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It will also make the casting produce defects such as peeling and cracks when used, seriously affecting the service life of the casting.
It affects the mechanical properties of cast iron, especially the hardness, with measurements showing the hardness value to be up to 92 HRC.
Furthermore, the pig iron of the arsenic alloy structure can also affect the formation of carbides [11].
The main factors of the occurrence of cracks are: process equipment, a sand mold and sand core, the pouring system, the unpacking temperature, pouring temperature, the pouring process, etc..

Pretreated 304 stainless steel as substrate can gain better properties of carbon nanotubes.
Based on the fact that CNTs combine novel mechanical, chemical, and electrical properties, they are expected to be applied as materials in future devices, potential applications include adsorbents [2], field emission display [3], nanoelectronic device [4], sensors [5], and catalyst [6].
Different speed of thermal conduction is the main decisive factor in this experimental.
High-properties carbon nanotubes can be synthesized by this method.
Sampling substrates and their sampling locations in flame can decide the properties of products.

It has a big reproductive capacity, so several researchers ever used thermal treatment, controlled-environmental treatment, mechanical treatment and biological control treatment to inhibit Mikania micrantha growth.
The growths of plants are generally affected by temperature, soil and moisture effect, so several researchers for the prevention using chamical treatment, controlled-environmental treatment, mechanical treatment and biological control treatment to inhibit Mikania micrantha growth [4-8].
Suitable culture conditions and a good nutrition are also important factors to consider while growing microorganisms.
Results and discussion The properties of Mikania micrantha were shown in Table 1.
Table 1 Properties of Mikania micrantha A B leaf stem leaf stem Moisture content (%) 90.65 27.02 Alkaloids (mg) 0.52 0.54 0.51 0.53 Cellulose (%) - 40.40 65.40 Lignin (%) 30.90 23.90 A: fresh of Mikania micrantha, B: Dried of Mikania micrantha.

PS Fig. 1 - Scheme of measuring of the dynamic characteristics of the hydraulic generator of mechanical pulses: 1 - hammer head, 2 - wave guide 3 - tool 4 - cocking cavity 5 - accelerating cavity 6 - sleeve, 7 - control valve spool, 8 - hydraulic motor, 9 - throttle, regulating fluid flow in the hydraulic motor, 10 - pressure tank, 11 - rod, 12 - tube, 13 - measuring coil, 14 - oscillograph, 15 - polarizing coil, 16 - polarizing coil power supply , 17 - pressure reducing Valve Technical characteristic of the hydraulic pulses generator Shock energy, J…………………………………….60...300 Adjustment range of shocks frequency, Hz……..……3...40 Pressure of process fluid, МPа ………………………….16 Flow of process fluid, l/min ………………………..……50 Maximum capacity, kW…………………………….……8.5 Mass, kg…………………………………………….…… 90 Overall dimensions, mm……………………220´ 950´ 295 Metal consumption, kg/J …………………………..……0.3 Efficiency…………………………………………..……0.6 To determine the change of hammer head speed during motion
The length of the measuring coil 13 shall be greater than the operating stroke of the hammer head by factor of 1.5.
Fig. 4 - Scheme of measuring of the dynamic characteristics of the electric generator of mechanical pulses: 1 - body, 2 - crank shaft, 3 - rod, 4 - piston-rod 5 - working pneumatic chamber, 6 - hammer head 7 - wave guide 8 - axle-box, 9 - triangulation laser sensor, 10 - power dog, 11 - stand, 12 - direct the laser beam 13 - reflected laser beam To determine the instantaneous coordinate of hammer head displacement by triangulation method, instead of wave guide with deforming tool, it is necessary to install waveguide 7, having a longitudinal opening for passage of the laser beam from triangulation laser sensor 9, installed within the power dog 10, disposed on fixed stand 11 of the unit for mechanical hardening.
Technical specification of electric generator of mechanical impulses Maximal shocks energy, J……………………… 25 Shocks frequency, Hz……………………………23.3 Press force, at least, N………………………… 160 Power consumption, kW…………………………1.5 Useful voltage, V…………………………... 220 Useful frequency, Hz…………………………… 50 Overall dimensions, mm…………………………475×120×235 Weight (without cable and operating tool), kg… 15 Metal consumption, kg/J …………………………0.6 Efficiency…………………………………………0.4 As a result of performed tests, the indicator diagram of hammer head position (fig. 5), by which the momentary velocity of hammer head was defined, including the one that prior to shock nwas obtained.
Properties and Technology for Quasi-Composite Blanket Using Natural Reinforcement of the Metal by Strain Affected Areas, Journal of Nano and Electronic Physics. 5, 4 (2013) 04010.

