JPS63132754A - Pouring nozzle in continuous casting apparatus - Google Patents
Pouring nozzle in continuous casting apparatusInfo
- Publication number
- JPS63132754A JPS63132754A JP28045986A JP28045986A JPS63132754A JP S63132754 A JPS63132754 A JP S63132754A JP 28045986 A JP28045986 A JP 28045986A JP 28045986 A JP28045986 A JP 28045986A JP S63132754 A JPS63132754 A JP S63132754A
- Authority
- JP
- Japan
- Prior art keywords
- pouring
- mold
- molten steel
- box body
- molten metal
- 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.)
- Pending
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 27
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 abstract 7
- 239000010959 steel Substances 0.000 abstract 7
- 238000010276 construction Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】 Ｍ東上の利用分野 本発明は連続鋳造装置における注湯ノズρに関する。[Detailed description of the invention] Fields of use of M Tojo The present invention relates to a pouring nozzle ρ in a continuous casting apparatus.
従来の技術
従来、連続鋳造装置においては、注湯時に波がたたない
ように、例えば第３図に示すように、一対のモールドロ
ー／ｋ（３１Ａバ３１Ｂ）間に注入された溶湯の湯面に
２枚の板体（３２ＡＸ３２Ｂ）を平行にしかもその下半
部が浸漬するように配置したものがある（特開昭６０−
３０５５５号公報）。しかし、この板体（３２Ａ）（３
２Ｂ）によると、波の方向が一定となり定常波が発生し
やすくなるとともに板体（３２Ａバ３２Ｂ）自身が振動
しやすいという欠点がある。このような欠点を解消する
ものとして、第４図に示すような浸漬型ノズルがある。2. Description of the Related Art Conventionally, in continuous casting equipment, in order to prevent waves during pouring, the molten metal poured between a pair of mold rows/k (31A and 31B) was There is one in which two plates (32AX32B) are arranged parallel to each other and their lower halves are immersed (Japanese Patent Laid-Open No. 1983-
Publication No. 30555). However, this plate (32A) (3
According to 2B), there is a drawback that the direction of the waves is constant and standing waves are likely to occur, and the plate body (32A bar 32B) itself is likely to vibrate. An immersion type nozzle as shown in FIG. 4 is available as a solution to these drawbacks.
このノズ／Ｌ／（至）は、鉛直方向の注湯用筒体−の下
端部左右に水平方向でもって注湯口（３５ＡＸ３５Ｂ）
が形成されたものである。したがって、このノズ／Ｌ’
１Ｂ３１により注湯を行なう場合、注湯口（３５Ａ）（
３５Ｂ）が完全に浸漬した状態で行なわれる。This nozzle /L/(to) is located horizontally on the left and right of the lower end of the vertical pouring cylinder (35AX35B).
was formed. Therefore, this nozzle/L'
When pouring with 1B31, use the pouring port (35A) (
35B) is carried out under complete immersion.
発明が解決しようとする間融点
上記従来の浸漬型ノズルによると、溶湯は注湯用筒体（
財）の底部で直角方向に曲げられて大きい速度でもって
流出される。このため、鋳型表面においては、凝固殻の
成長が妨げられるとともに１鋳型表面が傷つきやすいと
いう問題があシ、また湯面に浮遊するスラグが攪拌され
て鋳造物的に混入するという問題もある。According to the above-mentioned conventional immersion nozzle, the molten metal flows through the pouring cylinder (
The material is bent at right angles at the bottom of the container and flowed out at a high velocity. For this reason, there is a problem that the growth of the solidified shell is hindered on the mold surface, and the surface of the mold is easily damaged.There is also a problem that slag floating on the surface of the mold is stirred and mixed into the casting.
そこで、本発明は上記問題を解消し得る連続鋳造装置に
おける注湯ノズμを堤供することを一目的とする。Therefore, one object of the present invention is to provide a pouring nozzle μ for a continuous casting apparatus that can solve the above-mentioned problems.
