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The crankshaft shown in Figure 1 is a part that our cooperative enterprise meets with in production.It is an important component of the vortex air conditioning compressor,on which it has a spline processing requirement: EXT18z x 0.5 m × 45R x 6 f (number of teeth z = 18, modulus m = 0.5, pressure Angle α = 45 º).
Investigation of work hardening of flat-rolled helical-involute gears through grain-flow analysis, FE-modeling, and strain signature[J].

Different properties show different material number.
[3] ASTM Standard E 112-88, standard Test Methods for Determining Average Grain Size, American Society for Testing and Materials, Philadelphia, 2010

A large number of experiments have been conducted to help the sustainability of glass.
The glass powder with grain size in between 40µm to 63µm was mixed with ball clay and feldspars using ratio 90:5:5.

Wood dyeing can remove colour differences between heartwood-sapwood and earlywood-latewood, and make sure that grain, figure and sense of quality become vivid.
Chinese fir, poplar, eucalyptus and rubber wood are divided into 4 groups, and are numbered.

Carlin Trend gold ores were mainly distributed in the Nevada, Utah of United States and DianQianGui, chuan ShanGan of China,and in the southeast Asia and South America Peru also have distribution.Carlin Trend gold ores are often refractory to conventional cyanidation, for a number reasons:1) the gold is locked up within host sulfide minerals such as pyrite or arsenopyrite; 2) the ore contains carbonaceous compounds which are preg-robbing; 3) the gold is locked up in silicate minerals.
analysis Table 1 Ore single mineral chemical analysis Gold content Sulfide The calcite, dolomite Quartz, Mica Shale Au(10-6) 15.8 0.07 0.26 2.96 Table 2 The mineral elements more analysis results elements Au( g/t) SiO2 S As Fe content（%） 1.5 47.96 0.41 0.49 6.78 elements CaO MgO Al2O3 TiO2 CO2 content（%） 9.23 2.64 10.19 2.26 2.79 3 Mineral composition of the ore Ore by a microscope. atificial placer analysis, X-ray diffraction analysis, scanning electron microscopy (sem) electronic probe component analysis, Ore have carbonate, oxide, sulfide, Portland, elemental elements, There were 15 kinds of minerals, Among them main accounted for 60% of the ore carbonate, Sulfide, oxide and secondary Portland, ore accounted for 0.3%, 17% and 21%, other content is few. 4 The occurrence state of gold By chemical analysis, a microscope, artificial placer analysis, single mineral chemical analysis and scanning electron microscopy (sem) electronic probe component analysis, The gold ore main think fine grain

The DDA method was proposed in 1973 by Purcell and Pennypacker who used it to study interstellar dust grains, and then it was improved by Draine, Goodma and Flatlau[1-3].
For an particle with equivalent radius aeff , N denotes the number of discrete dipole, thus: (9) Numerical calculation and analysis First, we take the cylindrical nano-graphite particles as examples, using DDA method to analyze the characteristics of infrared extinction.

The formula of calculating the screen box centroid is: (6) In the equation: G i, x i, y i stand for the i-th parts or components of the mass and centroid coordinates;n is the number of components or parts.
Wu: Grain and Feed Industry, (2000) No.1, p.15.

Table 1 The simulation results of the tunable filters with pin-diodes switches Number h1[mm] h3[mm] R3[mm] εr fo[GHz] Return Loss[dB] Grain Peak[dB] 1 20 10 12.5 30 1.644 -15.3 5.1 2 30 10 12.5 30 1.643 -15.5 5.3 3 0 3 14.5 30 1.226 -6.5 5.7 4 0 3 10.5 30 1.213 -11.0 5.5 5 0 3 8.5 30 1.199 -21.5 5.3 6 0.3 3 8.5 30 1.275 -26.6 6.4 The return loss and the radiation patterns at 1.275GHz are shown in Fig. 2 and Fig. 3.

At high temperatures, the densification that occurs at the grain boundaries of the particles, led to the formation of a stronger compact structure.
Hardness Distribution 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 Sintering Temperature(ºC) Vickers Hardness Number(HV) Figure 3.

By further detecting of the microstructure , we found that tissue of the high temperature superheater header was abnormal (Fig.3):a large number white ferritic structure in the microstructure massive, which is the main reason for the low hardness, and can reduce the abnormal organization of comprehensive performance indicators.
Because of high composition of stable ferrite Cr, Mo alloy element content in P91 steel, it occurs only in moderate high-temperature response when high temperature tempering, so martensite lath broken sub-grain structure and dislocation network are formatted。