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How to adjust the mold temperature during mold injection molding

2023/02/13

Author: MULAN -Plastic Molding Manufacturer

Whether the mold temperature is appropriate during the injection molding process of the mold directly affects the dimensional accuracy, appearance, internal quality and product production efficiency of the injection molded product, which shows the importance of the mold temperature. Therefore, how to adjust the mold temperature during injection molding? ① Injection molding requires a temperature regulation system to meet product temperature requirements. According to different situations, the temperature regulation system can be divided into cooling system and heating system.

Generally speaking, the temperature of the plastic injected into the mold by injection molding is about 200 degrees, and the temperature when it is taken out of the mold cavity after injection molding is lower than 60 degrees. ② After thermoplastic plastic injection molding, 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 demoulded as soon as possible after cooling. ③ For molten plastics with low viscosity and good fluidity, such as polyethylene, nylon, polystyrene, etc.

, 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 mold is relatively thick, artificial cooling is required so that the injection molded parts can be formed as soon as possible and the production efficiency can be improved. ④ The temperature of each stage of the injection mold needs to be monitored by the injection molding personnel, and it is necessary to master the method of heating and cooling system to adjust the temperature of the mold.

Only with strict control can the injection molding process go smoothly and produce qualified products. Through the above content, we should have a general understanding of how to adjust the mold temperature during the injection molding process. Of course, the mold temperature in the injection molding process is not only a decisive factor in product design, mold design and manufacturing, but also closely related to the setting of injection molding process conditions.

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