What are the damages when the hydraulic press is overloaded?
Time:2021-03-20
Views:3049
The system pressure of the four-column hydraulic press is designed to be higher than the actual pressure, which not only increases the service life of the equipment, but also protects the hydraulic components from damage. As many people do not understand, it is easy to cause pressure overload on the four-column hydraulic press when operating the equipment. Next, the editor of the four-column hydraulic press manufacturer will give you an introduction.
What effect does the four-column hydraulic press have when it is overloaded?
Normally, the normal pressure of a four-column hydraulic press is 25MPa. In the normal production process, the pressure of the hydraulic press shall not exceed 25MPa. For example, take the three-beam and four-column hydraulic press we have used for a long time as an example. The working temperature is usually within the range of 30-80, and the oil temperature in the hydraulic system of the four-column hydraulic machine must be controlled within the range of 30-60 degrees. If the oil temperature exceeds this range, it will have many adverse effects on the hydraulic system.
When the working pressure of the four-column hydraulic machine is greater than 25MPa, we can control the working pressure of the four-column hydraulic machine through the electric contact pressure gauge or the system pressure regulating valve on the hydraulic system. The pressure overload of the four-column hydraulic machine will cause the equipment pressure to rise rapidly, which will cause the hydraulic pump and the motor to work overload, which will affect their service life. The corresponding hydraulic cylinder will also be overloaded, which will affect the service life of the hydraulic cylinder. If the quality of the hydraulic pipeline is not good, it will also cause the tubing to burst, leak oil, cause some failures and damage the equipment. The pressure overload of the four-column hydraulic press not only affects the performance of the equipment, but also causes certain accidents. Many large manufacturers will consider the corresponding issues at the beginning of the design and install the corresponding unloading valve. When the pressure suddenly rises, the high-pressure hydraulic oil returns to the tank through the unloading valve or shutdown protection device.
Since the pressure overload of a four-column hydraulic press is harmless and huge, many experienced designers have taken this into consideration. An unloading valve will be installed in the hydraulic system design. Therefore, when purchasing a four-column hydraulic press, not only the selling price of the equipment must be checked, but also the technical strength of the manufacturer. Especially for the four-column hydraulic machine purchased in a small company, not only the quality cannot be guaranteed, but the hydraulic system cannot be guaranteed, let alone the influence of pressure overload.
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Mr Tan