Maintenance methods and precautions for high temperature load soft creep tester

In the refractory, ceramic, glass and other industries, the high temperature load-soft creep tester is a key equipment for evaluating the load-soft performance of products under high temperature. This instrument needs to work for a long time under extreme high temperature conditions, and has high requirements for the heat resistance, precision stability and other aspects of the instrument itself. In order to ensure the accuracy of the test data and the service life of the instrument, the maintenance and maintenance of the high temperature load-soft creep tester becomes more important. In this article, the editor of Hut Instrument will introduce the relevant methods and precautions for maintenance.

Maintenance methods of high temperature load-soft creep tester

1. Regularly clean the high temperature furnace

Regularly cleaning the high temperature furnace is a key step to ensure the accuracy of the test. The inner wall of the furnace is prone to accumulate residues and impurities, affecting the uniformity of the heat flow field. When cleaning, you can use a stainless steel wire brush or steel wool to gently scrub, and use a vacuum cleaner to remove the residue. The thermocouple probe and protective tube of the temperature measurement system also need to be carefully cleaned to prevent being wrapped by contaminants and affecting the temperature measurement.

2. Parts inspection

Regular inspection of key components of high temperature load-soft creep tester is the basis for ensuring long-term stable operation of the instrument. First, visual inspection of the inner wall, top cover and other parts of the furnace should be carried out to check whether there is abnormal oxidation, corrosion or deformation. The pressure head is the core component for applying pressure. It is necessary to check whether it maintains good parallelism with the sample table and whether there is serious wear or scratches on the bottom of the pressure head. For the thermocouple probe of the temperature measurement system, check whether its insulation layer is intact and whether there is oxidation at the end of the probe.

3. Regular calibration

The high temperature furnace tube is the core component of the creep test. Its heating uniformity and temperature accuracy directly determine the reliability of the test data. Due to long-term high temperature operation, the furnace tube will undergo irreversible annealing, resulting in a decrease in heating performance. Therefore, it is necessary to calibrate the high temperature furnace regularly, check the linearity of its temperature control, and make corresponding corrections according to the actual situation. Usually, full temperature zone calibration is performed every 6-12 months.

4. Replacement of consumables

The thermocouple of the temperature measuring device is a common consumable. It will fail or drift after a period of use and must be replaced in time according to the usage. The seals of the furnace, such as asbestos gaskets and thermal insulation felt, are also consumables. Long-term heat will degrade and age, affecting the sealing effect. In addition, if the protective tube and protective cover are damaged, they should also be replaced in time.

  

Precautions for maintenance of high temperature load soft creep tester

1. Follow the operating procedures: Maintenance and repair behaviors should strictly comply with the instrument's operating manual regulations. Do not disassemble or repair without authorization to avoid man-made damage. In case of special circumstances, consult the manufacturer's maintenance personnel in time.

2. Ensure personal safety: Since the instrument will be in a high temperature state when working, the power should be turned off during maintenance, and the furnace should be fully cooled before repair. Operators need to wear protective equipment such as gloves, goggles, etc. to prevent burns.

3. Avoid instrument vibration: During the maintenance process, avoid violent vibration of the instrument body to avoid affecting the precise alignment and calibration status of the instrument. Be extremely careful when moving the instrument to avoid collision and violent vibration.

4. Back up data regularly: To prevent data loss, the test data and parameter settings in the instrument should be backed up regularly, and effective measures should be taken to prevent data damage.

The maintenance methods and precautions of the high temperature load creep tester have been introduced to you. As a sophisticated equipment, it is necessary to formulate a complete maintenance plan and adhere to it. This can not only extend the service life of the instrument, but also ensure the accuracy of the test data and bring out the best performance of the instrument.