Importance

Loading Importance Indicators...

Abstract

A valve pin in an injection molding system having an axis and comprising:

a first body portion formed into a stem that is comprised of a first selected metal material, the stem comprising an elongated shaft having an upstream end interconnected to an actuator and a downstream end,a second body portion that is formed integrally together with the stem and is comprised of a second selected material different from the first material, the second body portion formed together with and extending distally from the downstream end of the stem into a distal-most extending tip end that is integral or unitary with the stem,the second selected material having a substantially greater degree of resistance to corrosion or wear or abrasion than the first selected material,the distal-most extending tip end being formed into a geometry or configuration that is complementary to a preselected geometry or configuration of a gate such that when the valve pin is moved into a gate closed position the distal-most extending tip end engages an interior surface of the gate to prevent injection fluid from flowing through the gate.

Loading the Abstract Image...

First Claim