JPH04274851A - Continuous casting method and device - Google Patents
Continuous casting method and deviceInfo
- Publication number
- JPH04274851A JPH04274851A JP3270391A JP3270391A JPH04274851A JP H04274851 A JPH04274851 A JP H04274851A JP 3270391 A JP3270391 A JP 3270391A JP 3270391 A JP3270391 A JP 3270391A JP H04274851 A JPH04274851 A JP H04274851A
- Authority
- JP
- Japan
- Prior art keywords
- dummy
- dummy bar
- continuous casting
- bars
- mold
- 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 description 23
- 238000000034 method Methods 0.000 title claims description 9
- 238000005266 casting Methods 0.000 abstract description 23
- 239000002699 waste material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、ダミーバーをモールド
上方より装入する連続鋳造方法及び装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous casting method and apparatus in which a dummy bar is inserted into a mold from above.
【０００２】0002
【従来の技術】ダミーバーをモールド上方より挿入する
方式の連続鋳造装置は、鉄鋼便覧第３版第ＩＩ巻製銑・
製鋼の第 ６２６頁図１２・３５、又は特開昭５９−１
７８１５６号公報に示されるように公知である。この設
備においては単一のダミーバーを使って、鋳込開始、巻
上げ、次の異鋼種、異幅への切換時に再挿入して鋳込を
開始していくものであり、下部挿入式と比べ、ダミーバ
ー逆送時間を不要とするため生産性が向上する利点を生
じる。[Prior Art] Continuous casting equipment in which a dummy bar is inserted from above the mold is used in Iron and Steel Handbook, 3rd edition, Volume II.
Figures 12 and 35 on page 626 of Steel Manufacturing, or JP-A-1983-1
This is known as shown in Japanese Patent No. 78156. In this equipment, a single dummy bar is used to start casting, wind up, and reinsert to start casting when switching to the next different steel type or width.Compared to the bottom insertion type, There is an advantage that productivity is improved because there is no need for time for reverse feeding of the dummy bar.
【０００３】しかし、従来のダミーバーをモールド上方
より装入する連続鋳造機においては、１ストランドあた
りオンラインに１本のダミーバーしかないので、鍋１杯
分の溶湯のみを鋳造する単発鋳造の時にモールドからダ
ミーバー切離し位置までの距離が短く、かつ単位長さ当
たりの重量が大きい鋳片の際には、タンディッシュから
の鋳造が終了してもダミーバー切離しが行われていない
ために、次の鍋の鋳造のための準備ができない。しいて
は鋳造開始が遅れ、歴時間に対する鋳造時間が少なくな
り、生産量が少なくなる。However, in a conventional continuous casting machine in which a dummy bar is charged from above the mold, there is only one dummy bar online per strand, so when casting only one pot's worth of molten metal, there is no need to remove the dummy bar from the mold. When the distance to the dummy bar separation position is short and the weight per unit length is large, the dummy bar is not separated even after casting from the tundish is completed, so that the next pot cannot be cast. I can't prepare for it. As a result, the start of casting is delayed, the casting time becomes shorter than the calendar time, and the production amount decreases.
【０００４】0004
【発明が解決しようとする課題】本発明の目的は、上述
のような鋳造ができない無駄な時間の発生を防止するこ
とのできる連続鋳造方法及び装置を提案することである
。SUMMARY OF THE INVENTION An object of the present invention is to propose a continuous casting method and apparatus that can prevent the above-mentioned wasted time during which casting cannot be performed.
【０００５】[0005]
【課題を解決するための手段】本発明は、ダミーバーを
モールド上方より装入する連続鋳造方法において、１ス
トランドあたりオンラインに２本のダミーバーを設置し
、交互に装入することを特徴とする連続鋳造方法であり
、また、ダミーバーをモールド上方より装入する連続鋳
造装置において、１ストランドあたりオンラインに２本
のダミーバーを設置し、かつダミーバーの吊り上げウィ
ンチ下に待機中のダミーバーの落下を防止する支持装置
を設けたことを特徴とする連続鋳造装置である。吊り上
げウィンチ下に待機中のダミーバーの落下を防止する支
持装置としては、ダミーバーの幅方向或いは厚み方向に
穿たれた孔を貫通するシャフトと該シャフトを移動させ
るアクチュエータからなるものを用いることができる。
また、鋳型とダミーバー吊り上げウィンチ間に直列に２
台のダミーバーカーを配置し、ダミーバーカー上に常に
次のダミーバーを待機状態にしておくこともできる。[Means for Solving the Problems] The present invention provides a continuous casting method in which dummy bars are charged from above the mold, in which two dummy bars are installed online per strand and are charged alternately. This is a casting method, and in a continuous casting machine in which dummy bars are charged from above the mold, two dummy bars are installed online per strand, and a support is used to prevent the dummy bars from falling when they are waiting under a dummy bar lifting winch. This is a continuous casting device characterized by being equipped with a device. As a support device for preventing the dummy bar waiting under the lifting winch from falling, it is possible to use a support device consisting of a shaft that passes through a hole drilled in the width direction or thickness direction of the dummy bar and an actuator that moves the shaft. In addition, two parts are connected in series between the mold and the dummy bar lifting winch.
