| 发明名称 |
Evaporative pattern casting process |
| 摘要 |
An improved expendable pattern casting process and an improved refractory composition for coating expendable patterns used in the process containing substantially spherical refractory material.
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| 申请公布号 |
US4785870(A) |
申请公布日期 |
1988.11.22 |
| 申请号 |
US19870090758 |
申请日期 |
1987.08.28 |
| 申请人 |
ASHLAND OIL, INC. |
发明人 |
SNOOK, ROBERT L. |
| 分类号 |
B22C9/04;B22C7/02;(IPC1-7):B22C7/02 |
主分类号 |
B22C9/04 |
| 代理机构 |
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