Injection molding valve gated hot runner nozzle

Details Injection molding valve gated hot runner nozzle Injection molding valve gated hot runner nozzle

B - Operations, Transporting

29

C

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

Patent

CA 2681690

A valve gated hot runner nozzle with at least two transition members made of different materials located between a nozzle tip and a mold gate component to provide a thermal transition region. A first transition member in contact with the nozzle tip is less thermally conductive than a second transition member in contact with the mold gate component. The valve pin when in the closed position makes sealing contact with at least the second transition member such that cooling from the mold gate component is transferred to the valve pin to cool the melt in the mold gate area.

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