| 发明名称 |
Use of polystyrene foam as lost pattern in the production of metal castings |
| 摘要 |
For the production of metal castings, polystyrene foam is used as lost pattern, the surface of which polystyrene foam has been smoothed by applying a wax layer or a plastic film or foam film.
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| 申请公布号 |
DE3619170(A1) |
申请公布日期 |
1987.12.10 |
| 申请号 |
DE19863619170 |
申请日期 |
1986.06.06 |
| 申请人 |
BASF AG |
发明人 |
VON BEHR,EKHARD FRIEDRICH |
| 分类号 |
B22C7/02;(IPC1-7):B22C7/02 |
主分类号 |
B22C7/02 |
| 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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