JP2684946B2 - Tundish slag outflow prevention method - Google Patents
Tundish slag outflow prevention methodInfo
- Publication number
- JP2684946B2 JP2684946B2 JP359693A JP359693A JP2684946B2 JP 2684946 B2 JP2684946 B2 JP 2684946B2 JP 359693 A JP359693 A JP 359693A JP 359693 A JP359693 A JP 359693A JP 2684946 B2 JP2684946 B2 JP 2684946B2
- Authority
- JP
- Japan
- Prior art keywords
- tundish
- diameter pipe
- molten steel
- slag
- outflow
- 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 - Fee Related
Links
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- Continuous Casting (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、連続鋳造用タンディ
ッシュの内部スラグがモールドへ流出してしまうことを
防止するスラグ流出防止方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slag outflow preventing method for preventing internal slag of a continuous casting tundish from flowing out to a mold.
【０００２】[0002]
【従来の技術】従来、この種のスラグ流出防止手段とし
ては、次の(1) 〜(3) に述べるものが一般に知られてい
る。2. Description of the Related Art Conventionally, the following (1) to (3) are generally known as this kind of slag outflow preventing means.
【０００３】(1) 周表面に多数の孔が形成されている筒
体と、この筒体の内部に配設された複数個の過流出阻止
部材とからなる堰部材を、スラグの流出防止用として、
タンディッシュにおける溶鋼流出口の上部に設置してな
るもの（特開昭63-16855号公報参照）。(1) For preventing the outflow of slag, a weir member composed of a tubular body having a large number of holes formed on its peripheral surface and a plurality of overflow preventing members disposed inside the tubular body is provided. As
It is installed above the molten steel outlet in a tundish (see Japanese Patent Laid-Open No. 63-16855).
【０００４】(2) 表面に多数の孔が形成されている堰部
材を、スラグ流出防止用として、略水平状態で、タンデ
ィッシュにおける溶鋼流出口の近傍位置に配設してなる
もの（特開昭63-43752号公報参照）。(2) A weir member having a large number of holes formed on its surface is provided near the molten steel outlet in the tundish in a substantially horizontal state for the purpose of preventing slag outflow. (See Japanese Patent Publication No. 63-43752).
【０００５】(3) タンディッシュ内に、上堰，トンネル
堰，下堰等からなる複数の堰を設け、この各堰によっ
て、タンディッシュの溶鋼流出口にスラグが侵入しない
ようにしてなるもの（実開昭62-151056 号公報参照）。(3) A plurality of weirs including an upper weir, a tunnel weir, and a lower weir are provided in the tundish, and each of these weirs prevents slag from entering the molten steel outlet of the tundish ( (See Japanese Utility Model Laid-Open No. 62-151056).
【０００６】[0006]
【この発明が解決しようとする課題】しかし、前述した
(1) および(2) のものでは、タンディッシュ耐火物やタ
ンディッシュスラグが流出防止用堰部材の孔に詰まり、
タンディッシュ内の溶鋼を充分排出できなくしてしまう
場合がある。また、溶鋼温度が低くなって流出口付近で
溶鋼が凝固し、流出口が閉塞した際に、凝固溶鋼と堰部
材とは一体的に凝固するので、Ｏ2 ガスを吹き込んで閉
塞物を溶解することができなくなる。[Problems to be solved by the present invention]
In the cases of (1) and (2), tundish refractory and tundish slag are blocked in the holes of the outflow prevention dam member,
The molten steel in the tundish may not be discharged sufficiently. Further, when the molten steel temperature becomes low and the molten steel solidifies near the outlet and the outlet is blocked, the solidified molten steel and the weir member are solidified integrally. Therefore, blow O2 gas to dissolve the blockage. Can not be.
【０００７】一方、(3) では、複数の独立した堰を用い
るために、コストが高くなってしまうばかりか、タンデ
ィッシュ内において多量の残鋼を残してしまうという問
題点がある。On the other hand, in (3), since a plurality of independent weirs are used, not only the cost becomes high, but also a large amount of residual steel is left in the tundish.
【０００８】さらに、前述した三件の従来技術は、何れ
も、介在物の流出防止，渦流発生防止，スラグ流出防止
に効果はあるとしても、介在物流出およびスラグ流出を
防止して残鋼量を減少させることが出来ない（歩留の
差）。Further, even though all of the above-mentioned three prior arts are effective in preventing inclusion outflow, vortex flow generation, and slag outflow prevention, inclusion outflow and slag outflow are prevented and the amount of residual steel remains. Cannot be reduced (difference in yield).