問題を解決するための手段
上記問題を解決するため、本発明の連続鋳造装置におけ
る注湯ノズルは、鋳型内に挿入可能な大きさにされた箱
体内の左右位置にオーバーフロー用の堰板を立設し、こ
れら両堰板の内側に形成される溶湯導入室に対応する箱
体上壁に注湯用筒状体を貫通して設けるとともに、筒状
体下端を上記堰板上端より下方に位置させ、上紀両堰板
の外側に形成されるオーバーフロー室に対応する箱体側
壁下部に注湯口を形成するとともに、これらオーバーフ
ロー室に対応する箱体上壁に空気抜き穴を形成したもの
である。Means for Solving the Problem In order to solve the above problem, the pouring nozzle in the continuous casting apparatus of the present invention has weir plates for overflow placed on the left and right positions inside the box body, which is sized to be inserted into the mold. A cylindrical body for pouring the molten metal is provided so as to penetrate through the upper wall of the box corresponding to the molten metal introduction chamber formed inside both of these weir plates, and the lower end of the cylindrical body is positioned below the upper end of the weir plate. A spout was formed in the lower part of the side wall of the box body corresponding to the overflow chambers formed on the outside of both the upper and lower weir plates, and air vent holes were formed in the upper wall of the box body corresponding to these overflow chambers.
作 用
上記構成においては、注湯用筒状体から溶湯導入室内に
注入された溶湯は、−４箱体底壁に衝突した後、堰板を
越えてオーバーフロー室に入り、そして箱体［！：下部
の注湯口から鋳型内に流出する。このため、溶湯の流出
速度が非常に遅くなり、したがって鋳型表面における凝
固殻の形成がスムースに行なわれるとともに、鋳型表面
Ｋｌをつけるのを防止でき、さらに箱体内の堰板上方で
スラグが浮遊して分離されるため、鋳造物へのスラグの
混入を防止することができる。Function In the above configuration, the molten metal injected into the molten metal introduction chamber from the pouring cylinder collides with the bottom wall of the -4 box, crosses the weir plate, enters the overflow chamber, and then enters the overflow chamber of the box [! : Flows into the mold from the pouring hole at the bottom. As a result, the flow rate of the molten metal is extremely slow, and a solidified shell is smoothly formed on the mold surface, and it is possible to prevent Kl from forming on the mold surface, and furthermore, the slag is suspended above the weir plate inside the box. Since the slag is separated by the slag, it is possible to prevent slag from being mixed into the casting.
夾苑例 以下、本発明の一実施例を図面に基づき説明する。Kyoen example Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図および第２図において、（１）は例えば前後一対
の長辺堰（２Ａ）（２Ｂ）と、左右一対の短辺堰（３Ａ
）（３Ｂ）とから構成された連続鋳造用の鋳型（４）内
に挿入配置された注湯用ノズルである。この注湯用ノズ
／Ｌ’ （１）は、鋳型（４）内に挿入可能にされ九平
面視長方形状の箱体（５）と、この箱体（５）内の左右
位置において箱体底壁（５ａ）から立設された一対のオ
ーバーフロー用の堰板（６Ａ）（６Ｂ）、これら両堰板
（６Ａ）（６Ｂンの内側に形成される溶湯導入室（７）
に対応する箱体上！（５ｂ）を貫通してしかも下端開口
縁が上記堰板（６ＡＸ６Ｂ）上端縁より下方となるよう
に設けられた注湯用筒状体（８）と、上記両堰板（６Ａ
）（６Ｂ）の外側に形成されるオーバーフロー室（９Ａ
）（９Ｂ）に対応する箱体側ＩＩ、（５ｃ）下部に形成
された注湯口（ＩＱＡＸＩＱＢ）と各オーバーフロー室
（９Ａ）（９Ｂ）に対応する箱体上壁（５ｂ）に形成さ
れた空気抜き穴（１１Ａバ１１Ｂ）と、短辺堰（３Ａ）
（３Ｂ）側から出退自在にされて上記注湯口（ＩＯＡ）
（ＩＯＢ）を開閉自在な閉塞部材（１２ＡＸ１２Ｂ）と
、これら閉塞部材（１２Ａバ１２Ｂ）を出退させるシリ
ンダー装置（１３Ａ）（１３Ｂ）とから構成されている
。なお、Ｑ４は筒状体（８）の開口下方位置の箱体底壁
（５ａ）上にしかも堰板（６Ａ）（６Ｂ）と平行に設け
られた断面三角形状の補強部材で、注湯時の衝撃に対処
するためのものである。In Figures 1 and 2, (1) is, for example, a pair of long side weirs (2A) (2B) in front and back, and a pair of short side weirs (3A) on the left and right.
