Profiled plate heaters for injection molding nozzles

Details Profiled plate heaters for injection molding nozzles Profiled plate heaters for injection molding nozzles

1989-02-21

1990-01-09

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

29611, 26432815, 425562, 425563, 425564, 425566, B29C 4520, B29C 4572

Patent

active

048924741

ABSTRACT:
Injection molding nozzle having electric plate heaters mounted thereon. Insulative air spaces are provided according to a predetermined size, shape and pattern between the outer surfaces of the nozzle and the abutting inner surface of each heater. This provides heat transfer from the heaters to the nozzle according to a desired profile along the melt flow passage through the nozzle, depending upon the system configuration and the application.

REFERENCES:
patent: 4795337 (1989-01-01), Gellert

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