WO2009113662A1 - 上ノズル - Google Patents
上ノズル Download PDFInfo
- Publication number
- WO2009113662A1 WO2009113662A1 PCT/JP2009/054877 JP2009054877W WO2009113662A1 WO 2009113662 A1 WO2009113662 A1 WO 2009113662A1 JP 2009054877 W JP2009054877 W JP 2009054877W WO 2009113662 A1 WO2009113662 A1 WO 2009113662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- log
- inner hole
- molten steel
- upper nozzle
- shape
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Definitions
- the present invention relates to an upper nozzle fitted to a ladle or tundish tuyere, and more particularly to an upper nozzle capable of suppressing the occurrence of deposits.
- alumina or the like adheres to the inner hole through which the molten steel passes and becomes a deposit, reducing the flow path, hindering operation, and sometimes the flow path In some cases, it is completely blocked and cannot be operated.
- a method for preventing the generation of deposits for example, a method is proposed in which a gas blowing port is provided and an inert gas is blown (for example, see Patent Document 1 or 2).
- Patent Documents 1 and 2 has a complicated structure because of gas blowing, and it takes time to manufacture and requires gas for operation, leading to an increase in cost. Further, even with a gas blowing type nozzle, it was difficult to completely prevent the generation of deposits.
- an upper nozzle for example, it is composed of a taper portion formed above and a straight portion formed below (see FIG. 12A), or continues from the taper portion to the straight portion.
- An arcuate portion (see FIG. 13A) is widely used.
- FIGS. 2A to 13A shows a state in which the upper nozzle is installed in a sliding nozzle device (hereinafter referred to as “SN device”). And below the dashed line is the inner hole of the upper plate. Further, the lower side of the portion where the inner hole is displaced is the inner hole of the intermediate plate or the lower plate.
- Patent Document 3 suppresses entrainment of slag and mixing of oxygen, nitrogen, etc. by not creating a vacuum portion at the center of the molten steel flow, and does not prevent the generation of deposits. Further, in Patent Document 3, the converter (smelting vessel) is targeted, and the effect of preventing slag entrainment or the like is important at the end of molten steel discharge (about 1 minute at the end when the steel output time is 5 minutes). . On the other hand, in order to prevent the occurrence of deposits in a ladle or a tundish (casting container), it is necessary to exert an effect particularly at the end of the molten steel discharge, and the time when the effect is expected is also different.
- the inner hole shape capable of creating a flow of molten steel with less energy loss (smooth) and suppressing the generation of deposits. It aims at providing the upper nozzle provided with.
- the present invention is an upper nozzle to be fitted to a tundish or ladle tuyere, where the nozzle length is L, the calculated head height is H, and the radius at the distance z from the upper end is r (z ),
- the shape of at least 80% of the cross-sectional shape of the wall surface of the inner hole cut along the axis of the inner hole through which the molten steel passes can be the above-mentioned shape.
- FIG. 1 is an example of a cross-sectional view of the upper nozzle according to the present invention cut along the axial direction of an inner hole through which molten steel passes.
- an upper nozzle 10 according to the present invention includes an inner hole 11 through which molten steel passes, and the inner hole has a large-diameter portion 12 fitted into a tundish or ladle tuyere, and molten steel.
- emits and the inner-hole wall surface 14 which continues from the large diameter part 12 to the small diameter part 13 are comprised.
- the smooth surface is a curve having a continuous differentiation with respect to r (z), that is, a surface composed of a curved surface and a tangent to the curved surface.
- the inventor of the present application thinks that a smooth (constant) molten steel flow with less energy loss is created by stabilizing the inner wall surface pressure distribution of the nozzle with respect to the height direction, and the inner hole as described below.
- the present inventors have found an inner hole shape of the present invention that can suppress a rapid change in pressure on the wall surface.
- the energy for obtaining the molten steel flow velocity is basically the molten steel head in the tundish
- the flow velocity v (z) of the molten steel at a position z from the upper end of the inner hole is expressed as follows: gravitational acceleration is g, molten steel head height is H ′, and flow coefficient is k.
- v (z) k (2g (H ′ + z)) 1/2 It is represented by
- a (z) / A (L) ((H ′ + L) / (H ′ + z)) 1/2 It becomes.
