The harm of too high temperature of plastic injection molding machine - Min-Hui

The harm of too high temperature of plastic injection molding machine - Min-Hui: Excessive plastic injection molding machine temperature will cause great harm to the machine, such as thermal deformation of the machine, the viscosity of the oil will be reduced and so on.

Excessive plastic injection molding machine temperature will cause great harm to the machine, such as thermal deformation of the machine, the viscosity of the oil will be reduced, the rubber seals will be deformed, accelerate the oxidation of the oil to cause deterioration, and at the same time will make the air component pressure reduce.
Thermal deformation of machinery:
Moving parts with different coefficients of thermal expansion in hydraulic components are stuck due to the reduced clearance, which will cause malfunctions and affect the transmission accuracy of the hydraulic system, resulting in poor working quality of the components.

The viscosity of the oil will decrease:
If the temperature of the plastic injection molding machine rises too high, the viscosity of the oil will decrease, the leakage will increase, and the volumetric efficiency of the pump and the efficiency of the entire system will be significantly reduced. As the viscosity of the oil decreases, the oil film of the moving parts such as the slide valve becomes thin and cut, and the frictional resistance increases, resulting in increased wear.

The rubber seal will deform:
Excessive temperature rise of the plastic injection molding machine will deform the rubber seals, accelerate the aging failure, reduce the sealing performance and service life, and cause leakage.

Accelerate the oxidation of oil to cause deterioration:
If the temperature of the plastic injection molding machine rises too high, it will accelerate the oxidative deterioration of the oil, precipitate asphalt, and reduce the service life of the hydraulic oil. The precipitates block the damping orifice and the slit valve port, causing the pressure valve to be stuck and unable to move, the metal pipe is extended and bent, or even broken.

Resulting in poor working quality of components:
If the temperature of the injection molding machine is too high, the working quality of the components will be deteriorated, the dissolved air in the oil will escape, and cavitation will occur, which will reduce the performance of the hydraulic system. The ideal working temperature of the hydraulic system should be between 45 degrees and 50 degrees, because the hydraulic system is designed according to the viscosity of a selected pressure oil, but the viscosity will change with the temperature of the oil, which will affect the work in the system Components, such as oil cylinders and hydraulic valves, reduce the control accuracy and response sensitivity, especially for precision injection molding machines. At the same time, if the temperature is too high, it will accelerate the aging of the seals, causing them to harden and crack; when the temperature is too low, the processing energy consumption is large, and the running speed is reduced. Therefore, it is necessary to pay close attention to the working temperature of hydraulic oil. There are various reasons for the high oil temperature, but most of them are due to oil circuit failure or cooling system failure.
plastic injection molding machine
Dongguan MinHui Plastic Machinery Co., Ltd. is one of the most professional and  experienced manufacturers of vertical plastic injection machines in China. With more than 20 years' experience in the researching and production in this field, we successfully supply and serve our clients with advanced and precise vertical injection machines. focus on BMC Machine Series，LSR Liquid Silicone Rubber Machine，MH C-Type Machine Series，MH Duoble Sliding Machine Series，MH Single Sliding Machine Series，MH Standrad Machine Series and so on.we have perfect customizd service and after-sales service,if have any qustions,please feel free contact us.    
TEL:(+86)-135-0921-7256/Mr.Huang，(+86)-13528673908/Hugo Chen
Email： minhui@min-hui.com，salesdept@min-hui.com
ADD：No.8 YongXing Street, ShiJie Town, DongGuan City, GuangDong Province, China

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