JPH0363453B2 - - Google Patents
Info
- Publication number
- JPH0363453B2 JPH0363453B2 JP10086886A JP10086886A JPH0363453B2 JP H0363453 B2 JPH0363453 B2 JP H0363453B2 JP 10086886 A JP10086886 A JP 10086886A JP 10086886 A JP10086886 A JP 10086886A JP H0363453 B2 JPH0363453 B2 JP H0363453B2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- pouring nozzle
- casting
- water
- pouring
- 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
Links
- 239000002184 metal Substances 0.000 claims description 46
- 238000005266 casting Methods 0.000 claims description 38
- 238000009749 continuous casting Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000155 melt Substances 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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は溶湯から薄板を連続的に鋳造する薄板
連続鋳造装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a continuous thin plate casting apparatus for continuously casting thin plates from molten metal.
（従来の技術）
従来の薄板連続鋳造装置を第２図により説明す
ると、１が一対の水冷ドラム、２が同各水冷ドラ
ム１の両端部間に配設したサイドカバー、２ａが
サイドダム、３がアツパーカバー、４が台板、５
がタンデツシユ、６が注湯ノズル、７がノズルス
トツパ、１０が溶湯、１１がピンチロール、１２
が鋳造される薄板と略同じ厚さのダミープレート
で、ダミープレート１２を水冷ドラム１，１及び
ピンチロール１１，１１により挟持する。また台
板４上に固定したタンデツシユ５から注湯ノズル
６を経て鋳造部へ、即ち、水冷ドラム１，１とサ
イドダム２ａとダミープレート１２との間に形成
され、且つ、サイドプレート２とアツパーカバー
３とにより覆われた鋳造部へ溶湯１０を供給す
る。この溶湯１０は、水冷ドラム１の表面で冷却
されて、凝固し、二点鎖線に示すように薄皮を形
成して、ダミープレート１２の上端部に溶着す
る。またこの状態になると、水冷ドラム１及びピ
ンチロール１１を回転し、ダミープレート１２を
下方へ送出して、連続鋳造を開始する。また上記
鋳造部内の溶湯１０の湯面高さが上昇して、注湯
ノズル６の注湯口が鋳造部内の溶湯１０に完全に
浸漬すると、ノズルストツパ７を下降させ、タン
デツシユ５から鋳造部への溶湯１０の供給量を調
節して、鋳造部内の溶湯１０の湯面を所定高さに
保持するようになつている。(Prior Art) A conventional thin plate continuous casting apparatus is explained with reference to FIG. 2. 1 is a pair of water-cooled drums, 2 is a side cover disposed between both ends of each water-cooled drum 1, 2a is a side dam, and 3 is a side cover disposed between both ends of each water-cooled drum. Upper cover, 4 is base plate, 5
is a tundish, 6 is a pouring nozzle, 7 is a nozzle stopper, 10 is a molten metal, 11 is a pinch roll, 12
The dummy plate 12 is a dummy plate having approximately the same thickness as the thin plate to be cast, and is held between water-cooled drums 1, 1 and pinch rolls 11, 11. In addition, the tundish 5 fixed on the base plate 4 passes through the pouring nozzle 6 to the casting part, that is, it is formed between the water cooling drums 1, 1, the side dam 2a, and the dummy plate 12, and the side plate 2 and the upper part are connected to each other. The molten metal 10 is supplied to the casting part covered by the cover 3. This molten metal 10 is cooled and solidified on the surface of the water-cooled drum 1, forms a thin skin as shown by the two-dot chain line, and is welded to the upper end of the dummy plate 12. In addition, in this state, the water-cooled drum 1 and the pinch roll 11 are rotated, the dummy plate 12 is sent out downward, and continuous casting is started. Further, when the level of the molten metal 10 in the casting section rises and the pouring port of the pouring nozzle 6 is completely immersed in the molten metal 10 in the casting section, the nozzle stopper 7 is lowered to pour the molten metal from the tundish 5 into the casting section. The level of the molten metal 10 in the casting section is maintained at a predetermined height by adjusting the amount of molten metal 10 supplied.
