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Author: MULAN -Plastic Molding Manufacturer
Injection mold processing manufacturers analyze how to deal with excessive temperature in the injection molding process. As we all know, temperature is a key factor in the production process of injection mold processing plants, and it will directly affect the quality of injection molded parts. Therefore, every injection molding processing enterprise has a set of effective temperature management methods for injection molding processing.
So, what are the disadvantages of high injection molding temperature? How should we deal with the problem of overheating? The following injection molding processing manufacturers will introduce to you! 1. Thermal deformation of the machine: The moving parts with different thermal expansion coefficients in the hydraulic parts get stuck due to their small fit during the trial period, which leads to action failure, affects the transmission accuracy of the hydraulic system, and leads to poor working quality of the parts. 2. Reduce the viscosity of the oil: Excessive temperature rise of the injection molding machine will reduce the viscosity of the oil, increase leakage, and significantly reduce the volumetric efficiency of the pump and the efficiency of the entire system. Due to the low viscosity of the oil, the oil film of moving parts such as slide valves becomes thinner and cut, and the frictional resistance increases, resulting in increased wear.
3. Deformation of rubber seals: Excessive temperature rise of the injection molding machine will deform the rubber seals, accelerate aging and failure, reduce sealing performance and service time, and cause leakage. 4. Accelerate the oxidation and deterioration of the oil: Excessive temperature rise of the injection molding machine will accelerate the oxidation and deterioration of the oil, release asphalt substances, and reduce the use time of hydraulic oil. Deposits blocked orifices and slot valve ports, causing pressure valves to jam and metal pipes to stretch and bend until they broke.
5. Poor working quality of components: The temperature increase of the injection molding machine used by the injection molding manufacturer will cause poor working quality of the components, and the air dissolved in the oil will escape, causing cavitation, resulting in poor working performance of the hydraulic system.