| 摘要 |
In a hot channel injection molding nozzle comprising a nozzle body including a mass flow channel for a melt to be in-jected into a mold, wherein the nozzle body has a nozzle outlet opening at one end and an inlet opening disposed at one side of the other end of the nozzle body and a valve needle extending through the nozzle body to the outlet opening for blocking the melt flow, a valve needle guide sleeve is disposed in the noz-zle body so as to delimit the mass flow channel in the area of the inlet opening with the valve needle extending through the guide sleeve.
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