| 发明名称 |
Easily removable foundry cores - of porous carbon |
| 摘要 |
<p>The cores for use in casting moulds for the foundry industry consist of 80% volume perosity C. The C is made pref. by the carbonisation of plastic foam. They are removed by burning out.</p> |
| 申请公布号 |
FR2137836(A1) |
申请公布日期 |
1972.12.29 |
| 申请号 |
FR19720017066 |
申请日期 |
1972.05.12 |
| 申请人 |
ALCAN ALUMINIUMWERKE |
发明人 |
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| 分类号 |
B22C9/10;(IPC1-7):22C9/00 |
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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