It is also possible to place a dummy barker on the dummy barker and keep the next dummy bar on standby at all times.
【０００６】[0006]
【作 用】本発明の連続鋳造装置の一実施例を図１に
示す。モールド２、ピンチロール３によって構成される
ダミーバー上方装入方式の連続鋳造装置１において、連
々鋳造や鋳造をしていない状態では１本のダミーバー７
はダミーバーカー４に積載され、もう１本のダミーバー
６はダミーバー巻き上げ装置５によって吊り下げられて
いる。ワイヤー等による吊り下げ状態では、ワイヤー切
れ等による落下などの安全上の観点から、本発明ではダ
ミーバーの落下を防止するダミーバー支持装置８を設け
ている。[Operation] An embodiment of the continuous casting apparatus of the present invention is shown in FIG. In a continuous casting device 1 of a dummy bar upward charging type that is composed of a mold 2 and a pinch roll 3, only one dummy bar 7 is used when continuous casting or not casting is performed.
is loaded on a dummy bar car 4, and another dummy bar 6 is suspended by a dummy bar hoisting device 5. When the dummy bar is suspended by a wire or the like, for safety reasons such as the possibility of the dummy bar falling due to wire breakage, the present invention provides a dummy bar support device 8 to prevent the dummy bar from falling.
【０００７】図２に本発明が有効に使われる単位長さ当
たりの重量が大きい鋳片９を鍋１杯分の溶湯のみを鋳造
する単発鋳造が終了した状態図を示す。モールド２での
鋳造が終了した鋳片９はピンチロール３で引き抜かれて
いくが、その時鋳片の単重が大きいと鋳片の長さが短く
なり、ボトム側にはダミーバーがついたままである。従
来のダミーバーが１本の場合にはモールド内に鋳片がな
く、次の鍋の鋳造のための準備、とくにダミーバーを装
入しようとしてもダミーバーが切り離れていないため装
入できない。しかし、本発明の場合２本目のダミーバー
で直ちに装入が可能である。FIG. 2 is a diagram illustrating a state in which the present invention is effectively used after single-shot casting is completed, in which only one ladle's worth of molten metal is cast from a slab 9 having a large weight per unit length. The slab 9 that has been cast in the mold 2 is pulled out by the pinch rolls 3, but at this time, if the unit weight of the slab is large, the length of the slab becomes short, and the dummy bar remains attached to the bottom side. . In the conventional case where there is only one dummy bar, there is no slab in the mold, and even if an attempt is made to prepare for casting the next pot, especially to insert a dummy bar, the dummy bar is not separated and cannot be inserted. However, in the case of the present invention, charging can be performed immediately with the second dummy bar.
【０００８】次に本発明のダミーバー支持装置８の一例
を図３に示す。支持装置８はダミーバーの重量を支持し
得る強度をもったシャフト１３とこのシャフト１３を移
動させるアクチュエータ１４からなる。ピン１０とリン
ク１１によって構成されるダミーバーにはその厚み方向
或いはその幅方向に保持装置のシャフトが貫通し得る孔
１２を設ける。これら装置によって２本のオンラインダ
ミーバーはダミーバーカー上とダミーバー支持装置によ
って吊り上げられた状態で安全に格納される。このよう
な吊り上げられた状態のダミーバー支持装置としては、
ダミーバー両サイドより機械的に把持する方式や、その
他種々の方式がとり得る。Next, an example of the dummy bar support device 8 of the present invention is shown in FIG. The support device 8 includes a shaft 13 having a strength capable of supporting the weight of the dummy bar, and an actuator 14 for moving the shaft 13. The dummy bar constituted by the pin 10 and the link 11 is provided with a hole 12 in its thickness direction or width direction through which the shaft of the holding device can pass. With these devices, the two online dummy bars are safely stored on the dummy barker and suspended by the dummy bar support device. As a dummy bar support device in such a suspended state,
A method of mechanically gripping the dummy bar from both sides, and various other methods can be used.
