发明名称 |
Ceramic shell mold for investment casting and method of making the same. |
摘要 |
<p>A ceramic shell mold and method of making the same. The ceramic shell mold includes a facecoat layer comprised of a first ceramic material. A plurality of alternating layers are formed overlaying the facecoat layer. The alternating layers are comprised of a second ceramic material and a third ceramic material, the third ceramic material having thermophysical properties different than the second ceramic material. The second ceramic material and the third ceramic material are preferably a zircon-based material and an alumina-based material, respectively. The resultant ceramic shell mold has a greater high temperature creep resistance than a shell mold formed solely from the second ceramic material or solely from the third ceramic material.</p> |
申请公布号 |
EP0347344(A2) |
申请公布日期 |
1989.12.20 |
申请号 |
EP19890420208 |
申请日期 |
1989.06.12 |
申请人 |
HOWMET CORPORATION |
发明人 |
JOHNSON, PAUL RANDOLPH;LASSOW, ELIOT SCOTT |
分类号 |
B22C9/04;B22C9/06 |
主分类号 |
B22C9/04 |
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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