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专利名称：Quasi self-destructive core for investment
casting
发明人：Song, Shihong G.,Giampapa, James S.,Meeson
Jr., John H.
申请号：EP13194178.3申请日：20131123公开号：EP2759359A3公开日：20180103
专利附图：
摘要：A composite core for forming a passage in an investment casting mold isprovided including a generally hollow structural element. The structural element is
configured to deform when a force is applied to an end thereof. A rigid shell element isformed about the structural element. The shell element extends beyond both an interiorsurface and an exterior surface of the structural element. The shell element is configuredto shatter when the structural element deforms.
申请人：Sikorsky Aircraft Corporation
地址：6900 Main Street Stratford, CT 06615 US
国籍：US
代理机构：Schmitt-Nilson Schraud Waibel Wohlfrom Patentanwälte Partnerschaft mbB
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