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Mechanical properties of small roller |
fengqingxue
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Posts: 4185
Location: newyork
Joined: 18.01.16 |
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<p>Mechanical properties of small roller: strength, ductility, hardness, toughness, impact resistance and fatigue limit several times and so on. </p>
<p>1） Mechanical properties of small:roller 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. </p>
<p>2）Mechanical properties of small lasticity means the ability to produce the plastic deformation (permanent deformation) without disrupting。</p>
<p>3） Mechanical properties of small: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 . </p>
<p>4）Mechanical properties of small: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.</p>
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