JP3922231B2 - 真空精錬用取鍋の蓋 - Google Patents
真空精錬用取鍋の蓋 Download PDFInfo
- Publication number
- JP3922231B2 JP3922231B2 JP2003274003A JP2003274003A JP3922231B2 JP 3922231 B2 JP3922231 B2 JP 3922231B2 JP 2003274003 A JP2003274003 A JP 2003274003A JP 2003274003 A JP2003274003 A JP 2003274003A JP 3922231 B2 JP3922231 B2 JP 3922231B2
- Authority
- JP
- Japan
- Prior art keywords
- refractory
- lid
- mass
- carbon content
- ladle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Treatment Of Steel In Its Molten State (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
2 取鍋
3 ランス挿入孔
4 金枠
5 内周部分
6 外周部分
Claims (1)
- 溶鋼の真空精錬に供する取鍋上に載置する円盤状の蓋であって、上吹きランスの挿入孔周辺の内周部分を炭素含有量が5質量%以上のMgO−C耐火物にて蓋の中心から径方向に半径の65%以上の領域に形成するとともに、該内周部分の径方向外側の外周部分を炭素含有量が5質量%未満のMgO−Cr2O3耐火物または炭素含有量が5質量%未満のマグネシアドロマイト耐火物にて形成したことを特徴とする真空精錬用取鍋の蓋。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003274003A JP3922231B2 (ja) | 2003-07-14 | 2003-07-14 | 真空精錬用取鍋の蓋 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003274003A JP3922231B2 (ja) | 2003-07-14 | 2003-07-14 | 真空精錬用取鍋の蓋 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19360995A Division JP3528948B2 (ja) | 1995-07-28 | 1995-07-28 | 真空精錬用取鍋の蓋 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004043974A JP2004043974A (ja) | 2004-02-12 |
JP3922231B2 true JP3922231B2 (ja) | 2007-05-30 |
Family
ID=31712554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003274003A Expired - Fee Related JP3922231B2 (ja) | 2003-07-14 | 2003-07-14 | 真空精錬用取鍋の蓋 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3922231B2 (ja) |
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2003
- 2003-07-14 JP JP2003274003A patent/JP3922231B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2004043974A (ja) | 2004-02-12 |
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