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    • 19. 发明专利
    • Ceramic core with composite insert for casting airfoil
    • 具有复合插件的陶瓷芯铸造气翼
    • JP2012254479A
    • 2012-12-27
    • JP2012106508
    • 2012-05-08
    • Howmet Corpハウメット コーポレイションHowmet Corporation
    • MUELLER BOYDROGERS DARRENMOLAMPHY TIMOTHY J
    • B22C9/10B22C9/22
    • B28B7/342B22C7/02B22C7/026B22C7/06B22C9/04B22C9/10B29C33/3807B29C33/40B29C45/0013B29C45/14467B29C2045/1477F05B2230/21
    • PROBLEM TO BE SOLVED: To provide a composite ceramic core for casting an airfoil cast article having multi-wall, such as an airfoil cast article having multi-casting wall and multi-pass.SOLUTION: A single- or multi-wall ceramic core is made by preforming at least one fugitive core insert, then forming a fugitive insert in-situ by introducing a fluid fugitive pattern material into a composite core insert mold whereby the fugitive core inserts are integrally connected as a single composite core insert that includes features to form internal passage surfaces in the core when the composite core insert is selectively removed. The composite core insert forms internal passage surfaces in the core when being removed. The composite core insert is placed in a core molding die cavity MC1, and a fluid ceramic material is introduced into the die cavity to form the ceramic core body incorporating the fugitive composite core insert therein.
    • 要解决的问题:提供一种用于铸造具有多壁的翼型铸造制品的复合陶瓷芯,例如具有多浇铸壁和多道次的翼型铸造制品。 解决方案:通过预先形成至少一个短片芯插件,然后通过将流体短片图案材料引入到复合芯插入模具中来原地形成短片插入件,从而制成单壁或多壁陶瓷芯,由此短暂核心 插入件作为单个复合芯插入件整体连接,当复合芯插入件被选择性地移除时,其包括在芯中形成内部通道表面的特征。 复合芯插入件在移除时在芯体中形成内部通道表面。 将复合芯插入件放置在芯成型模腔MC1中,并且将流体陶瓷材料引入模腔中以形成其中结合有短片复合芯插入件的陶瓷芯体。 版权所有(C)2013,JPO&INPIT