JPS61165257A - Pouring device in continuous casting device - Google Patents
Pouring device in continuous casting deviceInfo
- Publication number
- JPS61165257A JPS61165257A JP408185A JP408185A JPS61165257A JP S61165257 A JPS61165257 A JP S61165257A JP 408185 A JP408185 A JP 408185A JP 408185 A JP408185 A JP 408185A JP S61165257 A JPS61165257 A JP S61165257A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- pouring
- pouring nozzle
- discharge port
- receiving plate
- 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
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
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〔本発明の産業分野〕
本発明は、ベルト式、ツインドラム式、その他のスラブ
連続鋳造装置における注湯装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of the Invention] The present invention relates to a pouring device for a belt type, twin drum type, or other continuous slab casting apparatus.
従来のツインドラム式連続鋳造装置の注湯装置を第４図
に基づいて説明すると、該装置は、回転しながら溶鋼を
冷却し、凝固させ薄板鋳片４を成形する２本のドラム６
．３′ととのドラム３，５′間の鋳型内に溶鋼を供給す
る注湯ノズル１から構成されている。The pouring device of a conventional twin-drum continuous casting device will be explained based on FIG. 4. The device consists of two drums 6 that cool and solidify molten steel while rotating to form a thin plate slab 4.
．． 3' and a pouring nozzle 1 for supplying molten steel into the mold between drums 3 and 5'.
ところで、従来の上記注湯装置では、注湯ノズル１から
吐出する溶鋼流がメニスカス２〔２本のドラム５，３′
とサイド堰（図示せず）で囲まれた鋳型部内の溶鋼表面
の湯面を指す。〕を波立たせ、その結果、鋳造された鋳
片４の表面性状が悪い欠点を有している。すガわち、メ
ニスカス２が乱れることによシ、凝固開始位置が均一に
々らず、メニスカス２の波立ちによる表面傷じわの発生
および凝固の進展アンバランスに゛ よる表面割れの発
生という欠点が生ずる。特に薄板鋳片４を製造する場合
、表面傷取シが困難であり、また、製品になるまでの圧
延比が小さいので、上記欠点は致命的である。By the way, in the above-mentioned conventional pouring device, the molten steel flow discharged from the pouring nozzle 1 flows through the meniscus 2 [the two drums 5, 3'
This refers to the surface of molten steel in the mold section surrounded by side weirs (not shown). ), and as a result, the surface quality of the cast slab 4 is poor. In other words, due to the disorder of the meniscus 2, the solidification start position is not uniform, and the disadvantage is that surface scratches and wrinkles occur due to the undulation of the meniscus 2, and surface cracks occur due to unbalanced solidification progress. occurs. In particular, when manufacturing thin plate slabs 4, it is difficult to remove surface scratches, and the rolling ratio required to produce the product is small, so the above-mentioned drawbacks are fatal.
本発明は、上記従来装置の欠点を解消することを目的と
し、詳細には、メニスカスを乱さない連続鋳造装置にお
ける注湯装置を提供することを目的とする。The purpose of the present invention is to eliminate the drawbacks of the conventional devices described above, and specifically, to provide a pouring device for a continuous casting device that does not disturb the meniscus.
そして、本発明は、上記目的を達成する手段として、注
湯ノズルの内部に衝突板および／または受け板を配設し
、これによって溶鋼の流下を幅方向に均一に分散させ、
また、吐出口をスリット状とし、これによってこの吐出
口の断面積を大きくして吐出流量を遅くシ、さらに、注
湯ノズルの先端部を溶鋼中に浸漬させる点にある。すな
わち、本発明は、注湯ノズルよシ溶鋼を鋳型内に供給し
、該溶鋼を冷却して連続的に鋳片を鋳造する連続鋳造装
置における注湯装置において、注湯ノズルの内部に衝突
板および／または受け板を配設し、該注湯ノズルの吐出
口をスリット状とし、さらに誼注湯ノズルの先端部を溶
鋼中に浸漬してなることを特徴とする連続鋳造装置にお
ける注湯装置である０
以下第１〜３図に基づいて本発明の詳細な説明する。第
１図は本発明の実施例である注湯装置の概要図であり、
第２図は同装置の注湯ノズル拡大詳細図であり、第３図
は第２図Ａ−Ａ断面図である。第１〜３図に示す注湯ノ
ズル１は、しぼり５、衝突板６、受け板７、吐出口８、
補強材９および圧力孔１１からガっている。しほり５は
、この大きさと溶鋼ヘッドｈとによって溶鋼供給量が決
まる。すなわち、必要な溶鋼供給量からこのしぼり５の
大きさと個数を適宜決定する。衝突板６はしぼり５から
流下する溶鋼流を衝突させるものであり、一方、受け板
７は衝突板６から流下する溶鋼を溜めてオーバーフロー
させるものである。As a means for achieving the above object, the present invention provides a collision plate and/or a receiving plate inside the pouring nozzle, thereby uniformly distributing the flow of molten steel in the width direction.
