发明名称 |
METHOD OF FORMING A CAST METAL ARTICLE |
摘要 |
A cast metal article is formed with an internal cavity. The internal cavity is formed by a ceramic core which is removed from the cast metal article to leave the cavity. The ceramic core is formed with a cavity to facilitate removal of the core from the cast metal article. To remove the core from the cast metal article, the cavity in the core is filled with a leaching liquid. |
申请公布号 |
US2012291983(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201113110362 |
申请日期 |
2011.05.18 |
申请人 |
GRAHAM LAWRENCE D.;BARRETT JAMES;DEPTOWICZ DON |
发明人 |
GRAHAM LAWRENCE D.;BARRETT JAMES;DEPTOWICZ DON |
分类号 |
B22C9/10;B22D25/00 |
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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