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The products were analysed using the metallographic and CT analyses and the leak tightness was tested Introduction The design of the die casting mould and especially the placement and dimensioning of the tempering system is one of the most important factors affecting the final quality of the castings.
This system also does not provide the mould preheating, which adversely affects its service life.
After the first testing of system functionality the area affected by the unconventional cooling was found to be too small and two other expansion chamber were added to the core.
Pasko, Influence of technological factors of die casting on mechanical properties of castings from silumin, Lecture Notes in Electrical Engineering, 240 LNEE, (2013), pp. 713-722

Thus, the choice of the materials is performed according to their properties.
Shrinkage factors for the Formulas 1 and 2 The numbers indicated in Figure 4, obtained for the paste slices shrinkages, are slightly higher for Formula 2.
Semi-industrial test The specimens were formed, and adequate control over the variables influencing each ceramic process step allowed obtaining parts with suitable, reproducible, properties.
A proper monitoring of the pastes properties during semi-industrial tests was performed.
These tests are: cantilever mechanical strength, breaking mechanical test, transverse electrical resistance and electromechanical test.

Also the relationship between mechanical properties and microfracture process in graphite was not enough analyzed.
Analysis of such microfracture behavior as stochastic process is needed in order to understand the mechanical properties of these materials quantitatively.
In this study, we performed AE measurement during mechanical properties tests, and considered microfracture process by stochastic process theory.
Finally, the relationship between mechanical properties and microfracture process was discussed.
Murakami, Stress Intensity Factors Handbook, Vol. 2, p. 941

Experimental study on creep of highly-weathered breccia Qian ZHANG1, a, Shu-cai LI1,b , Li-ping LI1, c *, Qian-qing ZHANG1,d 1Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong 250061, China abowanghou1@sina.com, blishucai@sdu.edu.cn, cyuliyangfan@163.com, ddg617@163.com Keywords: rheological characteristics, highly-weathered breccia, water content, creep deformation Abstract: Mechanical property of rock is the main research object of rock mechanics.
Introduction The main research object of rock mechanics is the mechanical properties of rock, and the study of which is conducive to preventing or decreasing the related natural calamities such as rock landslides, foundation instability, cracking of dam foundation and rockbursts of jambs, and so on [1].
For the tunnel project, the surrounding rock presents a stable state after tunnel excavation; the deformation of surrounding rock has constant development over time, and after some time later, the tunnel may be unstable or destroyed, i.e., the deformation of tunnel surrounding rock is closely related to the time factor.
The softening critical load (long-term strength) and softening critical depth of soft rock are greatly reduced due to the effect of water on rock structure and mechanical parameters [3].
Not only because the deformation and failure of rock material are considerably affected by different types and sizes of micro-defects inside rock, but also the rheological constitutive models describing various kinds of rock deformation and failure are still imperfect, so many challenges still would have to be overcome in theoretical study of rock rheological constitutive model.

The position of the C=O stretching vibration is very sensitive to various factors such as the physical state, electronic effects by substituents, ring strains, etc. [24].
Consideration of these factors provides further information about the environment of the C=O group.
Ring vibrations: Several ring modes are affected by the substitution in the aromatic ring.
The electric dipoles may enhance, oppose or at least bring the dipoles out of the required net alignment necessary for NLO properties such as btotal values.
Refinement of the scaling factors applied in this study achieved a weighted RMS deviation of 9 cm-1 between the experimental and scaled frequencies.

Many factors can affect the process of filtration and consequent formation of the filtration cake.
Results and Discussion Tests were conducted with the operating system without mechanical vibration.
These tests were compared to trials conducted in different mechanical vibration tracks: 8, 13, 14, 16, 17, 18, 19 and 21 Hz.
The vibration frequency of 8 Hz has provided 26.5% increase in cycle time of the system without mechanical vibration.
The influences of different vibration values on the properties of the filter cake are mutually independent, and they are decisive for the performance of the proposed system.

Therefore, these pipelines are affected sensitively from various environmental factors and the effects of corrosion on the reliability of pipelines are the most important.
During the aging process, buried pipelines suffer from corrosion that affects the reliability and thus the safe operation of pipeline.
There are several parameters that may affect corrosion and the reliability of pipelines.
Because the protective properties like oxides are improved, as corrosion proceeds, the corrosion rate over time is reduced.
It is recognized that the scattering of the data for wall thickness and yield stress of pipeline for three different corrosion models affects the failure probability significantly.

Process stability in the thin strip casting process of the alloy has been studied, the casting temperature (superheat) was proven to be a key factor influencing process stability and casting strip quality.
Introduction Magnesium and magnesium alloys are considered to be advanced materials for 21st century because of their comprehensive properties such as lower density, high-specified strength and stiffness etc.
All of these characteristics of twin roll cast materials contribute to a significant improvement in their mechanical properties.
The main factors affecting this limit are casting speed and casting temperature.

The uses of polymer materials in new categories of products are only limited by the product properties.
This is a unique way to combine properties from both, inorganic and organic materials in one polymeric network.
UV-absorbing properties.
However, such small molecules have a tendency to migrate out of epoxy networks over time causing a reduction in mechanical properties.
By binding the functional groups on to a nanoparticle which is itself bound into the epoxy resin network, the problem of leaching can be avoided and mechanical properties should maintained.

The correlation between the microstructures and the microwave dielectric properties was also examined.
These changes may directly affect the microwave dielectric properties of the Nd(Co1/2Ti1/2)O3 samples.
The dielectric properties were significantly improved.
Cross, Synthesis and Dielectric Properties of a Cubic Perovskite Material: La(Mg1/2Ti1/2)O3, Mater.
Kim, Influence of ZnO evaporation on the microwave dielectric properties of La(ZnTi)O3, Mater.