JP4437101B2 - 連続鋳造用浸漬ノズル - Google Patents
連続鋳造用浸漬ノズル Download PDFInfo
- Publication number
- JP4437101B2 JP4437101B2 JP2005084810A JP2005084810A JP4437101B2 JP 4437101 B2 JP4437101 B2 JP 4437101B2 JP 2005084810 A JP2005084810 A JP 2005084810A JP 2005084810 A JP2005084810 A JP 2005084810A JP 4437101 B2 JP4437101 B2 JP 4437101B2
- Authority
- JP
- Japan
- Prior art keywords
- inner hole
- refractory
- immersion nozzle
- discharge port
- boundary line
- 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.)
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- 238000007654 immersion Methods 0.000 title claims description 29
- 238000009749 continuous casting Methods 0.000 title claims description 13
- 239000000463 material Substances 0.000 claims description 33
- 239000010459 dolomite Substances 0.000 claims description 16
- 229910000514 dolomite Inorganic materials 0.000 claims description 16
- 239000011819 refractory material Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 30
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 22
- 239000000395 magnesium oxide Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 238000005266 casting Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 230000005499 meniscus Effects 0.000 description 6
- 230000003405 preventing effect Effects 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229910000655 Killed steel Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
2:注入口
3:注入口側の内孔体用耐火物
4:吐出口側の内孔体用耐火物
5:二次メニスカス
A:材質境界線
Claims (4)
- 連続鋳造用浸漬ノズル内孔の吐出口上端から注入口側に材質境界線があり、この材質境界線よりも吐出口側の内孔の少なくとも一部と前記材質境界線よりも注入口側の内孔の少なくとも一部に、ドロマイトクリンカーを含有し、カーボン含有量が10質量%以下である内孔体用耐火物を内装した連続鋳造用浸漬ノズルにおいて、
前記材質境界線より注入口側に内装した前記内孔体用耐火物のCaO含有量が前記材質境界線より吐出口側に内装した前記内孔体用耐火物のCaO含有量よりも多い連続鋳造用浸漬ノズル。 - 前記材質境界線は、吐出口上端から注入口側に向かって150mmの範囲にあり、前記材質境界線よりも吐出口側の内孔に内装した前記内孔体用耐火物のCaO含有量が20質量%以上40質量%未満、前記材質境界線よりも注入口側の内孔に内装した前記内孔体用耐火物のCaO含有量が40質量%以上であることを特徴とする請求項1に記載の連続鋳造用浸漬ノズル。
- 前記材質境界線が吐出口上端から注入口側に向かって20mm以上150mm以下の範囲にある請求項1または2に記載の連続鋳造用浸漬ノズル。
- 内装した内孔体用耐火物の見掛け気孔率が15%以上30%以下である請求項1または2に記載の連続鋳造用浸漬ノズル。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005084810A JP4437101B2 (ja) | 2005-03-23 | 2005-03-23 | 連続鋳造用浸漬ノズル |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005084810A JP4437101B2 (ja) | 2005-03-23 | 2005-03-23 | 連続鋳造用浸漬ノズル |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006263769A JP2006263769A (ja) | 2006-10-05 |
JP4437101B2 true JP4437101B2 (ja) | 2010-03-24 |
Family
ID=37200277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005084810A Active JP4437101B2 (ja) | 2005-03-23 | 2005-03-23 | 連続鋳造用浸漬ノズル |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4437101B2 (ja) |
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2005
- 2005-03-23 JP JP2005084810A patent/JP4437101B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2006263769A (ja) | 2006-10-05 |
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