) (3B) is a pouring nozzle inserted into a continuous casting mold (4). This pouring nozzle/L' (1) can be inserted into the mold (4), and is attached to a box (5) having a rectangular shape when viewed from nine planes, and at the bottom of the box at the left and right positions within this box (5). A pair of overflow weir plates (6A) (6B) erected from the wall (5a), and a molten metal introduction chamber (7) formed inside these weir plates (6A) (6B).
On the box body that corresponds to! (5b) and is provided so that the lower end opening edge is below the upper edge of the weir plate (6AX6B), and both of the weir plates (6A
) (6B) is formed outside the overflow chamber (9A
) (9B) corresponding to the box side II, (5c) the pouring port (IQAXIQB) formed at the bottom and the air vent formed on the box upper wall (5b) corresponding to each overflow chamber (9A) (9B) Hole (11A bar 11B) and short side weir (3A)
(3B) The above pouring port (IOA) can be freely entered and exited from the side.
(IOB) consists of a closing member (12AX12B) that can be freely opened and closed, and a cylinder device (13A) (13B) that moves these closing members (12A bar 12B) in and out. Note that Q4 is a reinforcing member with a triangular cross section that is provided on the box bottom wall (5a) below the opening of the cylindrical body (8) and parallel to the weir plates (6A) (6B). It is designed to deal with the impact of
上記構成において、まず注湯前に、鋳型（４）内の所定
位置に注湯ノズ／ｌ／ （１）を挿入し、第１図仮想線
で示すように、その注湯口ＣＩＱＡバ１０Ｂ）を閉塞部
材（１２ＡＸ１２Ｂ）より閉鎖する。そして、この状態
で筒状体（８）から溶湯を箱体（５）内にある程度注入
した後、閉塞部材（１２ＡＸ１２Ｂ）を退入させて注湯
口Ｃｌ０Ａ）（ＩＯＢンを開くとともに筒状体（８）か
ら溶湯を溶湯導入室（７）内に連続的に注入する。この
時の箱体（５）内の溶湯の流れについて説明すると、筒
状体（８）を出た溶湯は箱体底壁（５ｂ）上中央で左右
に分かれ堰板（６Ａ）（６Ｂ）を絨えてオーバーフロー
室（９Ａ）（９Ｂ）に入り、そして下方の注湯口（ＩＱ
ＡＸＩＱＢ）から鋳型（４）内に流入する。In the above configuration, before pouring the metal, first insert the pouring nozzle /l/ (1) into a predetermined position in the mold (4), and close the pouring port CIQA bar 10B) as shown by the imaginary line in Figure 1. Close from member (12AX12B). In this state, after injecting a certain amount of molten metal from the cylindrical body (8) into the box body (5), the closing member (12AX12B) is retracted to open the pouring port Cl0A) (IOB) and the cylindrical body ( 8), the molten metal is continuously injected into the molten metal introduction chamber (7).To explain the flow of the molten metal inside the box (5) at this time, the molten metal coming out of the cylindrical body (8) flows into the bottom of the box. It is divided into left and right parts at the top center of the wall (5b), crosses the weir plates (6A) (6B), enters the overflow chamber (9A) (9B), and then enters the lower pouring port (IQ).
AXIQB) into the mold (4).
