Gas blowing plug and manufacturing method therefor |
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| 申请号 | EP00115729.6 | 申请日 | 2000-07-21 | 公开(公告)号 | EP1077266A3 | 公开(公告)日 | 2002-11-13 |
| 申请人 | TOKYO YOGYO KABUSHIKI KAISHA; | 发明人 | Aramaki, Keizo, c/o Tokyo Yogyo K.K.; Yoshida, Tsuyoshi, c/o Tokyo Yogyo K.K.; | ||||
| 摘要 | There are provided a gas blowing plug with a long life and a manufacturing method therefor. The gas blowing plug for blowing gas from the bottom of a molten metal vessel comprises a slit-shaped gas passage ranging from the bottom to the top of the plug. The gas passage is formed by a continuous or discontinuous slit-shaped gas passage in the horizontal cross section of the plug, and is formed by a slit-shaped gas passage continuous from the bottom to the top of the plug and a discontinuous slit-shaped gas passage in the vertical cross section of the plug. The cross-sectional shape of a tubular body can be a star shape, for example. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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