| 发明名称 |
Investment casting cores and their use in investment casting |
| 摘要 |
<p>A method involves forming a core assembly (90). The forming includes molding a first ceramic core (60) over a first refractory metal core (20) to form a core subassembly (72). The subassembly (72) is assembled to a second ceramic core (80).</p> |
| 申请公布号 |
EP1914030(A1) |
申请公布日期 |
2008.04.23 |
| 申请号 |
EP20070254133 |
申请日期 |
2007.10.18 |
| 申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
LUCZAK, BLAKE J.;BEALS, JAMES T.;HUDSON, ERIC A.;COUCH, ERIC L. |
| 分类号 |
B22C9/10;B22C9/04;B22C9/12 |
主分类号 |
B22C9/10 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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