JPH03243258A - Nozzle for continuous casting - Google Patents
Nozzle for continuous castingInfo
- Publication number
- JPH03243258A JPH03243258A JP2037198A JP3719890A JPH03243258A JP H03243258 A JPH03243258 A JP H03243258A JP 2037198 A JP2037198 A JP 2037198A JP 3719890 A JP3719890 A JP 3719890A JP H03243258 A JPH03243258 A JP H03243258A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- continuous casting
- weight
- refractory
- molten steel
- 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.)
- Granted
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 239000011819 refractory material Substances 0.000 claims abstract description 16
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract 6
- 238000007654 immersion Methods 0.000 claims description 16
- 238000005266 casting Methods 0.000 claims description 4
- 230000005499 meniscus Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052681 coesite Inorganic materials 0.000 abstract description 6
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 6
- 239000000377 silicon dioxide Substances 0.000 abstract description 6
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 6
- 229910052682 stishovite Inorganic materials 0.000 abstract description 6
- 229910052905 tridymite Inorganic materials 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 description 7
- 239000010439 graphite Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910000655 Killed steel Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000473391 Archosargus rhomboidalis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、タンディツシュ内ＷＩａｉ＋をノズルを介
して鋳型に連続注入するさいに、ノズル内壁への介在物
の付着・成長を抑制し、連続鋳造の操業をスムーズにか
つ低コストで行うことを可能にした連続鋳造用ノズルに
関するものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention suppresses the adhesion and growth of inclusions on the inner wall of the nozzle when continuously injecting WIai+ in the tundish into the mold through the nozzle, thereby improving continuous casting. This invention relates to a continuous casting nozzle that enables smooth and low-cost operation.
一般に鯛の連続鋳造ではタンディツシュ内溶鋼をノズル
を介して鋳型に連続注入するが、そのノズルとしては鋳
型内温鋼中に先端を浸漬させる浸漬ノズルが使用され、
この浸漬ノズルの上部にはタンディツシュとの接続を行
うための中間ノズルやスライデングノズルが配置される
。中間ノズルはスライデングノズルの下方に配置される
下部ノズルと、上方に配ｌされる上部ノズルからなるの
が通常である。この中間ノズル（特に下部ノズル）と浸
漬ノズルの材質としては、従来からアル稟ナー黒鉛質あ
るいはジルコニア−黒鉛質の材料が用いられている。そ
して、これら耐火物材料には２０％程度のＳｉＯ□を含
有させて耐熱衝撃性および耐摩耗性の向上を図っている
。Generally, in continuous casting of sea bream, the molten steel in the tundish is continuously injected into the mold through a nozzle, and the nozzle used is an immersion nozzle whose tip is immersed in the heated steel in the mold.
An intermediate nozzle and a sliding nozzle for connection with the tundish are arranged above the immersion nozzle. The intermediate nozzle usually consists of a lower nozzle arranged below the sliding nozzle and an upper nozzle arranged above. Conventionally, the intermediate nozzle (particularly the lower nozzle) and the immersion nozzle are made of alumina-graphite or zirconia-graphite. These refractory materials contain approximately 20% SiO□ to improve thermal shock resistance and abrasion resistance.
これらの材料は耐食性、耐スポーリング性には優れてい
るが、溶鋼との接触・反応により耐火物表層の黒鉛部分
が消失し９表面の凹凸が大きくなることや、耐熱衝撃性
および耐摩耗性向上を目的として２０％程度含まれてい
る５ｉ０２が、付着物となるＡ１１ａｓを生成する酸素
源となり、さらにはそのＳｉＯ□が反応・消失した部分
の表面粗度が大きくなるために介在物付着起因のノズル
閉塞を発生させ易く９円滑な連続鋳造の操業を妨げると
いう問題があった。Although these materials have excellent corrosion resistance and spalling resistance, the graphite part of the refractory surface layer disappears due to contact and reaction with molten steel, making the surface rougher. 5i02, which is included at about 20% for the purpose of improvement, becomes an oxygen source that generates A11as, which becomes a deposit, and furthermore, the surface roughness of the part where the SiO□ reacts and disappears increases, causing inclusions to adhere. There is a problem in that the nozzle is easily clogged, which hinders smooth continuous casting operations.
