JP4407260B2 - 鋼の連続鋳造方法 - Google Patents
鋼の連続鋳造方法 Download PDFInfo
- Publication number
- JP4407260B2 JP4407260B2 JP2003398486A JP2003398486A JP4407260B2 JP 4407260 B2 JP4407260 B2 JP 4407260B2 JP 2003398486 A JP2003398486 A JP 2003398486A JP 2003398486 A JP2003398486 A JP 2003398486A JP 4407260 B2 JP4407260 B2 JP 4407260B2
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- Japan
- Prior art keywords
- mold
- magnetic field
- molten steel
- immersion nozzle
- flow
- 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 - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 title claims description 119
- 239000010959 steel Substances 0.000 title claims description 119
- 238000009749 continuous casting Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 13
- 238000007654 immersion Methods 0.000 claims description 70
- 238000005266 casting Methods 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 230000007547 defect Effects 0.000 description 23
- 238000007711 solidification Methods 0.000 description 21
- 230000008023 solidification Effects 0.000 description 21
- 230000004907 flux Effects 0.000 description 16
- 239000000843 powder Substances 0.000 description 12
- 230000001965 increasing effect Effects 0.000 description 11
- 210000001787 dendrite Anatomy 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000004088 simulation Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910000655 Killed steel Inorganic materials 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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- Continuous Casting (AREA)
Description
2 凝固シェル
3 溶鋼湯面
4 吐出流
5 鋳片
6 鋳型
7 鋳型長辺
8 鋳型短辺
9 タンディッシュ
10 スライディングノズル
11 浸漬ノズル
12 吐出孔
13 移動磁場印加装置
14 ピンチロール
15 モールドパウダー
16 上ノズル
17 固定板
18 摺動板
19 整流ノズル
20 溶鋼流出孔
21 鉄心
22 コイル
Claims (1)
- 鋳型の両短辺側から浸漬ノズル側に向かって移動する移動磁場を鋳型内の溶鋼に印加し、浸漬ノズルから吐出される溶鋼の吐出流に制動力を付与しながら鋳造する鋼の連続鋳造方法において、前記浸漬ノズルの吐出口の下端位置を、移動磁場印加装置の鉄心の下端よりも上方に位置させると同時に、浸漬ノズルの吐出角度が、下記の(1)式で定まる角度θD よりも上向きで且つ下記の(2)式で定まる角度θU よりも下向きの範囲内である浸漬ノズルを使用し、鋳型幅の1/4位置付近での鋳型厚みの中心位置における溶鋼湯面の溶鋼流速が0〜0.05m/secになるように、鋳造速度に応じて前記移動磁場印加装置で印加する磁場強度を調整して鋳造することを特徴とする鋼の連続鋳造方法。
θD :水平線を基準として下向きを正とし上向きを負とした、浸漬ノズルの吐出口の下端を起点として鋳片短辺位置での移動磁場印加装置の鉄心の下端位置までを測った角度(deg)
θU :水平線を基準として下向きを正とし上向きを負とした、浸漬ノズルの吐出口の下端を起点として鋳片短辺位置での移動磁場印加装置の鉄心の上端位置までを測った角度(deg)
H:移動磁場印加装置の鉄心の高さ(m)
Y1 :鋳型内湯面から浸漬ノズルの吐出口の下端までの距離(m)
Y2 :鋳型内湯面から移動磁場印加装置の鉄心の高さ方向中心位置までの距離(m)
W:鋳型の幅(m)
d:浸漬ノズルの吐出口部分における外径(m)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003398486A JP4407260B2 (ja) | 2003-11-28 | 2003-11-28 | 鋼の連続鋳造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003398486A JP4407260B2 (ja) | 2003-11-28 | 2003-11-28 | 鋼の連続鋳造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005152996A JP2005152996A (ja) | 2005-06-16 |
JP4407260B2 true JP4407260B2 (ja) | 2010-02-03 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2003398486A Expired - Lifetime JP4407260B2 (ja) | 2003-11-28 | 2003-11-28 | 鋼の連続鋳造方法 |
Country Status (1)
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JP (1) | JP4407260B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5014934B2 (ja) * | 2007-09-13 | 2012-08-29 | 新日本製鐵株式会社 | 鋼の連続鋳造方法 |
JP5472893B2 (ja) * | 2008-04-17 | 2014-04-16 | シャープ株式会社 | 情報処理システム、情報処理装置、情報処理方法、および範囲決定プログラム |
KR102324300B1 (ko) * | 2017-04-25 | 2021-11-09 | 제이에프이 스틸 가부시키가이샤 | 강의 연속 주조 방법 |
JP6981551B2 (ja) | 2019-02-19 | 2021-12-15 | Jfeスチール株式会社 | 連続鋳造機の制御方法、連続鋳造機の制御装置、及び鋳片の製造方法 |
WO2020170563A1 (ja) | 2019-02-19 | 2020-08-27 | Jfeスチール株式会社 | 連続鋳造機の制御方法、連続鋳造機の制御装置、及び鋳片の製造方法 |
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2003
- 2003-11-28 JP JP2003398486A patent/JP4407260B2/ja not_active Expired - Lifetime
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JP2005152996A (ja) | 2005-06-16 |
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