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The affect of casing eccentricity on stress at the cement ring interface was analyzed.
Analyzing the material mechanical properties of consolidation components, it can be found that the cement ring ontology ultimate strength and deformation ability is far lower than the casing, under the same load conditions, the strain response vary widely, cement ring, casing and the strata rock cementation interface tensile ability will directly affect the sealing reliability of concretion body.
The finite Element Mechanics Model of Combination under the Interface Cementing According to the principle of elastic mechanics and finite element theory can establish corresponding any deep well casing-cement ring-strata rock consolidation plane strain mechanical model.
Article takes into consideration the cement ring interface cementing strength on consolidation stress and strain, the influence of the interface cementation mechanics relation can be described as: (6) σ is the normal contact stress (tensile); kn is the interface normal contact stiffness, be determined by the initial load phase’s slope of linear elastic section; u is the interface contact gap; dn is interface separation factor.
Conclusions 1.Setting up casing-cement ring-strata rock consolidation finite element analysis model which consider the cementing interface contact properties, under different working conditions, influence of casing eccentricity on cement ring interface load is analyzed. 2.Eccentricity influence laws on interfacial contact pressure are bound up with the value of casing pressure and the in-situ stress.

Introduction Duplex stainless steels (DSSs) consisting of a dual structure of austenite + ferrite possess the superior mechanical and corrosion properties, and have been applied to various industrial fields such as petrochemical, power and seawater desalination plants.
Furthermore, numerical simulation of solidification cracking susceptibility was conducted in order to clarify the affecting factors of solidification cracking. 2.
Furthermore, numerical simulation of solidification cracking susceptibility was conducted in order to clarify the affecting factors of solidification cracking.
(3) In order to clarify the affecting factors of solidification cracking, numerical simulation of solidification cracking susceptibility was carried out.
[3] N.A.McPherson, Y.Li and T.N.Baker: "Microstructure and Properties of As Welded Duplex Stainless Steel", Sci. & Technol.

Research on Method of Equivalent Heat Transfer Straight Pipe with Material Properties in the Cement Clinker Unit Body Yan Wen 1,a, Hai-long Yue 2,b, Bin Liu 3,c (1.Institute of Mechanical Engineering Yanshan University Qinhuangdao Heibei Province China 2.Institute of Mechanical Engineering Yanshan University Qinhuangdao Heibei Province China 3.Institute of Electrical Engineering Yanshan University Qinhuangdao Heibei Province China) Keywords: material properties, heat transfer, straight pipe, porous medium, seepage, Abstract: In order to accurately master the material heat transfer properties of the cement clinker, the theory of fluid flowing and heat transfer in straight pipe was applied to the cement clinker accumulation body porous medium in this paper.
This paper obtained a simple evaluation method of the material heat transfer properties of cement clinker which has more engineering application value.
Introduction The cooling process of the cement clinker directly affects the quality of cement and utilization ratio of the energy.
Research of the heat transfer mechanism and the material heat transfer properties of cement clinker can provide a better guidance for the grate cooler to achieve optimum heat transfer.
This calculation and evaluation method of heat transfer in porous medium and the material properties have more engineering application value. 2.

Improvement of Wood-Cement Composition Properties with Microsilica Additive E.Yu.
Two interrelated factors (chemical and physical) could be distinguished at that.
The degree of influence of these aggregates on the structure formation and physico-mechanical WCC properties is different.
Results and Discussion The mechanical properties of cement wood depend on a number of factors [1].
Two interrelated factors (chemical and physical) could be distinguished at that.

Such degradation is influenced by the response of coatings to environmental factors such as high temperatures and exposure to ultraviolet radiation, as well as chemical factors.
Coating life in the region of these displacement concentrations is likely to be affected by the local strain effects, and the structural loading history may therefore be a factor which needs to be considered in predicting and assessing rates of coating degradation.
Coating Failure Environment Most coating failure studies focus on two critical experimental factors, namely (i) ultraviolet (UV) radiation exposure and (ii) the combined function of heat and moisture (the hydrothermal effect) [4].
In general, both effects cause a series of chain chemical reactions in the polyurethane topcoat, leading inevitably to deterioration in coating mechanical properties; the process can be accelerated by the presence of water and elevated temperature.
The deterioration of a polyurethane topcoat can be measured through its effect on coating appearance and coating mechanical properties (i.e. tensile strength, elongation, impact strength and elastic modulus).