このような問題を解決するために、ノズル内孔面に不活
性ガスを吹き込み、介在物の付着を防止する方法が一般
に採用されているが、この方法を用いても連続鋳造を行
っていくうちに介在物の付着成長が進行し、安定した閉
塞防止効果が得られず、また吹き込むガス量を多くする
と介在物付着防止効果は向上するが、吹き込んだガスが
鋳造された鋳片に捕捉され２表面欠陥の原因となること
も知られている。In order to solve these problems, a method is generally adopted in which inert gas is blown into the nozzle inner surface to prevent inclusions from adhering, but even with this method, during continuous casting, The adhesion and growth of inclusions progresses, making it impossible to obtain a stable blockage prevention effect.Also, increasing the amount of gas blown improves the effect of preventing inclusions from adhering, but the blown gas is captured by the cast slab. It is also known to cause surface defects.
本発明は、このような問題の解決を意図し、従来のアル
ミナ−黒鉛質もしくはジルコニア−黒鉛質の特性を生か
しながら、ノズル内孔壁に介在物の付着が起こり難い連
続鋳造用ノズルを得ることを目的としたものである。The present invention is intended to solve these problems, and aims to obtain a continuous casting nozzle that is less likely to cause inclusions to adhere to the nozzle inner hole wall while taking advantage of the characteristics of conventional alumina-graphite or zirconia-graphite. The purpose is to
上記目的を達成するために１本発明では次のような手段
を採用した。In order to achieve the above object, the present invention employs the following means.
すなわち、タンディツシュ内溶鋼を鋳型内に連続注入す
るための浸漬ノズルおよびこの浸漬ノズルの上部に接続
される中間ノズルの一方または両方の内面を。That is, the inner surface of one or both of the immersed nozzle for continuously injecting molten steel into the mold in the tundish and the intermediate nozzle connected to the upper part of this immersed nozzle.
（ａ）、５重量％を超える５ｉＯｚを含まず、Ａｎ！、
０．が９０重量％以上のカーボンレス高アルミナ質耐火
物。(a), does not contain more than 5% by weight of 5iOz, An! ,
0. A carbon-free high alumina refractory with over 90% by weight.
（ｂ）、５重量％を超えるＳｔＯ□を含まず、 ＭｇＯ
が９０重置％以上のカーボンレス高マグネシア賞耐火物
。(b), does not contain more than 5% by weight of StO□, MgO
Carbonless high magnesia award refractory with over 90% overlay.
（Ｃ）、５重量％を超える５ｉＯ１を含まず、 Ｚｒ０
１が９０重量％以上のカーボンレス高アルミナ質耐火物
のいずれか一種または二種以上を組み合わせた耐火物材
料で構成した。(C), does not contain more than 5% by weight of 5iO1, Zr0
The refractory material is a combination of one or more carbonless high alumina refractories containing 90% by weight or more of carbonless high alumina refractories.
そのさい、浸漬ノズルおよび中間ノズルの本体の材質は
従来と同様とし、前記の耐火物材料で作った円筒状のス
リーブを該浸漬ノズルおよび／または中間ノズルの内孔
に挿入するのが実際的である。またこのスリーブを、鋳
造中の鋳型内溶鋼のメニスカスレベルよりも上方位ｌの
ノズル内孔に挿入するのがよい。In this case, it is practical to use the same material as the main body of the immersion nozzle and the intermediate nozzle, and to insert a cylindrical sleeve made of the above-mentioned refractory material into the inner hole of the immersion nozzle and/or the intermediate nozzle. be. Further, this sleeve is preferably inserted into the nozzle inner hole above the meniscus level of the molten steel in the mold during casting.
