| 发明名称 |
Blast furnace hearth |
| 摘要 |
A blast furnace hearth, or at least its internal surface layer, is built of carbon bricks whose pores have been reduced in size by an Si-N-O composition formed in them.
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| 申请公布号 |
US4272062(A) |
申请公布日期 |
1981.06.09 |
| 申请号 |
US19790099025 |
申请日期 |
1979.11.30 |
| 申请人 |
NIPPON STEEL CORPORATION |
发明人 |
FUZIWARA, SHIGERU;TAMURA, SHINICHI |
| 分类号 |
C04B35/52;C04B35/532;C21B7/06;(IPC1-7):F27B14/00 |
主分类号 |
C04B35/52 |
| 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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