- the energy loss can be minimized by setting the cross-sectional shape of the inner hole wall surface to a shape that satisfies the condition.
- the amount of hot water in the tundish is kept almost constant during operation, and the height of the head is constant.
- molten steel does not flow directly from the surface of the tundish into the upper nozzle, but flows from a position close to the bottom of the tundish.
- the molten steel flows from a position close to the bottom surface as in the tundish.
- the diameter of the lower end portion (inner hole small diameter portion) of the upper nozzle inner hole is determined by the throughput.
- the inventor of the present application conducted sincerity studies, and the inner diameter of the upper end (large inner diameter portion) is 1.5 times or more the inner diameter of the lower end (small inner diameter portion). It was found that sudden pressure changes can be suppressed. It is difficult to ensure a sufficient distance to smooth the shape from the tundish or ladle to the upper nozzle when the inner diameter of the upper end is less than 1.5 times the inner diameter of the lower end. This is because the shape changes rapidly.
- the inner diameter of the upper end is desirably 2.5 times or less than the inner diameter of the lower end. This is because the wider the inner diameter of the upper end, the wider the tundish and ladle tuyere, which is not realistic.
- log (r (z)) (1/4) ⁇ log ((H ′ + L) / (H ′ + z)) + log (r (L))
- log (r (z)) (1 / n) ⁇ log ((H + L) / (H + z)) + log (r (L))
- the length is 230 mm
- the inner hole large diameter part is 140 mm
- the inner hole small diameter part is 70 mm in diameter
- log (r (z)) (1 / 1.5) ⁇ log ((H + L) / (H + z)) + log (r (L)) 2 (a) was used to calculate the distribution of pressure applied to the wall surface of the inner hole when the height of the head of the tundish or ladle was 1000 mm. The calculation result is shown in FIG.
- log (r (z)) (1/2) ⁇ log ((H + L) / (H + z)) + log (r (L))
- the diameter of the inner hole is rapidly decreasing in the vicinity of the upper end of the inner hole, the diameter is narrow, and the flow of the molten steel is rapidly changed at a place where problems are likely to occur due to deposits. I understand that.
- the pressure change in the upper nozzle is small, for example, FIG. 9 (b), it was confirmed that a rapid pressure change occurred after the molten steel flowed from the upper nozzle to the upper plate.
- the change in pressure applied to the wall surface of the inner hole is substantially constant, so that the flow of the molten steel is a constant flow with little energy loss.
- the hot water level gradually decreases from about 4000 mm, and in the tundish, the hot water level is about 500 mm.
- the molten steel that flows into the tuyere is a molten steel located near the bottom of the tundish or ladle.
- the pressure value changes.
- the pressure distribution is the same as in the above examples and comparative examples.
- Example 6 In this example, the length is 230 mm, the diameter of the small inner diameter portion is 70 mm, and the diameter of the large inner diameter portion is 1.5 mm (1.5 D) that is 1.5 times the diameter D of the lower end of the inner diameter (small inner diameter portion).
- the pressure distribution applied to the wall surface of the inner hole was calculated in the same manner as in Example 1 using the upper nozzle shown in FIG. The calculation result is shown in FIG.
- Comparative Example 4 In this comparative example, the length is 230 mm, the diameter of the inner hole small diameter portion is 70 mm, the diameter of the inner hole large diameter portion is 73 mm, which is about one time (1.06D) of the diameter D of the lower end of the inner diameter (inner hole small diameter portion),
- the pressure distribution applied to the inner wall of the inner hole was calculated in the same manner as in Example 1 by using the upper nozzle shown in FIG. The calculation result is shown in FIG.
- Example 4 in which the ratio of the inner hole diameter is about 1 (1.06D), the pressure change near the upper end of the inner hole is severe, but the ratio of the inner hole diameter is 1.5 times (1.5D).
- Example 6 and Example 3 which is double (2D), it was confirmed that the pressure change was almost constant even in the vicinity of the upper end of the inner hole.