【０００９】図４に本発明の他の連続装置の実施例を示
す。この図ではダミーバーカーを２基有し、一方のダミ
ーバーカー４−１は装入用、他方のダミーバーカー４−
２は受取り用として用いている。図４（ａ）においてダ
ミーバー６は鋳型にダミーバーカー４−１よりまさに装
入されようとしており、一方ダミーバー７は吊り上げウ
ィンチ５よりダミーバーカー４−２に受取られようとし
ている。ダミーバー６を装入後は、（ｂ）に示すように
ダミーバー７がダミーバーカー４−２上に受け入れられ
ている。そして連続鋳造している間に、（ｃ）に示すよ
うにダミーバーカー４−１側或いはダミーバーカー４−
２側いずれかが片側のダミーバーカーに近接して、両者
の無限軌道を駆動してダミーバーカー４−２から４−１
にダミーバーを引渡し、（ｄ）に示す状態で次回の鋳造
まで待機させておく。FIG. 4 shows an embodiment of another continuous device of the present invention. In this figure, there are two dummy barkers; one dummy barker 4-1 is for charging, and the other dummy barker 4-1 is for charging.
2 is used for receiving. In FIG. 4(a), the dummy bar 6 is about to be loaded into the mold from the dummy barker 4-1, while the dummy bar 7 is about to be received by the dummy barker 4-2 from the lifting winch 5. After the dummy bar 6 is inserted, the dummy bar 7 is received on the dummy barker 4-2 as shown in (b). During continuous casting, as shown in (c), the dummy barker 4-1 side or the dummy barker 4-
Either of the two sides approaches the dummy barker on one side and drives the endless tracks of both to move the dummy barkers 4-2 to 4-1.
The dummy bar is delivered to the customer and left in the state shown in (d) on standby until the next casting.
【００１０】次に具体的実施例に基づいて本発明をより
詳細に説明する。Next, the present invention will be explained in more detail based on specific examples.
【００１１】[0011]
【実施例】機長４５ｍ、モールドからダミーバー切り離
し位置までの距離が５０ｍ、オンラインダミーバーが１
本の２ストランドのダミーバー上方装入式のスラブ連鋳
機において、鍋容量 ３００ｔの溶鋼を ２６０ｍｍ厚
み×２０００ｍｍ幅の鋳片を鋳造速度 １．９ｍ／ｍｉ
ｎ で単発鋳造した際には、モールドで鋳造が終了した
時ダミーバーのヘッドの位置はモールドから３７ｍの位
置にあり、モールドでは次の鋳造準備が可能にもかかわ
らず、ダミーバー切離しまでの所要時間７分と、切離し
からダミーバーを巻き上げてダミーバーカーに載せ、モ
ールドへ装入するまでの所要時間１０分とを合わせた１
７分が無駄時間として発生していた。[Example] Machine length: 45m, distance from mold to dummy bar separation position: 50m, online dummy bar: 1
In this two-strand dummy bar top-charging slab continuous caster, a ladle capacity of 300 tons of molten steel was cast into slabs with a thickness of 260 mm and a width of 2000 mm at a speed of 1.9 m/mi.
When performing single-shot casting with n, the head of the dummy bar was located 37 m from the mold when casting was completed, and although the mold was ready for the next casting, the time required to separate the dummy bar was 7. 1 minute plus the 10 minutes required from cutting it off to winding up the dummy bar, placing it on the dummy bar car, and charging it into the mold.
Seven minutes occurred as wasted time.
【００１２】同じ連鋳機において、本発明の鋳造方法で
あるダミーバー２本をオンラインに持ち、ダミーバー保
持装置を設置することにより、先の鋳造状態においても
鋳造終了後もう一方のダミーバーを装入することに無駄
時間１７分をなくすことができた。以上のような鋳造が
２０回／月にあったが、本発明を採用することによって
約５０００ｔ／月の増産が可能となった。In the same continuous casting machine, by having two dummy bars online according to the casting method of the present invention and installing a dummy bar holding device, the other dummy bar can be inserted after the completion of casting even in the previous casting state. In particular, I was able to eliminate 17 minutes of wasted time. The above-mentioned casting was performed 20 times a month, but by adopting the present invention, it became possible to increase production by about 5000 tons/month.
