In the plastic injection molding process, whether the temperature is too high or too low can have adverse effects on the molded injection products, severely affecting the discard rate of the molded injection products. Therefore, temperature control during the injection molding process is very important.
During the injection molding production process, plastic raw materials, ink powder, runner materials, molds, injection molding machines, peripheral equipment, fixture devices, sprayers, various auxiliary materials, and packaging materials are required. This brings a significant workload and certain difficulties to the management of injection molding factories. Compared to other industries or sectors, the requirements for managers at all levels in injection molding factories are higher. If the temperature during injection molding is too high, it may reduce the viscosity of the oil and increase leakage. At this time, the volumetric efficiency of the pump and the overall efficiency of the system will also significantly decrease. When the viscosity decreases, the oil film on working components such as valve columns becomes thinner or is blocked. At this time, friction resistance also increases, leading to greater wear.
What are the negative effects of high temperature on injection molding?
If the temperature during injection molding is too high, the working quality of the injection components will deteriorate, and the air dissolved in the oil will be expelled, causing cavitation, which will then reduce the working performance of the hydraulic system.
In hydraulic components, parts with different thermal expansion coefficients must shrink with the apprentice, which can cause the main machine to block, leading to operational failures and severely affecting the transmission accuracy of the hydraulic system, resulting in a decline in the working quality of the injection molded parts.
 

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