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How to solve the problem of overheating of oil-electric hybrid injection molding machine?

TIME:2021-04-12 Share

The five main dangers of the high temperature rise of the hybrid injection molding machine: it will cause thermal deformation of the machine, reduce the viscosity of the oil, deform the rubber sealing ring, accelerate the oxidative deterioration of the oil and reduce the oxidation of the oil, and it will also cause the partial pressure of the air. reduce.

The moving parts with different coefficients of thermal expansion in the hydraulic components are stuck due to their smaller fit gaps, causing malfunctions, affecting the transmission accuracy of the hydraulic system, and causing poor working quality of the parts. You can frequently check and adjust the overflow according to different load requirements. The pressure of the flow valve makes it just right.

If the temperature of the oil-fuel-electric hybrid injection molding machine is too high, the viscosity of the oil will decrease and leakage will increase. The volumetric efficiency of the pump and the efficiency of the entire system will be greatly reduced. As the viscosity of oil decreases, the oil film of moving parts such as slide valves becomes thinner and cut, and frictional resistance increases, resulting in increased wear. The hydraulic oil can be selected appropriately, especially the viscosity of the oil. When conditions permit, please use a lower viscosity as much as possible to reduce viscosity friction loss.

If the temperature of the oil-fuel-electric hybrid injection molding machine is too high, the high rubber seal will be deformed, which will accelerate the aging failure, reduce the sealing performance and service life and cause leakage. At this time, it is necessary to improve the lubrication conditions of the moving parts to reduce friction loss, which is conducive to reducing the workload and reducing heat generation.

injection molding machine
If the temperature of the hybrid injection molding machine is too high, it will accelerate the oxidative deterioration of the oil, precipitate asphalt, and reduce the service life of the hydraulic oil. The sediment blocked the orifice and the slit valve port, causing the pressure valve to be stuck and unable to operate, and the metal pipe was stretched and bent, or even broken. At this time, it is necessary to improve the assembly quality and accuracy of hydraulic components and hydraulic systems, strictly control the clearance of matching parts and improve lubrication conditions. The use of sealing materials with a small friction coefficient and an improved sealing structure can greatly reduce the starting force of the hydraulic cylinder, thereby reducing the heat generated by the mechanical friction loss.

If the temperature of the hybrid injection molding machine is too high, it will reduce the working quality of the components, make the air dissolved in the oil escape, and form air pockets, thereby reducing the working performance of the hydraulic machine. Hydraulic system. The ideal working temperature of the hydraulic system should be between 45 degrees and 50 degrees. Excessive temperature will also accelerate the aging of the seal and cause it to harden and crack; if necessary, add a cooling device.

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