Hydraulic oil for injection molding machines is a sensitive term. A concept of temperature is involved here. This is the temperature of the hydraulic oil. The temperature of the hydraulic oil carried by different injection molding machines is also relatively different. Different hydraulic oils will show different temperatures during their activities. Therefore, the temperature of the hydraulic oil is very uncertain.
Generally speaking, the ideal working temperature of a hydraulic system should be between 45 degrees and 50 degrees. The reason is that the hydraulic system is designed according to the selected pressure oil viscosity. However, there is a certain dependence, but the viscosity will With the change of the oil temperature, it will affect the working elements in the system, such as oil cylinders, hydraulic valves, etc., which will reduce the control accuracy and response sensitivity, especially for precision injection machines.
You must know that insufficient oil quantity will cause the oil temperature to rise easily. This is a problem of oil quantity supply. Air is easily dissolved in the oil and affects the normal operation of the oil quality and hydraulic system. The insufficient oil quantity is usually caused by oil leakage or loss during repair. So we should fix such problems early. For this reason, you should pay attention to checking for leaks daily, replacing worn seals early, tightening loose joints, etc. After maintenance, check the amount of oil in the tank and replenish it in time.
It is very important that one of the important properties of hydraulic oil is its chemical stability, that is, oxidation stability. Oxidation is the most important factor that determines the effective service life of hydraulic oil. This important factor needs attention. We know that insolubles such as wood tar, sludge, and carbon residue generated by oxidation will pollute the hydraulic system and increase the wear of hydraulic components. , Reduce various clearances, block small holes, and eventually cause the hydraulic system to malfunction.
Exactly, the oxidation speed of hydraulic oil depends on many factors such as itself and working conditions. No matter which factor is a very important factor, of which temperature is one of the main factors, so it is necessary to use a suitable hydraulic oil and regularly check the hydraulic oil. After a certain degree of oxidation, active oil change is absolutely necessary.
During the use of the injection molding machine, always check the level of pressure oil, the pressure of the oil pump and the cleanliness of the pressure oil, and other conditions of the pressure oil. In wet weather, the pressure oil concentration must be checked daily. At the same time, the water pipe must be checked frequently to avoid water from appearing in places that should not appear, so as to prevent water from mixing in the pressure oil and causing oil filter blockage.
It is well known that the fuel tank must be checked frequently to keep it clean and prevent debris from falling into it. Replenish pressure oil on time. Fully mobilize the role of lubrication. For lubricating the moving parts, the travel switches, screws are tight, and the oil hoses, joints are leaking oil, etc., should be routinely checked once a week to develop a good habit to maintain a good condition, if loose, replace or tighten .
It is better to have a fixed value for the temperature of the hydraulic oil of the injection molding machine. This fixed value is quite affected by the hydraulic system. Therefore, the performance will be changed by the change of oil temperature. This is caused by temperature. In the injection molding process, various important influence factors must be in normal working conditions. For example, the role of hydraulic oil should give full play to its working efficiency.