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However, the flammability of Li fiber and polyester and the application of composite materials are limited, so special resistance properties are needed.
Compared with other materials, the advantages of β-CD and APP to jute / PP composites are studied, which are strong flame retardancy, good mechanical properties, thermal stability and surface morphology; the experimental method is to use surface dust removal method, and the effect of flame retardant on the mechanical properties of jute / PP composites is obtained through research.
Finally, the experimental results show that the method of adding flame-retardant layer in the composite is very effective in heat transfer isolation, and the method is used on the basis of the mechanical properties of the materials.
References [1] Tao Yu, Tuerdi Tuerhongjiang, Cong Sheng, Yan Li, Phosphorus-containing diacid and its application in jute/poly(lactic acid) composites: Mechanical, thermal and flammability properties, J.
The flame retardancy and mechanical properties of jute/ polypropylene composites enhanced by ammonium polyphosphate/polypropylene powder.

The mechanical and chemical driving forces have still to be accurately evaluated and the role of each one identified.
Notwithstanding the studies on mechanical surface treatments such as cold rolling or shot peening [3,4], the original idea of the author was to design hollow mechanical components, made of steel or light alloys, with hardened compressive residual stresses protected surfaces.
These are preliminary results and a much more expensive and time consuming test campaign is going on because the step loading technique might affect the results due to the not appropriate time of exposure to the aggressive environment.
Oechsner, “Corrosion properties of polished and shot-peened austenitic stainless steel 304L and 316L with and without plasma nitriding”, [4] S.
Vergani, “A Numerical Procedure for Shot Peening Optimisation by Means of Non Dimensional Factors”, International Journal of Materials & Product Technology, Inderscience Enterprises Ltd, Genève, Switzerland, Vol. 15, Nos. 1/2, 2000, pp. 91-103

As a consequence, the mechanical [10,11] and even the aesthetic properties [12] of Y-TZPs are affected.
The sintering condition is a predominant factor influencing both the mechanical properties and LTD behaviour of 3Y-TZPs.However, the mechanism was not well studied and different manufacturers produce dental 3Y-TZP materials at different sintering conditions.
However, more works needed on concluding the ageing mechanism and other determining factors of ageing in 3Y-TZP ceramics.
Ban, “Reliability and properties of core materials for all-ceramic dental restorations,” Jpn.
“Effect of Air and Argon Sintering Atmospheres on Properties and Hydrothermal Aging Resistance of Y-TZP Ceramics,”.J.

Factors Influencing the MTC and its realization methods have always been of concern to many researchers.
Afterwards, they used molecular dynamics simulation method to study the MTC and the influencing factors.
Yuan and his colleagues using diamond cutting tool to machine aluminum alloy material suggest that the MTC has a relationship with edge radius, material properties, the cutting process and so on[3].
It pointed out that the MTC is related to the actual cutting parameters and changes with edge radius, the cutting parameters, and the material properties.
The DMTC Effect on the Surface Quality There are many factors affecting surface roughness, such as specific processing parameters, surface residual height, the MTC, elastic recovery, different phrases of burr height, and so on.

However their mechanical properties and tribological properties are still lower than that of commonly applied materials.
Mechanical properties were evaluated by birnell hardness test in stir zone.
Tensile mechanical properties and failure behavior of FSP modified Mg-Al-Zn and dual phase Mg-Li-Al-Zn Alloys.
Microstructural and Mechanical properties of Al-Fe in situ Nano composite produced by friction stir processing.
Microstructure and mechanical properties of friction stir welded joints of AC4A cast aluminium alloy.

FEM Analysis of Sheet Incremental Forming Process Liu Jie School of Mechanical & Electrical Engineering, Shenzhen Polytechnic, Shenzhen, China liujie@szpt.edu.cn Keywords: sheet incremental forming, dieless forming, FEM.
FEM SIMULATION OF THE FORMING PROCESS As the sheet metal layered plastic forming process is rather complicated and the parameters and tracks is difficult to be selected by trial process, how to choose feasible parameters is the key factor for an ideal workpiece.
Unlike the traditional prototype of single cycle pulling forming, the layered plastic forming prototype simulates the layer forming process on the basis of the material property.
Factors affecting the quality of workpiece are very complicated.
References [1] Yoon SJ and Yang DY, Investigation into a new incremental forming process using an adjustable punch set for the manufacture of a doubly curved sheet metal, Proceedings of the Institution of Mechanical Engineers Part B, Journal of Engineering Manufacture, Vol.215, Issue 7, pp.991-1004, 2001

When the humidification reached 250mL/h, the spinning process was adversely affected and quality of yarn decreased.
It was revealed that the moisture treatment improved the friction properties, conductivity and flexibility of the fibers.
Table 1 Parameters in the spinning process Yarn number[tex] Twist factor[α] Roller gauge Drafting ratio at back zone Spindle speed [r·min -1 ] 22.5 390 18*28 1.15 5000 Equipments Fig. 1 Schematic diagram of the humidification device The schematic diagram of the humidification device is shown in Fig. 1.
Yarn hairiness The yarn hairiness was measured by using the Model YG172 hairiness tester (Textile Mechanical & Electrical Co., Ltd.
Yarn comprehensive quality Many factors were involved when evaluating the yarn general propertied.

The main physical and mechanical properties of mudstone are shown in Table 1.
(2)Use a variety of technical measures to reduce the effects of various factors on the anchor rod creep.
For example, the moisture content and temperature control etc. will affect the creep.
Therefore, survey, design and construction must take into account all aspects of these factors.
Therefore, survey, design and construction must take into account all aspects of these factors.

Due to the complexity and the highly non-linear nature of vehicle crash affecting occupants, much work still remains to be looked into.
Contact definitions are assigned between the dummy and the CRS with a coefficient of friction of 0.2 and damping factor of 0.25.
The seat buck frame is made of rigid material property to avoid deformation during impact.
Shell elements having identical material properties as the foam insert is used for quasi-damping.
Crandall, Factors leading to crash fatalities to children in child restraints, In: Annual proceedings/Association for the Advancement of Automotive Medicine, vol 47, 2003, pp. 343-359

In order to enhance the mechanical properties of copper joints, FSW has been regarded as an effective welding method for the joining of copper.
The grain size of the nugget zone is determined by two major factors.
Hardness of samples is in close relation with two different factors.
Effects of friction stir processing on mechanical properties of the cast aluminum alloys A319 and A356.
Effect of welding speed on microstructure and mechanical properties of friction stir welded copper.