The hydraulic press machine can be adjusted arbitrarily within the designed stroke. It is suitable for pressing parts such as shafts and sleeves, and can also complete processes such as bending, stretching, and shaping of plates. The working medium not only transmits pressure, but also ensures the sensitivity and reliability of the working parts. The hydraulic press initially used water as the working medium, but later switched to emulsion to increase lubricity; the lubricant can firmly adhere to the friction pair of the hydraulic press to form an oil film, lubricating and separating the two friction surfaces. Don't underestimate the lubricant, which not only has a lubricating effect, but also It has the functions of cooling, washing and sealing to take away the heat generated by friction to prevent burns. It cleans metal powder and other debris from the friction pair of the hydraulic press to prevent moisture or impurities from entering. It can also prevent oxidation and shock absorption. .
Good lubricating oil plays a good role in the hydraulic press machine. The faster the speed, the easier it is to form an oil wedge. Choose low-viscosity lubricating oil to ensure the existence of the oil film. The viscosity of the lubricating oil is too high, resulting in high impedance and high heat generation, resulting in excessive temperature. When the hydraulic press machine operates at low speed, it relies on the viscosity of the oil to carry the load, so lubricating oil with higher viscosity should be selected. Generally, the greater the load of the hydraulic press machine, the higher the viscosity of the lubricating oil selected. When the temperature changes greatly, the lubricating oil with a high viscosity index should be selected. If it is in a humid environment or an environment with aerosol, the lubricating oil should be selected with strong anti-emulsification, oiliness and good rust resistance. For lubricating oil, the dust-proof sealing treatment of the hydraulic machine should be done in an environment with large dust. In an environment with corrosive gas, a lubricating oil with good anti-corrosion performance should be selected. In short, good lubrication can effectively reduce the wear of the hydraulic press machine.
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