Common faults and solutions of high temperature flexural testing machine

In the field of material mechanical properties testing, the high temperature flexural tester is a precision testing equipment used to evaluate the flexural properties of materials under high temperature environments. This tester needs to run for a long time under high temperature environments, so it is inevitable that some faults will occur. Timely discovery and correct handling of these faults are particularly important to ensure the accuracy of test data and the service life of instruments and equipment. In this article, HEATE Xiaobian introduces the common faults of high temperature flexural testers and corresponding treatment methods.

Common faults and treatment methods of high temperature flexural testers

1. Temperature control system failure

The temperature control system is the core component of the high temperature flexural tester, and its normal operation directly affects the reliability of the test. Common faults include large temperature fluctuations, slow heating rate, and temperature overheating.

Treatment method: Check whether the heating element is aging or damaged, check whether the temperature sensor has too large accuracy deviation, and check whether there are problems with the control system software and hardware. If necessary, replace the relevant components and recalibrate the system. At the same time, pay attention to maintaining the cleanliness of the furnace to avoid impurities affecting the heat transfer performance.

2. Loading system failure

The loading system is a key component for applying the test load, and failures will affect the accuracy of the test results. Common faults include loading rod jamming, unsmooth movement, load reading drift, etc.

Solution: Check whether the loading rod is worn or contaminated, clean or replace the slider and guide rail. Check the line connection and calibration status of the loading sensor. For loading rod jamming, try adding high-temperature lubricant. Ask professionals to perform system maintenance and debugging if necessary.

3. Control system failure

The control system integrates the operation interface, data acquisition and test control functions, and its stability is particularly important for the test. Common faults include system freeze, data loss, communication interruption, etc.

Handling method: Check whether the control system hardware and software have compatibility and stability issues, and perform necessary upgrades and maintenance. Check the available space and normal operating status of the data storage device, optimize the system settings, and ensure long-term stable operation.

4. High temperature cavity damage

The high temperature cavity is a closed cabin for high temperature tests, which is prone to damage in high temperature and high stress environments. Common faults include damage to the observation window, leakage caused by seal failure, etc.

Handling method: Regularly check the status of consumables and spare parts inside the cavity and replace them in time. Check whether the thermal expansion and contraction deformation inside and outside the cavity is too large. Maintain the integrity of the cavity seals and replace aging and damaged seals in time.

5. Electrical system failure

The electrical circuits and components in the high temperature test machine are easily aged or damaged due to excessive temperature. Common faults include circuit breakage and component burnout.

Handling method: Check the insulation of electrical circuits regularly and deal with worn and damaged circuits in time. Check whether electrical components have risks such as overheating and leakage. Aging or damaged components should be replaced in time.

The common faults and handling methods of high temperature flexural testing machines have been introduced to you. In addition, good preventive maintenance is the key to avoiding the above faults. It is recommended to formulate a periodic inspection and maintenance plan and strictly abide by the instructions and precautions for use of the equipment. Once a fault occurs, it is necessary to conduct timely investigation and analysis and take targeted treatment measures. Only by ensuring the reliable operation of the high temperature flexural testing machine can accurate test data be obtained to provide strong support for material performance evaluation.