溶鋼流と直接接触するノズル内孔の表面部分を構成する
前記の（ａ）、 （ｂ）、 （Ｃ）の耐火物材料は黒鉛
を含まず且つ不可避的最小限度以上のＳｉＯ□を含まな
い、そして、溶鋼との反応性が小さく材質的にも安定し
ている。 Ｓｉｎ、は溶鋼中への酸素供給源としての作
用を供するが２本発明のノズルはＳｉＯ２が極めて少な
いかまたは存在しないからノズル内壁に介在物が生成・
付着する原因となる溶鋼への酸素供給を断つことができ
る。そして黒鉛が存在しないから、これの消失による表
面の凹凸発生といったこともない。したがって、介在物
の付着・成長を抑制できる。なお材料中に含まれるＳｔ
ｏｗが５重量％を超えると溶鋼中への酸素供給源として
の働きが活発になるので０〜５重量％の範囲とすること
が好ましい０本発明に従う耐火物材料は製造上止むを得
ず混入する不可避的不純物は許容されるものであるが、
八２□０．．ＭｇＯまたはＺｒ０ｚがいずれも９０重量
％以上、好ましくは９２％以上、さらに好ましくは９５
％以上の高純度のものが望ましい。The refractory materials of (a), (b), and (C) above that constitute the surface portion of the nozzle inner hole that comes into direct contact with the molten steel flow do not contain graphite and do not contain more than the unavoidable minimum amount of SiO□. In addition, it has low reactivity with molten steel and is stable in terms of material quality. SiO2 serves as an oxygen supply source to molten steel, but since the nozzle of the present invention has very little or no SiO2, inclusions are formed on the inner wall of the nozzle.
It is possible to cut off the oxygen supply to the molten steel, which causes adhesion. Furthermore, since there is no graphite, there is no occurrence of surface irregularities due to the disappearance of graphite. Therefore, attachment and growth of inclusions can be suppressed. In addition, St contained in the material
When ow exceeds 5% by weight, it acts as an oxygen supply source to the molten steel, so it is preferably in the range of 0 to 5% by weight.The refractory material according to the present invention is unavoidably mixed due to manufacturing reasons. unavoidable impurities are permissible, but
82□0. ．． Both MgO and Zr0z are 90% by weight or more, preferably 92% or more, more preferably 95% by weight or more.
% or higher purity is desirable.
第１図および第２図に本発明に従う連続鋳造用ノズルの
実施例を示した。図において、１は連鋳鋳型、２は鋳造
中の鋳型内溶鋼を示しており、この鋳型内溶鋼２の中に
浸漬ノズル３の先端を浸漬して端部の吐出口４から溶鋼
が連続注入される。1 and 2 show an embodiment of a continuous casting nozzle according to the present invention. In the figure, 1 indicates a continuous casting mold, and 2 indicates molten steel in the mold during casting.The tip of a submerged nozzle 3 is immersed in the molten steel 2 in the mold, and molten steel is continuously injected from the discharge port 4 at the end. be done.
この浸漬ノズル３は上方のタンディツシュ（図示しない
）に対して、スライデングノズル部５を介して接続され
る。スライデングノズル部５は水平方向に移動可能な上
部プレート６と下部プレート７とからなり、スライデン
グノズル部５の上方には上部ノズル８が、また下方には
下部ノズル９が接続され、この下部ノズル９に浸漬ノズ
ル３の上端が同軸的に接合されている。This immersion nozzle 3 is connected to an upper tundish (not shown) via a sliding nozzle section 5. The sliding nozzle part 5 consists of an upper plate 6 and a lower plate 7 that are movable in the horizontal direction. An upper nozzle 8 is connected to the upper part of the sliding nozzle part 5, and a lower nozzle 9 is connected to the lower part of the sliding nozzle part 5. The upper end of the immersion nozzle 3 is coaxially joined to the nozzle 9.
第１図ではこの浸漬ノズル３の内孔に９本発明に従うＳ
ｉＯ□が５重量％以下のカーボンレス耐火物の円筒状ス
リーブ１０を挿入した例を示した。このスリー７”ＩＯ
は、鋳型内溶鋼のメニスカスレヘルＭよりも上方位置の
ノズル内孔に挿入されておりＭより上方位置の内孔の全
長にわたってこのスリーブ１０でその内面が形成されて
いる。In FIG. 1, the inner hole of this immersion nozzle 3 has 9 S according to the present invention.
An example was shown in which a cylindrical sleeve 10 made of carbonless refractory material with iO□ of 5% by weight or less was inserted. This three 7”IO
is inserted into the inner hole of the nozzle above the meniscus level M of the molten steel in the mold, and the inner surface of the inner hole above M is formed by this sleeve 10 over the entire length of the inner hole.
