Search results

Artificial sand’s production can produce a certain amount of aggragate micro-fines, rational use of micro-fines will be an important factor about affecting application of artificial sand.
Different artificial sand has different mineral composition and microstructure, which fundamentally makes different sand have different properties.
The cement properties are listed in Table 4.
Effect of microfines in manufactured sand on properties of various strength grade concretes, Concrete, 2008（7）：51~54.
Influence of Mass Fractions of Limestone Powder on Mechanical Property and Durability of Concrete, Journal of Building Materials, 2009, 12（3）：266~271.

Optimizing of Electric Discharge Texturing Parameters of Rolls of the Rolling Mill of Steel Sheets Evin Emil1,a, Kmec Jozef2,b, Fechová Erika2,c 1Technical University of Kosice, Faculty of Mechanical Engineering, Department of Technologies and Materials, Mäsiarska 74, 042 01 Kosice, Slovakia 2Technical University of Kosice, Faculty of Manufacturing Technologies with a seat in Presov, Department of Mathematics, Informatics and Cybernetics, Bayerova 1, 080 01 Presov, Slovakia aemil.evin@tuke.sk, bjozef.kmec@tuke.sk, cerika.fechova@tuke.sk Keywords: Statistical methods, Roughness, Number of peaks, Reliability indices, Working cylinders, Rolling mills.
Microgeometry of the surface of galvanized sheets for superficial parts of cars is one of the decisive factors affecting the appearance of the surface after painting and stampability of steel sheets.
It is necessary to meet the requirements not only for the mechanical properties, but also ensure a perfect surface of zinc coating and its adhesion to the base materials.
It goes from roughening the surface of the work rolls by mechanical blasting of fine-grained granules (SBT - Shot Blast Texturing) to roughening work rolls by sparking (EDT - Electric Discharge Texturing), laser beam (LBT - Laser Beam Texturing), electron beam (EBT - Electron Beam Texturing) and electrolytic chromium (PRETEX - Preussag Texturing) [2, 3].
Nine: The interaction between electrogalvanized zinc deposit structure and the forming properties of sheet steel.

Introduction Over the last few decades, the demand for carbon fiber reinforced plastics (CFRPs) is increased compared to other traditional metals owing to their superior mechanical and physical properties.
In his regard, cutting speed and feed rate are significant factors that affect the machined surface quality and tool wear [6].
As described earlier, these factors are responsible for the generation of higher feed Fx and normal Fy forces.
Bouncing-back (mm) = -0.01475 - 0.000077*A + 0.000189*B + 0.05200*C (1) Summary The investigation revealed that C, BC, and B are the most significant factors affecting the feed force and normal force due to the increase in chip thickness area.
The depth of cut C, the interaction BC, and feed rate B are the most significant factors that affect the bounce back.

Mechanical components.
Taking material of NIMC (not including nuclear fuel and related material) for example, through the analysis and discussion of the standard or norm, status quo of supply and research, production capacity and existing problems of material of NIMC in China, the major obstacles and factors restricting development of nuclear power plant are found out, and the countermeasures and suggestions are also introduced to accelerate the localization progress of key NIMC in this paper.
Because there is no nuclear power plant overall design right and intellectual property rights of nuclear equipment, nuclear power equipment for material selection and fabrication, standard system construction has no discourse.
(c) To accelerate the life assessment of life of aged material During the operation of nuclear power stations, components and structure will face the aging problem, which seriously affect the safety and reliability of nuclear power plant.
American society of mechanical engineers, 2004 Edition.[11] 杨武.

Properties of SBS modified bitumen membranes used in underground engineering and coastal buildings would also be affected by chemical corrosion.
Table 1 Physical properties of bitumen.
Physical Properties.
Mechanical performance of lap joins of flat roof waterpooofing membrans subjected to artificial weathering [J].
Experimental study of waterproof membranes on concrete deck: Interface adhesion under influences of critical factors [J].