この上うに１溶湯は堰板（６Ａ）（６Ｂ）を越えて流れ
るため、溶湯の流出速度が非常に遅くな９、鋳型（４）
内の溶湯をあまり攪拌することがないとともに、鋳型（
４）に与える衝撃が少なくなる。また、堰板（６Ａ）（
６Ｂ）のオーバーフロ一部ではスラグ（のろ）が表面に
浮遊して溶湯から分離される。また箱体（５）内の溶湯
はほとんど空気に触れないため温度降下が少なく、短辺
堰（３Ａ）（３Ｂ）に付着する拘束シェルの生成を防止
できる。On top of this, the molten metal flows over the weir plates (6A) (6B), so the flow rate of the molten metal is very slow9.Mold (4)
The molten metal inside the mold is not stirred too much, and the mold (
4) The impact on the body is reduced. In addition, weir plate (6A) (
In the overflow part of 6B), slag floats on the surface and is separated from the molten metal. Furthermore, since the molten metal inside the box body (5) hardly comes into contact with air, the temperature drop is small, and the formation of a restraining shell that adheres to the short side weirs (3A) (3B) can be prevented.
発明の効果
上記本発明の構成によると、注湯用筒状体から溶湯導入
室内に注入された溶湯は、一旦箱体底壁に衝突した後、
堰板を越えてオーバーフロー室に入り、そして箱体側壁
下部の注湯口から鋳型内に流出する九め、溶湯の流出速
度が非常に遅くなシ、したがって鋳型表面における凝固
殻の形成がスムースに行なわれるとともに、鋳型表面に
傷をつけるのを防止、でき、さらに箱体内の堰板上方で
スラグが浮遊して分離されるため、鋳造物へのスラグの
混入を防止することができる。Effects of the Invention According to the configuration of the present invention described above, the molten metal poured into the molten metal introduction chamber from the pouring cylinder once collides with the bottom wall of the box, and then
The molten metal passes over the weir plate, enters the overflow chamber, and flows out into the mold from the pouring hole at the bottom of the side wall of the box.The outflow speed of the molten metal is very slow, so that a solidified shell is formed smoothly on the mold surface. At the same time, it is possible to prevent the surface of the mold from being damaged.Furthermore, since the slag is suspended and separated above the weir plate inside the box, it is possible to prevent slag from getting into the casting.
第１図および第２図は本発明の一実施例を示すもので、
第１図は全体断面図、第２図は第１図の１−Ｉ矢視図、
第３図および第４図は従来例を示すもので１、第３図は
装部拡大斜視図、第４図は一部切欠側面図である。
（１）・・・注湯用ノズル、（４）・・・鋳型、（５）
・・・箱体、（５ａ）・・・箱体底壁、（５ｂ）・・・
箱体上壁、（５Ｃ）・・・箱体側壁、（６Ａ）（６Ｂ）
・・・堰板、（７）・・・溶湯導入室、（８）・・・注
湯用筒状体、（９Ａ）（９Ｂ） ・＃−パー７ｏ−室、
（１（ＡＸＩＯＢ） ”’注湯口、（ＩＩＡＸＩＩＢ）
・・・空気抜き穴。
代理人 森 本 義 弘
第３図
第４図1 and 2 show an embodiment of the present invention,
Fig. 1 is an overall sectional view, Fig. 2 is a view taken along arrow 1-I in Fig. 1,
3 and 4 show a conventional example, in which FIG. 1 is an enlarged perspective view of the mounting part, and FIG. 4 is a partially cutaway side view. (1)...Pouring nozzle, (4)...Mold, (5)
...Box body, (5a)...Box bottom wall, (5b)...
