Key technologies of hot runner systems

The hot runner system keeps the plastic in a molten state from the nozzle of the injection machine to the mold cavity by heating. After the injection is completed, it is only necessary to take out the product without generating sprue solidification. What are the keys to mastering this advanced浇注system? From the process of plastic injection, we can know that the molten plastic flows through the main nozzle, runner plate, and sub-nozzle in the hot runner system, and finally reaches the mold cavity. Therefore, how to keep the plastic in a molten state with balanced temperature in the main nozzle, runner plate, and sub-nozzle, and how to thermally insulate the lower temperature mold and the higher temperature hot runner system are the key technologies of the hot runner system.