Digital electronic tensile testing machineBelonging to mechanical testing equipment, as it is a precision and valuable device, daily maintenance work must be done to avoid the accumulation of small problems in the equipment. We can start from three aspects.

1、 Host maintenance:

(1) The fixtures equipped with the machine should be coated with rust proof oil for storage;

(2) Due to the frequent use of the jaws of the material testing machine, they are prone to wear and tear. If there is too much oxide skin, it can easily cause damage to the small piston and oil leakage. Therefore, the jaws should be cleaned regularly and kept clean (to be cleaned after each test);

(3) The sliding surface between the embedded steel plate and the lining plate, as well as the dovetail groove surface on the lining plate, should be kept clean and regularly coated with a thin layer of MoS2 (molybdenum disulfide) grease;

(4) Regularly check the screws in the jaw area, and tighten them promptly if any looseness is found;

(5) Regularly check the transmission condition of the sprocket. If any looseness is found, please re tighten the tensioning wheel;

2、 Maintenance of oil source:

(1) Regularly check whether there are any oil leaks at the host and oil source. If any oil leaks are found, the sealing ring or combination gasket should be replaced in a timely manner;

(2) According to the usage of the machine and the expiration date of the oil, regularly replace the oil suction filter and filter element, and replace the hydraulic oil.

(3) When not conducting experiments for a long time, pay attention to turning off the power supply of the host. If the machine is in standby mode, the transfer switch should be set to the "load" position, because if the transfer switch is set to the "fast reverse" position, the electromagnetic reversing valve will remain powered on, which will affect the service life of the device.

3、 Maintenance of control system:

(1) Regularly check whether the connecting wires on the back panel of the controller are in good contact, and if they are loose, they should be tightened in a timely manner;

(2) If the machine is not used for a long period of time after the experiment, turn off the controller and computer;

(3) The interfaces on the controller correspond one-to-one, and plugging in the wrong interface may cause damage to the device;

(4) The interface on the plug-in controller must be powered off.

The above are some knowledge about maintenance of material testing machines. Please read them carefully to ensure that the service life of the testing machine is extended.