JPH0513024B2 - - Google Patents
Info
- Publication number
- JPH0513024B2 JPH0513024B2 JP408085A JP408085A JPH0513024B2 JP H0513024 B2 JPH0513024 B2 JP H0513024B2 JP 408085 A JP408085 A JP 408085A JP 408085 A JP408085 A JP 408085A JP H0513024 B2 JPH0513024 B2 JP H0513024B2
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- pouring
- pouring nozzle
- mold
- present
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 238000009749 continuous casting Methods 0.000 claims description 8
- 230000005499 meniscus Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000037303 wrinkles 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
〔本発明の産業分野〕
本発明は、ベルト式やインドラム式などの移動
鋳型式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 moving mold type continuous casting apparatus such as a belt type or an in-drum type.
従来のツインドラム方式連続鋳造装置の注湯装
置を第２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３，３′と、このドラム３，
３′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. 2. The device consists of two drums 3, 3 that cool and solidify molten steel while rotating to form a thin plate slab 4. ' and this drum 3,
It consists of a pouring nozzle 1 that supplies molten steel into the mold between 3' and 3'.
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３，３′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。すなわち、メニスカス２が
乱れることにより、凝固開始位置が均一になら
ず、メニスカス２の波立ちによる表面湯じわの発
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、表面傷取りが困難であり、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 into the meniscus 2 [molten steel surface on the surface of the molten steel in the mold section surrounded by two drums 3, 3' and a side weir (not shown)]. Point to the surface. ), and as a result, the surface quality of the cast slab 4 is poor. That is, due to the disorder of the meniscus 2, the solidification start position is not uniform, resulting in disadvantages such as the occurrence of surface wrinkles due to the undulation of the meniscus 2 and the occurrence of surface cracks due to unbalanced solidification progress. 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.
〔本発明の目的〕
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移
動鋳型式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。[Object of the present invention] The purpose of the present invention is to eliminate the drawbacks of the above-mentioned conventional devices, and specifically, to provide a pouring device for a moving mold type 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、注湯ノズルの先端側面に溶鋼吐出口を設
け、溶鋼流を鋳型の幅方向に分散させるバツフル
板を鋳型内に配設し、かつ、上記注湯ノズルおよ
びバツフル板を鋳型内の溶鋼中に浸漬した点にあ
る。すなわち、本発明は、注湯ノズルより溶鋼を
移動注型内に供給し、該溶鋼を冷却して連続的に
鋳片を鋳造する移動型式連続鋳造装置における注
湯装置において、先端側面に溶鋼吐出口を備えた
注湯ノズルを、前記吐出口を溶鋼中に浸漬して配
置するとともに、該注湯ノズルの側面と上記移動
鋳型との間に下部を溶鋼中に浸漬し、かつ、移動
鋳型幅方向に延在するバツフル板を設けたことを
特徴とする連続鋳造装置における注湯装置であ
る。
As a means for achieving the above-mentioned object, the present invention provides a molten steel discharge port on the side surface of the tip of the pouring nozzle, and arranges a buttful plate in the mold to disperse the molten steel flow in the width direction of the mold, and The point is that the pouring nozzle and the full plate are immersed in the molten steel in the mold. That is, the present invention provides a pouring device for a movable continuous casting machine that supplies molten steel from a pouring nozzle into a movable casting mold, cools the molten steel, and continuously casts slabs. A pouring nozzle with an outlet is disposed with the discharge port immersed in the molten steel, and a lower part is immersed in the molten steel between the side surface of the pouring nozzle and the movable mold, and the width of the movable mold is This is a pouring device for a continuous casting machine, characterized in that it is provided with a buff-full plate extending in the direction.
以下第１図に基づいて本発明を詳細に説明す
る。第１図は本発明の実施例である注湯装置であ
り、該装置は、バツフル板５と注湯ノズル１から
なる。バツフル板５は注湯ノズル１とドラム３お
よび３′との中間に配設し、このバツフル板５は
専用の治具または注湯ノズル１と直結させること
により支持する。一方、注湯ノズル１は、その先
端側面に溶鋼吐出口６を設け、注湯ノズル１の先
端部において、溶鋼が水平方向に流出するように
する。この溶鋼吐出口６は複数個設け、ドラム
３，３′の幅方向に適宜配列する。また、この溶
鋼吐出口６の大きさは溶鋼供給量から適宜決定す
る。 The present invention will be explained in detail below based on FIG. FIG. 1 shows a pouring device according to an embodiment of the present invention, which consists of a baffle plate 5 and a pouring nozzle 1. As shown in FIG. The buffle plate 5 is disposed between the pouring nozzle 1 and the drums 3 and 3', and is supported by a dedicated jig or by being directly connected to the pouring nozzle 1. On the other hand, the pouring nozzle 1 is provided with a molten steel discharge port 6 on the side surface of its tip so that the molten steel flows out in the horizontal direction at the tip of the pouring nozzle 1. A plurality of these molten steel discharge ports 6 are provided and are appropriately arranged in the width direction of the drums 3, 3'. Further, the size of the molten steel discharge port 6 is appropriately determined based on the amount of molten steel supplied.