Box top wall, (5C)...Box side wall, (6A) (6B)
... Weir plate, (7) ... Molten metal introduction chamber, (8) ... Cylindrical body for pouring metal, (9A) (9B) ・#-Par7o-chamber,
(1(AXIOB) ”'Pouring port, (IIAXIIB)
...Air vent hole. Agent Yoshihiro MorimotoFigure 3Figure 4
Claims (1)
置にオーバーフロー用の堰板を立設し、これら両堰板の
内側に形成される溶湯導入室に対応する箱体上壁に注湯
用筒状体を貫通して設けるとともに、筒体下端を上記堰
板上端より下方に位置させ、上記両堰板の外側に形成さ
れるオーバーフロー室に対応する箱体側壁下部に注湯口
を形成するとともに、これらオーバーフロー室に対応す
る箱体上壁に空気抜き穴を形成したことを特徴とする連
続鋳造装置における注湯ノズル。1. Weir plates for overflow are erected on the left and right positions in the box body, which is sized to be inserted into the mold, and on the upper wall of the box body corresponding to the molten metal introduction chamber formed inside these weir plates. In addition to penetrating the cylindrical body for pouring molten metal, the lower end of the cylindrical body is located below the upper end of the weir plate, and a pouring port is provided at the lower part of the side wall of the box corresponding to the overflow chamber formed on the outside of both of the weir plates. A pouring nozzle for a continuous casting apparatus, characterized in that an air vent hole is formed in the upper wall of the box body corresponding to the overflow chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28045986A JPS63132754A (en) | 1986-11-25 | 1986-11-25 | Pouring nozzle in continuous casting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28045986A JPS63132754A (en) | 1986-11-25 | 1986-11-25 | Pouring nozzle in continuous casting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63132754A true JPS63132754A (en) | 1988-06-04 |
Family
ID=17625355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28045986A Pending JPS63132754A (en) | 1986-11-25 | 1986-11-25 | Pouring nozzle in continuous casting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63132754A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5067555A (en) * | 1989-07-11 | 1991-11-26 | Nisshin Steel Co., Ltd. | Process and apparatus for continuous casting of metal strip |
| US5794682A (en) * | 1995-11-23 | 1998-08-18 | Usinor Sacilor (Societe Anonyme) | Nozzle plant equipped with such a nozzle, for the continuous casting of metal products |
| US6070647A (en) * | 1996-12-23 | 2000-06-06 | Ishikawajima-Harima Heavy Industries Company Limited | Casting metal strip |
| US6073680A (en) * | 1996-09-16 | 2000-06-13 | Ishikawajima-Harima Heavy Industries Company Limtied | Strip casting |
| US6095233A (en) * | 1996-01-24 | 2000-08-01 | Ishikawajima-Harima Heavy Industries Company Limited | Metal delivery system for continuous caster |
| KR100813194B1 (en) | 2006-10-18 | 2008-03-13 | 주식회사 포스코 | Continuous casting machine for tundish |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51138537A (en) * | 1975-05-27 | 1976-11-30 | Kawasaki Steel Co | Intermediate container for molten metal excelent in floatinggseparation of nonnmetallic foreign matter |
| JPS60213345A (en) * | 1984-04-09 | 1985-10-25 | Mitsubishi Heavy Ind Ltd | Tundish for continuous casting device |
-
1986
- 1986-11-25 JP JP28045986A patent/JPS63132754A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51138537A (en) * | 1975-05-27 | 1976-11-30 | Kawasaki Steel Co | Intermediate container for molten metal excelent in floatinggseparation of nonnmetallic foreign matter |
| JPS60213345A (en) * | 1984-04-09 | 1985-10-25 | Mitsubishi Heavy Ind Ltd | Tundish for continuous casting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5067555A (en) * | 1989-07-11 | 1991-11-26 | Nisshin Steel Co., Ltd. | Process and apparatus for continuous casting of metal strip |
| US5794682A (en) * | 1995-11-23 | 1998-08-18 | Usinor Sacilor (Societe Anonyme) | Nozzle plant equipped with such a nozzle, for the continuous casting of metal products |
| US6095233A (en) * | 1996-01-24 | 2000-08-01 | Ishikawajima-Harima Heavy Industries Company Limited | Metal delivery system for continuous caster |
| US6073680A (en) * | 1996-09-16 | 2000-06-13 | Ishikawajima-Harima Heavy Industries Company Limtied | Strip casting |
| US6070647A (en) * | 1996-12-23 | 2000-06-06 | Ishikawajima-Harima Heavy Industries Company Limited | Casting metal strip |
| KR100813194B1 (en) | 2006-10-18 | 2008-03-13 | 주식회사 포스코 | Continuous casting machine for tundish |
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