This review describes various properties of aluminum-iron alloys including mechanical properties and electrical conductivities, as well their relation to the Fe contents.
Especially, Fe promotes the mechanical properties without significantly sacrificing the electrical properties of aluminum, as it exceeds to 2 wt. %.
The effect of Fe content on mechanical properties and electrical conductivity of Fe-containing Al alloys is discussed.
By taking advantages of unfinished interactions, incomplete diffusion and precipitation, and other factors, nonequilibrium microstructure containing specific phases is obtained, which is thermodynamically unavailable in equilibrium.
Mechanical Properties of Al-Fe Alloys.

It is found that the average power factor of Cu2.995Co0.005SbSe4 was increased by 30% compared with the pure sample, indicating that Co doping had a great effect on the electrical properties of Cu3SbSe4.
Since the factors are not independent of each other, it is almost impossible to increase PF without increasing κe [8].
The power factor is shown in Fig. 3c.
Zhao, Synthesis and Thermoelectric Properties of ZnO/Cu2SnSe3 Composites, Mater.
Kurosaki, Thermoelectric properties of Ag1-xGaTe2 with chalcopyrite structure, Appl.

The extrusion width depends on the properties of the plastic material; it is about 1.2 ÷ 1.5 times of the nozzle diameter [6].
In the demand of optimization of the forming parameters, a quadratic experimental design with the polynomial regression equation is selected with the following general form: y=bo+i=1kbixi+i=1kbiixi2ifactor Central Composite Face-Centered Design is selected because it has some good properties such as: ability to describe well the properties of research objects in the design space and having contains full factorial design of 3 factors inside.
The count of tests to be conducted is 17 with 3 factors are considered.
An experimental matrix including three coded factors is illustrated in Table 3.
Adhiyamaan, “Investigation on the effect of fused deposition modeling process parameters on flexural and surface roughness properties of PC-ABS blend”, International Journal on Recent Technologies in Mechanical and Electrical Engineering 2(8), 2015

Synthesis and mechanical property evaluation of Ti-TiAl metal-intermetallic microlaminate composite Li Ma 1, a, Haibo Wang1,b, Zhaohui Hu2,c 1 College of Physics and Electronic Engineering, Taizhou University, Taizhou 318000, PR China 2 Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, PR China a mali2013@163.com, bhb.wang_hit@163.com, chuzhao_hui@163.com Keywords: Laminated composite; Ti/TiAl; EB-PVD; Mechanical properties Abstract.
The microstructure and various properties have been explored.
Intermetallic-based systems have the potential to exhibit high temperature properties superior to superalloys for these applications [1-3].
In the present work, the synthesis and mechanical properties of Ti/TiAl microlaminate sheet have been studied.
Correspondingly, the obvious stage of plastic deformation in stress-strain curve of micro-laminate indicates the mechanical property has been improved.

Based on different factors, the studies have shown that chewing forces don’t have same values in the oral cavity (e.g. higher occlusal forces for male human subjects than female persons; higher biting forces for the molar zone compared to anterior teeth, etc.) [4].
For a long-term clinical success the resin-based restorations have to assure a high resistance to different factors, including strength of the remaining tissues after caries removal [3], cavity design [5], chemical and mechanical stresses developed in the lateral zones of the oral cavity [3] and distribution of masticatory forces on the periodontal ligament (PDL)-bone structures [5].
New improvements in the adhesive dentistry, have recently introduced a new generation of hybrid materials, a self-etch self-adhesive flowable composite resin, which combines the resin luting cements’ properties [7] and act as a liner material and a self-etch one-step bonding agent [6,8].
The following null hypotheses were tested: 1) the mechanical in vitro model affects the adhesive-tooth sealing performance and 2) there are significant differences between the adhesive techniques regarding marginal integrity.
Ilie, In vitro comparison of mechanical properties and degree of cure of a self-adhesive and four novel flowable composites, J Adhes Dent. 15 (2013) 1229–1236