【０００９】この発明は前述した事情に鑑みて創案され
たもので、その目的は低コストで、鋳造末期のタンディ
ッシュスラグの流出を防止することができると共に、流
出口が閉塞するというトラブルにも対応することのでき
るタンディッシュのスラグ流出防止方法を提供すること
にある。The present invention was devised in view of the above-mentioned circumstances, and its purpose is to reduce the cost, to prevent the outflow of tundish slag at the final stage of casting, and to prevent the trouble that the outlet is blocked. An object of the present invention is to provide a tundish slag outflow prevention method that can deal with the problem.
【００１０】[0010]
【課題を解決するための手段】この発明のスラグ流出防
止方法によれば、タンディッシュスラグ流出防止用の中
空大径管部と、この中空大径管部の下部に連通して一体
的に形成されており、上端の中空大径管部との隙間がタ
ンディッシュ内部に連通している溶鋼流出用の中空小径
管部とからなる治具を、連続鋳造用タンディッシュにお
ける底部の溶鋼流出用ノズル上端に、このノズル内と連
通した状態で設置する。According to the slag outflow prevention method of the present invention, a hollow large-diameter pipe portion for preventing the outflow of tundish slag and a lower portion of the hollow large-diameter pipe portion are formed integrally with each other. A jig that consists of a hollow small diameter pipe for molten steel outflow that communicates with the hollow large diameter pipe at the upper end inside the tundish, and a nozzle for molten steel outflow at the bottom of a continuous casting tundish. It is installed at the upper end in communication with the inside of this nozzle.
【００１１】また、前記治具の高さの直上近傍に前記タ
ンディッシュ内の残鋼量が来た時期における、所謂、鋳
込み末期におけるタンディッシュ内残留溶鋼の排出を、
前記治具の大径管下端部と小径管上端部との隙間から治
具内に導いて行う。Further, when the amount of residual steel in the tundish reaches just above the height of the jig, the so-called discharge of residual molten steel in the tundish at the end of casting,
The jig is guided through the gap between the lower end of the large diameter pipe and the upper end of the small diameter pipe.
【００１２】そして、鋳込み末期において、溶鋼の上面
にスラグが浮遊していても、中空大径管部で流出を阻止
すると共に、残留している溶鋼を、治具の大径管下端部
と小径管上端部との隙間から、溶鋼流出用ノズルへ流し
て確実に排出できるようにしたものである。At the end of casting, even if the slag floats on the upper surface of the molten steel, the hollow large-diameter pipe portion prevents outflow, and the remaining molten steel is retained by the large-diameter lower end portion of the jig and the small-diameter pipe. From the gap between the upper end of the pipe and the molten steel outflow nozzle, the molten steel can be reliably discharged.
【００１３】[0013]
【実施例】以下、この発明のタンディッシュのスラグ流
出防止方法を、図示する実施例によって説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The method for preventing slag outflow of a tundish according to the present invention will be described below with reference to the illustrated embodiments.
【００１４】先ず、この発明のスラグ流出防止方法に使
用される治具を説明すると、連続鋳造用タンディッシュ
２における底部の溶鋼流出用ノズル３上端に、ノズル３
内と連通した状態で設置される治具１（図１参照）は、
タンディッシュスラグ４の大量流出を防止できるように
形成されている中空大径管部５と、この中空大径管部５
の下部に連通して一体的に形成されており、上端の中空
大径管部５との隙間６がタンディッシュ２内部に連通し
ている溶鋼流出用の中空小径管部７とからなっている。First, the jig used in the method for preventing slag outflow according to the present invention will be described. The nozzle 3 for flowing out molten steel at the bottom of the continuous casting tundish 2 is provided with the nozzle 3
The jig 1 (see Fig. 1) installed in communication with the inside is
A hollow large-diameter pipe portion 5 formed so as to prevent a large amount of tundish slag 4 from flowing out, and the hollow large-diameter pipe portion 5
Is formed integrally with the hollow large diameter pipe portion 5 at the upper end, and a gap 6 with the hollow large diameter pipe portion 5 at the upper end is connected to the inside of the tundish 2 and a hollow small diameter pipe portion 7 for molten steel outflow. .
