The hydraulic press is a kind of machine that uses hydrostatic pressure to process various materials. The hydraulic press generally consists of three parts: the machine (main machine), the power system and the hydraulic control system. During the use of hydraulic oil, due to mechanical, physical and chemical effects, it always deteriorates quickly or slowly. When the quality of the working medium decreases to meet the requirements of the index, it must be replaced in time. Below, Hydraulic Press Exporter will share with you the method of changing the hydraulic oil of the hydraulic press.
Once the hydraulic oil is produced, it will gradually deteriorate. In the long-term storage process, the particulate pollutants in the oil tend to agglomerate. During transportation, if the hydraulic machine is subjected to vibration, it will also agglomerate in small particles. After joining the hydraulic system, the fission speed will be greatly accelerated. Taking mineral oil hydraulic oil as an example, more than 96% of the components are carbon and hydrogen compounds-hydrocarbons, and the rest are sulfur, nitrogen and ash. Various additives such as anti-oxidation, anti-wear, anti-rust, defoaming, and anti-coagulation are also added as required. In use, due to external factors such as air, moisture, impurities, heat, light, mechanical agitation, the internal components of the Hydraulic Press Machine and the hydraulic oil, such as the chemical composition and the properties of additives, can cause various physical and chemical changes. The hydraulic oil gradually deteriorates. If the hydraulic oil is used in the system for too long, it will affect the performance and efficiency of the hydraulic machine, so we need to know under what circumstances the hydraulic oil needs to be replaced? This mainly depends on the degree of oil contamination.
Hydraulic Press Machine
There are three ways to determine the oil change period:
1) Determine visually on a regular basis. The maintenance staff will take regular sampling observations and decide whether to change the oil based on some of the oil's conventional state changes-such as the oil becoming black, stinky, or milky. Or do a simple analysis to decide whether to change the oil. It also depends on personal experience and is not sufficiently based.
2) Change the oil on schedule. This is the method commonly used in factories. According to the environmental conditions, working conditions of the site where the equipment is located, and the oil change interval of the oil used, the replacement will be performed when it expires. This method is very suitable for companies with more hydraulic equipment.
However, it deviates from the actual situation of aging and deterioration of hydraulic oil in use, and does not take into account the actual working conditions such as whether the hydraulic machine is used frequently, so it is biased against experience and not scientific enough.
3) Determine the oil change index, and determine whether to change the oil according to the results of the oil sample test in the most scientific and fair way. However, there is currently no specified oil change indicator. Periodically sample and test the oil in the hydraulic press, determine the necessary items (such as viscosity, acid value, moisture, particle size and content, and corrosion) and indicators, and carry out according to the actual measurement of the oil quality and the prescribed oil degradation standards Contrast, determine whether the oil should be changed. Sampling time: The hydraulic system of general construction machinery should be performed one week before the oil change cycle. The key equipment, such as the hydraulic system of TBM full-section roadheader, should be sampled every 500 hours. The test results should be filled in the equipment technology. file. The sampling test method is applicable to key equipment and large hydraulic equipment.
The above is a summary of the method for hydraulic oil replacement of hydraulic press by the supplier of Induction Heating Pipe Bending Machine. I hope it can help you.