During the plastic injection molding process, temperatures that are too high or too low can have adverse effects on the molded injection molded products, seriously affecting their disposal. Therefore, temperature control during injection molding is very important
Plastic raw materials, toner, nozzle materials, molds, injection molding machines, peripheral equipment, fixture devices, spray, various auxiliary materials and packaging materials are needed in the injection molding production process, which brings a lot of workload and certain difficulty to the management of the injection molding plant. Compared with other professions or parts, the requirements for managers at all levels of the injection molding plant are higher,
Excessive injection molding temperature may decrease the viscosity of the oil, increase leakage, and significantly reduce the volumetric power of the pump and the overall power of the system. When the viscosity decreases, the oil film of operating components such as valve columns becomes thinner or the inclined surface is blocked. At this moment, the frictional resistance also increases, and the wear also increases.
What are the negative effects of high temperature on injection molding?
If the injection molding processing temperature is too high, the working quality of the injection parts will deteriorate, and the air dissolved in the oil will be discharged, resulting in cavitation and a decrease in the working performance of the hydraulic system.
It is necessary for parts with different thermal expansion coefficients in hydraulic components to become smaller with the help of apprentices, resulting in blockage of the main engine, causing operational failures, seriously affecting the transmission accuracy of the hydraulic system, and leading to a decrease in the quality of injection molded parts.
Excessive heating during injection molding can promote the oxidation and transformation of oil, analyze the substance of asphalt, and reduce the lifespan of hydraulic oil. In addition, the analyzed substance may block the buffering small holes and gap type valve ports, causing the pressure valve to be blocked and unable to operate, and the metal pipeline may extend and bend or break.
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