From the analysis of numerous articles, we can see how a superior injection molding machine works. At the same time, you can also know which external effects can also have an impact on the injection molding machine. This is a questionable thing if the oil temperature of the machine keeps rising. When many atypical problems occur, it is necessary to make full preparations in the injection molding process.
As we all know, the problem of rising oil temperature in injection molding has always been annoying. The rise in oil temperature will not only affect the work of the machine, but also seriously affect the life of the machine. Then only if we strictly implement the measures to prevent the rise in oil temperature, can we be protected from the adverse effects of the rise in oil temperature. The following analysis is made from the viscosity index, whether there is a good hydraulic cooling system, viscosity, and other comprehensive properties.
(1) viscosity index
This index more directly reflects the nature of oil viscosity changes with temperature changes. The higher the viscosity index of the oil, the less the degree of change of the viscosity of the oil with temperature; otherwise, the larger the viscosity. Reducing the viscosity index will reduce the range of ambient temperature to which the oil is suitable. If it is not possible to use it, you should check with the oil manufacturer for relevant information. You must make appropriate adjustments to the use range of the oil, and if necessary, change the relevant settings of the equipment.
(2) Good hydraulic oil cooling system
Normally, for the improvement of the hydraulic oil cooling system of injection molding machines, although the specific operation methods adopted by different manufacturers are different, the basic idea is the same, that is, whether the hydraulic oil radiator is clogged with dirt, which easily leads to heat dissipation efficiency. Lower down and clean the radiator when problems occur.
(3) Hydraulic oil viscosity
The method of determining the viscosity of hydraulic oil is that the hydraulic oil viscosity is in the optimal range on the premise of considering the working temperature and efficiency of the hydraulic circuit; the short-term cold start viscosity corresponding to the minimum ambient temperature is ≤1000X10-6mm2 / s; and the corresponding At a short time, the maximum leakage oil temperature at 90 ° C is ≥10X10-6mm2 / s. These are fixed settings.
(4) Other comprehensive properties
Due to the higher working pressure of the hydraulic system of modern injection molding machines and the highest working oil temperature of the hydraulic oil, in order to ensure that the hydraulic system can work normally during the normal oil change cycle, the lubricity of the oil selected for the system is required , Oxidation stability, abrasion resistance, rust and corrosion resistance, anti-emulsification, foam resistance, shear stability and extreme pressure load have good quality.
The rise in the temperature of injection molding machine oil is a serious problem. We must avoid the rise in oil temperature and use some necessary means. Whether it is the change of the viscosity index or the hydraulic oil cooling system, there will inevitably be some problems. On the other hand, the viscosity of hydraulic oil can only be reflected at a certain temperature. There are also some other comprehensive properties, to ensure that the hydraulic oil has good quality in many aspects such as oxidation stability.
Huansu Precision also has many countermeasures to prevent the oil temperature of injection molding machines from rising. I won't enumerate them here. The service life of the machine is a big issue. The second problem is performance. In most cases, the viscosity of hydraulic oil is a good word. Injection processing plants are well aware of most situations, and the small oil temperature problem is naturally no problem.