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The dielectric strength of cable insulation depends on many factors such as the existence of filler material in the insulation.
The influence of Silicon dioxide (SiO2) filler on the dielectric and mechanical properties of polyvinyl chloride (PVC) cable were analyzed.
From the results, it is shown that the filler material has improved the dielectric and mechanical properties of the cable insulation.
Introduction The Electrical properties are affected by the amount of filler added to the composite.
Conclusions The test results show that the addition of silicon dioxide has an impact on the dielectric and mechanical properties.

Effect of PTFE Content on Microstructure and Tribological Properties of Cu-Sn Coating Li-xia YING1,a,*, Xiao-Hui WANG2,b, Chun-Jie ZHANG3,c, Guan-Nan LIU4,d, Gui-Xiang WANG5,e 1,2,3College of Mechanical and Electrical, Harbin Engineering University, Harbin, Heilongjiang, China 4College of Mechanical and Electrical, Harbin Institute of Technology, Harbin, Heilongjiang, China 5College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, Heilongjiang, China ayinglixia@hrbeu.edu.cn, b1145025320@qq.com, c1542039782@qq.com, d446765333@qq.com, ewgx0357@126.com *Corresponding author Keywords: Electrodeposition, Cu-Sn, PTFE, Tribological properties.
On the other hand, it is difficult to exert excellent antiwear and antifriction comprehensive properties under dry friction condition.
As excellent lubricant particles, PTFE has many unique properties, such as great chemical stability, low friction coefficient (0.01~0.1) and excellent self-lubricating properties and hence received much attention [6,7].
In general, the amount of particles in the plating bath is the main factor affecting the content of the particles in the coating.
[10] Zhirong Huang, Panyu Li, Effect of process parameters during preparating Cu-Sn-PTFE self-lubricant composite coating by electrodeposition method on its properties, Materials for Mechanical Engineering. 11 (2011) 78-81.

This thesis introduces various factors of surrounding rock stability mechanism and instability modes, indicates its control methods and thought.
Affecting Factors of Rock Stability Rock Structure and Characters Rock structure is a complex body constituted by rock and structure surface.
Besides, block property and adhesion of faultage zone affect rock stability.
And soften and argillization lowers rock mechanical property and friction angle and cohesion.
And it happens mainly in faultage affecting zone, strongly weathered zone and friction loosen zone.

The highest mechanical properties in both alloys being obtained after deformation ε = 2.3.
Discussion In the examined alloys, in which the main alloying element is copper (about 4.5%wt), the alloying additions play a very important role, affecting both alloy structure and properties.
The effect of grain size was also reflected in the mechanical properties of the alloys.
The same factors are also expected to affect the structural reorientation in this alloy after annealing at 300°C/10min.
The effect of the structure was reflected in the mechanical properties, which for alloy B were higher.

These factors about scaffolds can affect regeneration rate and proliferation rate significantly depending on fabrication condition.
The mechanical properties were tested by Instron.
Therefore, the optimization of fiber thickness by controlling the gel concentration is a very important step because it affects the pore and mechanical properties of the scaffold.
Analysis on mechanical properties.
As a result, gel-spun scaffolds have good tissue in-growth ability and strong mechanical properties.

The factors to influence the burr removal and the micro-channel surface quality are analyzed in order to take measures to improve the surface quality.
The factors to influence the burr removal and the micro-channel surface quality are analyzed in order to take measures to improve the surface quality and the burr removal rate.
The W10 B4C micro abrasives are used in micro slurry jet polishing experiments, the abrasive property is shown in Table 2.
Friction factors in smooth trapezoidal silicon microchannels with difrerent aspect ratios, International Joumal of Heat Mass Transfer. 2003. 46: 25 l 9-2525
Mechanical Engineering. 3 (1984) 60-69

The heterogeneity of microstructure and mechanical performance of welding joints were affected by unique material properties such as high resistivity and low thermal conductivity, instantaneous high temperature of spot welding thermal cycle, and uneven local cooling rate.
Tab.1 Chemical composition of BR1500HS C Si Mn Cr Ti B S P Fe 0.21 0.28 1.35 0.23 0.023 0.0033 0.012 0.0055 others There were interaction effects of welding current, power-on time and electrode pressure, on welding joint for hot stamping high-strength steel [7], in this paper, orthogonal experiment was designed by selecting the three main factors as experimental factors, taking 4 levels of each factor, and the factors and levels was shown in Tab.2.
Tab.2 Distribution of factors and levels NO.
Welding current/kA （Factor A） Welding time/ms （Factor B） Electrode pressure /kN （Factor C） 1 6 300 2.5 2 7 400 3.5 3 8 500 4.5 4 9 600 5.5 The experimental results The orthogonal table L16(45) was chosen, a total of 16 experiments were done, each experiment was repeated three times, each shear load was obtained by testing each welding piece and the mean value was taken, the experimental performance indicator was chosen as joint bearing property, the peak tensile shear load was chosen as the characteristic.
The weld joint consists of three parts: base metal, heat affected zone and fusion zone.

The quality of the shearing edging of blanking parts was used to evaluate the different influence degree of three factors.
However, the too fast deformation speed will not only affect metal plastic property, but also produce temperature effect.
It is made up of three affection factors and three levels.
Three affection factors include blanking clearance, blanking speed and the die surface roughness.
The result shows that the optimum scheme is A1B1C1, and the die surface roughness affects the quality of the shearing edging more than other two factors.

Developing a Mathematical Model to Predict Tensile Properties of Friction Welded AISI 1035 Grade Steel Rods S.T.
In this work, frictions welding of AISI 1035 grade steel rods of 12 mm diameter were investigated with an aim to predict the value of tensile properties.
Here, the three factors, five levels, central composite, rotatable design matrix are worn to limit the number of experiments.
Characterization of mechanical properties in AISI 1040 parts welded by friction welding, Materials Characterization 58 (2007) 1033–1038
Dunkerton, Toughness properties of friction weld in steels, Welding Journal (1986)193–201, [4] E.

For HA coating, two factors are of primary importance (3) .
The first is whether the changes in the composition and properties of the coating materials damage their in vivo performances.
The nanostructure has better mechanical properties and stability in vivo, perhaps this is one of factors by which the WS samples have the highest push-out strength between implants and bone.
However, completely crystalline HA coating is not beneficial since the completely crystalline HA coating would have worse mechanical properties and inhibit both cell proliferation and alkaline phosphates activity (6,7) .The Ca.
In addition, the amorphous phase and nanocrystals were also beneficial in inhibiting crack formation and better fatigue properties than a crystalline coating, Therefore, it is important to retain some amorphous phase and nanocrystals in the coating to enhance the mechanical properties