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公开(公告)号:US20170173678A1
公开(公告)日:2017-06-22
申请号:US15369948
申请日:2016-12-06
Applicant: General Electric Company
CPC classification number: B22D15/00 , B22C1/02 , B22C9/04 , B22C9/108 , B22C9/22 , B22C9/24 , B22D19/0072 , B22D29/00
Abstract: The present invention discloses a mold core assembly. The mold core assembly includes at least one core. The core comprises a main body member and a high temperature-resistant material with a melting point over 1500° C., the length-diameter ratio of the main body member is greater than 50, and the main body member includes a high melting point metal with a melting point over 1500° C. The mold core assembly also includes a shell mold, wherein the shell mold encloses the core to form a cavity between the shell mold and the core, so as to accommodate a molten casting metal. The present invention further discloses an investment casting method.