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For after high temperature resistant coating surface coating of tin model coating physical mechanical properties and high temperature resistant, heat insulation temperature difference of performance test, the results indicate that the system of high temperature resistant coating resistant to 400 ~ 500 ℃ high temperature, and has good high temperature resistance, heat insulation performance, etc.
Organic silicon resin type and basic property of the coating of high temperature resistant performance has a very big impact, in addition, the choice of packing and formula optimization can also affect coating of high temperature resistant performance.
This research mainly through the Aladdin reagent (methyl trichlorosilane, phenyl trichlorosilane, dimethyl dichlorosilane) and acetone, toluene and reagent selection, seeking the synthetic organic silicon resin high temperature resistant coating the optimal scheme, to study various experimental factors on the synthesis of organic silicon resin high temperature resistant coating, and the influence of sample and of high temperature resistant coating on the various performance indicators detection.

One of the most important factors which effects dimensional error of work-piece is its elastic property.
This factor is responsible for the workpiece deflection by cutting forces.
Work-piece error induced by cutting force has been investigated less than other factors because of the difficulty in measuring this error [5-8].
Error of measurement affects the obtained function.
Shigley: Mechanical Engineering Design (McGraw-Hill, 1986)

Consequently, the silicon contained in the alloy above the permissible limits in the zone of saturation changes the nature of the alloy micro texture, this adversely affects the office properties of the casting.
The study of the general defects of castings made of heat-resistant nickel alloys produced by lost wax process in the ethyl silicate ceramic molds, showed that the largest reject rate accounted for point defects affecting the cast surface, expressed as a flash during LUM control castings.
Experimental research For the manufacture of ceramic molds with improved physics and mechanical properties and process characteristics necessary for the lost-wax casting production, there was lead a number of scientific researches, during which the composition of the slurry was obtained for making molds.
Ceramic molds and castings properties, manufacturing charges Property denomination Basic Technology Developed Technology [4] 1.
The developed technology allows to produce high-quality ceramic shell molds on the cheap safe aluminium-borophosphate concentrate, and, the physical and mechanical properties are equal to those of ethyl silicate molds, and substantially exceed at knockout, permeability to gases, molds forming rate.

Such a deposited surface can functionalize and reclaim the factors extending their service existence [2].
When metal like steels are hardfaced, the microstructural changes occur in the substrate material especially in the Heat affected Zone (HAZ) and this will consequently influence the mechanical properties and in turn on the service behaviour of the hardfaced component.
Tyagi, Study on microstructure and wear properties of different nickel base hardfacing alloys deposited on austenitic stainless steel, Surf.
[11] Manikandan M, Hari P.R, Vishnu G, Arivarasu M, Devendranath Ramkumar K, Arivazhagan N, Nageswara Rao M, and Reddy G.M, Investigation of microstructure and mechanical properties of super alloy C-276 by continuous Nd:YAG laser welding, Procedia Mater.
[12] Luciano da Silva Ferreira, Karin Graf and Adriano Scheid, Microstructure and properties of nickel-based C-276 alloy coatings by PTA on AISI 316L and API 5L X70 steel substrates, Mater.

The mechanical properties of tool materials: bending strength limit: 1500MPa; compressive strength: 3500MPa; elastic modulus E equal to 610GPa; Poisson ratio μ equal to 0.3.
Figure: Fig.1 Field drum section blanks Fig. 2 Schematic diagram of finite element mesh Because many factors influence the cutting force calculation more complex, combined with the current cutting force calculation formula used is the neglect of temperature, normal stress, III deformation zone under conditions of deformation and friction derived, and the actual cutting conditions vary greatly, it can only be used for qualitative analysis of cutting force, not for the actual calculations.
Based on the above analysis, by cutting the limit in the worst conditions (Fz, Fy, Fx acting on the tip of a little concentrated) to simulate the load, all the constraints imposed by the end of the tool (this does not affect the results).
In addition, the tip position as the biggest stress of serious wear and tear, will directly affect.
Fig.7 shows the minimum safety factor is contact with tip length of 1-2, this tool can also use our on-site destruction of Fig. 8.

The results show that flow stress is significantly affected by both deformation temperature and strain rate, the flow stress increases with increase in strain rate and decreases in deformation temperature during the hot compression process.
Flow stress reflects the deformation properties and the flow stress behaviors are affected by deformation temperature, strain rates and comparative strain during hot deformation [2-4].
Recently, much work has been done on the extrusion and deformation properties of the Mg-Zn-Y-Zr alloy [5, 6].
Fig. 3 Relationship between strain rate and stress for Mg-3.5Zn-0.6Y-0.5Zr alloy Fig. 4 Relationship between peak stress and temperature for Mg-3.5Zn-0.6Y-0.5Zr alloy Zener-Hollomon parameter (Z parameter) is compensatory strain rate factor of the temperature and is the reaction of difficulty level of materials [7, 10].
Meng, Microstructures and mechanical properties of extruded Mg-8Gd-0.4Zr alloys containing Zn, Mater.

Introduction Magnesium alloys have become promising bone implant materials due to their attractive properties, such as biocompatibility, biodegradability and mechanical properties analogous to natural bones [1, 2].
However, magnesium alloys are extremely vulnerable to corrosion in body's fluid, resulting in generate pockets of hydrogen gas near the implant, increase alkalinity and magnesium ions concentration of the embedded surroundings and reduce the mechanical properties of implants prematurely [3-5], which had prevented their further clinical use.
Ding, Properties of fluoride film and its effect on electroless nickel deposition on magnesium alloys [J].
Zhou, Influence of fluoride treatment on surface properties, biodegradation and cytocompatibility of Mg-Nd-Zn-Zr alloy [J].
Zhang, Fluoride influences transduction pathway of transforming growth factor surperfamily members expressed in osteoblast [J].

These factors translate to improved hot formability.
This paper will present the effect of scaling up on the mechanical properties, microstructure, and the hot workability of the alloy from the laboratory scale (12.5 mm) to industrial scale (100 mm).
The use of SPD processed material, therefore, has not adversely affected the measured service properties.
Table 2: Properties after forging and heat treatment Properties after T6 Grain size Stock Material Forging Temp.
Langdon, "The potential for scaling ECAP: effect of sample size on grain refinement and mechanical properties," Mater.

TiO2 coating is applied to provide antibacterial properties.
Meanwhile, the two main factors of TiO2 application as photocatalyst are its chemically inert and low toxicity properties [6].
The photocatalytic properties of TiO2 depends on the crystallinity of the thin film [7].
Effect of TiO2 Coating on Antibacterial Properties.
Zakharieva, “Titanium dioxide thin films: Preparation and optical properties,” J.

In the model, many factors were considered such as liquid metal turbulence, latent heat of phase transformation and material thermo physical properties depending on temperature.
Material properties.
As a result of AZ31B magnesium alloy material under high temperature thermal physical property parameters are difficult to be measured accurately, the existing literature on the physical properties of the material research mainly concentrated in low temperature(room temperature 800˚C),so this paper combining with the existing data with numerical extrapolation method to study[5](Fig.2).
(a) Specific heat capacity (b) Thermal conductivity (c) Density Fig.2 Thermo-physical properties of AZ31B depending on temperature Boundary conditions.
(2) Through the preparation of procedures for considering the pool of latent heat of phase change, the molten pool liquid metal molten pool convection: solid-liquid interface of mobile and thermal properties with temperature changes and other issues, allowing the simulation of actual conditions