- the shape of the wall surface of the inner hole is represented by the above log (r (z))
- the wall surface from the tundish or ladle to the upper nozzle becomes gentle as the diameter of the inner hole widens. It can be seen that a rapid pressure change in the vicinity of the upper end portion of the inner hole can be suppressed by setting the diameter to 1.5 times or more the diameter of the lower end of the inner hole.
- the shape in the vicinity of the upper end portion of the inner hole may be determined by factors such as a stopper, and the inner portion in the vicinity of the upper end portion of the inner hole has a large inner diameter and is less affected by the attached matter.
- a bubbling structure for blowing Ar gas or the like may be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
log(r(z))=(1/1.5)×log((H+L)/(H+z))+log(r(L))と
log(r(z))=(1/6)×log((H+L)/(H+z))+log(r(L))
で表わされる曲線の間のr(z)のz微分が連続する曲線であり、前記計算上のヘッド高さHは、
H=((r(L)/r(0))n×L)/(1-(r(L)/r(0))n) (n=1.5~6)
であり、前記内孔の上端の内径r(0)が下端の内径r(L)の1.5倍以上であることを特徴とする。
log(r(z))=(1/n)×log((H+L)/(H+z))+log(r(L)) (n=1.5~6)
で表わされる曲線となるようにすることもできる。この場合も、内孔壁面の断面形状の少なくとも80%の形状が、上記曲線となるようにすることができる。
log(r(z))=(1/1.5)×log((H+L)/(H+z))+log(r(L)) …15
と
log(r(z))=(1/6)×log((H+L)/(H+z))+log(r(L)) …16
の間の滑らかな面、さらに望ましくは、
log(r(z))=(1/n)×log((H+L)/(H+z))+log(r(L)) (n:1.5~6)
で表わされる曲線形状である。ここで滑らかな面とは、r(z)に対する微分が連続する曲線、すなわち、曲面と当該曲面の接線とからなる面である。
v(z)=k(2g(H´+z))1/2
で表わされる。
Q=v(L)×A(L)=k(2g(H´+L))1/2×A(L)
で表わされる。
A(z)=Q/v(z)=k(2g(H´+L))1/2×A(L)/k(2g(H´+z))1/2
で表わされ、両辺をA(L)で割ると、
A(z)/A(L)=((H´+L)/(H´+z))1/2
となる。
A(z)/A(L)=πr(z)2/πr(L)2= ((H´+L)/(H´+z))1/2
r(z)/r(L)=((H´+L)/(H´+z))1/4 …(1)
となる。
log(r(z))=(1/4)×log((H´+L)/(H´+z))+log(r(L))
で表わされ、内孔壁面の断面形状を当該条件を満たす形状とすることによって、エネルギー損失を最小とすることができる。
r(0)/r(L)=((H+L)/(H+0))1/4=1.5~2.5
で表わされることから、上端部と下端部の内径と、両内径の比が決まれば、計算上のヘッド高さHを求めることができる。すなわち計算上のヘッド高さをHは、
H=((r(L)/r(0))4×L)/(1-(r(L)/r(0))4)
で表わされる。
log(r(z))=(1/4)×log((H´+L)/(H´+z))+log(r(L))
において、溶鋼のヘッド高さH´に代えて計算上のヘッド高さHを用いると共に、
log(r(z))=(1/n)×log((H+L)/(H+z))+log(r(L))
として、nの値を変更した断面形状の壁面を備えた内孔形状の上ノズルであれば、n=4以外であっても、従来に比べてスムーズな溶鋼の流れが形成されるのではないかと考え、nの値が異なる壁面形状の内孔を備えた上ノズルについて、内孔壁面に発生する圧力を検証した。
また、この時、計算上のヘッド高さHにおいても同様に変数nを適用して、
H=((r(L)/r(0))n×L)/(1-(r(L)/r(0))n)
とした。
r(0)/r(L)=((H+L)/(H+0))1/n=1.5~2.5
で表わされることから、上端部と下端部の内径と、両内径の比が決まれば、nの値に応じた計算上のヘッド高さHを求めることができる。
log(r(z))=(1/1.5)×log((H+L)/(H+z))+log(r(L))
で表わされる図2(a)に示す上ノズルを用いて、タンディッシュや取鍋のヘッドの高さが1000mmの時に内孔壁面に加わる圧力の分布を計算した。計算結果を、従来のノズルである図11記載の上ノズルの内孔上端の内壁に加わる圧力を0として、図2(b)に示す。また、n=2(実施例2)、n=4(実施例3)、n=5(実施例4)、n=6(実施例5)、n=7(比較例1)、n=8(比較例2) n=1(比較例3)の時、すなわち、
