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The results of aging properties after boiled and UV light treatment show that bonding properties of PVC wood-plastic composite materials glued with two adhesive were both degraded after aging，but bonding properties glued with epoxy adhesive was better than acrylic ester adhesive.
WPC has advantages of both wood and plastic's properties.
Results and discussion Basic Properties (1)Adhesion Properties.J-39 adhesive is a two-component room temperature fast-curing acrylic ester adhesive [12].
Weathering of adhesive joints test For the products used in wet conditions, in order to ensure its long-term use, we need to examine bonding durability of bonding material, which are caused by water and environmental factors [13].
References [1] CHEN Zhi-xiu: PVC wood-plastic composite material properties and application.

Therefore, determining the range of excavation unloading zone accurately is one of the key factors to ensure the rationality and validity of numerical simulation results of rock slope excavation.
Formation of natural unloading zone is a very long period, which is often affected by climate, topography, rock type and structure.
Building the mechanical model.
Conclusions Rock mass in unloading zone is under unloading condition, whose stress and strain analysis, deformation analysis， and other numerical simulation should be based on the theory of unloading rock mass mechanics, for mechanical properties of rock mass under unloading condition are essentially different from properties under loading condition.
Determining the range of excavation unloading zone accurately is one of the key factors to ensure the rationality and validity of numerical simulation results of rock slope excavation.

The increase in the degree of development of civilization and technology has increased the properties and harmfulness of the wastes generated [1].
The curve of TG/DTA of raw clay Physical properties of fired clay bodies The shrinkage, density, apparent porosity and water absorption of the samples are key factors affecting the properties of the porous clay ceramics.
Mechanical strength Mechanical strength is a very important parameter to meet engineering requirements in cornstruction applications [8].
Judicious choice of the BW amount added and the firing temperature can result in different combinations of properties.
From the results obtained in this work, an amount of 20% BW and a firing temperature of 1125oC can be concluded to offer the best combination of properties.

The factors including pressure and temperature which play important role in fusion bonding were analyzed in molecular level.
Introduction With many advantages in terms of low cost, mechanical properties, and ease of processing polymer has a wide range of applications in MEMS and is replacing conventional materials such as glass and silicon etc [1].
A number of studies have demonstrated the application of molecular simulation methods to compute mechanical properties of polymers [8,9] and results obtained from these simulations have been encouraging since they agree rather well with the laboratory measurements.
The deformation was affected by pressure seriously.
Without considering other factors relatively small pressure and high temperature relatively are necessary for precise fusion bonding.

The results indicate that the upright magnesium reducing furnace has perfect flue gas flow field and temperature field to meet the challenge of the magnesium reducing process; the major factors that affect the magnesium reducing reaction are the low thermal conductivity of slag and the high chemical reaction heat absorption.
Other parameters: The property parameters of the smoke can be regarded as RCO2=0.13, RH2O =0.11, RN2=0.76, temperature t＝1250℃.
These are the major factors that affect the rate of the magnesium reducing reaction, and its key problem is just the slow calefactive process of the central material.
The result shows that the major factors, which restrict the speed of the magnesium reducing reaction, include low thermal conductivity of slag and the high chemical reaction heat.
Mechanical Engineer,” No.1, 2002, pp.6-8.

It is also important for the membrane to have excellent mechanical properties since most of the separation processes involve pressure – driven operations.
This polymer is one of the most widely used materials for membrane fabrication due to its mechanical strength and excellent film-formation properties [6].
The fabricated membranes were air dried overnight and were subjected to different characterizations to determine their physical, mechanical, and surface properties.
These morphological observations validate the well dispersion of the nanozeolite in 1% wt. sample and the possible agglomeration in 5% wt. sample, thus affecting mechanical property and contact angle measurements (as discussed in the previous sections).
These factors prevented water from passing through the membrane, thus, resulting in the gradual increase in contact angle measurements.

The scientific reason of this work is the applying of High Power Diode Laser (HPDL) for improvement of aluminium`s mechanical properties, especially the surface hardness.
Mechanical properties of the Al-Si alloys are linked to the shape and distribution or size of the Si eutectic present in the microstructure, for the reason of the enhancement of the mechanical properties.
The structure investigation and enhancement of mechanical properties, especially hardness is the practical aim of this project.
The aim of this work is to determine the used laser parameters and investigation of the obtained properties of the surface layer of the remelting zone and the heat affected zone.
The physical and mechanical properties are presented in table 2.

All of these effects have a substantial influence on the fatigue properties of metals [2].
Tensile properties and Vickers hardness (HV500g) Tensile properties Vickers Hardness (HV 500g) E [GPa] σys [MPa] σus [MPa] A [%] Surface 1/4 diameter Centre D2205h 174 629 793 51 337 272 258 D2205hsp 163 637 795 42 340 280 263 D2205c 156 971 1124 16 374 356 334 D2205csp 157 967 1118 15 370 353 335 As shown in Table 2, the shot peening process does not affect the mechanical properties of the bars, as might be expected, since this process only affects the bar surface.
This finding may be explained by different important factors, such as differences in the geometry and size of surface defects and in the residual stress pattern between hot and cold rolled reinforcing bars [9].
However, there are other factors affecting the fatigue behaviour of corrugated bars, such as the residual stresses induced during manufacture and surface defects, which also need to be controlled.
Effects of shot peening on fatigue properties of 0Cr13Ni8Mo2Al steel.

.), affecting the mechanical properties and appearance quality of the products and making it difficult to meet requirements of modern industry [1].
Factors affecting shrinkage of products include volume shrinkage, pressure, crystallinity, and orientation.
Based on the above factors of injection molded part warpage, the mold flow software divides the causes of warpage into following three aspects: 1.
Then, mold flow software is used to analyze the degree of three factors affecting warpage.
Figure 8 Runner system of solution 2 Figure 9 Cooling circuit of solution 2 Then, Mold flow software is used to analyze the influence degree of three factors affecting warpage.

The Effect of Hybrid Surface Modification; Combination of Fine Particle Bombardment Treatment and Nitriding, on Fatigue Properties of Steel Shoichi Kikuchi1, a, Jun Komotori2, b, Yutaka Kameyama 1, c and Kengo Fukazawa3, d 1 Graduate school of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kouhoku-ku, Yokohama-shi, Kanagawa, 223-8522, Japan 2 Department of Mechanical Engineering, Keio University, 3-14-1, Hiyoshi, Kouhoku-ku, Yokohama-shi, Kanagawa, 223-8522, Japan 3 Neturen Co., Ltd.
In order to clarify the effects of the hybrid surface modification process; a combination of Fine Particle Bombardment (FPB) treatment and nitriding, on the fatigue properties of AISI 4135 steel (stress concentration factor: α=2.36), high cycle fatigue tests were carried out with a rotational bending machine at room temperature.
It was revealed that treating process sequence did affect residual stress distributions.
The aims of this study are to propose a new hybrid surface modification process; a combination of Fine Particle Bombardment (FPB) treatment and nitriding and to clarify the effects of this hybrid surface modification process on fatigue properties of AISI 4135 steel.
Steel bars of a 16mm in diameter were machined into the notched specimen with a stress concentration factor; α = 2.36.