【００１５】そして、この発明のスラグ流出防止方法で
は、治具１の高さの直上近傍に、タンディッシュ２内の
残鋼量が来た時期における、所謂、鋳込み末期における
タンディッシュ２内残留溶鋼の排出を、治具１の大径管
下端部と小径管上端部との隙間６から治具内に導いて行
う。According to the slag outflow prevention method of the present invention, the residual molten steel in the tundish 2 at the so-called final stage of casting when the amount of residual steel in the tundish 2 has reached immediately above the height of the jig 1. Is discharged into the jig from the gap 6 between the lower end of the large diameter pipe and the upper end of the small diameter pipe of the jig 1.
【００１６】なお、この図１は、本発明の実施例にかか
るタンディッシュ流出口近傍における鋳造末期の様子を
模式的に示した断面図である。FIG. 1 is a sectional view schematically showing the final stage of casting in the vicinity of the tundish outlet according to the embodiment of the present invention.
【００１７】次に、本発明の実施例にかかるタンディッ
シュスラグ流出防止用の治具１を備えたタンデッシュ２
について説明すると、タンディッシュ２からモールド内
８へ至る溶鋼流出口は、上ノズル９，三層式スライディ
ングゲート10，浸漬ノズル11からなっている。Next, the tundish 2 equipped with the jig 1 for preventing the outflow of the tundish slag according to the embodiment of the present invention.
The molten steel outlet from the tundish 2 to the inside 8 of the mold is composed of an upper nozzle 9, a three-layer sliding gate 10, and a dipping nozzle 11.
【００１８】そして、通常はタンディッシュ２内の残鋼
が、ある一定値に達したところで中間ゲート（三層式ス
ライディングゲート１０）を閉め、溶鋼の流出を中止す
ることで、タンディッシュスラグ４の流出を防止する。
この場合に、溶鋼流出口が溶鋼で充填された状態で中間
ゲートを閉とするため、中間ゲート内に溶鋼が残り凝固
（部分的凝固）することとなる。Usually, when the residual steel in the tundish 2 reaches a certain value, the intermediate gate (three-layer sliding gate 10) is closed and the outflow of molten steel is stopped, whereby the tundish slag 4 Prevent outflow.
In this case, since the intermediate gate is closed while the molten steel outlet is filled with the molten steel, the molten steel remains in the intermediate gate and solidifies (partially solidifies).
【００１９】そのため、一度中間ゲートを閉とした場
合、Ｏ2 ガスを吹付けない限り、溶鋼は流出しない。ま
た、異鋼種連々時は、中間ゲートを閉とした後、再び開
とするため、Ｏ2 ガス吹付けを必ず実施している。 こ
れに対して、本発明の実施例の場合には、溶鋼を完全に
排出（Ｔ／Ｄ内排出可能溶鋼）してから、中間ゲートを
閉とするため、中間ゲート内には残鋼が残らないため、
Ｏ2 ガスを吹付ける必要がない。また、タンディッシュ
スラグ流出防止用治具１の大径管部長さ，小径管部長さ
を調節することにより、効率よくタンディッシュ２の流
出を防止することができる。Therefore, once the intermediate gate is closed, the molten steel does not flow out unless O2 gas is blown. In addition, when different steel types are used one after another, the intermediate gate is closed and then opened again, so that O2 gas is always sprayed. On the other hand, in the case of the embodiment of the present invention, since the molten steel is completely discharged (molten steel that can be discharged in T / D), the intermediate gate is closed, so that residual steel remains in the intermediate gate. Because there is no
No need to blow O2 gas. Further, the tundish 2 can be efficiently prevented from flowing out by adjusting the lengths of the large diameter pipe portion and the small diameter pipe portion of the tundish slag outflow preventing jig 1.
【００２０】このような構成からなる冶具１を使用し
て、本発明のスラグ流出防止方法を実施すると、次に述
べるような状況となる。When the slag outflow prevention method of the present invention is carried out by using the jig 1 having the above-mentioned structure, the situation will be described below.