log(r(z))=(1/2)×log((H+L)/(H+z))+log(r(L))
で表わされる図3(a)の上ノズル(実施例2)、
log(r(z))=(1/4)×log((H+L)/(H+z))+log(r(L))
で表わされる図4(a)の上ノズル(実施例3)、
log(r(z))=(1/5)×log((H+L)/(H+z))+log(r(L))
で表わされる図5(a)の上ノズル(実施例4)、
log(r(z))=(1/6)×log((H+L)/(H+z))+log(r(L))
で表わされる図6(a)の上ノズル(実施例5)、
log(r(z))=(1/7)×log((H+L)/(H+z))+log(r(L))
で表わされる図7(a)の上ノズル(比較例1)、
log(r(z))=(1/8)×log((H+L)/(H+z))+log(r(L))
で表わされる図8(a)の上ノズル(比較例2)、
log(r(z))=(1/1)×log((H+L)/(H+z))+log(r(L))
で表わされる図9(a)の上ノズル(比較例3)を用いて実施例1と同様に内孔壁面に加わる圧力分布を計算した。計算結果を各図の(b)に示す。
本実施例では、長さ230mm、内孔小径部の直径が70mm、内孔大径部の直径が内径下端(内孔小径部)の径Dの1.5倍(1.5D)である108mm、内孔壁面の形状がn=4のとき、つまり、
log(r(z))=(1/4)×log((H+L)/(H+z))+log(r(L))
で表わされる、図10(a)の上ノズルを用いて実施例1と同様に内孔壁面に加わる圧力分布を計算した。計算結果を図10(b)に示す。
本比較例では、長さ230mm、内孔小径部の直径が70mm、内孔大径部の直径が内径下端(内孔小径部)の径Dの約1倍(1.06D)である73mm、内孔壁面の形状がn=4のとき、つまり、
log(r(z))=(1/4)×log((H+L)/(H+z))+log(r(L))
で表わされる、図11(a)の上ノズルを用いて実施例1と同様に内孔内壁に加わる圧力分布を計算した。計算結果を図11(b)に示す。
log(r(z))=(1/1.5)×log((H+L)/(H+z))+log(r(L))と、
log(r(z))=(1/6)×log((H+L)/(H+z))+log(r(L))の間の形状であって、
内孔壁面に角が形成されていない滑らかな断面形状、すなわちr(z)のzに対する微分(d(d(z))/dz)が連続する断面形状とすることで、溶鋼の流れを一定とし、付着物の発生を抑えることができることが分かる。
log(r(z))=(1/n)×log((H+L)/(H+z))+log(r(L)) (n=1.5~6)
で示される断面形状であればよく、また、Arガスなどを吹き込むバブリング構造を備えてもよい。
Claims (4)
- タンディッシュや取鍋の羽口に嵌合される上ノズルであって、
ノズル長さをL、計算上のヘッド高さをH、上端部からの距離zにおける半径をr(z)とした時、溶鋼が通過する内孔の軸に沿って切断した内孔壁面の断面形状が、
log(r(z))=(1/1.5)×log((H+L)/(H+z))+log(r(L))と、
log(r(z))=(1/6)×log((H+L)/(H+z))+log(r(L))
で表わされる曲線の間のr(z)のz微分が連続する曲線であり、
前記計算上のヘッド高さHは、
H=((r(L)/r(0))n×L)/(1-(r(L)/r(0))n) (n=1.5~6)
であり、
前記内孔の上端の内径r(0)が下端の内径r(L)の1.5倍以上である
ことを特徴とする上ノズル。 - タンディッシュや取鍋の羽口に嵌合される上ノズルであって、
ノズル長さをL、計算上のヘッド高さをH、上端部からの距離zにおける半径をr(z)とした時、溶鋼が通過する内孔の軸に沿って切断した内孔壁面の断面形状の少なくとも80%の形状が、
log(r(z))=(1/1.5)×log((H+L)/(H+z))+log(r(L))と、
log(r(z))=(1/6)×log((H+L)/(H+z))+log(r(L))
で表わされる曲線の間のr(z)のz微分が連続する曲線であり、
前記計算上のヘッド高さHは、
H=((r(L)/r(0))n×L)/(1-(r(L)/r(0))n) (n=1.5~6)
であり、
前記内孔の上端の内径r(0)が下端の内径r(L)の1.5倍以上である
ことを特徴とする上ノズル。 - タンディッシュや取鍋の羽口に嵌合される上ノズルであって、
ノズル長さをL、計算上のヘッド高さをH、上端部からの距離zにおける半径をr(z)とした時、溶鋼が通過する内孔の軸に沿って切断した内孔壁面の断面形状が、
log(r(z))=(1/n)×log((H+L)/(H+z))+log(r(L)) (n=1.5~6)
で表わされる曲線であり、
前記計算上のヘッド高さをHは、
H=((r(L)/r(0))n×L)/(1-(r(L)/r(0))n) (n=1.5~6)
であり、
前記内孔の上端の内径r(0)が下端の内径r(L)の1.5倍以上である
ことを特徴とする上ノズル。 - タンディッシュや取鍋の羽口に嵌合される上ノズルであって、
ノズル長さをL、計算上のヘッド高さをH、上端部からの距離zにおける半径をr(z)とした時、溶鋼が通過する内孔の軸に沿って切断した内孔壁面の断面形状の少なくとも80%の形状が、
log(r(z))=(1/n)×log((H+L)/(H+z))+log(r(L)) (n=1.5~6)
で表わされる曲線であり、
前記計算上のヘッド高さHは、
H=((r(L)/r(0))n×L)/(1-(r(L)/r(0))n) (n=1.5~6)
であり、
前記内孔の上端の内径r(0)が下端の内径r(L)の1.5倍以上である
ことを特徴とする上ノズル。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009000614.0T DE112009000614B4 (de) | 2008-03-14 | 2009-03-13 | Obere Düse |
