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

Inventor： Yingna WU ,  Huiyu XU ,  Bin WEI ,  Zhiwei WU

IPC: B22D15/00 ,  B22D29/00 ,  B22C9/04 ,  B22C1/02 ,  B22C9/10 ,  B22C9/22

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.