Heated nozzle for plastic injection and manufacturing method therefor.

摘要

The heat of a heater sheath wire (14) is both the heat that is directly transmitted to a heated nozzle main body (10) and the heat that is indirectly transmitted to the heated nozzle main body (10) via a metal strip (15) and both provide the effect of efficiently heating the heated nozzle main body (10) and producing a significant increase in the performance. The heated nozzle for plastic injection molding according to the present invention is configured so as to have a spiral-shaped groove (12) on its outer periphery, the heater sheath wire (14) that is pressed into the spiral-shaped groove (12) and the metal strip (15) that is wound around the surface of the outer periphery of the heated nozzle main body (10) and is welded to the heated nozzle main body (10).