AU2009224303A AU2009224303C1 (en) | 2008-03-14 | 2009-03-13 | Upper nozzle |
CN2009801067909A CN101959630B (zh) | 2008-03-14 | 2009-03-13 | 上浇注嘴 |
KR1020107020091A KR101228380B1 (ko) | 2008-03-14 | 2009-03-13 | 상부 노즐 |
BRPI0908161A BRPI0908161B1 (pt) | 2008-03-14 | 2009-03-13 | bocal superior adaptado para ser disposto dentro de uma abertura de descarga de um distribuidor ou de uma panela |
JP2010502896A JP5149373B2 (ja) | 2008-03-14 | 2009-03-13 | 上ノズル |
US12/675,298 US8240524B2 (en) | 2008-03-14 | 2009-03-13 | Upper nozzle |
GB1017209.6A GB2470877B (en) | 2008-03-14 | 2009-03-13 | Upper nozzle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-065154 | 2008-03-14 | ||
JP2008065154 | 2008-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009113662A1 true WO2009113662A1 (ja) | 2009-09-17 |
Family
ID=41065323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/054877 WO2009113662A1 (ja) | 2008-03-14 | 2009-03-13 | 上ノズル |
Country Status (9)
Country | Link |
---|---|
US (1) | US8240524B2 (ja) |
JP (1) | JP5149373B2 (ja) |
KR (1) | KR101228380B1 (ja) |
CN (1) | CN101959630B (ja) |
AU (1) | AU2009224303C1 (ja) |
BR (1) | BRPI0908161B1 (ja) |
DE (1) | DE112009000614B4 (ja) |
GB (1) | GB2470877B (ja) |
WO (1) | WO2009113662A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102481632A (zh) * | 2010-03-31 | 2012-05-30 | 黑崎播磨株式会社 | 浸渍浇注嘴 |
JP5156141B1 (ja) * | 2012-07-13 | 2013-03-06 | 黒崎播磨株式会社 | 上ノズルの使用方法 |
JP2016017206A (ja) * | 2014-07-08 | 2016-02-01 | 黒崎播磨株式会社 | 出鋼口スリーブ |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4695701B2 (ja) * | 2009-07-24 | 2011-06-08 | 黒崎播磨株式会社 | 溶融金属排出用ノズル |
CN103406507B (zh) * | 2013-08-22 | 2015-12-23 | 青岛云路新能源科技有限公司 | 一种非晶合金制带设备用组合喷嘴 |
CN103447520B (zh) * | 2013-08-28 | 2015-10-07 | 青岛云路新能源科技有限公司 | 一种生产非晶薄带的复合式喷嘴 |
CN103433444A (zh) * | 2013-08-28 | 2013-12-11 | 青岛云路新能源科技有限公司 | 一种生产非晶薄带的弧形喷嘴 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000141001A (ja) * | 1998-11-11 | 2000-05-23 | Shinagawa Refract Co Ltd | 溶融シリカ質連続鋳造用浸漬ノズルの製造方法 |
JP3639513B2 (ja) * | 2000-08-28 | 2005-04-20 | 黒崎播磨株式会社 | オープンノズル |
JP2005279729A (ja) * | 2004-03-30 | 2005-10-13 | Akechi Ceramics Co Ltd | タンディッシュ上ノズル |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT387039B (de) * | 1981-02-05 | 1988-11-25 | Veitscher Magnesitwerke Ag | Abstichvorrichtung fuer konverter |
US4510191A (en) * | 1982-09-30 | 1985-04-09 | Toshiba Ceramics Co., Ltd. | Casting nozzle |
DE4208520C2 (de) * | 1992-03-17 | 1994-10-27 | Didier Werke Ag | Abstichrohr an einem Konverter oder Lichtbogenofen |
