The causes of oil leakage of injection molding machine can be divided into internal leakage and external leakage. Internal leakage refers to that a small amount of liquid inside the hydraulic components leaks from the high-pressure chamber to the low-pressure chamber. adjustment injection molding machine Hydraulic components to reduce wear of components to be controlled. It can also reduce and eliminate internal leakage through innovative maintenance design of hydraulic components.

　 The causes of leakage are:

1、 If the pipe joint is loose or the ring is damaged, it should be handled by tightening the joint or replacing the ring.

2、 There is leakage on the joint surface of the component, which is mainly caused by insufficient pre tightening force of the fastening screw and wear of the joint ring. At this time, increase the preload or replace the ring.

3、 Since the internal pressure of the component housing is higher than the allowable pressure of the oil seal or the oil seal is damaged, the leakage at the journal can be solved by reducing the internal pressure of the housing or replacing the oil seal.

4、 External leakage occurs in common places, such as leakage caused by poor installation of piston rod and valve rod, pre compression of V-joint ring, oil seal damage, etc; It is necessary to replace the oil seal in time and adjust the preload of the V-shaped sealing ring.

5、 The oil level gauge of the oil tank leaks oil, which is caused by water seepage into the oil or oil seepage into the water. It should be removed and repaired in time.

　　 Causes of heating of injection molding machine and solutions:

　　 Plastic injection molding machine There are two reasons for the heating of the hydraulic system: one is the unreasonable design, and the other is the oil contamination in the system operation. You can check the heating part of the system by feeling it. For example, hydraulic pump, hydraulic motor, overflow valve, etc. are easy to heat. As long as you touch the element housing with your hand, you can know whether it is overheated. When the temperature of the component shell rises to 65 ℃, ordinary people can hardly bear it. If you can put your hand on the component shell, it means that the oil temperature is still lower than the allowable high temperature of the system components. If you dare not touch the element shell, it means that the oil temperature is too high, and measures should be taken to control the oil temperature in time. Under the condition that the system is not affected, the hydraulic pump and hydraulic motor can usually be cooled by flushing water to control heating.