Current density is the third major technological factor that affects the kinetics of formation and structural parameters of PS.
Moreover, under special conditions, enhancement factors of about 14 orders of magnitude, as compared with conventional non-resonant RS, can be achieved [50].
These factors make nanovoids substrates perfect for studying SERS phenomena.
Mechanical properties of Cu films based on PS.
Zabila, Synthesis and Properties of Ni Nanowires in Porous Silicon Templates, in Nanowires: Synthesis, Electrical Properties and Uses in Biological Systems (ed.

Motor vibration is caused by many influencing factors like the motor structure and operation, the principle is very complex, involving acoustics, mechanical, electrical and other fields.
Modeling In this paper, according to the actual size of the testing machine, the finite-element motor’s model was set up after simplify any secondary factor.
The material properties of different part of the motor is showed in table 1.
The Material Properties of the Different Part of the Motor Modulus of elasticity[Gpa] Poisson’s ratio Density[kg/m3] Shell, feet and end cover 115 0.25 7.0×103 Salient pole of steel corn 152.1 0.30 1.377×103 Core yoke 152.1 0.30 7.293×103 rotor 205.8 0.28 7.8×103 Rotor bearing 20 0.28 6×103 Fig.1 Simplified model.
So, if we want to change the natural frequency of the first step via change the length of the inclined plate, we can increase 12mm to the inclined plate, or we have to increase 30mm where it is effective, and then the center of gravity of the motor will high enough to affect the stability of the motor.

But the common mechanical cleaning could only reduce 50% of the ash.
The properties of the sample are shown in Table 1.
One part of additive adsorbed released alkali physically, of which the physical and chemical properties had not been changed.
The compound detected by XRD was confirmed by a database of compounds with known properties.
The ash melting point was affected by two factors.

Introduction Double eccentric semi-ball valve, with independent intellectual property rights, is created to solve the conversion of "gas - solid" or "liquid - solid" in two mixed flow medium.
The grinding precision and surface quality of the valve core should be exactly controlled because they have the direct affect on the reliability of the valve seal.
Over the years, the industry of the valve grinding process, is assisted by a simple mechanical grinding method with large labor and costs involved.
Track textured patterns is greatly influenced by the sine wave swings which is the main factor to influence the roughness and roundness.
Mechanical Science and Technology for Aerospace Engineering. 2009（5）：652-656 [5].

The closer of these two parameters, that is, δR is close to 1, the smaller of solubility effect factor B, and the greater of the penetration index.
If we consider the best cost and penetration resistance, the pigment volume concentration should be close to CPVC; while the anti-tarnish and gloss properties considered, the pigment volume concentration shall be far off less CPVC.
First, the wetting property of the linseed oil to the pigment is different from that of the resin.
Obviously and strictly, the CPVC value of mixed pigments cannot be simply added, but their disparity is not great, especially the CPVC data from density method, it does not affect its use in formula development. 2.3 The anti-solvent properties of actual formulation F51/amine curing agent as the resin system, pigments and fillers are mixed of talc, mica powder and iron oxide red with 57:29:14 in volume.
Then the different formulations of different pigment volume concentration were formed and their mechanical properties and resistance to solvents were tested and listed in Table 4: Table 4 The comparison of actual performance of anti-solvent epoxy coatings Number 1# 2# 3# 4# 5# PVC 0.126 0.252 0.326 0.39 0.454 Adhesion (grade) 2 1 1 1 1 Bending (mm) 5 3 1 1 1 Impact (cm) 25 40 50 50 50 Resistance to methanol Blistering in a week Blistering in a week Intact for a year Intact for a year Intact for a year Resistance to acetone Blistering in a week Blistering in a week Blistering in a month Blistering in a month Intact for a year As can be seen from Table 4, when PVC is 0.326 or above, or the pigment volume concentration is above λ = PVC / CPVC = 0.326/0.524 = 0.622, the coating has better physical and mechanical properties, and resistance to methanol can last for more than one year.

In the theory of thin shells, these displacement components neglected: ; ; ; ; (4) , (, (, where - the principal radii of the curvature of the median surface of the shell; the corrective components in the expressions for transversal angular deformations contain factors .
But, as shown by the analysis of the obtained basic equations, the most acceptable are just Legendre polynomials, since they give the simplest equations precisely because of their properties.
The solutions of these equations systems are as follows: , ; , (17) ), where - MGP, which depend on the mechanical characteristics and thickness of the shell; - values that depend on the mechanical characteristics, thickness and curvature of the shell.
Consequently, the curvatures of the shell do not affect the vortex BE and the equations coincide with the equations for the plates.
This means that the curvature of the shell affects the interdependence of the internal SSS and the potential BE.