また第２図には下部ノズル９に同様のスリーブ１１を挿
入した例を示しており、下部ノズル９の実質的長さ部分
の内面がこのスリーブ１１で形成されている。Further, FIG. 2 shows an example in which a similar sleeve 11 is inserted into the lower nozzle 9, and the inner surface of a substantial length portion of the lower nozzle 9 is formed by this sleeve 11.
内孔にスリーブ１０を挿入した第１図の浸漬ノズル３を
用いて連続鋳造を行った例をもって本発明の効果を以下
に示す。The effects of the present invention will be described below using an example in which continuous casting was carried out using the immersion nozzle 3 of FIG. 1 in which the sleeve 10 was inserted into the inner hole.
従来の既存の浸漬ノズル３の内孔に、第１表の■■■■
に示した組成の耐火物材料からなる円筒型スリーブ１０
を挿入し、低炭素Ａｔキルド鋼および極低炭素Ｔｉ添加
Ａｌキルド鋼を、それぞれ連続８チヤージ（１８５）ン
／チャージ）鋳造した。また。In the inner hole of the conventional existing immersion nozzle 3,
A cylindrical sleeve 10 made of a refractory material having the composition shown in
was inserted, and low carbon At-killed steel and ultra-low carbon Ti-added Al killed steel were each continuously cast for 8 charges (185 tons/charge). Also.
該スリーブを挿入しないで従来の浸漬ノズルのまま同様
の操業を行った。この場合の浸漬ノズルの内面は本体の
耐火物組成のままであり、その組成は第１表の■■に示
したものである。A similar operation was performed using a conventional immersion nozzle without inserting the sleeve. In this case, the inner surface of the immersion nozzle has the same refractory composition as the main body, and the composition is shown in column (■) in Table 1.
前記の操業の後、ノズル内孔に付着している付着物層の
厚みを測定した。その結果を、低炭素Ａｌキルド鋼につ
いては第３図に、また、極低炭素Ｔｉ添加Ａｌキルド鋼
については第４図に示した。After the above operation, the thickness of the deposit layer adhering to the nozzle inner hole was measured. The results are shown in FIG. 3 for the low-carbon Al-killed steel, and in FIG. 4 for the ultra-low-carbon, Ti-added Al-killed steel.
第３図および第４図から明らかなように、比較例として
挙げた既存のノズル（■■）では付着厚みが大きいかま
たは８チヤージ到達前に閉塞してしまうのに対し２本発
明に従うスリーブを使用したものでは付着厚みも小さく
、安定した操業が実施できた。またＳｉＪを６％含むス
リーブを使用−した比較例■については、途中閉塞こそ
ないものの。As is clear from FIGS. 3 and 4, the existing nozzle (■■) cited as a comparative example has a large adhesion thickness or is clogged before reaching 8 charges, whereas the sleeve according to the present invention The one used had a small adhesion thickness, and stable operation was possible. Furthermore, in Comparative Example (2) using a sleeve containing 6% SiJ, there was no blockage on the way.
付着厚みは本発明例の２倍以上になっている。以上から
１本発明においてＳｉＯ２を５％以下に規定することの
効果並びにカーボンレスとすることの効果が明らかであ
る。The adhesion thickness is more than twice that of the example of the present invention. From the above, it is clear that in the present invention, the effect of specifying SiO2 to 5% or less and the effect of making it carbonless are clear.
以上のように本発明によれば、鋼種のいかんを問わず安
定した連続鋳造操業が可能となり、さらに多連鋳化が可
能となるので製造原価の低減にも大きく寄与することが
できる。As described above, according to the present invention, stable continuous casting operation is possible regardless of the type of steel, and since multiple casting is possible, it can greatly contribute to reducing manufacturing costs.
