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Details of the mechanical properties of small rollers

 
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MessagePosté le: 25/10/2016 01:33:44    Sujet du message: Details of the mechanical properties of small rollers Répondre en citant


The mechanical properties of small roller including: strength, ductility, hardness, toughness, impact resistance and fatigue limit several times and soon.


1) Strength refers to the metal resistance to permanent deformation and fracture under loads.As action model has the form such as tensile,compression,bending, shear. It is also divided into tensile strength, compression strength, bending strength, shear strength. Between various strength there often some connection. Generally tensile strength will be (tensile test, the maximum tensile stress before pulling off ) as the basic strength index.


2)Plasticity means the ability to produce the plastic deformation (permanent deformation) without disrupting.


3) Hardness is a indicator to measure the hardness of the metal material.The most commonly used determination of the production method is the indentation hardness method, which is given geometry indenter pressed into the surface of a metallic material to be tested under a certain load, according to the degree pushed to measured hardness value .


4)Fatigue limited. Strength , ductility, hardness previously discussed are the mechanical performance that metal under static loads. In fact, many machine parts are working under cyclic loading, part under such conditions will produce fatigue.





The small roller can be used in what respect

Small roller in urban landscaping becoming more and more common, where does the small roller has been used ? How about its effect?


1.Applications in landscape, residential landscape, golf course. For landscape area, the large roller does not flexible enough.The design style is paid more attention to the construction of landscape , not all places need compaction, construction of golf courses too, so small roller is needed.


2.Sidewalk compaction, conservation road. It is clearly inappropriate to driving a large roller for highway maintenance . Like laying sidewalks, the ditch edge compaction, and compaction of asphalt road corners, you need to use a small roller.


3.Narrow construction sites or weight sensitive occasions, small rollers are able to complete the efficient and flexible operating requirements, its role is irreplaceable.


4.During highway pipeline or abutment filling period, the small and large roller compactor can operate together. Because of the small rollers have large water tanks to avoid carrying water, saving work time.




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MessagePosté le: 25/10/2016 01:33:44    Sujet du message: Publicité

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