（発明が解決しようとする問題点）
前記第２図に示す従来の薄板連続鋳造装置で
は、注湯ノズル６の下端部を鋳造部の底部からか
なり高さの高い位置に設定する必要があり、注湯
ノズル６から鋳造部へ注湯すると、溶湯１０が鋳
造部の湯面に落下して、飛び散り、水冷ドラム１
の表面に付着して、凝固し、粗状（スパツタ）に
なつて、シエルが形成され、これが鋳造される薄
板に食い込んで、薄板の表面性状を悪化させる。
また注湯ノズル６が鋳造部の溶湯１０内に浸漬さ
れずに、注湯が行われると、湯面が波立つて、ド
ラム軸方向（薄板の幅方向）のシエルの厚さにバ
ラツキが生じるという問題があつた。なお上記注
湯ノズル６の下端部を鋳造部の湯面の近くに設定
したとすると、注入される溶湯１０の噴流により
シエルが溶損して、板状シエルが注湯ノズル６の
幅だけ極度に薄くなる。(Problems to be Solved by the Invention) In the conventional thin plate continuous casting apparatus shown in FIG. When molten metal is poured from the pouring nozzle 6 into the casting section, the molten metal 10 falls onto the surface of the casting section and scatters, causing the water cooling drum 1
It adheres to the surface of the sheet, solidifies, becomes rough (spatter), and forms a shell, which bites into the thin sheet being cast and deteriorates the surface quality of the sheet.
Furthermore, if pouring is performed without the pouring nozzle 6 being immersed in the molten metal 10 in the casting section, the surface of the molten metal will be undulating, causing variations in the thickness of the shell in the direction of the drum axis (width direction of the thin plate). There was a problem. Note that if the lower end of the pouring nozzle 6 is set close to the molten metal surface of the casting section, the shell will be melted and damaged by the jet of the molten metal 10 being poured, and the plate-shaped shell will be extremely damaged by the width of the pouring nozzle 6. Become thin.
（問題点を解決するための手段）
本発明は前記の問題点に対処するもので、注湯
ノズルと、互いの軸線が平行で相反する方向に回
転する一対の水冷ドラムとを有し、同注湯ノズル
から同各水冷ドラム間の鋳造部へ供給した溶湯を
同各水冷ドラム間から送出し、凝固させて、薄板
に連続的に鋳造する薄板連続鋳造装置において、
前記注湯ノズルから前記各水冷ドラム間の鋳造部
へ供給した溶湯の湯面高さを検出する検出器と、
同検出器の検出信号に基づき前記注湯ノズルの注
湯口を注湯初期に鋳造部の湯面の上昇に同調して
上昇させる注湯ノズルの高さ制御装置とを具えて
いることを特徴とした薄板連続鋳造装置に係わ
り、その目的とする処は、注湯ノズルの下端部を
鋳造部の溶湯内に常に浸漬した状態で注湯でき
て、注入される溶湯の鋳造部湯面への落下に基づ
く飛散、スパツタの形成を防止できる。また鋳造
部湯面の波立ちを防止できて、鋳造される板状シ
エルの品質を向上できる薄板連続鋳造装置を供す
る点にある。(Means for Solving the Problems) The present invention addresses the above problems and includes a pouring nozzle and a pair of water-cooled drums whose axes are parallel to each other and rotate in opposite directions. In a thin plate continuous casting device, in which molten metal is supplied from a pouring nozzle to a casting section between each water-cooled drum, the molten metal is sent out from between the same water-cooled drums, solidified, and continuously cast into a thin plate.
a detector for detecting the level height of the molten metal supplied from the pouring nozzle to the casting section between the water-cooled drums;
and a pouring nozzle height control device that raises the pouring port of the pouring nozzle in synchronization with the rise of the molten metal level in the casting section at the initial stage of pouring based on the detection signal of the detector. The purpose of this continuous thin plate casting device is to enable pouring with the lower end of the pouring nozzle always immersed in the molten metal in the casting section, and to prevent the poured molten metal from falling onto the surface of the casting section. can prevent scattering and spatter formation. Another object of the present invention is to provide a thin plate continuous casting apparatus that can prevent the molten metal surface from undulating in the casting section and improve the quality of the plate-shaped shells to be cast.