第１図は本発明の連続鋳造用ノズルの実施例を示す略断
面図、第２図は同じく本発明の他の実施例を示す略断面
図、第３図は本発明に従う浸漬ノズルをＡｔキルド鋼の
連鋳に用いたときの内孔付着物の厚みを比較例のものと
比較して示した図。
第４図は本発明に従う浸漬ノズルをＴｉ添加Ａｌキルド
鋼の連鋳に用いたときの内孔付着物の厚みを比較例のも
のと比較して示した図である。
１・・連鋳鋳型、 ２・・鋳型内溶鋼。
３・・浸漬ノズル、 ４・・吐出口。
５・・スライディングノズル部。
８・・上部ノズル、 ９・・下部ノズル。
１０・・本発明に従う耐火物材料のスリーブ。
１１・・本発明に従う耐火物材料のスリーブ。
第１図
第３図FIG. 1 is a schematic sectional view showing an embodiment of a continuous casting nozzle according to the present invention, FIG. 2 is a schematic sectional view showing another embodiment of the present invention, and FIG. FIG. 3 is a diagram showing the thickness of inner hole deposits when used for continuous casting of steel in comparison with that of a comparative example. FIG. 4 is a diagram showing the thickness of inner hole deposits when the immersion nozzle according to the present invention is used for continuous casting of Ti-added Al-killed steel in comparison with that of a comparative example. 1. Continuous casting mold, 2. Molten steel in the mold. 3. Immersion nozzle, 4. Discharge port. 5. Sliding nozzle part. 8. Upper nozzle, 9. Lower nozzle. 10. Sleeve of refractory material according to the invention. 11. Sleeve of refractory material according to the invention. Figure 1 Figure 3
Claims (3)
めの浸漬ノズルおよびこの浸漬ノズルの上部に接続され
る中間ノズルの一方または両方の内面を， （ａ）．５重量％を超えるＳｉＯ＿２を含まず，Ａｌ＿
２Ｏ＿３が９０重量％以上のカーボンレス高アルミナ質
耐火物，（ｂ）．５重量％を超えるＳｉＯ＿２を含まず
，ＭｇＯが９０重量％以上のカーボンレス高マグネシア
質耐火物，（ｃ）．５重量％を超えるＳｉＯ＿２を含ま
ず，ＺｒＯ＿２が９０重量％以上のカーボンレス高ジル
コニア質耐火物のいずれか一種または二種以上を組み合
わせた耐火物材料で構成した連続鋳造用ノズル。(1) The inner surface of one or both of the immersion nozzle for continuously injecting molten steel into the tundish into the mold and the intermediate nozzle connected to the upper part of the immersion nozzle (a). Does not contain more than 5% by weight of SiO_2, Al_
Carbonless high alumina refractory containing 2O_3 at 90% by weight or more, (b). Carbonless high magnesia refractory that does not contain more than 5% by weight of SiO_2 and contains 90% by weight or more of MgO, (c). A continuous casting nozzle made of a refractory material that does not contain more than 5% by weight of SiO_2 and contains 90% by weight or more of ZrO_2, which is a combination of one or more carbonless high zirconia refractories.
このスリーブが該浸漬ノズルおよび／または中間ノズル
の内孔に挿入される請求項１に記載の連続鋳造用ノズル
。(2) the refractory material is configured into a cylindrical sleeve;
A nozzle for continuous casting according to claim 1, wherein the sleeve is inserted into the inner hole of the submerged nozzle and/or the intermediate nozzle.
