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The pulse fatigue testing machine is a device used to simulate the fatigue damage of materials under repeated pulse loading, so as to evaluate the fatigue performance and life of materials.
I. Application Fields
The pulse fatigue testing machine is widely used in fields such as materials science, mechanical engineering, aerospace, transportation, and the automotive industry. It plays an important role especially in evaluating the brittleness, toughness, fatigue limit and other properties of materials. In addition, it is also used for fatigue performance testing in industries such as quality inspection, scientific research, universities, construction, highways, railways, bridges, nuclear power, water conservancy, ports, tunnels, and coal.
II. Working Principle
The pulse fatigue testing machine automatically adjusts and controls the pressure and temperature to make the tested part reach the actual working state, then conducts fatigue life testing, and finally determines the performance of the product. Its core technology lies in the fine regulation of the impact (pulse) system, tuning each pulse to perfectly resonate with the vibration under real road conditions, ensuring that the test conditions accurately reflect the actual situation of vehicle installation.
III. Technical Features
Simulated Environment: The pulse fatigue testing machine can simulate the complex working conditions of vehicles in actual operation, seamlessly integrating the workpiece to be tested into a closed-loop simulated environment that combines pressure and temperature.
Fine Regulation: The machine has the ability to finely regulate the impact (pulse) system. The peak pulse pressure can be adjusted arbitrarily within a wide range of 1.5 to 70MPa, with an accuracy of up to ±0.25%FS.
Intelligent Control: The control method combines the robustness of electro - hydraulic servo and the intelligence of computer control, realizing subtle adjustment of pulse frequency (stepless speed change from 0.01 to 1.5Hz) and personalized customization of waveform design (switching freely between T - shaped wave and quasi - square wave).
User - friendly Design: Test parameters can be set at will; the electric booster pump can stably increase pressure to flexibly meet the unique needs of different workpieces; the test software provides real - time feedback on the test progress, with both fault early warning and abnormal alarm; the automatically generated pressure - time graph intuitively shows the whole picture of the test, and the Chinese - English bilingual report can be printed with one click.
Durability and Sealing: The ingenious combination of the non - welded connection of the system structure and the conical surface sealing improves the durability and sealing of the equipment, meeting the strict requirements of diverse hydraulic systems.
IV. Main Parameters
The main parameters of the pulse fatigue testing machine include the test medium, pulse pressure, pressure control accuracy, pulse frequency, pulse pressure waveform, etc. The specific parameters can be set and adjusted according to actual needs and test standards.
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