US5310165A (en) | 1992-11-02 | 1994-05-10 | General Electric Company | Atomization of electroslag refined metal |
JP2000141991A (ja) * | 1998-09-04 | 2000-05-23 | Tasuku:Kk | ガラス等被転写体へのカラ―印刷方法 |
GB9906116D0 (en) * | 1999-03-17 | 1999-05-12 | Didier Werke Ag | Refractory product |
TW200420371A (en) * | 2002-10-16 | 2004-10-16 | Vesuvius Crucible Co | Resin-bonded, gas purged nozzle |
DE102004027440B3 (de) | 2004-06-04 | 2005-06-16 | Refractory Intellectual Property Gmbh & Co. Kg | Abstichrohr |
JP4818675B2 (ja) | 2005-09-30 | 2011-11-16 | Jfeスチール株式会社 | 連続鋳造設備の上ノズル |
CN201020532Y (zh) * | 2007-03-23 | 2008-02-13 | 济南麦哈勃冶金技术开发有限公司 | 加长式上水口 |
-
2009
- 2009-03-13 KR KR1020107020091A patent/KR101228380B1/ko active IP Right Grant
- 2009-03-13 AU AU2009224303A patent/AU2009224303C1/en active Active
- 2009-03-13 DE DE112009000614.0T patent/DE112009000614B4/de not_active Expired - Fee Related
- 2009-03-13 US US12/675,298 patent/US8240524B2/en active Active
- 2009-03-13 WO PCT/JP2009/054877 patent/WO2009113662A1/ja active Application Filing
- 2009-03-13 CN CN2009801067909A patent/CN101959630B/zh active Active
- 2009-03-13 GB GB1017209.6A patent/GB2470877B/en not_active Expired - Fee Related
- 2009-03-13 JP JP2010502896A patent/JP5149373B2/ja active Active
- 2009-03-13 BR BRPI0908161A patent/BRPI0908161B1/pt active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000141001A (ja) * | 1998-11-11 | 2000-05-23 | Shinagawa Refract Co Ltd | 溶融シリカ質連続鋳造用浸漬ノズルの製造方法 |
JP3639513B2 (ja) * | 2000-08-28 | 2005-04-20 | 黒崎播磨株式会社 | オープンノズル |
JP2005279729A (ja) * | 2004-03-30 | 2005-10-13 | Akechi Ceramics Co Ltd | タンディッシュ上ノズル |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102481632A (zh) * | 2010-03-31 | 2012-05-30 | 黑崎播磨株式会社 | 浸渍浇注嘴 |
JP5156141B1 (ja) * | 2012-07-13 | 2013-03-06 | 黒崎播磨株式会社 | 上ノズルの使用方法 |
WO2014010136A1 (ja) * | 2012-07-13 | 2014-01-16 | 黒崎播磨株式会社 | 上ノズルの使用方法 |
US9718128B2 (en) | 2012-07-13 | 2017-08-01 | Krosakiharima Corporation | Method for using upper nozzle |
JP2016017206A (ja) * | 2014-07-08 | 2016-02-01 | 黒崎播磨株式会社 | 出鋼口スリーブ |
Also Published As
Publication number | Publication date |
---|---|
GB2470877B (en) | 2012-08-01 |
DE112009000614T5 (de) | 2011-02-10 |
AU2009224303A1 (en) | 2009-09-17 |
BRPI0908161A2 (pt) | 2015-11-03 |
GB201017209D0 (en) | 2010-11-24 |
AU2009224303C1 (en) | 2011-03-10 |
JPWO2009113662A1 (ja) | 2011-07-21 |
CN101959630A (zh) | 2011-01-26 |
AU2009224303B2 (en) | 2010-08-26 |
GB2470877A (en) | 2010-12-08 |
US8240524B2 (en) | 2012-08-14 |
DE112009000614B4 (de) | 2021-11-11 |
JP5149373B2 (ja) | 2013-02-20 |
