What should I do if the temperature rise of the injection molding machine is too high?

Injection molding machine temperature rise too high cause.

1. Oil tank volume is too small, cooling area is not enough, cooling device but its capacity is too small.

2. The quantitative pump oil supply system which selects the oil pump capacity according to the fast-forward speed, will have most of the excess flow at high pressure from the overflow valve to overflow back and heat up during the work.

3. Failure of unloading circuit in the system or failure to set unloading circuit, the oil pump can not unload when it stops working, and all the flow of the pump overflows under high pressure, resulting in overflow loss and heat, leading to temperature rise.

4. The system pipeline is too thin and too long, too much bending, local pressure loss and along-range pressure loss is large.

5. Insufficient precision of components and poor assembly quality, large mechanical friction loss between relative movements.

6. The clearance of the mating parts is too small, or the use of wear and tear leads to excessive clearance, internal and external leakage, resulting in volume loss, such as the volume efficiency of the pump is reduced, the temperature rises quickly.

7. The hydraulic system working pressure is adjusted much higher than the actual need. Sometimes it is because the seal is too tight, or because the seal is damaged, leakage increases and has to adjust the pressure to work.

8. The temperature of the climate and operating environment is high, resulting in higher oil temperature.

9. Select the oil viscosity is not appropriate, viscosity viscosity resistance is large, viscosity is too small leakage increases, both cases can cause heat temperature rise.

Injection molding machine temperature rise too high treatment methods.

1. According to the different load requirements, often check and adjust the pressure of the relief valve, so that it is just right.

2. Reasonable choice of hydraulic oil, especially the viscosity of the fluid, under the conditions allowed, try to use a lower viscosity to reduce viscosity friction loss.

3. Improve the lubrication conditions of moving parts to reduce friction loss, which is conducive to reducing the work load and heat generation.

4. Improve the assembly quality and precision of hydraulic components and hydraulic system, strictly control the clearance of the mating parts and improve the lubrication conditions. Use sealing materials with small coefficient of friction and improve the sealing structure, and reduce the starting force of hydraulic cylinder as much as possible to reduce the heat generated by the mechanical friction loss.

5. Check whether the hydraulic oil cooling system is blocked.