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    • 16. 发明公开
    • COINJECTION HOT RUNNER INJECTION MOLDING SYSTEM
    • HEISSKANAL-SPRITZGUSSSYSTEM MIT KOINJEKTION
    • EP2618982A2
    • 2013-07-31
    • EP11826278.1
    • 2011-09-21
    • Mold-Masters (2007) Limited
    • TEN, ValeryFAIRY, FabriceBABIN, DenisGAMMON, Scott
    • B29C45/22
    • B29C45/20B29C45/1603B29C45/1607B29C45/1735B29C45/2806B29C2045/1609E02B3/06E02B3/066
    • A coinjection molding apparatus is disclosed that provides a skin material melt stream and a core material melt stream to a nozzle. A nozzle tip of the nozzle defines a central skin material melt passage for receiving the skin material melt stream, an annular core material melt passage for receiving the core material melt stream and an annular outer layer melt passage, which receives a portion of the skin material melt stream from the central skin material melt passage. The skin material melt stream from the central skin material melt passage forms an inner layer of a molded article, the core material melt stream from the core material melt passage forms a core layer of the molded article, and the skin material melt stream from the outer layer melt passage forms an outer layer of the molded article, wherein the three melt streams combine prior to entering a mold cavity.
    • 公开了一种共注射成型装置,其将表皮材料熔体流和芯材料熔体流提供给喷嘴。 喷嘴的喷嘴尖限定了用于接收表层材料熔体流的中心表层材料熔体通道,用于容纳芯材料熔体流的环形芯材熔体通道和一个环形外层熔体通道,其接收一部分表皮材料 熔体流从中心皮肤材料熔体通道。 来自中心表皮材料熔体通道的表层材料熔融流体形成模塑制品的内层,芯材熔体流从芯材熔体通道形成模塑制品的芯层,并且表皮材料从外部熔化 层熔融通道形成模制品的外层,其中三个熔体流在进入模腔之前结合。