KR101228380B1 (ko) | 2013-01-31 |
BRPI0908161B1 (pt) | 2020-01-14 |
CN101959630B (zh) | 2013-03-27 |
US20100219212A1 (en) | 2010-09-02 |
KR20100125305A (ko) | 2010-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5149373B2 (ja) | 上ノズル | |
JP6354341B2 (ja) | 溶融金属への旋回流付与方法 | |
JP4695701B2 (ja) | 溶融金属排出用ノズル | |
US4417723A (en) | Tuyere for blowing gases into molten metal bath container | |
JPWO2007049824A1 (ja) | 極低炭素鋳片の製造方法 | |
JP2006150434A (ja) | 連続鋳造方法 | |
WO2011033829A1 (ja) | 溶融金属排出用ノズル | |
WO1996021047A1 (fr) | Technique d'affinage par soufflage par le haut au moyen d'un convertisseur, presentant d'excellentes caracteristiques de decarburation, et lance a soufflage par le haut pour convertisseur | |
EP0059289B1 (en) | Tuyère | |
JP2001129645A (ja) | 連続鋳造用浸漬ノズルおよび連続鋳造方法 | |
JP5027625B2 (ja) | 連続鋳造用浸漬ノズル | |
JP6217778B2 (ja) | 浸漬ノズル | |
JP2005305489A (ja) | 鋼の連続鋳造方法 | |
US20150196954A1 (en) | Method for using upper nozzle | |
JP3861861B2 (ja) | 連続鋳造用浸漬ノズル及び連続鋳造方法 | |
WO2020153195A1 (ja) | 浸漬ノズル | |
JP2000297315A (ja) | ステンレス溶鋼の脱炭精錬方法 | |
JP2009052090A (ja) | 溶鉄精錬用ランスおよび溶鉄精錬方法 | |
JP2023178223A (ja) | 鋼の連続鋳造方法 | |
KR20190016344A (ko) | 노즐 | |
JP2003073727A (ja) | 減圧精錬用ランス | |
JP2012241276A (ja) | 溶融金属減圧精錬用ノズルおよび精錬方法 | |
JP2017104889A (ja) | 浸漬ノズル |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980106790.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09721000 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009224303 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12675298 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2009224303 Country of ref document: AU Date of ref document: 20090313 Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010502896 Country of ref document: JP |
|
ENP | Entry into the national phase |
Ref document number: 20107020091 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1120090006140 Country of ref document: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3810/KOLNP/2010 Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: 1017209 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20090313 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1017209.6 Country of ref document: GB |
|
RET | De translation (de og part 6b) |
Ref document number: 112009000614 Country of ref document: DE Date of ref document: 20110210 Kind code of ref document: P |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09721000 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: PI0908161 Country of ref document: BR Kind code of ref document: A2 Effective date: 20100830 |