Another feature is that the discharge port is formed into a slit shape, thereby increasing the cross-sectional area of the discharge port to slow the discharge flow rate, and further, that the tip of the pouring nozzle is immersed in the molten steel. That is, the present invention provides a pouring device for a continuous casting machine that supplies molten steel into a mold through a pouring nozzle, cools the molten steel, and continuously casts slabs, and a collision plate is provided inside the pouring nozzle. A pouring device for continuous casting equipment, characterized in that the pouring nozzle is provided with a receiving plate, the discharge port of the pouring nozzle is slit-shaped, and the tip of the pouring nozzle is immersed in molten steel. 0 Below, the present invention will be described in detail based on FIGS. 1 to 3. FIG. 1 is a schematic diagram of a pouring device which is an embodiment of the present invention.
FIG. 2 is an enlarged detailed view of the pouring nozzle of the same apparatus, and FIG. 3 is a cross-sectional view taken along the line AA in FIG. The pouring nozzle 1 shown in FIGS. 1 to 3 includes a squeezer 5, a collision plate 6, a receiving plate 7, a discharge port 8,
The reinforcing member 9 and the pressure hole 11 are exposed. The amount of molten steel supplied to the shiori 5 is determined by this size and the molten steel head h. That is, the size and number of the squeezers 5 are determined as appropriate based on the required amount of molten steel supplied. The collision plate 6 is for colliding the molten steel flowing down from the throttle 5, while the receiving plate 7 is for collecting the molten steel flowing down from the collision plate 6 and causing it to overflow.
吐出口８はドラム３．３′の間に溶鋼を供給するだめの
ものであり、その形状はスリット状になっている。この
吐出口８を長いスリット状にしたとき、注湯ノズル１全
体の強度が弱くなるので、適宜補強材９を設ける。また
、注湯ノズル１の外側雰囲気との均圧化またはガスシー
ルのために圧力孔１１を適宜設ける。The discharge port 8 is for supplying molten steel between the drums 3 and 3', and has a slit-like shape. When the discharge port 8 is formed into a long slit shape, the strength of the pouring nozzle 1 as a whole becomes weak, so a reinforcing material 9 is provided as appropriate. Further, a pressure hole 11 is appropriately provided for pressure equalization with the outside atmosphere of the pouring nozzle 1 or for gas sealing.
第１〜３図に示す注湯装置の作用を説明すると、しぼり
５から流出した溶鋼は衝突板６に衝突し、次いで、受け
板７に溜る。この受け板７により溶鋼はドラム３．３１
の幅方向に均一に分散される。次に、受け板７をオーバ
ーフローし、吐出口８へ注ぐ。To explain the operation of the pouring device shown in FIGS. 1 to 3, molten steel flowing out from the squeezer 5 collides with the collision plate 6 and then accumulates on the receiving plate 7. The molten steel is transferred to the drum 3.31 by this receiving plate 7.
evenly distributed in the width direction. Next, it overflows the receiving plate 7 and pours into the discharge port 8.
ところで、第１図に示すように、注湯ノズル１はメニス
カス２の下に浸漬されており、また吐出口８のところに
はブール１０ができる。この吐出口８の断面積はしほり
５の断面積よりも非常に大きくされているので、溶鋼は
吐出口８から静かに流出することとなる。例えばしぼシ
５の流出速度が２．５ｍ／ｓ 程度に対して吐出口８
からの流出速度はａ１ｍ／ｓ 程度である。以上のこ
とから、吐出口８から流出する溶鋼流によって湯面表面
が影響を受けず、湯面表面が波立つことがない。By the way, as shown in FIG. 1, the pouring nozzle 1 is immersed under the meniscus 2, and a boule 10 is formed at the outlet 8. Since the cross-sectional area of the discharge port 8 is made much larger than the cross-sectional area of the shield 5, the molten steel flows out from the discharge port 8 quietly. For example, when the outflow velocity of the grain 5 is about 2.5 m/s, the discharge port 8
The outflow velocity from the pipe is about a1 m/s. From the above, the surface of the molten metal is not affected by the flow of molten steel flowing out from the discharge port 8, and the surface of the molten metal does not ripple.