【００１３】[0013]
【発明の効果】本発明は、ダミーバーをモールド上方よ
り装入する方式の連続鋳造機において、２本のオンライ
ンダミーバーを持つことで、鋳造終了から鋳造準備開始
までの無駄時間を省略できるようになった。その結果生
産量を大きくすることができるようになった。[Effects of the Invention] The present invention has two online dummy bars in a continuous casting machine that charges dummy bars from above the mold, thereby making it possible to eliminate wasted time from the end of casting to the start of casting preparation. Ta. As a result, it became possible to increase production volume.
【図１】本発明を採用したダミーバー上方連続鋳造装置
の側面図である。FIG. 1 is a side view of a dummy bar upward continuous casting apparatus employing the present invention.
【図２】本発明の２本ダミーバーを使用している時の連
続鋳造装置の側面図である。FIG. 2 is a side view of the continuous casting apparatus when using the two dummy bars of the present invention.
【図３】本発明のダミーバー支持装置の説明図である。FIG. 3 is an explanatory diagram of the dummy bar support device of the present invention.
【図４】本発明装置の他の実施例を示す説明図である。FIG. 4 is an explanatory diagram showing another embodiment of the device of the present invention.
１ ダミーバー上方装入式連続鋳造機２ モールド ３ ピンチロール ４ ダミーバーカー ５ ダミーバー巻き上げ装置 ６ ダミーバーＡ ７ ダミーバーＢ ８ ダミーバー保持装置 ９ 鋳片 １０ ダミーバーピン １１ ダミーバーリンク １２ 保持装置シャフト装入孔 １３ 保持装置シャフト １４ 保持装置アクチュエータ 1 Dummy bar top-loading continuous casting machine 2 Mold 3 Pinch roll 4 Dummy barker 5 Dummy bar hoisting device 6 Dummy bar A 7 Dummy bar B 8 Dummy bar holding device 9 Slab 10 Dummy bar pin 11 Dummy bar link 12 Holding device shaft insertion hole 13 Holding device shaft 14 Holding device actuator
Claims (4)
る連続鋳造方法において、１ストランドあたりオンライ
ンに２本のダミーバーを設置し、交互に装入することを
特徴とする連続鋳造方法。1. A continuous casting method in which dummy bars are charged from above the mold, characterized in that two dummy bars are installed online per strand and are charged alternately.
る連続鋳造装置において、１ストランドあたりオンライ
ンに２本のダミーバーを設置し、かつダミーバーの吊り
上げウィンチ下に待機中のダミーバーの落下を防止する
支持装置を設けたことを特徴とする連続鋳造装置。Claim 2: In a continuous casting device in which dummy bars are charged from above the mold, two dummy bars are installed online per strand, and a support device is provided below the dummy bar lifting winch to prevent the waiting dummy bars from falling. A continuous casting device characterized by:
は厚み方向に穿たれた孔を貫通するシャフトと該シャフ
トを移動させるアクチュエータからなることを特徴とす
る請求項２記載の連続鋳造装置。3. The continuous casting apparatus according to claim 2, wherein the support device comprises a shaft passing through a hole bored in the width direction or thickness direction of the dummy bar, and an actuator for moving the shaft.
る連続鋳造装置において、１ストランドあたりオンライ
ンに２本のダミーバーを設置し、かつ鋳型とダミーバー
吊り上げウィンチ間に直列に２台のダミーバーカーを配
置したことを特徴とする連続鋳造装置。Claim 4: In a continuous casting device in which dummy bars are charged from above the mold, two dummy bars are installed online per strand, and two dummy barkers are arranged in series between the mold and a dummy bar lifting winch. Continuous casting equipment featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3270391A JPH04274851A (en) | 1991-02-27 | 1991-02-27 | Continuous casting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3270391A JPH04274851A (en) | 1991-02-27 | 1991-02-27 | Continuous casting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04274851A true JPH04274851A (en) | 1992-09-30 |
Family
ID=12366212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3270391A Pending JPH04274851A (en) | 1991-02-27 | 1991-02-27 | Continuous casting method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04274851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101016447B1 (en) * | 2003-06-09 | 2011-02-21 | 주식회사 포스코 | device for prevention of falling of dummy bar |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107753A (en) * | 1982-12-09 | 1984-06-22 | Nippon Steel Corp | Continuous casting method and dummy bar housing device |
-
1991
- 1991-02-27 JP JP3270391A patent/JPH04274851A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107753A (en) * | 1982-12-09 | 1984-06-22 | Nippon Steel Corp | Continuous casting method and dummy bar housing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101016447B1 (en) * | 2003-06-09 | 2011-02-21 | 주식회사 포스코 | device for prevention of falling of dummy bar |
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