Hydraulic universal testing machine plays a key role in structural mechanics testing of building decorative materials and metal composite materials. It can accurately test the necessary data, so the hydraulic press tension testing machine has been widely used in large and medium-sized steel industry and its quality inspection enterprise laboratories. However, in the whole process of application of Hydraulic Press Tension Testing machine, people should pay attention to its maintenance and maintenance. Many experimenters often complain about the common faults in the application of Hydraulic Press Tension Testing machine. I think many difficulties are due to the fact that the experimenters do not pay attention to the proper methods during the whole process of the application of the hydraulic press tension testing machine, which may lead to the difficulties of the tester. If we know enough about the hydraulic press tension testing machine, people can prevent things from happening very well. Then, how to ensure the proper maintenance of the hydraulic press tension testing machine and the common problems of zero-calibration of the machine and equipment?
How to ensure the proper maintenance of the hydraulic press tension testing machine and the common problems of zero calibration of the machine and equipment
How to Maintain the Hydraulic Universal Testing Machine Correctly
Complete the corresponding experiment with the appropriate fixture. Hydraulic universal testing machine is only equipped with fixtures for standard samples, and for non-standard patterns, it is necessary to use appropriate fixtures to cooperate with its use in order to ensure the accuracy of the test.
Cleaning and cleaning of hydraulic universal testing machine. Some dust will inevitably appear during the test. If these dust can not be cleaned up in time, it may cause great damage to the hydraulic energy expectancy testing machine, so it must be cleaned after each use.
Replenish hydraulic oil in time. Hydraulic oil should be supplemented in a certain period of time.
Replacement of filters. Generally speaking, the filter with blocking indicator should be detected and replaced in time, and the hydraulic universal testing machine without blocking indicator should be replaced every six months.
Check components regularly.
Fasteners should be locked regularly. The process of test may bring about loosening of fasteners, so it should be treated regularly.
Cleaning and inspection of cooler. Regular observation of the cooler, if there is fouling, to clean up in time.
Supplementary problems of accumulator. If the pressure in accumulator is not enough, it should be supplemented in time.
The transmission part is coated with lubricant in time. This reduces friction.
How to Maintain the Hydraulic Universal Testing Machine Correctly and Notices for Zero Adjustment of the Equipment
II. Notices for Zero Adjustment of Hydraulic Universal Testing Machine
When the zero is too large, first adjust the zero, then clear the software in each gear.
When the cylinder is not raised, the test force shows a negative value, which is a normal phenomenon. Please do not adjust the zero point.
For the adjustment of zero point, it should be done after the extensometer is clamped on the sample and the test piston is in a static state.
Generally speaking, the governor has adjusted the zero of the sensor well. When the system starts up, the zero of the sensor will be automatically calibrated without any readjustment by the user.
Users can adjust the hardware zeros with the hardware zeros button, and the system will automatically record the new zeros.
Non-grading measurement does not adjust zero point, so for hydraulic universal testing machine, because the whole process is non-grading, so this matter applies to electronic universal testing machine. /