第１図に示す注湯装置の作用を説明すると、注
湯ノズル１の先端側面の溶鋼吐出口６から供給す
る溶鋼流は、バツフル板５に衝突し、流れが緩和
されると共にドラム３，３′の幅方向に分散する。
一方、注湯ノズル１は浸漬しており、溶鋼流によ
り注湯ノズル１とバツフル板５との間では溶鋼表
面に波立ちが起こる。しかしながら、ドラム３，
３′とバツフル板５との間の湯面は、溶鋼流の影
響が殆んど受けず、この部分の溶鋼表面は静かで
ある。 To explain the operation of the pouring device shown in FIG. 1, the molten steel flow supplied from the molten steel discharge port 6 on the side surface of the tip of the pouring nozzle 1 collides with the baffle plate 5, the flow is relaxed, and the drums 3, 3 ′ is distributed in the width direction.
On the other hand, the pouring nozzle 1 is immersed, and the molten steel flow causes ripples on the surface of the molten steel between the pouring nozzle 1 and the buff-full plate 5. However, drum 3,
The molten metal surface between 3' and the baffle plate 5 is hardly affected by the molten steel flow, and the molten steel surface in this portion is quiet.
以上本発明を詳細に説明したが、さらに本発明
の具体例をあげて、本発明をより詳細に説明す
る。 Although the present invention has been described above in detail, 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2000mm〓、ドラム幅1200mmの内部水冷構
造の鋼製ドラムを使用した。得られる鋳片の寸法
は３mm厚、1200mmの幅のものである。この時のド
ラムの回転速度は定常時で約32ｍ／minである。
一方、注湯ノズルとしてはセラミツクス製のもの
であり、鋳造前に予熱を施した。なお、注湯ノズ
ルの幅は1000mmとし、湯面下に80mm浸漬した。
The pouring device of the present invention was applied to a twin-drum continuous thin plate casting device. This continuous casting equipment used a steel drum with an internal water-cooled structure and a drum diameter of 2000 mm and a drum width of 1200 mm. The dimensions of the slab obtained are 3 mm thick and 1200 mm wide. The rotational speed of the drum at this time is approximately 32 m/min in steady state.
On the other hand, the pouring nozzle was made of ceramics and was preheated before casting. The width of the pouring nozzle was 1000 mm, and it was immersed 80 mm below the surface of the molten metal.
以上の諸条件下で鋳造したところ、表面性状の
良い鋳片が安定して連続的に鋳造できた。 When casting was carried out under the above conditions, slabs with good surface properties could be stably and continuously cast.
本発明は、以上詳記したように、先端側面に溶
鋼吐出口を設けた注湯ノズルおよびバツフル板を
夫々鋳型内の溶鋼中に浸漬したものであるから、
溶鋼の供給が移動鋳型の幅方向に均一かつ、静か
にできるので、メニスカスの乱れが無く、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 has a pouring nozzle having a molten steel discharge port on the side surface of its tip and a buttful plate each immersed in molten steel in a mold.
Since the molten steel can be supplied uniformly and quietly in the width direction of the movable mold, there is no disturbance of the meniscus and it is possible 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……バツフル板、
６……溶鋼吐出口。
FIG. 1 is a schematic diagram of a pouring device according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a conventional pouring device. 1... Pouring nozzle, 2... Meniscus, 3,
3'...Drum, 4...Slab, 5...Bullet plate,
6... Molten steel discharge port.
Claims (1)
該溶鋼を冷却して連続的に鋳片を鋳造する移動鋳
型式連続鋳造装置における注湯装置において、先
端側面に溶鋼吐出口を備えた注湯ノズルを、前記
吐出口を溶鋼中に浸漬して配置するとともに、該
注湯ノズルの側面と上記移動鋳型との間に下部を
溶鋼中に浸漬し、かつ、移動鋳型幅方向に延在す
るバツフル板を設けたことを特徴とする連続鋳造
装置における注湯装置。1 Supply molten steel into the moving mold from the pouring nozzle,
In a pouring device for a moving mold type continuous casting apparatus that cools the molten steel and continuously casts slabs, a pouring nozzle having a molten steel discharge port on a side surface of the tip is immersed in the molten steel. A continuous casting apparatus characterized in that a buttful plate is provided between the side surface of the pouring nozzle and the movable mold, the lower part of which is immersed in molten steel and which extends in the width direction of the movable mold. Pouring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP408085A JPS61165255A (en) | 1985-01-16 | 1985-01-16 | Pouring device in continuous casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP408085A JPS61165255A (en) | 1985-01-16 | 1985-01-16 | Pouring device in continuous casting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61165255A JPS61165255A (en) | 1986-07-25 |
| JPH0513024B2 true JPH0513024B2 (en) | 1993-02-19 |
Family
ID=11574811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP408085A Granted JPS61165255A (en) | 1985-01-16 | 1985-01-16 | Pouring device in continuous casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165255A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2575681B2 (en) * | 1987-01-16 | 1997-01-29 | 株式会社日立製作所 | Thin slab continuous casting machine |
| JPH0616925B2 (en) * | 1988-08-17 | 1994-03-09 | 新日本製鐵株式会社 | Nozzle for continuous casting of thin metal strip |
| WO2008012888A1 (en) * | 2006-07-27 | 2008-01-31 | Ihi Corporation | Twin roll casting machine |
-
1985
- 1985-01-16 JP JP408085A patent/JPS61165255A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61165255A (en) | 1986-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |