Injection nozzle, especially for injection molding plastics, having nozzle core of steel with cavities containing high thermal conductivity metal, providing corrosion and wear resistance and good heat transfer

摘要

In an injection nozzle (10) with a nozzle core (11), surrounding a melt channel (12) and carrying a heater (14) on the outer mantle surface (16), and a nozzle tip (18) directed towards a mold inlet (F), the nozzle core is of steel and includes at least one cavity (H1, H2) at least partially filled with an inlay (21, 23) of metal with high thermal conductivity.