Invention Grant
US07972132B2 Injection molding valve gated hot runner nozzle 有权
注塑阀浇口热流道喷嘴

Injection molding valve gated hot runner nozzle
Abstract:
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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