Heated injection molding nozzle with alternate thermocouple...

Details Heated injection molding nozzle with alternate thermocouple... Heated injection molding nozzle with alternate thermocouple...

B - Operations, Transporting

29

C

B29C 45/20 (2006.01) B29C 45/27 (2006.01) B29C 45/74 (2006.01) B29C 45/78 (2006.01)

Patent

CA 2102854

A heated injection molding nozzle having a melt channel which branches outwardly to several spaced edge gates. The nozzle has alternate thermocouple element receiving bores spaced longitudinally along a temperature gradient extending between the heating element and the front end of the nozzle. The nozzle facilitates the temperature control of materials having different thermal characteristics. When molding an amorphous material, a temperature somewhat lower than the prescribed operating temperature is desirable so the thermocouple element is mounted in the rearward bore closer to the heating element. If it is critical to maintain the temperature of the melt near the prescribed operating temperature for a material such as a crystalline material, the thermocouple element is received in the forward bore further along the temperature gradient from the heating element.

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