【００２１】即ち、この発明にかかるタンディッシュス
ラグ流出防止の治具１を配設したタンディッシュ２にお
いては、鋳造末期、タンディッシュスラグ４のレベルが
大径管部上端より低位になると、溶鋼は、図１に示すよ
うに、大径管部５と小径管部７との隙間６から小径管部
７内に侵入して流出する。そして、タンディッシュスラ
グ４のレベルがさらに低下し、大径管部５の下端付近ま
でくると、大径管部５と小径管部７との溶鋼圧力が低下
し、溶鋼の流出が停止し、タンディッシュスラグ４も流
出しない。That is, in the tundish 2 provided with the jig 1 for preventing the outflow of the tundish slag according to the present invention, when the level of the tundish slag 4 becomes lower than the upper end of the large diameter pipe portion at the end of casting, the molten steel is As shown in FIG. 1, the small-diameter pipe portion 7 enters the small-diameter pipe portion 7 through the gap 6 between the large-diameter pipe portion 5 and the small-diameter pipe portion 7 and flows out. Then, when the level of the tundish slag 4 further decreases and reaches near the lower end of the large diameter pipe portion 5, the molten steel pressure between the large diameter pipe portion 5 and the small diameter pipe portion 7 decreases, and the outflow of molten steel stops, The tundish slag 4 also does not flow out.
【００２２】なお、溶鋼のＴ／Ｄ底面単位面積当りの静
圧は、溶鋼高さに比例し、Ｔ／Ｄ内容積が小ほど高い。The static pressure per unit area of the T / D bottom surface of the molten steel is proportional to the height of the molten steel, and the smaller the T / D internal volume, the higher.
【００２３】また、図１の左側で、溶鋼の静圧を下向き
Ｐ0 とすると、右側の静圧も下向きＰ0 で平衡している
とすると、右側は、小径管部の存在により，Ｔ／Ｄ内容
積が拡大し、右側圧力はＰ0 からＰ1 に小さくなり（Ｐ
0 ＞Ｐ1 ）、圧力平衡しようとして（左側大径管部は少
々液位低下）、小径管近傍の液位が上昇し、大径管下部
と小径管上部との隙間から溶鋼が排出される（排出溶鋼
は、液位が上昇した小径管上部近傍の溶鋼）。On the left side of FIG. 1, if the static pressure of molten steel is P 0 downward, and the static pressure on the right side is also balanced downward P 0 , the right side is T / due to the presence of the small diameter pipe section. The internal volume of D expands and the pressure on the right side decreases from P 0 to P 1 (P
0 > P 1 ) Attempting pressure equilibration (the liquid level in the large diameter pipe on the left side slightly decreases), the liquid level near the small diameter pipe rises, and molten steel is discharged from the gap between the lower part of the large diameter pipe and the upper part of the small diameter pipe. (The discharged molten steel is the molten steel near the upper part of the small diameter pipe where the liquid level has risen).
【００２４】この現象は、残鋼量が治具上部近傍で開始
される（それより上では、大径管上部から溶鋼排出）。
大径と小径の径の差は無視される（溶鋼量）、即ち、溶
鋼量が多く、左右の静圧は、大径部で略平衡している。This phenomenon begins when the amount of residual steel is near the upper part of the jig (above it, molten steel is discharged from the upper part of the large diameter pipe).
The difference between the large diameter and the small diameter is neglected (amount of molten steel), that is, the amount of molten steel is large, and the static pressures on the left and right are approximately balanced in the large diameter portion.
【００２５】さらに、溶鋼の排出の中止は、圧力平衡し
ようとして、液位が上昇し、小径管高さと等しくなった
所で（右側と左側の圧力平衡）、中止される。この時、
スラグ底面は、大径管下端部（右側）に来て停止するの
で、スラグは流出しない。Further, the stoppage of the discharge of the molten steel is stopped when the liquid level rises and becomes equal to the height of the small diameter pipe (pressure equilibrium on the right side and the left side) in an attempt to balance the pressure. At this time,
The bottom of the slag comes to the lower end (right side) of the large diameter pipe and stops, so the slag does not flow out.
【００２６】[0026]
【発明の効果】本発明のかかるタンディッシュスラグの
流出防止効果を図３〜図５に示す。ここで、図３にタン
ディッシュ内残鋼量の比較を示す。本発明では、従来法
の１／４にタンディッシュ内残鋼量が減少した（ノズル
周辺の狭面積溶鋼を渦流的に排出する）。The effect of preventing the outflow of the tundish slag according to the present invention is shown in FIGS. Here, FIG. 3 shows a comparison of the amount of residual steel in the tundish. In the present invention, the amount of residual steel in the tundish is reduced to 1/4 of that in the conventional method (the molten steel having a small area around the nozzle is discharged in a swirling manner).