以上本発明の詳細な説明したが、さらに本発明の具体例
をあげて、本発明をよシ詳細に説明する。Although the present invention has been described in detail above, the present invention will be explained in more detail by giving specific examples of the present invention.
本発明の注湯装置をツインドラム方式の薄板連続鋳造装
置に適用した。この連続鋳造装置は、ドラム直径２００
［１ｗｍ Ｂ １ ドラム幅１２００゜のドラムを
使用した。得られる鋳片の寸法は３■厚Ｘ１２００ｍｇ
とし、この時のドラム回転速度は約′５０ ｍ／ｍｉｎ
で鋳造した。この時用いた注湯ノズルは、セラミッ
クス製であり、注湯ノズルの幅は１０００闘とした。な
お、この時、溶鋼中に注湯ノズルは、１００ｍ浸漬し、
鋳造前は予熱を施した。The pouring device of the present invention was applied to a twin-drum continuous thin plate casting device. This continuous casting equipment has a drum diameter of 200 mm.
[1wm B 1 A drum with a drum width of 1200° was used. The dimensions of the obtained slab are 3cm thick x 1200mg
The drum rotation speed at this time is approximately 50 m/min.
It was cast in The pouring nozzle used at this time was made of ceramics, and the width of the pouring nozzle was 1000 mm. At this time, the pouring nozzle was immersed for 100 m in the molten steel.
Preheating was performed before casting.
以上の諸条件で、鋳片の表面性状のよい安定した鋳造が
できだ。Under the above conditions, stable casting with good surface quality of the slab can be achieved.
本発明は、以上詳記したように、注湯ノズルの内部に衝
突板および／または受け板を配設し、また、吐出口をス
リット状とし、さらに、注湯ノズルの先端部を溶鋼中に
浸漬したものであるから、鋳型部への溶鋼の供給が、ド
ラム幅方向に均一に、かつ静かにできるので、メニスカ
スの乱れがなく、表面性状の良好な鋳片を得ることがで
きる効果が生ずる。As described in detail above, the present invention provides a collision plate and/or a receiving plate inside a pouring nozzle, a slit-shaped discharge port, and a tip of the pouring nozzle that is placed in molten steel. Because it is immersed, molten steel can be supplied to the mold uniformly and quietly in the width direction of the drum, resulting in no meniscus disturbance and the ability to obtain slabs with good surface properties. .
第１図は本発明の実施例である注湯装置の概要図であり
、第２図は同装置の注湯ノズル拡大詳細図でちゃ、第５
図は第２図Ａ−Ａ断面図である。第４図は従来の注湯装
置の概要図である。
１・・・・・・・・・注湯ノズル
２・・・・・・・・・ メニスカス
３．３′・・・・・・・・・ ドラム
４・・・・・・・・・鋳片
５・・・・・・・・・ しほり
６・・・・・・・・・衝突板
７・・・・・・・・・受け板
８・・・・・・・・・吐出口
９・・・・・・・・・補強材
１０・・・・・・・・・ プール
１１・・・・・・・・・圧力孔
復代理人 内 １） 明
復代理人 萩 原 亮 −FIG. 1 is a schematic diagram of a pouring device according to an embodiment of the present invention, FIG. 2 is an enlarged detailed view of the pouring nozzle of the same device, and FIG.