（作用）
本発明の薄板連続鋳造装置は前記のように構成
されており、検出器が注湯ノズルから各水冷ドラ
ム間の鋳造部へ供給した溶湯の湯面高さを検出
し、そのとき得られる検出信号が注湯ノズルの高
さ制御装置へ送られ、同制御装置が注湯ノズルの
注湯口を注湯初期に鋳造部の湯面の上昇に同調し
て上昇させて、注湯ノズルの注湯口を鋳造部の溶
湯に浸漬したままにする。(Function) The thin plate continuous casting apparatus of the present invention is configured as described above, in which the detector detects the level height of the molten metal supplied from the pouring nozzle to the casting section between each water-cooled drum, and The detection signal sent to the height control device of the pouring nozzle is sent to the height control device of the pouring nozzle, and the control device raises the pouring port of the pouring nozzle in synchronization with the rise of the molten metal level in the casting section at the beginning of pouring. Leave the spout immersed in the molten metal in the casting section.
（実施例）
次に本発明の薄板連続鋳造装置を第１図に示す
一実施例により説明すると、１が一対の水冷ドラ
ム、２がサイドカバー、２ａがサイドダム、３が
アツパカバー、４が台板、５がタンデツシユ、６
が注湯ノズル、７がノズルストツパ、８が一対の
ガイド部材、９が油圧シリンダ（昇降制御装置）、
１０が溶湯、１１がピンチロール、１２がダミー
プレート、１４がフアイバースコープ、１４ａが
同フアイバースコープ１４の先端部、１５がデイ
スプレイで、固定された台板４上に一対のガイド
部材８が立設されて、同各ガイド部材８間にタン
デツシユ５が昇降可能に嵌挿されているまた上記
台板４には、４本の油圧シリンダ９が取付けら
れ、同各油圧シリンダ９のピストンロツドの上端
部が上記タンデツシユ５との下面に固定され、同
タンデツシユ５の下面には、注湯ノズル６の上端
部が取付けられ、フアイバースコープ１４がアツ
パカバー３を貫通して、その先端部１４ａが冷却
ドラム１，１間の鋳造部のシールガス室内に位置
し、同フアイバースコープ１４の他端部がデイス
プレイ１５に接続している。(Embodiment) Next, the thin plate continuous casting apparatus of the present invention will be described with reference to an embodiment shown in FIG. , 5 is tandetsuyu, 6
is a pouring nozzle, 7 is a nozzle stopper, 8 is a pair of guide members, 9 is a hydraulic cylinder (lifting control device),
10 is a molten metal, 11 is a pinch roll, 12 is a dummy plate, 14 is a fiber scope, 14a is the tip of the fiber scope 14, 15 is a display, and a pair of guide members 8 are set up on a fixed base plate 4. A tundish 5 is fitted between each guide member 8 so as to be able to move up and down.Four hydraulic cylinders 9 are attached to the base plate 4, and the upper end of the piston rod of each hydraulic cylinder 9 is attached to the base plate 4. It is fixed to the lower surface of the tundish 5, and the upper end of the pouring nozzle 6 is attached to the lower surface of the tundish 5. The other end of the fiberscope 14 is connected to a display 15.
