| 摘要 |
An injection mold apparatus for forming molded plastic articles comprising a polymer supply source; a mold cavity; conduit connecting the mold cavity and the supply source; an injection assembly for injecting molten polymer into the mold cavity and a gate valve associated with the conduit and having an elongate central passage terminating in an outlet orifice and a needle positioned in skewed relationship with the elongate central passage and selectively insertable into the orifice in a closed position and retractable from the orifice and the elongate central passage to provide an unrestricted polymer flow in an open position.
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