JPWO2005018851A1 - 鋼の連続鋳造用浸漬ノズルおよびそれを用いる鋼の連続鋳造方法 - Google Patents
鋼の連続鋳造用浸漬ノズルおよびそれを用いる鋼の連続鋳造方法 Download PDFInfo
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Abstract
Description
2 パウダーライン部
3 環状耐火物層
4 旋回羽根
5 流入口
6 吐出口
7 ガス吐出部
8 ガス供給口
9 スリット
10 中間ノズル(下ノズル)
11 スライディングノズルプレート
12 上ノズル
13 溶鋼容器
Claims (13)
- 内孔に溶鋼流旋回用羽根を設けた溶鋼の連続鋳造のための浸漬ノズルにおいて、溶鋼と接触する内孔壁面層の少なくとも一部をCaOとMgOとを含み、且つ、CaOとMgOとの重量比および見掛け気孔率を制御した耐火物によって構成した鋼の連続鋳造用浸漬ノズル。
- CaOとMgOとを含む耐火物がカーボン質材料を含み、MgOとCaOの重量比の合計が65質量%以上であり、CaO/MgOの重量比が0.4〜2.3である請求項1に記載の鋼の連続鋳造用浸漬ノズル。
- CaOとMgOとを含む耐火物の見掛け気孔率が5〜25%であり、且つ、厚さが3〜20mmの環状の耐火物である請求項2に記載の鋼の連続鋳造用浸漬ノズル。
- CaOとMgOとを含む耐火物に含まれるカーボン質材料の含有量が1〜35質量%である請求項2または請求項3に記載の鋼の連続鋳造用浸漬ノズル。
- CaOとMgOとを含む耐火物が、B4C、SiC、Al、Si等を5質量%以内で含む請求項2または請求項4に記載の鋼の連続鋳造用浸漬ノズル。
- 内孔に配置した溶鋼流旋回用羽根は、テープ状に成形した耐火物を水平面に対して80〜180°にひねった螺旋状に形成したものである請求項1に記載の鋼の連続鋳造用浸漬ノズル。
- 内孔に配置した溶鋼流旋回用羽根は、内孔に設けた段部または突起に設けられている請求項1または請求項6に記載の鋼の連続鋳造用浸漬ノズル。
- 内孔に設置した旋回羽根より上方箇所にガス吐出部を設けた請求項7に記載の鋼の連続鋳造用浸漬ノズル。
- CaOとMgOとを含む耐火物を、溶鋼流旋回用羽根の下部側も含め内層全部に設けた請求項7または請求項8に記載の鋼の連続鋳造用浸漬ノズル。
- 溶鋼流旋回用羽根がパウダーラインに対応する位置より上側位置の内孔に設置されている請求項7または請求項9に記載の鋼の連続鋳造用浸漬ノズル。
- 内孔に設置した溶鋼流旋回用羽根より上方箇所に設けられたガス吐出部から溶鋼中に噴出される鋼不活性ガスが、ガス供給口から環状耐火物層の背部のスリットを通って供給される請求項8から請求項10のいずれかに記載の鋼の連続鋳造用浸漬ノズル。
- 内孔に溶鋼流旋回用羽根を設け、溶鋼と接触する内孔壁面層の少なくとも一部を環状の耐火物層によって形成した連続鋳造用ノズルを用いる鋼の連続鋳造方法であって、
前記鋼が清浄鋼であって、
且つ、
前記耐火物層が、カーボン質を含み、MgOとCaOの成分を合計で65質量%以上含有し、そのCaO/MgOの重量比が0.4〜2.3であり、且つ、見掛け気孔率が5〜25%である清浄鋼の連続鋳造方法。 - 内孔に設けた溶鋼流旋回用羽根より上方の、溶鋼容器の上ノズル部を含む間の箇所にガス吐出部が設けられており、
内孔を流下する溶鋼に前記ガス吐出部から不活性ガスを噴出する請求項12に記載の鋼の連続鋳造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2003298232 | 2003-08-22 | ||
JP2003298232 | 2003-08-22 | ||
PCT/JP2004/012079 WO2005018851A1 (ja) | 2003-08-22 | 2004-08-23 | 鋼の連続鋳造用浸漬ノズルおよびそれを用いる鋼の連続鋳造方法 |
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Publication Number | Publication Date |
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JPWO2005018851A1 true JPWO2005018851A1 (ja) | 2007-11-01 |
JP4343907B2 JP4343907B2 (ja) | 2009-10-14 |
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JP2005513327A Expired - Fee Related JP4343907B2 (ja) | 2003-08-22 | 2004-08-23 | 鋼の連続鋳造用浸漬ノズルおよびそれを用いる鋼の連続鋳造方法 |
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Country | Link |
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US (1) | US7275584B2 (ja) |
EP (1) | EP1671721B1 (ja) |
JP (1) | JP4343907B2 (ja) |
KR (1) | KR100767742B1 (ja) |
CN (1) | CN100372633C (ja) |
