If the temperature of the hydraulic system of the small punch is too high, the air separation pressure and full vapor pressure of the air in the hydraulic oil of the press will rise, and the phenomenon of negative air pocket will be more simple. It is easy to cause the failure of the small punch, even damage and shutdown, which will affect our production and processing tasks. Let's take a look at the reasons for the high temperature of the hydraulic oil of the small punch.

1. Causes of high oil temperature in hydraulic system of small punch press

From the principle of hydraulic system of small punch press, we can know that there are two parts to generate heat in hydraulic system: one is the power component oil pump which converts mechanical energy into pressure energy, and the other is the control component and performance component which converts pressure energy into mechanical energy. These two parts will generate heat under normal working conditions, and the heat is transferred from the cooling system of the system OK, cool down. Because under this pressure, the influence of pressure factors on the viscosity of hydraulic oil can be ignored, and the influence of temperature on the viscosity is the first consideration; when the temperature increases, the cohesion of oil molecules decreases, and the viscosity decreases.

2. Structure and basic principle of hydraulic system of small punch press

The complete hydraulic system of small punch press should be composed of these components: power element, performance element, control element, auxiliary element and hydraulic oil; the effect of power element (oil pump in the system) is to convert the mechanical energy of electric motor into the pressure energy of liquid to supply power to the whole hydraulic system. Therefore, when one or more of these components are abnormal, the oil temperature of the system will rise.

3. Accelerating the aging of hydraulic oil for small punch press

The oxidation reaction of hydraulic oil is the main reason for the aging of small punch press, and the ignition of oxidation reaction is closely related to the oil temperature. Experiments show that when the oil temperature reaches the temperature zone (55 & mdash; 60 ℃), the oxidation reaction of hydraulic oil will double and its life will be shortened by 50% when the oil temperature increases by 10 ℃.

After solving the problem that the oil temperature of the small punch is too high, we can debug it according to the model and other parameters, do a good job in oil temperature treatment, and debug it to the appropriate oil temperature, which can also promote the efficiency of the production line.