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1. The performance index analysis - the plastic tubePlastic refers to metal materials under loading, the plastic deformation (permanent deformation) and does not destroy the ability.2. The performance of the square tube - hardness index analysisThe pointer to the hardness was measured degree of hard and soft metal materials. At present in the production of measuring hardness is pressed into the hardness of the most commonly used method, it is to use a certain geometry head to a certain load tested down into the surface of the metal material, according to the degree by the determination of the hardness value.The commonly used methods are brinell hardness (HB) and rockwell hardness (HRA, HRB, HRC) and vickers hardness (HV) and other methods.3. The performance index analysis of square tube - fatigueDiscussed earlier strength, plasticity and hardness are Pointers on the mechanical properties of the metal under the action of static load. In fact, many machine parts are working under cyclic load, under the condition of the parts will get tired.4. The square tube performance index analysis and impact toughnessWith great speed of load acting on the object known as impact load, the metal's ability to resist damage under impact load is called the impact toughness.5. The performance of the square tube - strength index analysisIntensity refers to the metal material under static loading resistance destruction (excess plastic deformation or fracture) performance. As a result of the action of load way has the form such as tensile, compression, bending, shear, so the strength also divided into tensile strength, compressive strength, bending strength, shear strength and so on. Always have a connection between various strength, more commonly in use in the strength of the tensile strength as the most basic pointer. Article Tags: Performance Index Analysis, Square Tube, Performance Index, Index Analysis
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