Search results

According to our previous work [2, 3], ENR could be used to prepare dynamically cured ENR/PA-12 and ENR/TPU blends with enhancement various properties and fine grain of spherical dispersed vulcanized rubber domains.
This is due to 6PPD is a secondary antioxidant (i.e., amine antioxidant) which is capable of converting the active radicals to be inert products in many steps and a number of radicals.
Moreover, higher number of reactive hydrogen atoms in 6PPD cause higher efficiency to suppress the oxidation process.

EDEM is a discrete element program that has the ability to model entire boundary value problems directly with a large number of particles.
M. [12] put forward modeling method like the spherical particles stacking, such as the cumulative clouds ten goals of the shape of the grain, and a tetrahedron eight goals in the round state of particles.
The third step is to use the external interface import EDEM tamping bank to the simplified model of the system simulation model, EDEM particles in accord with the requirement of the generation factory number of particle, particle shape as state above.

These assessments were made in terms of over temperature and number of maneuvering cycles, of "of-on" type made after an occurrence an electrical erosion volume loss of 80 % from whole volume of pieces, respectively.
Ag-SnO2-Bi2O3 / 90-9.5-0.5 / (MM) 3.50 32 2.45 2.74 8 All types of CM powders present better grain size characteristics against the MM ones, which in turn leads to improved physical and functional characteristics of the final electrical contact pieces.
The life time and heating of the CM and MM electrical contact pieces processed by P-S-R and P-S-E Life time, Number of manoeuvring cycles, x 103 Heating (Over temperature), Accordance with the Standard CEI 947 - 4 - 1:1990.

The heat absorbed into the PCDC can be [1] 'A LV q µ = (10) Since the surface of the PCDC prior to the polishing is at a roughness ε1, there are only a number of asperities in contact.
Eq. (9) now can be rearranged as ( )01 ,,,,,,,, TDECVtLfd εχδµ= (14) Following the Buckingham П theorem in which E, D and t are used as repeating parameters, the relationship in Eq. (9) can be derived in a dimensionless form as       = 0 2 ,,,, 2 , T DD C D VtVD ED L f D d εδ χ µ (15) where Dd=Π1 , which is a dependent parameter, represents the relative removal height over the size of sample; 2 2 EDLµ=Π indicates the effect of heat source and mechanical loading to the mechanical strength of material; Pe VD ==Π χ23 is Peclet number reflecting the scale of sliding velocity in moving heat source on the sample; DVt=Π4 is the ratio of total sliding distance to the size of the sample; DCδ=Π5 represents the effect of particle size and its composition; Dε=Π6 is the relative surface roughness of the sample, and 07 T=Π is the initial temperature.
The Type 1 specimen material contains 65% diamond particles (C = 0.65) with grain size δ ~ 6µm (the rest are SiC and Si), and has an initial surface roughness of ε = 0.7µm.

The effect of the number of effective abrasives, polishing pad's characteristics, chip characteristics and polishing slurry's factors are considered in this model, and the material removal rate is shown as follows: (3) Here ρw is the chip material's quality density, Na is the number of effective abrasives, Volremoved Is the single abrasive’s removal rate, and Ro is the material removal rate caused by the chemical reaction.
In addition, in the abrasive wear model first requires the grains pressed into the surface and then plowed which should be considered.

(a) Journal Title and Volume Number (to be inserted by the publisher) 3 In the case of C2 =0, where the Dit is ∞, the Fermi level at the interface is pinned by the surface state at the value φo above the valence band.
It is believed that atomic size of hydrogen is small enough to permeate into the metal through the grain boundary, and to reach the interface of semiconductor.
It is generally known that the reverse leakage current is reduced as a result of decreasing number of surface state [8], [9].

(5) Where, x[i] = L/v[i], L is the sample length; v[i] is the speed of the first plate sample passing through the sample i of the active cooling zone; m is the sample number of the plate; n is the sample number of the active cooling zone.
To make up the effect of the performance caused by the reduction of the alloy content, the fine-grain strengthen mechanism, the precipitation strengthen mechanism and the phase transformation strengthen mechanism were used.

The grain size after hydrogen decrepitation was less than 100 μm easing hydrogenation/dehydrogenation reactions Structural characterization of samples before and after hydrogenation was made using a Siemens D-5000 diffractometer operating CoKa radiation in reflexion mode.
In fact, both the number and strength of each of the endothermic peaks, as well as their temperature strongly depend on metal composition and hydrogen content.
The main difference in between samples is the number of DSC peaks.

Experimental Investigation A number of welding tests were carried out using a pulsed Nd:YAG laser (Model JK701H, GSI Lumonics) operated in the welding mode.
The weld bead is the product of a number of overlapping spot welds.
The tiny grain could be observed in FZ with invisible HAZ due to the low energy input and short laser action time in a pulsed period.

Limitations in the number of wood, so it is necessary to the development of new alternative materials.
Wheat straw as agricultural and sideline products, annual output accounts for about half of barley grain crops, the past can only be treated by burning, burning process not only pollute the air, but also easy to cause a fire.
Reduce the number of parts, the size, the weight in the design, the optimization design technology, so that the utilization rate of raw materials the highest.