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composition of the hot runner system 1. hot runner plate: its main task is to send the melt from the main channel to each individual nozzle at a constant temperature. during the melt transfer process, the pressure drop of the melt is reduced as muc

problem: the cavity is not filled cause: the melting temperature is too low; the injection pressure is too small; the gate is too small; the hot nozzle is too small; the mold temperature is too low; the nozzle opening of the melt cylinder is too small;

as a common component of the mold system, the hot runner system can effectively improve the quality of plastic products, improve production efficiency, and make higher returns on capital investment. insert molding technology, co-injection molding techn