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The purpose of this paper is to investigate factors associated with press-forming of Wood Plastic Composite (WPC) products.
The properties of WPCs are determined primarily by the fiber and polymer components.
Methods This chapter provides the tested key parameters affecting compression forming.
Ashori, Effects of nanoparticles on the mechanical properties of rice straw/polypropylene composites, J.
[9] ASTM D638-10 Standard Test Method for Tensile Properties of Plastics, ASTM International (2010)

It shows that the formula of this paper can meet the engineering commands; the axial load is significant to affect casing collapsing strength, and in the actual production process should be strictly controlled.
Influence Factor Anslysis The Influence of Diameter-Thickness Ration on Casing Collapsing Strength.
The diameter-thickness is larger, but the collapsing strength is smaller, which show that the main factor that affects the collapsing is relative thickness.
[7] Yang Jie and Peng Jianshe, “Mechanical model and analysis of casing bucking in horizontal wells” ,China Petroleum Machinery, vol. 24, pp. 43-46, December 1996
Al-Bokhitan “Support Vector Machines Framework for Predicting the PVT Properties of Crude-Oil Systems”, SPE Middle East Oil and Gas Show and Conference, Kingdom of Bahrain, pp.11-14, March, 2007.

China aweihuyanghua@163.com Keywords: Micro-arc oxidation; Ceramic coatings; Al2O3 nanoparticles ; Surface properties Abstract.
Ceramic coatings obtained using the above technique possess a number of valuable properties and can be used.
Both intrinsic factors and extrinsic factors affect the formation and microstructure of micro-arc oxidation coatings.
However, few data at present are available concerning the nanoparticles, microstructure and mechanical properties of such coatings.
Effects of Nanoparticles on microstructure and properties of micro-arc oxidation coatings on 6063 aluminum alloy, Trans.Mater.

Effect of the related factors such as water proportion, mineral admixtures and chemical activators on characteristics of Hemi-hydrate FGD gypsum-fly ash complex cementing material is studied through a number of single factor experiments.
So study of effect law of calcining temperature on properties of FGD gypsum is very important.
Fig.1 Effect of calcination temperature on properties of FGD gypsum Experimental Results and Analysis Determination of Basic Mix Proportion.
Water-aggregate proportion here refers to ratio of water to all the other raw materials, namely water: (HFGD gypsum + fly ash + cement + lime + chemical activator), which directly affects the strength, density of the cementing material and both the sound insulation and thermal insulation properties etc.
Table 2 Effect of Water-aggregate Proportion on properties of cementing material No.

One of the limiting factors in the use of Super304H is their susceptibility to the water vapor oxidation on the steam-side.
The properties of the materials at 600℃ have been listed in table 1.
Table 1 Materials properties at 600℃ E（GPa） ν α（10-6） Fe3O4 210 0.29 9.1 Cr2O3 230 0.25 5.4-7.5 Super304H 158 0.3 18.7 Thermal stress Fig. 4 Thermal stress distribution at 600℃ Figure 4 revealed the thermal stress distribution of the oxide layer and S304H substrate.
In the literature, it has been reported that interface between the inner and outer layer should be the easily failed locations because of the weak adhesive force and lower deformation properties of oxide layer.
Thus, the value of the stress also had been affected by the variation of the slope.

For finite feature sizes, the normal stress in the thin film feature must be zero at the free edge, so that the mechanical properties of the interface govern the decay of normal stress which is transferred by shear stress across this interface.
However, because an interfacial region does not exist, the strength of the interface is determined through a combination of the elastic properties of the two constituent materials.
Results To compare the solutions, the dominant eigenvalues can be calculated for a particular set of geometric and material properties using all of the models.
The first example involves a film and substrate with equal thicknesses (t = l) and material properties (EI = EII, νI = νII = 0.3).
(6) However, for more general cases of the substrate and thin film properties, the real eigenvalue of the shear lag model possesses the following form: R' 1 β LS ∝−

The precipitation of these phases increases the strength of the Ti-6Al-4V alloy and, consequently, enhances the mechanical properties.
THT aims to enhance mechanical properties by a microstructure development being unattainable by conventional heat treatment [1].
The chemical composition and the mechanical properties of the alloy Ti-6Al-4V were inspected in this study and illustrated in Table 1 and Table 2 respectively.
As a result, the strength of Ti-6Al-4V increases and its mechanical properties is improved.
The mechanisms relevant for the success of THT of Ti-6Al-4V depend on several factors.

(1) The stress and deformation analysis of deep and large foundation pit need to study the unload problems and soil stress, strength and deformation properties induced by excavation [7].
There are too many factors that influence soil pressure, such as the properties of soil, the depth of excavation, supporting types and water, etc.
What’s more, each of these factors has different influence degree to earth pressure.
In a word, the above factors induce that earth pressure distribution is different.
The physical and mechanics parameters of rock and soil have close relation with the sampling method, test method, boundary conditions and other factors.

According to the machining process of the factors causing error to occur any regularity, processing error into system error and the random error, According to the nature of the changes with time, and can be divided into static error and dynamic error.
Processing System Dynamic Error Analysis Many factors influence the machining accuracy of machine tools, in addition to the complex and static precision, also exists dynamic error.
In the machining process aspheric, these factors which influence the error in response to the final piece shape error.
Turning process includes various physical phenol, a large number of random factors, including due to a hot cutting of high temperature for machining accuracy has very big effect.
Many factors influence the temperature of cutting, reduce the heat cutting methods is to reduce the heat cutting and heat transfer speed.

Recently electron beam [11-13] or laser beam [14-17] have been preferentially used for remelting since such beams are much more concentrating to avoid affecting the base materials during remelting.
This is highly related with the fluid flowability inside the melt pool, which is controlled by factors of temperature gradient, surface tension of liquid/solid and liquid/vapor surfaces.
Combining the affecting parameters, a specific energy density r was used to correlate with the remelting effects.
Pereira, Laser remelting of WC-CoCr surface coated by HVOF: Effect on the tribological properties and energy efficiency, Surf Coat Technol 427 (2021)
Wu, Optimized Microstructure and Properties of Cr3C2-NiCr Cermet Coating by HVOF/Laser Hybrid Processing, J Therm Spray Technol 28 (2019) 1072-1080