次に前記第１図に示す連続鋳造装置の作用を具
体的に説明する。まず鋳造される薄板と略同じ厚
さ、略同じ板幅のダミープレート１２を各水冷ド
ラム１と各ピンチロール１１とにより挟持し、次
いで油圧シリンダ９を縮み方向に作動し、タンデ
ツシユ５を所定量だけ下降させて、注湯ノズル６
の下端部を水冷ドラム１の外周面に接近させ、ノ
ズルストツパ７により閉じられていた注湯ノズル
６の上端部を開いて、タンデツシユ５の溶湯１０
を注湯ノズル６を経て水冷ドラム１，１間の鋳造
部へ注入する。同溶湯１０が水冷ドラム１，１の
外周面に接触して、冷却され、凝固して、二点鎖
線に示すようにシエルが形成されると、水冷ドラ
ム１，１及びピンチロール１１，１１を回転し
て、ダミープレート１２を下降させ、その上端部
に溶着している薄板を下方へ送り出して、連続鋳
造を開始する。このとき、水冷ドラム１，１間の
鋳造部にある溶湯１０の湯面高さが徐々に上昇し
て、水冷ドラム１，１と注湯ノズル６との間の湯
面の幅が広くなつて行くので、この湯面幅の変化
と注湯ノズル６の高さとをフアイバースコープ１
４により検出し、このとき得られる検出信号をデ
イスプレイ１５に内蔵しているマイクロコンピユ
ータにより湯面高さ信号に変換して、デイスプレ
イ１５の画面に表示する一方、同湯面高さ信号を
油圧シリンダ９へ送り、同油圧シリンダ９を伸長
方向に作動し、タンデツシユ５を介して注湯ノズ
ル６を鋳造部の溶湯１９に浸漬したまま湯面の上
昇に同調して上昇させる。そして鋳造部の湯面が
二点鎖線位置まで上昇すると、ノズルストツパ７
とタンデツシユ５の注湯口との隙間を調節して、
鋳造部内の湯面を所定高さに保持する。 Next, the operation of the continuous casting apparatus shown in FIG. 1 will be explained in detail. First, a dummy plate 12 having approximately the same thickness and approximately the same width as the thin plate to be cast is held between each water-cooled drum 1 and each pinch roll 11, and then the hydraulic cylinder 9 is operated in the contracting direction to move the tundish 5 by a predetermined amount. pouring nozzle 6.
The lower end of the molten metal 10 in the tundish 5 is brought close to the outer peripheral surface of the water-cooled drum 1, and the upper end of the pouring nozzle 6, which had been closed by the nozzle stopper 7, is opened.
is injected into the casting part between the water-cooled drums 1 through the pouring nozzle 6. When the molten metal 10 comes into contact with the outer peripheral surfaces of the water-cooled drums 1, 1, is cooled and solidified, and a shell is formed as shown by the two-dot chain line, the water-cooled drums 1, 1 and the pinch rolls 11, 11 are The dummy plate 12 is rotated and lowered, and the thin plate welded to the upper end of the dummy plate 12 is sent downward to start continuous casting. At this time, the height of the molten metal 10 in the casting section between the water-cooled drums 1, 1 gradually rises, and the width of the molten metal surface between the water-cooled drums 1, 1 and the pouring nozzle 6 becomes wider. Therefore, the change in the width of the hot water surface and the height of the pouring nozzle 6 can be measured using fiberscope 1.
4, and the detection signal obtained at this time is converted into a hot water level height signal by a microcomputer built in the display 15 and displayed on the screen of the display 15, while the same hot water level height signal is sent to the hydraulic cylinder. 9, the hydraulic cylinder 9 is operated in the extension direction, and the pouring nozzle 6 is raised through the tundish 5 in synchronization with the rise of the molten metal level while being immersed in the molten metal 19 in the casting section. When the melt level in the casting section rises to the position shown by the two-dot chain line, nozzle stopper 7
Adjust the gap between the spout and the pouring port of tandetsu 5,
Maintains the molten metal level in the casting section at a predetermined height.
（発明の効果）
本発明の薄板連続鋳造装置は前記のように検出
器が注湯ノズルから各水冷ドラム間の鋳造部へ供
給した溶湯の湯面高さを検出し、そのとき得られ
る検出信号が注湯ノズルの高さ制御装置へ送ら
れ、同制御装置が注湯ノズルの注湯口を注湯初期
に鋳造部の溶湯の湯面の上昇に同調して上昇させ
るので、注湯ノズルの注湯口を鋳造部の溶湯内に
常に浸漬した状態で注湯できて、注入される溶湯
の鋳造部湯面への落下に基づく飛散、スパツタの
形成を防止できる。また上記のように注湯ノズル
の注湯口を鋳造部の溶湯内に常に浸漬した状態で
注湯できるてので、鋳造部湯面の波立ちを防止で
きて、鋳造される板状シエルの品質を向上できる
効果がある。(Effects of the Invention) As described above, in the thin plate continuous casting apparatus of the present invention, the detector detects the level height of the molten metal supplied from the pouring nozzle to the casting section between each water-cooled drum, and the detection signal obtained at that time is sent to the height control device of the pouring nozzle, which raises the pouring port of the pouring nozzle in synchronization with the rise of the molten metal level in the casting section at the beginning of pouring, so that the height of the pouring nozzle increases. Molten metal can be poured while the sprue is always immersed in the molten metal in the casting section, and it is possible to prevent the pouring molten metal from scattering and forming spatters due to falling onto the surface of the casting section. In addition, as mentioned above, since the pouring nozzle can be poured with the pouring port always immersed in the molten metal in the casting section, it is possible to prevent the molten metal surface from undulating in the casting section, improving the quality of the plate-shaped shell that is cast. There is an effect that can be achieved.