【００２７】図４に鋳造最終スラグの介在物指数の比較
を示す。本発明では、タンディッシュ内残鋼量を大きく
減少させたにもかかわらず、従来方法とほぼ同様の介在
物指数となっており、効率良くタンディッシュ内スラグ
流出を防止できたことがわかる。FIG. 4 shows a comparison of inclusion indices of the final casting slag. In the present invention, although the amount of residual steel in the tundish is greatly reduced, the inclusion index is almost the same as the conventional method, and it can be seen that the outflow of slag in the tundish can be efficiently prevented.
【００２８】図５に異鋼種連々時のＯ2 ガス吹き込み開
孔率を示す。従来方法では全てＯ2ガス吹き込みが必要
であったが、本発明ではほとんど不要となった。不開孔
時はＯ2 ガス吹き込みを実施したが、Ｏ2 ガス吹き込み
によるトラブルは一切なかった。また、Ｏ2 ガス吹き込
みを省略することにより、異鋼種連鋳時に要する時間も
二分短縮された。FIG. 5 shows the O2 gas injection hole opening ratio when different steel types are successively connected. In the conventional method, it was necessary to blow O2 gas, but in the present invention, it is almost unnecessary. O2 gas was blown in when the hole was not opened, but there were no problems due to blowing O2 gas. Also, by omitting the O2 gas blowing, the time required for continuous casting of different steel types was shortened by 2 minutes.
【００２９】なお、従来法では、Ｔ／Ｄ底部の堰直上の
高さの溶鋼は、スラグや介在物の流出防止からモールド
内排出不可。本発明は、治具の高さ以下まで排出可。従
って残鋼量に差が出る。 また、従来法と本発明のＴ／
Ｄ底部からの溶鋼排出高さの実質的な差は、大径管部
（右側）高さをかなり上回る高さとなる。In the conventional method, molten steel having a height just above the weir at the bottom of the T / D cannot be discharged into the mold because slag and inclusions are prevented from flowing out. The present invention can discharge up to the height of the jig. Therefore, there is a difference in the amount of residual steel. In addition, T / of the conventional method and the present invention
The substantial difference in molten steel discharge height from the bottom of D is a height that is considerably higher than the height of the large diameter pipe (right side).
【００３０】さらに、従来、Ｔ／Ｄ内下部のノズル上部
周辺の狭面積領域の溶鋼を（浮上した介在物多い）モー
ルド内に、排出していたのに対し、本発明は、大径管
（治具）下端（小径管上端と隙間のある側）以下の高さ
の溶鋼（浮上介在物少）をモールド内に排出するので、
残鋼量少でも介在物は少ない。Further, conventionally, the molten steel in the narrow area around the upper part of the nozzle in the lower part of the T / D was discharged into the mold (there are many floating inclusions), whereas in the present invention, the large diameter pipe ( (Jig) Since molten steel (a small amount of floating inclusions) having a height lower than the lower end (the side with a gap from the upper end of the small diameter pipe) is discharged into the mold,
Even with a small amount of residual steel, there are few inclusions.
【００３１】しかも、図４同様、従来、Ｔ／Ｄ内下部の
ノズル上部周辺の溶鋼（溶解耐火物浮、スラグ存在）を
モールド内に排出するのに対し、本発明では、治具の大
径管部下端以下高さの溶鋼（浮上介在物少なく、スラグ
なし）を排出するので、介在物，耐火物巻き込みによる
ノズル詰まりは少ない。Moreover, as in the case of FIG. 4, conventionally, molten steel (floating molten refractory, existence of slag) around the upper part of the nozzle in the lower part of the T / D is discharged into the mold, whereas in the present invention, the jig has a large diameter. Since molten steel with a height below the lower end of the pipe (no floating inclusions, no slag) is discharged, nozzle clogging due to inclusions and refractories is minimal.
【図１】この発明のスラグ流出防止方法で使用する流出
防止用の治具を示す概略断面図である。FIG. 1 is a schematic cross-sectional view showing an outflow prevention jig used in a slag outflow prevention method of the present invention.
【図２】この発明のスラグ流出防止方法で使用する治具
を示す斜視図である。FIG. 2 is a perspective view showing a jig used in the slag outflow prevention method of the present invention.
