Hot runner injection nozzle

摘要

Hot runner injection nozzle for plastics injection moulding devices with a nozzle body having a nozzle outlet opening, with a tubular main core inserted into the nozzle body, with a heating element arranged on the main core and with a core tip which projects into the nozzle outlet opening and is connected to the main core. In order to increase the resistance of this arrangement to acid and scratching, a bush of scratch-resistant and acid-resistant metal is inserted into the tubular main core as a lining thereof and introduces the plastic into the core tip.