The hydraulic machine can be adjusted freely in the design stroke, which is suitable for the pressing assembly of the shaft and sleeve parts, and can also complete the bending, stretching, shaping and other processes of the plate. The working medium not only transfers the pressure, but also ensures the sensitive and reliable working parts. The initial working medium uses water, and then uses emulsion to increase lubricity. Lubricant can firmly adhere to the friction pair of hydraulic oil film, separated the two friction surface lubrication, don't think any lubricant, not only has the lubrication, cooling, washing and seal, and so on, to take away the heat generated by the friction to prevent burns, clean from the hydraulic friction pair of metal powders and other sundry, prevent moisture or impurities into the, still can rise to prevent oxidation, The effect of shock absorption and buffering.
Good lubricating oil plays a good role in the hydraulic press. The faster the speed, the easier it is to form an oil wedge. Low viscosity lubricating oil is selected to ensure the existence of oil film. Lubricating oil viscosity is too high, the generation of impedance is large, the heat is too high, resulting in high temperature; When the hydraulic machine operates at low speed, the viscosity of the oil is used to carry the load, and the lubricating oil with high viscosity should be selected. Load of general hydraulic press to choose the higher the viscosity of the lubricating oil, the greater the temperature change is big when choose high viscosity index of lubricating oil, if in the damp environment, or an aerosol environment should choose strong emulsification, oil and rust resistance good lubricating oil, dust in the larger environment must complete hydraulic dust seal processing, has the environment of corrosive gas corrosion resistance good lubricating oil should be chosen, In short, good lubrication can effectively reduce the wear of the hydraulic press.
