High temperature fatigue testing machine | Selection+core parameters, thoroughly understood in one article

In the field of material testing, high-temperature fatigue testing machines are important equipment for evaluating the special environmental tolerance of materials, widely used in key industries such as aerospace, automotive manufacturing, and new energy. Many practitioners tend to fall into misunderstandings when selecting and using, so today we will use plain language to break down its technology, application value, and selection points.

The product technology logic of the high and low temperature fatigue testing machine simulates the dual tests of temperature alternation and cyclic load faced by materials in practical use, and reproduces the fatigue failure process of materials through the principle of alternating stress. Its composition mainly includes a loading system, a temperature control system, a data acquisition system, and a testing machine body, which work together to ensure the accuracy and reliability of the test data.

Unlike conventional fatigue testing, testing under high and low temperature conditions requires very high equipment accuracy. High quality equipment requires precise and high loading control, supporting various waveforms such as sine waves and triangular waves. At the same time, the temperature control range needs to cover special scenarios, ranging from -196 ℃ to 500 ℃, and the temperature control accuracy needs to reach 0.1 ℃ in order to truly simulate the performance of materials under actual working conditions such as high altitude and low temperature, and high engine temperature.

It has a wide range of application scenarios, including testing the fatigue resistance of engine turbine blades in the aerospace industry, verifying the durability of turbocharger rotors in the automotive industry, testing the stability of battery materials under high and low temperature cycles in the new energy field, and even conducting material performance research in universities and quality inspection units.

When selecting, in addition to paying attention to temperature range and loading accuracy, it is also necessary to pay attention to the manufacturing standards, test compatibility, and customization capabilities of the equipment. Taking the FLPL-G series high-temperature fatigue testing machine from Fule Instrument as an example, its core performance highly matches the industry's core requirements and can accurately meet various high-temperature fatigue testing scenarios. This series of equipment focuses on testing the tensile and compressive fatigue performance, fracture toughness, crack propagation rate, etc. of metal materials and composite materials under high temperature environments of 300 ℃~1600 ℃. It can simulate the fatigue durability life limit of materials under different high temperature conditions.

The equipment manufacturing strictly follows the Q/FPL7050-2016 "Fatigue Testing Machine Manufacturing Standard Method", and the test method complies with multiple international high-temperature tensile and compressive fatigue testing standards such as GB/T, ASTM, ISO, DIN, JIS, etc. It is widely used in aerospace, university research institutes, quality inspection units and other fields. The specifications and models cover the FLPL204G, FLPL504G, and FLPL105G series. The rated test force can be selected from 0~20KN, 0~50KN, and 0~100KN according to requirements, with an accuracy level of 1/0.5. The force measurement range is 0.2% -100FS, and the relative error of the test force indication is ≤ ± 1% (or ± 0.5%). In addition, the equipment supports a selectable fatigue test frequency of 0.01-100HZ, with an upper and lower clamp eccentricity of ≤ 8% and a fatigue amplitude range of ± 75MM. At the same time, corresponding technical specifications can be customized according to actual fatigue test needs, providing reliable technical support for scientific research and production.