Whether the temperature of the mold is appropriate during the injection molding process will directly affect the dimensional accuracy, appearance, internal quality and product production efficiency of the injection molded product, which shows the importance of the mold temperature. So, how to adjust the mold temperature during injection molding?
- Injection molding requires a temperature adjustment system to meet the product temperature requirements. The temperature regulation system can be divided into cooling system and heating system according to different situations. Under normal circumstances, the temperature of the plastic injected into the mold is about 200 degrees, and the temperature of the injection molded parts when they are taken out from the mold cavity after molding is below 60 degrees.
- After the thermoplastic is injection molded, the mold must be effectively cooled, so that the heat of the plastic can be quickly transferred to the mold, so that the injection molded parts can be demolded as soon as possible after cooling.
- For those plastics with low viscosity and good fluidity, such as polyethylene, nylon and polystyrene, if the side wall of the injection molded part is relatively thin, the mold can be cooled naturally. If the side wall of the injection molding mold is relatively thick, it needs to be cooled manually, so that the injection molded parts can be shaped as soon as possible and improve the production efficiency.
- The temperature of each stage of the injection mold needs to be monitored by the injection molding personnel. It is necessary to master the method of adjusting the temperature of the mold by the heating and cooling system. Only through strict control can the injection molding process proceed smoothly and produce qualified products.