レベルよりも上方位置のノズル内孔に挿入される請求項
２に記載の連続鋳造用ノズル。(3) The continuous casting nozzle according to claim 2, wherein the sleeve is inserted into the nozzle inner hole at a position above the meniscus level of the molten steel in the mold during casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03719890A JP3219095B2 (en) | 1990-02-20 | 1990-02-20 | Nozzle for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03719890A JP3219095B2 (en) | 1990-02-20 | 1990-02-20 | Nozzle for continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03243258A true JPH03243258A (en) | 1991-10-30 |
| JP3219095B2 JP3219095B2 (en) | 2001-10-15 |
Family
ID=12490878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03719890A Expired - Lifetime JP3219095B2 (en) | 1990-02-20 | 1990-02-20 | Nozzle for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3219095B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154628A (en) * | 1991-12-06 | 1993-06-22 | Kurosaki Refract Co Ltd | Nozzle inner hole for continuous casting |
| JPH05237610A (en) * | 1992-02-29 | 1993-09-17 | Kurosaki Refract Co Ltd | Internal hole body of continuous casting nozzle |
| US5370370A (en) * | 1993-02-19 | 1994-12-06 | Vesuvius Crucible Company | Liner for submerged entry nozzle |
| EP0818259A1 (en) * | 1996-07-11 | 1998-01-14 | Shinagawa Refractories Co., Ltd. | Nozzle for use in continuous casting of steel |
| EP0826447A1 (en) * | 1996-08-26 | 1998-03-04 | Shinagawa Refractories Co., Ltd. | Nozzle for continuous casting |
| EP0885674A1 (en) * | 1996-11-18 | 1998-12-23 | Shinagawa Refractories Co., Ltd. | Nozzle for the continuous casting of steel |
| EP1036614A1 (en) * | 1999-03-18 | 2000-09-20 | Shinagawa Refractories Co., Ltd. | Submerged entry nozzle for use in continuous casting |
| JP2010253546A (en) * | 2009-04-24 | 2010-11-11 | Shinagawa Refractories Co Ltd | Immersion nozzle for continuously casting steel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189654U (en) * | 1981-05-25 | 1982-12-01 | ||
| JPS59141354A (en) * | 1983-01-05 | 1984-08-14 | アルベ−ト・ザ−ルシユタ−ル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Immersion sink comprising several strand casting apparatusescomprising refractory material |
| JPS6289554A (en) * | 1985-10-14 | 1987-04-24 | Kawasaki Steel Corp | Immersion nozzle for continuous casting |
| JPS62104654A (en) * | 1985-10-12 | 1987-05-15 | Sumitomo Chem Co Ltd | Continuous casting nozzle |
-
1990
- 1990-02-20 JP JP03719890A patent/JP3219095B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57189654U (en) * | 1981-05-25 | 1982-12-01 | ||
| JPS59141354A (en) * | 1983-01-05 | 1984-08-14 | アルベ−ト・ザ−ルシユタ−ル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Immersion sink comprising several strand casting apparatusescomprising refractory material |
| JPS62104654A (en) * | 1985-10-12 | 1987-05-15 | Sumitomo Chem Co Ltd | Continuous casting nozzle |
| JPS6289554A (en) * | 1985-10-14 | 1987-04-24 | Kawasaki Steel Corp | Immersion nozzle for continuous casting |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154628A (en) * | 1991-12-06 | 1993-06-22 | Kurosaki Refract Co Ltd | Nozzle inner hole for continuous casting |
| JPH05237610A (en) * | 1992-02-29 | 1993-09-17 | Kurosaki Refract Co Ltd | Internal hole body of continuous casting nozzle |
| US5370370A (en) * | 1993-02-19 | 1994-12-06 | Vesuvius Crucible Company | Liner for submerged entry nozzle |
| US5868956A (en) * | 1996-07-11 | 1999-02-09 | Shinagawa Refractories Co., Ltd. | Nozzle for use in continuous casting of steel |
| EP0818259A1 (en) * | 1996-07-11 | 1998-01-14 | Shinagawa Refractories Co., Ltd. | Nozzle for use in continuous casting of steel |
| EP0826447A1 (en) * | 1996-08-26 | 1998-03-04 | Shinagawa Refractories Co., Ltd. | Nozzle for continuous casting |
| US5908577A (en) * | 1996-08-26 | 1999-06-01 | Shinagawa Refractories Co., Ltd. | Nozzle for continuous casting |
| EP0885674A4 (en) * | 1996-11-18 | 1998-12-30 | ||
| EP0885674A1 (en) * | 1996-11-18 | 1998-12-23 | Shinagawa Refractories Co., Ltd. | Nozzle for the continuous casting of steel |
| US5979720A (en) * | 1996-11-18 | 1999-11-09 | Shinagawa Refractories Co., Ltd. | Nozzle for the continuous casting of steel |
| EP1036614A1 (en) * | 1999-03-18 | 2000-09-20 | Shinagawa Refractories Co., Ltd. | Submerged entry nozzle for use in continuous casting |
| US6279790B1 (en) | 1999-03-18 | 2001-08-28 | Shinagawa Refractories Co., Ltd. | Submerged entry nozzle for use in continuous casting |
| JP2010253546A (en) * | 2009-04-24 | 2010-11-11 | Shinagawa Refractories Co Ltd | Immersion nozzle for continuously casting steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3219095B2 (en) | 2001-10-15 |
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