| 发明名称 |
METHODS FOR MANUFACTURING INVESTMENT CASTING SHELLS |
| 摘要 |
An at least two step heating process is used to strengthen the shell of an investment casting mold including a refractory metal core. The first stage may occur under otherwise oxidizing conditions at a low enough temperature to avoid substantial core oxidation. The second stage may occur under essentially non-oxidizing conditions at a higher temperature.
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| 申请公布号 |
US2005230078(A1) |
申请公布日期 |
2005.10.20 |
| 申请号 |
US20040825396 |
申请日期 |
2004.04.15 |
| 申请人 |
SNYDER JACOB A;BEALS JAMES T;PERSKY JOSHUA E;VERNER CARL R;KENNARD LEA D;MANDICH DAWN D;MURRAY STEPHEN D |
发明人 |
SNYDER JACOB A.;BEALS JAMES T.;PERSKY JOSHUA E.;VERNER CARL R.;KENNARD LEA D.;MANDICH DAWN D.;MURRAY STEPHEN D. |
| 分类号 |
B22C9/04;B22C9/10;B22C9/12;B22C13/08;(IPC1-7):B22C9/04 |
主分类号 |
B22C9/04 |
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