以上本発明を実施例により説明したが、勿論本
発明はこのような実施例だけに局限されるもので
なく、本発明の精神を逸脱しない範囲で種々の設
計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to these embodiments, and can be modified in various ways without departing from the spirit of the present invention.
第１図は本発明に係わる薄板連続鋳造装置の一
実施例を示す縦断側面図、第２図は従来の薄板連
続鋳造装置を示す縦断側面図である。
１……水冷ドラム、６……注湯ノズル、９……
注湯ノズル６の高さ制御装置、１４……検出器。
FIG. 1 is a longitudinal sectional side view showing an embodiment of a thin plate continuous casting apparatus according to the present invention, and FIG. 2 is a longitudinal sectional side view showing a conventional thin plate continuous casting apparatus. 1...Water-cooled drum, 6...Pouring nozzle, 9...
Height control device for pouring nozzle 6, 14...detector.
Claims (1)
方向に回転する一対の水冷ドラムとを有し、同注
湯ノズルから同各水冷ドラム間の鋳造部へ供給し
た溶湯を同各水冷ドラム間から送出し、凝固させ
て、薄板に連続的に鋳造する薄板連続鋳造装置に
おいて、前記注湯ノズルから前記各水冷ドラム間
の鋳造部へ供給した溶湯の湯面高さを検出する検
出器と、同検出器の検出信号に基づき前記注湯ノ
ズルの注湯口を注湯初期に鋳造部の湯面の上昇に
同調して上昇させる注湯ノズルの高さ制御装置と
を具えていることを特徴とした薄板連続鋳造装
置。1 It has a pouring nozzle and a pair of water-cooled drums whose axes are parallel to each other and rotate in opposite directions, and the molten metal supplied from the pouring nozzle to the casting part between the water-cooled drums is distributed between the water-cooled drums. In a thin plate continuous casting apparatus that continuously casts the molten metal into a thin plate by sending it out from the molten metal, solidifying it, and continuously casting the molten metal into a thin plate, a detector for detecting the level height of the molten metal supplied from the pouring nozzle to the casting section between the respective water-cooled drums; and a pouring nozzle height control device that raises the pouring port of the pouring nozzle in synchronization with the rise of the molten metal level in the casting section at the initial stage of pouring based on the detection signal of the detector. Continuous thin plate casting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10086886A JPS62259640A (en) | 1986-05-02 | 1986-05-02 | Continuous casting apparatus for strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10086886A JPS62259640A (en) | 1986-05-02 | 1986-05-02 | Continuous casting apparatus for strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62259640A JPS62259640A (en) | 1987-11-12 |
| JPH0363453B2 true JPH0363453B2 (en) | 1991-10-01 |
Family
ID=14285292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10086886A Granted JPS62259640A (en) | 1986-05-02 | 1986-05-02 | Continuous casting apparatus for strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62259640A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01107217A (en) * | 1987-10-21 | 1989-04-25 | Sumitomo Electric Ind Ltd | Environmental resistant step index type optical fiber |
| JPH01107211A (en) * | 1987-10-21 | 1989-04-25 | Sumitomo Electric Ind Ltd | Environmental resistant optical fiber |
-
1986
- 1986-05-02 JP JP10086886A patent/JPS62259640A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62259640A (en) | 1987-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |