About the hydraulic knowledge of injection molding machine

Hydraulic oil temperature: the optimum temperature of the hydraulic system is between 45-50 degrees, which is related to the selected pressure oil year of the hydraulic system. Because the year will be affected by temperature, and then affect the hydraulic components, such as oil cylinder, hydraulic valve, etc., to reduce the control accuracy and response sensitivity, especially for the precision injection machine more prominent impact.

Hydraulic oil quantity: oil shortage will cause great harm to the hydraulic system, will cause oil temperature Yi Shenggao, air easy to dissolve into the oil, and affect the normal work of oil and hydraulic system. Oil shortage is usually caused by oil leakage or repair loss, the daily use of more attention to leakage, new problems should be replaced as soon as possible worn seals, tightening loose joints, etc., after maintenance, to check the oil tank, timely supply.

At the same time, too high temperature will accelerate the aging of the seal to harden and fragmentation; when the temperature is too low, the processing energy consumption is large, so that the speed of operation is reduced. Therefore, it is necessary to pay close attention to the working temperature of hydraulic oil. There are many reasons for excessive oil temperature, but most of them are attributed to oil circuit failure or cooling system failure.

The hydraulic oil oxidation rate depends on itself and working conditions and other factors, in which the temperature is one of the main factors, so we use the appropriate hydraulic oil, oxidation degree and regular inspection of hydraulic oil (oil from the color turn deep and judgment), more than a certain number of work hours after active oil is absolutely necessary the.

Hydraulic oil quality: one of the important properties of hydraulic oil is its chemical stability, that is, oxidation stability. Oxidation is the main factor to decide the effective service life of hydraulic oil, oxidation of wood tar, sludge and carbon residue and other insolubles will pollute the hydraulic system, hydraulic components and increased wear, reduce the gap, plug holes, ultimately resulting in hydraulic system failure.

Always check the tank, keep clean, prevent debris fall into. Replenish pressure oil on time. For each part of the lubrication, the switch, the screw tightness, and the oil throat, joint parts whether the oil leakage, etc., should be checked once a week, maintain good condition, if loose, then replace or tighten.

Injection molding machine in use process, should always check the oil level, oil pressure and oil pressure cleaning degree, when the concentration of wet weather, must check daily pressure oil, also need to regularly check the water pipes, so that the water is mixed in the oil pressure in the oil filter blockage caused.

In addition, a pressure oil used too long, can replace the pressure oil, so as to extend the oil pump, oil pump and sealing ring life.

Cooler cleaning: cooler should be cleaned once every two years, or on the basis of their ability to work or reduce cleaning, cooler internal blockage or fouling will influence the cooling efficiency, cooling water should choose soft (no minerals).

Oil filter cleaning: the oil filter plays the role of clean hydraulic oil, so the oil filter should be cleaned every three months to keep the oil pump smooth, and check whether the oil filter network damage. The specifications of filter screen shall not exceed 200 mesh.

Wonderful recommendation:

How should the paver work on the concrete road?

Little knowledge of hydraulic forming machine

How to better maintain the electric hydraulic pump