The figure is a sectional view taken along the line AA in FIG. FIG. 4 is a schematic diagram of a conventional pouring device. 1...... Pouring nozzle 2... Meniscus 3.3'... Drum 4...... Slab 5... Shiori 6... Collision plate 7... Receiving plate 8... Discharge port 9...・・・・・・Reinforcement material 10・・・・・・Pool 11・・・・・・・・・Pressure hole sub-agent 1) Meifuku agent Ryo Hagihara -
Claims (1)
て連続的に鋳片を鋳造する連続鋳造装置における注湯装
置において、注湯ノズルの内部に衝突板および／または
受け板を配設し、該注湯ノズルの吐出口をスリット状と
し、さらに該注湯ノズルの先端部を溶鋼中に浸漬してな
ることを特徴とする連続鋳造装置における注湯装置。In a pouring device of a continuous casting machine that supplies molten steel from a pouring nozzle into a mold, cools the molten steel, and continuously casts slabs, a collision plate and/or a receiving plate are disposed inside the pouring nozzle. 1. A pouring device for a continuous casting machine, characterized in that the pouring nozzle has a slit-shaped discharge port, and the tip of the pouring nozzle is immersed in molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP408185A JPS61165257A (en) | 1985-01-16 | 1985-01-16 | Pouring device in continuous casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP408185A JPS61165257A (en) | 1985-01-16 | 1985-01-16 | Pouring device in continuous casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61165257A true JPS61165257A (en) | 1986-07-25 |
| JPH0516935B2 JPH0516935B2 (en) | 1993-03-05 |
Family
ID=11574832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP408185A Granted JPS61165257A (en) | 1985-01-16 | 1985-01-16 | Pouring device in continuous casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165257A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4865115A (en) * | 1987-12-21 | 1989-09-12 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Pouring device for dual-roll type continuous casting machines |
| US4883113A (en) * | 1988-03-03 | 1989-11-28 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Pouring device for dual-roll type continuous casting machine |
| FR2668966A1 (en) * | 1990-11-14 | 1992-05-15 | Ishikawajima Harima Heavy Ind | CONTINUOUS BAND CASTING. |
| US5547014A (en) * | 1993-06-17 | 1996-08-20 | Didier-Werke Ag | Assembly of mold and immersion nozzle with improved discharge channel |
| KR100470661B1 (en) * | 2000-12-22 | 2005-03-07 | 주식회사 포스코 | A Device For Supplying Molten Steel Uniformly And A Continuous Caster |
| KR100676063B1 (en) * | 2005-10-11 | 2007-01-30 | 주식회사 포스코 | Continuous casting apparatus with controlling unit for discharging molten steel |
| JP2009208140A (en) * | 2008-03-06 | 2009-09-17 | Fujifilm Corp | Manufacturing method of aluminum alloy sheet for planographic printing plate, aluminum alloy sheet for planographic printing plate and support for planographic printing plate manufactured by the method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1611911A (en) * | 1925-02-20 | 1926-12-28 | Hazelett Storage Battery Compa | Apparatus for casting sheet metal |
| US2128941A (en) * | 1936-04-01 | 1938-09-06 | American Rolling Mill Co | Direct casting of sheetlike metal structures |
| US2128942A (en) * | 1936-04-01 | 1938-09-06 | American Rolling Mill Co | Direct casting apparatus |
-
1985
- 1985-01-16 JP JP408185A patent/JPS61165257A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1611911A (en) * | 1925-02-20 | 1926-12-28 | Hazelett Storage Battery Compa | Apparatus for casting sheet metal |
| US2128941A (en) * | 1936-04-01 | 1938-09-06 | American Rolling Mill Co | Direct casting of sheetlike metal structures |
| US2128942A (en) * | 1936-04-01 | 1938-09-06 | American Rolling Mill Co | Direct casting apparatus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4865115A (en) * | 1987-12-21 | 1989-09-12 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Pouring device for dual-roll type continuous casting machines |
| US4883113A (en) * | 1988-03-03 | 1989-11-28 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Pouring device for dual-roll type continuous casting machine |
| FR2668966A1 (en) * | 1990-11-14 | 1992-05-15 | Ishikawajima Harima Heavy Ind | CONTINUOUS BAND CASTING. |
| US5547014A (en) * | 1993-06-17 | 1996-08-20 | Didier-Werke Ag | Assembly of mold and immersion nozzle with improved discharge channel |
| KR100470661B1 (en) * | 2000-12-22 | 2005-03-07 | 주식회사 포스코 | A Device For Supplying Molten Steel Uniformly And A Continuous Caster |
| KR100676063B1 (en) * | 2005-10-11 | 2007-01-30 | 주식회사 포스코 | Continuous casting apparatus with controlling unit for discharging molten steel |
| JP2009208140A (en) * | 2008-03-06 | 2009-09-17 | Fujifilm Corp | Manufacturing method of aluminum alloy sheet for planographic printing plate, aluminum alloy sheet for planographic printing plate and support for planographic printing plate manufactured by the method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516935B2 (en) | 1993-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |