HOT RUNNER COINJECTION NOZZLE WITH THERMALLY SEPARATED MELT CHANNELS.

摘要

Coinjection molding nozzle apparatus and method includes structure and/orsteps whereby a first nozzle melt channel is kept thermally separated from a secondnozzle melt channel. Preferably, grooves in the nozzle body or a separate nozzlepipe keep the first and second nozzle melt channels thermally separated. Preferably,a highly thermally conductive nozzle tip is removably coupled to the nozzle bodyand includes first and second nozzle tip melt channels that merge together beforethe mold gate.