） C. frozen-thawed emulsion×1000 D frozen-thawed emulsion×3000 Fig. 5 Status of micro-structure before and after de-stabilization of emulsion DSC test on emulsion before and after demulsification Different proteins have different functional properties, which is related to the structure of proteins and protein denaturation of different levels will affect the protein structure, thus further affecting the functional properties of proteins.
DSC analysis can provide a lot of information, such as the solvent, the molecular interaction between the impact of changes in protein denaturation, and processing conditions on the properties of protein function and so on.
Some physico-chemical properties of Moringa oleifera seed oil extracted using solvent and aqueous enzymatic methods.

The proposed method is based on the technique used in Japan to evaluate the mechanical properties of coatings applied by gas-thermal deposition methods (Japanese industrial standard N8663-1961) [18].
Further study of the mechanical properties of coatings applied by gas-dynamic deposition using a mechanical mixture of copper and zinc particles showed that this technique is very sensitive to the processes occurring in the applied metal layer and resulting in change in the phase composition.
Method of “ring separation” allows investigating the influence of technological factors of coating application and structural and phase transformations in the applied metal layer on cohesion.
Pugachev, Gazodinamicheskoe napylenie: struktura i svojstva pokrytij [Gas-dynamic coating: structure and properties of coatings], 2017, p. 240.
Efremov, Latuni ot fazovogo stroeniya k strukture i svojstvam [BRASSES from phase structure to structure and properties], 2016, p. 314.

The content of stone powder in machine-made sand affected the carbonization of MSC in some extent, which should be limited in a reasonable range.
Introduction As we know, the resistance of concrete to carbonization is an important index of durability which affects the serviceability and the service life of concrete structures.
Combined to the studies of the mechanical properties and the drying shrinkage of MSC [5, 10, 11], it is adaptable to limit the content of stone-powder in the range of 7~13% when the strength grade of MSC is not greater than C30, and less than 10% when the strength grade of MSC is not less than C50.
Forecast of Carbonized Depth of Concrete As the carbonization of concrete was affected by complex factors, there were many forecast models which could be summarized as those based on the fundamental reaction engineering principles, the lab experimental results and the practical engineering investigations [12].
The content of stone powder in machine-made sand affected the carbonization in some extent.

Impurity control is also of concern in recycling due to the pickup of elements such as Fe from contaminants in the scrap, which can detrimentally affect the alloy properties.
Mg improves the mechanical properties without impairing the corrosion-resistance [16].
Fe rich phases in Al act as stress raisers and points of weak coherence, leading to a reduction in the mechanical properties, especially ductility of Al alloys [13-14, 18].
Doty, Factors Controlling the Type & Morphology of Cu-Containing Phases in 319 Al Alloy.
Aluminium Alloys: Their Physical & Mechanical Properties, Pts 1-3, 1996. 217: p. 141-6 [33] Luan, B., X.

Effect of Silica on the Properties of Bagasse Pith Cushioning Packaging Materials (BPCPMs) LV Yanna 1,2, a , HE Beihai 1,3, b, OU Jianzhi 2, c and Wu Yali 2, d 1.
Table 1 shows the physical and chemical properties of silica used in this experiment.
Under certain experimental conditions, lower apparent density, lower hygroscopicity and excellent mechanical properties of cushioning packaging material can be achieved.
Mechanical testing Static compression tests were carried out to determine the compressive stress-strain (σ-ε) and static cushion factor-strain(C - σm ) curves.
Silica’s micro dispersion will affect the mechanical properties of materials [16].

The phase transformation in this process involves the material heat transfer which is strongly affected by the material sintering phenomena.
Introduction The cost and associated time of producing one or few mechanical components is often very high relative to those for manufacturing high-volume of the same items where automation is employed.
At low-temperature, only the phenomenon of convection affects the heat conductivity.
The material physical properties, laser properties and the initial conditions are reported in table 1: Table 1: Initial conditions and material constants Initial conditions: Initial bed temperature )K(T0 ° 398 Initial density )m/kg( 3 0ρ 660 Initial solid fraction )1( 0ε− 0.55 Material constants: Full dense solid material )m/kg( 3 sρ 1,200 Convection coefficient )Kms/J(h 2 ⋅⋅ 25 Activation energy )mol/J(E 51.745 10× Surface emissivity of the material Rε 0.8 Average diameter of powder )m(Dp 630 10−× Laser beam radius )m(r0 0.0012 Regarding the finite element model, for simplicity we choose a cubic specimen with dimensions of0.024 0.003 0.0005 m m m × × .
Tontowi: Proceedings of the Institution of Mechanical Engineers Vol. 213B (1999), p. 333