MOULD FOR AN ABRADABLE TRACK BENEATH THE INNER SHROUD OF AN AXIAL-FLOW TURBOMACHINE COMPRESSOR
    9.
    发明申请
    MOULD FOR AN ABRADABLE TRACK BENEATH THE INNER SHROUD OF AN AXIAL-FLOW TURBOMACHINE COMPRESSOR 审中-公开
    用于可转动轨道的模具延伸到轴流式涡轮压缩机的内部

    公开(公告)号:US20150354396A1

    公开(公告)日:2015-12-10

    申请号:US14728362

    申请日:2015-06-02

    Abstract: The invention relates to a mould for injecting a layer of abradable material, such as silicone, inside an inner shroud of an axial-flow turbomachine. The mould comprises a circular wall or tubular wall extending axially and two annular walls extending radially outwardly from the axial ends of the axial wall. Each radial wall of the mould comprises an annular hook in contact with the outer surface of the shroud so as to hold the mould against the shroud. The injection pressure presses the hooks against the shroud, providing a seal. The walls form an annular moulding cavity inside the inner shroud in combination with the inner shroud. The invention also relates to a method for moulding an abradable layer inside the shroud with the aid of the mould. The latter is deformed by spreading apart the hooks so as to fit over the shroud.

    Abstract translation: 本发明涉及一种用于在轴流式涡轮机的内护罩内注入耐磨材料层(如硅树脂)的模具。 模具包括轴向延伸的圆形壁或管状壁和从轴向壁的轴向端部径向向外延伸的两个环形壁。 模具的每个径向壁包括与护罩的外表面接触的环形钩,以将模具保持在护罩上。 注射压力将钩压在护罩上,提供密封。 壁与内护罩组合在内护罩内形成环形模腔。 本发明还涉及借助于模具在护罩内模制可磨损层的方法。 后者通过分开钩而变形,以便配合在护罩上。

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