Rolling contact fatigue testing machineIt is a core equipment used to simulate the fatigue failure process of components such as bearings, gears, and rails under cyclic contact stress, and evaluate their resistance to peeling and pitting corrosion. It is widely used in quality inspection and scientific research in industries such as mechanical manufacturing, automobiles, and rail transit.

Function:

Simulate actual working conditions: By applying specific loads and speeds to the test sample through the test head, simulate the rolling contact state of components such as gears, bearings, and wheel rail during continuous operation, including pure rolling, pure sliding, and rolling sliding combination working conditions.

Fatigue life assessment: Using the number of cycles (or time) during which cracks, fractures, or surface peeling occur in the specimen under cyclic loading as an indicator, quantifying the fatigue life of the material and providing durability basis for component design.

Failure mechanism research: Combining online monitoring systems, analyze the process of crack initiation, propagation, and peeling, and reveal the failure mechanism of materials under composite stress.

　　Rolling contact fatigue testing machineKey points of operation:

Sample preparation: Select suitable shapes, sizes, and materials of samples according to testing requirements, and process them according to standard methods to ensure that the surface roughness meets the requirements.

Equipment inspection: Before operation, check the integrity of the equipment and confirm that the power supply, instruments, lubrication system, and safety devices are functioning properly.

Parameter setting: Set parameters such as load size, frequency, waveform, speed, and ambient temperature according to testing standards.

Test monitoring: After starting the equipment, closely observe the deformation of the sample, crack initiation, and equipment operation status. If any abnormalities are found, stop the machine immediately to troubleshoot.

Data processing: After the test is completed, the recorded stress, strain, displacement and other data are processed to calculate fatigue life and reliability indicators, and evaluate whether the material properties meet the design requirements.