The viscosity and precautions of hydraulic oil in the use of four-column hydraulic press
For four-column hydraulic press, the viscosity of hydraulic oil has a lot of big impact on the working state of the machine, then, what impact does the viscosity of hydraulic oil have on the work of the hydraulic system?
Viscosity is one of the important performance indexes of hydraulic oil. Whether it is reasonable or not has a significant impact on the motion stability, working reliability and sensitivity, system efficiency, power consumption, cavitation phenomenon, temperature rise and wear of the hydraulic press plant system. For example, when the viscosity of hydraulic oil is high, the flow resistance of hydraulic oil will increase, and the flow speed will slow down; Due to friction loss, the consumption of r power is increased. Increasing pressure drops on valves and lines reduces the efficiency of the system, and also creates leaks due to increased friction, which increases the oil temperature. If the hydraulic viscosity is low, it will inevitably increase the leakage loss, and the wear of the parts will increase due to the rupture of the oil film between the moving parts.
What points should be noted when using the four-column hydraulic press:
1, do not understand the machine structure performance or operating procedures should not start the machine without authorization; Lower cylinder type four column hydraulic press.jpg
2, the machine in the working process, should not be repaired and adjusted mold;
3, when the machine found serious oil leakage or other anomalies (such as unreliable action, loud noise, vibration, etc.) should stop to analyze the cause, try to eliminate, not put into production with disease:
4, shall not overload or exceed the eccentricity of use:
5. It is strictly prohibited to exceed the stroke of the slider, and the closing height of the mold shall not be less than 600mm.
6, electrical equipment grounding must be solid and reliable:
7, at the end of every day: put the slider to a low position.