BR (1) | BRPI0413794B1 (ja) |
DE (1) | DE602004022073D1 (ja) |
WO (1) | WO2005018851A1 (ja) |
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JP5645736B2 (ja) * | 2011-03-31 | 2014-12-24 | 黒崎播磨株式会社 | 連続鋳造用浸漬ノズル |
KR101275684B1 (ko) * | 2011-08-12 | 2013-06-20 | 조선내화 주식회사 | 주조용 침지노즐 및 이를 구비하는 연속주조장치 |
IN2014KN00770A (ja) * | 2011-12-01 | 2015-10-02 | Krosakiharima Corp | |
EP2835193A1 (en) * | 2013-08-05 | 2015-02-11 | Refractory Intellectual Property GmbH & Co. KG | Refractory ceramic nozzle |
CN104070156A (zh) * | 2014-07-08 | 2014-10-01 | 辽宁科技大学 | 一种可产生旋流的连铸浸入式水口 |
JP6663230B2 (ja) * | 2016-01-25 | 2020-03-11 | 黒崎播磨株式会社 | ノズル構造体 |
JP6279052B1 (ja) * | 2016-10-27 | 2018-02-14 | 黒崎播磨株式会社 | マグネシアカーボンれんが及びその製造方法 |
EP3488949A1 (en) | 2017-11-22 | 2019-05-29 | Refractory Intellectual Property GmbH & Co. KG | Submerged entry nozzle |
JP6726651B2 (ja) * | 2017-11-24 | 2020-07-22 | 明智セラミックス株式会社 | 連続鋳造用ノズルの製造方法 |
EP3900855A1 (en) | 2020-04-21 | 2021-10-27 | Refractory Intellectual Property GmbH & Co. KG | Rotatable insert and submerged nozzle |
CN111618289A (zh) * | 2020-05-19 | 2020-09-04 | 浙江自立高温科技股份有限公司 | 上水口及中间包 |
CN112427633B (zh) * | 2020-10-20 | 2022-05-20 | 广东韶钢松山股份有限公司 | 一种大包长水口吹扫方法及装置 |
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- 2004-08-23 WO PCT/JP2004/012079 patent/WO2005018851A1/ja active Application Filing
- 2004-08-23 JP JP2005513327A patent/JP4343907B2/ja not_active Expired - Fee Related
- 2004-08-23 EP EP04772040A patent/EP1671721B1/en not_active Expired - Fee Related
- 2004-08-23 US US10/569,006 patent/US7275584B2/en not_active Expired - Fee Related
- 2004-08-23 KR KR1020067003656A patent/KR100767742B1/ko not_active IP Right Cessation
- 2004-08-23 DE DE602004022073T patent/DE602004022073D1/de active Active
- 2004-08-23 CN CNB2004800240993A patent/CN100372633C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BRPI0413794B1 (pt) | 2012-01-24 |
BRPI0413794A (pt) | 2006-11-07 |
KR20060036484A (ko) | 2006-04-28 |
CN100372633C (zh) | 2008-03-05 |
EP1671721A1 (en) | 2006-06-21 |
WO2005018851A1 (ja) | 2005-03-03 |
EP1671721A4 (en) | 2007-01-24 |
US7275584B2 (en) | 2007-10-02 |
JP4343907B2 (ja) | 2009-10-14 |
KR100767742B1 (ko) | 2007-10-17 |
US20060214029A1 (en) | 2006-09-28 |
DE602004022073D1 (de) | 2009-08-27 |
EP1671721B1 (en) | 2009-07-15 |
CN1839004A (zh) | 2006-09-27 |
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