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A new type of ferrite and pearlite wheel material(D2) was developed according to the serving characteristics of high-speed train wheel. The wear resistance, contact fatigue resistance and thermal damage sensitivity were investigated and compared with commonly used ER8 wheel material (D1). The results show that the wear resistance is equivalent to that of D1, the contact fatigue resistance and the...
On the workplace of paper authors’, the experimental studies of the fatigue behaviour and fatigue resistance of several new types of steel mechanical connections have been performed recently. The problems of mechanical connections mentioned above have been solved in the past within the projects of the development of new types of advanced temporary steel bridges and footbridges, with the support of...
This paper studied the wear behavior of plant abrasive to 60Si2Mn steel on wear test machine by different heat treatment processes, the samples' microstructures were analyzed by a metallurgical microscope, the samples' worn surface morphology was observed by a scanning electron micro-scope(SEM). The results show that: under the experimental conditions, 60Si2Mn steel abrasive wear is dominated by the...
This paper studies the twist vibration of the branch closed system in the main transmission system of the vertical rolling mill, by means of the method of the theory and measurement, reason of negative moment of two roller in rolling steel is found. The research result shows that the theoretical calculation is consistent with the spot measurement.
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