【図３】この発明方法と従来方法とのタンディッシュ内
残鋼量の比較状態を示すグラフである。FIG. 3 is a graph showing a comparison state of the amount of residual steel in the tundish between the method of the present invention and the conventional method.
【図４】この発明方法と従来方法との鋳造最終スラグ介
在物指数を示すグラフである。FIG. 4 is a graph showing a casting final slag inclusion index of the method of the present invention and the conventional method.
【図５】この発明方法と従来方法との異鋼種連々時のＯ
2 ガス吹き込み開孔率を示すグラフである。FIG. 5: O when different steel types are successively used between the method of the present invention and the conventional method
2 is a graph showing a gas blown open area ratio.
１…スラグ流出防止用の治具、２…タンディッシュ、３
…溶鋼流出用ノズル、４…タンディッシュスラグ、５…
中空大径管部、６…隙間、７…中空小径管部、８…モー
ルド内、９…上ノズル、10…三層式スライディングゲー
ト、11…浸漬ノズル。1 ... jig for slag outflow, 2 ... tundish, 3
… Molten steel outflow nozzle, 4… Tundish slag, 5…
Hollow large-diameter pipe part, 6 ... Gap, 7 ... Hollow small-diameter pipe part, 8 ... Inside mold, 9 ... Upper nozzle, 10 ... Three-layer sliding gate, 11 ... Immersion nozzle.
Claims (1)
大径管部と、この中空大径管部の下部に連通して一体的
に形成されており、上端の中空大径管部との隙間がタン
ディッシュ内部に連通している溶鋼流出用の中空小径管
部とからなる治具を、連続鋳造用タンディッシュにおけ
る底部の溶鋼流出用ノズル上端に、このノズル内と連通
した状態で設置し、 前記治具の高さの直上近傍に前記タンディッシュ内の残
鋼量が来た時期における、所謂、鋳込み末期におけるタ
ンディッシュ内残留溶鋼の排出を、前記治具の大径管下
端部と小径管上端部との隙間から治具内に導いて行うこ
とを特徴とするタンディッシュのスラグ流出防止方法。1. A hollow large-diameter pipe portion for preventing the outflow of tundish slag and a lower portion of the hollow large-diameter pipe portion are integrally formed so as to communicate with each other, and a gap between the hollow large-diameter pipe portion at the upper end is formed. A jig consisting of a hollow small-diameter pipe portion for molten steel outflow communicating with the inside of the tundish, a molten steel outflow nozzle upper end at the bottom of the continuous casting tundish, is installed in a state of communicating with this nozzle, At the time when the amount of residual steel in the tundish near the height of the jig comes, the so-called discharge of residual molten steel in the tundish at the end of casting is performed by the lower end of the large diameter pipe and the upper end of the small diameter pipe of the jig. A method for preventing outflow of slag in a tundish, which is performed by guiding the slag out of the gap between the parts and the jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP359693A JP2684946B2 (en) | 1993-01-12 | 1993-01-12 | Tundish slag outflow prevention method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP359693A JP2684946B2 (en) | 1993-01-12 | 1993-01-12 | Tundish slag outflow prevention method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06210415A JPH06210415A (en) | 1994-08-02 |
| JP2684946B2 true JP2684946B2 (en) | 1997-12-03 |
Family
ID=11561859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP359693A Expired - Fee Related JP2684946B2 (en) | 1993-01-12 | 1993-01-12 | Tundish slag outflow prevention method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2684946B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847942A (en) * | 2011-06-29 | 2013-01-02 | 宝山钢铁股份有限公司 | Spray forming pouring method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106670416B (en) * | 2017-01-11 | 2018-07-17 | 青岛特殊钢铁有限公司 | One kind being suitable for carbon, silicon, the Uncrossed grade transition method of manganese element content |
| CN113579185A (en) * | 2021-06-29 | 2021-11-02 | 红河钢铁有限公司 | Method for improving recovery rate of residual steel of continuous casting tundish |
-
1993
- 1993-01-12 JP JP359693A patent/JP2684946B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847942A (en) * | 2011-06-29 | 2013-01-02 | 宝山钢铁股份有限公司 | Spray forming pouring method |
| CN102847942B (en) * | 2011-06-29 | 2014-10-29 | 宝山钢铁股份有限公司 | Spray forming pouring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06210415A (en) | 1994-08-02 |
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