The hydraulic universal testing machine can be used for tensile, compressive, bending, shearing, peeling and other tests of metal and non-metal composite materials. The experimental operation and data processing comply with the requirements of GB/T228-2010 "Metal tensile testing methods at room temperature for materials". The entire testing process is automatically completed by the computer, and the test data can be displayed in real time, and various test curves and reports can be automatically generated. And it can be stored and printed. The product is widely used in fields such as metallurgy, construction, light industry, aviation, aerospace, materials, colleges and universities, scientific research institutions, etc. The KN microcomputer controlled electro-hydraulic servo universal testing machine integrates automatic control, automatic measurement, data acquisition, screen display, and test result processing. It is equipped with a precision oil pump and PC servo controller on the platform of the main engine under the oil cylinder, achieving multi-channel closed-loop control and completing functions such as automatic control and measurement during the testing process. It has the characteristics of good professionalism, high reliability, and easy upgrading, and can be continuously enriched and improved with the development of experimental control technology and changes in experimental standards.
The main engine of Hongjin Hydraulic Universal Testing Machine adopts a cylinder type main engine structure. Mainly used for tensile, compression, and bending tests on metal materials, non-metallic materials, product components, components, structural zeros, and standard parts. This series of testing machines can also be used for tensile, compressive, and bending tests of materials in this environment. For example, high-temperature tensile test, low-temperature tensile test, and compression test.
Common faults and solutions of hydraulic universal testing machines:
1.If there are impurities in the lubricating oil added to the equipment, it will cause wear on the surface of the oil cylinder and oil plug, resulting in increased clearance and oil leakage. In this case, it is necessary to use lubricating oil with higher viscosity. If the pressure still does not meet the standard due to oil leakage, a new oil cylinder needs to be replaced.
2. If there is a problem with the position of the equipment safety adjustment, the high pressure of the equipment cannot rise. When the oil pump and delivery valve of the equipment are normal, if the pointer cannot rise steadily at low tonnage, but stays in a small range at high tonnage, you can choose to loosen the nut of the safety valve, tighten the screw to a certain degree, and then tighten the nut to adjust, In fact, the function of the insurance method in pressure testing machines is to ensure that the equipment is not damaged in case of accidents or when the pressure exceeds the specified limit.
3. After installation, if the register pointer experiences vibration or stagnation when uniformly loaded, and if it is caused by the first oil injection into the force measuring cylinder and the air inside the cylinder is not completely discharged, it is necessary to promptly discharge the air; If the oil cylinder is too dirty, this situation can also occur. At this time, it is important to carefully clean the oil cylinder.
4. If the device is left unused for a long time after its first use, or if it is replaced with new oil, the pointer may also experience intermittent or shaking. At this time, it is necessary to loosen the exhaust valve on the oil pump and let the oil pump run for a period of time, allowing gas to shoot out from the loosened screw hole, and then tighten it to solve this problem.
During the use of a pressure testing machine, it is common to encounter malfunctions or minor issues. Of course, when such malfunctions or minor issues occur, they must be taken seriously and resolved in a timely manner. If they cannot be resolved, professional technical personnel should be present to ensure the quality of the equipment and ensure its smooth and effective operation.
Post time: Jan-02-2024