发明名称 Fugitive core tooling and method
摘要 A ceramic core is produced by introducing a fluid ceramic core material, such as a ceramic slurry, into a core-shaped cavity formed at least in part by one or more fugitive core tooling liners residing in a back-up body, removing the ceramic core from the cavity, and removing the one or more fugitive tooling liners from the back-up die body and discarding them. The fugitive tooling liners and optional tooling inserts are used in one or more production cycles (e.g. ceramic slurry injection cycle) to make a single or multiple ceramic cores and then replaced with fresh (un-used) tooling liners and optional inserts to make other ceramic cores.
申请公布号 EP2316593(A2) 申请公布日期 2011.05.04
申请号 EP20100188114 申请日期 2010.10.19
申请人 HOWMET CORPORATION 发明人 GRUNSTRA, ROBERT E.
分类号 B22C7/02;B22C9/04;B22C9/24 主分类号 B22C7/02
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