Issues to be noted in the maintenance of testing machines

Testing machines are high-precision instruments and equipment mainly used to test the physical properties of materials, and they also require proper maintenance. So how do we maintain this high-precision instrument and equipment, the testing machine?

  There are several series of testing machines, including hydraulic universal testing machines, electronic universal testing machines, press machines, and some fatigue testing machines. Currently, we mainly discuss the routine maintenance and upkeep issues of hydraulic universal testing machines.

The hydraulic universal testing machine also has detailed requirements for the space environment. The temperature in the laboratory is generally required to be between 16 degrees Celsius and 35 degrees Celsius, and the humidity of the air is controlled within 70 degrees Celsius. Indoor dust should be avoided as much as possible. The current power requirements for hydraulic universal testing machines in China are 380V and 220V, and the voltage should be stable. If the voltage is unstable in some places, it is suitable to prepare a voltage regulator specifically, because unstable voltage may cause electrical components inside the testing machine to malfunction and affect normal function.

The internal dedicated hydraulic oil of the hydraulic universal testing machine is generally anti-wear hydraulic oil, using No. 46 or No. 68 anti-wear hydraulic oil. The hydraulic oil inside the oil tank should be replaced regularly, usually within six months or one year. After the hydraulic universal testing machine completes the test, the iron filings or compressed cement residues on the surface of the workbench should be cleaned to avoid entering the oil circuit and causing blockage.

The main body of the testing machine, including the columns and lead screws, needs to be regularly coated with anti rust oil to effectively prevent rust at the screw columns and ensure smooth operation of the testing machine.

Then, the main parts of the hydraulic universal testing machine, including the internal and external connecting wires, should be regularly checked to ensure that the connections are secure and there are no loose areas. Once loose, it may cause the machine's operation to be obstructed, resulting in incomplete operation or functionality of the hydraulic universal testing machine.

The sensor of the force measuring system of the hydraulic universal testing machine needs to be calibrated regularly to ensure that the measured data are valid. If you encounter some other problems during the use of the hydraulic universal testing machine, please visit the website of Jinan Liling Testing Machine Co., Ltd., or pay attention to the WeChat public number of Liling Testing Machine, and we will give you a detailed explanation.