The main factors influencing the slective laser sintering parts precision: a)The effects of SLS system process equipment precision b)The influence of sintering temperature on the accuracy of the specimens c)The effect of laser scanning line of specimen d)Sintering thickness on the accuracy of specimen e)The effect of sintering material physical and chemical properties of specimens f)The buckling deformation in the process of sintering To solve the above factors that affect the precision of parts, the traditional control technology has not meet the requirements.
This paper using selective laser sintering method to make casting or cores, the application of fuzzy control in the artificial intelligence technology and processing factors affecting the BP neural network technology.
Existing heating, control scheme and the current instrument control effect are not ideal [3-4] : effects of powder temperature factor is more and more complex, with hysteresis control object.
References [1] Zhang Nixu ,Wenshang, Wang Wenwen.Coal mine machinery30(2009),p.3-6,(In Chinese) [2] Liu Weijun, rapid prototyping technology and its application: Mechanical industry press,2004,p.142-145.
(In Chinese) [5] Wang Peng ,Wang Xiangwei, Zheng Dayu, Mechanical engineer,8(2008),p39-40.

Proposed ranging influence research of the laser ranging LMS200 which is used in the robot navigation under the dissimilar condition, through analyzing primary factor that affect LMS200 ranging in the room and outside, and makes the experimental contrast, obtains experimental effect under environmental influencing factor, discovers reflectivity, incidence, mixed pixel and visibility and so on environmental factor which effect on practical application truly, builds the foundation for carrying on ranging application of the robot navigation.
Indoor factor considers measuring target surface properties mainly, to reduce the adverse effect which uneven intensity of reflected light brings, after LMS200 uses the binary method to dispose intensity of reflected light, although it is insensitive to the ambient light, but still received the big influence from the obstacle material and the superficial index of reflection.
Through analysis, environmental influence is mainly the target material surface properties and roughness[3,4], makes concrete from grey level, color, evenness aspects and so on considered.
Mechanical industry publisher.(1996)
Research on reflection and diffusion properties of complex background spectral radiance.

However, these properties also make them difficult to machine into a precise size and shape.
The materials properties are shown in Table 1.
In the present research, Smaller-the-Better (Eq. 1) type situation has been selected for Fz since smaller cutting force reduces the heat affected zone and at the same time maintains the mechanical properties and chemical composition of the workpiece and increases the tool life.
The “Delta” value is higher for most significant factors and its value decreases for less significant factors.
It means that all the factors affecting the Fz and MRR have been considered in the predictive models.

These factors also have an influence on the functioning of the micro forming system and the quality of the micro formed material in terms of forming system stability, deformation load, dimensional accuracy, deformation defect, surface finish, and mechanical properties of the deformed microparts [11].
Due to its small size, the properties of the material are being affected which can affect the adhesion, friction, and wear behavior of the material [64].
Geiger, Influence of microstructure on the mechanical properties and the forming behavior of very thin metal foils, Int.
Zagar, Characterization of mechanical and thermal properties of thin Cu foils and wires, Sens.
Weiss, A study of the mechanical and fatigue properties of metallic microwires, Fatigue Fract.

The thermal fatigue properties of the solder joints with various underfills were evaluated by thermal shock test.
It was known that the full curing which has lower curing temperature and a longer curing time of the underfill leads to lower thermal stresses and better physical and mechanical properties.
From these results, it was identified that the properties of underfill affected the thermal fatigue performance of flip chip package.
The factors which were affecting the electrical resistance increase of the package were consisted to be the growth of IMCs, the existence of void in the solder or underfill, and the delamination.
It was indicated that the underfill C, which had the properties of highest Tg and lowest CTE value, had the best resistance to the thermal fatigue failure.