JPH07106435B2 - Twin roll type continuous casting machine - Google Patents
Twin roll type continuous casting machineInfo
- Publication number
- JPH07106435B2 JPH07106435B2 JP8257791A JP8257791A JPH07106435B2 JP H07106435 B2 JPH07106435 B2 JP H07106435B2 JP 8257791 A JP8257791 A JP 8257791A JP 8257791 A JP8257791 A JP 8257791A JP H07106435 B2 JPH07106435 B2 JP H07106435B2
- Authority
- JP
- Japan
- Prior art keywords
- pinch roll
- plate thickness
- roll
- thickness measuring
- twin
- 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 - Fee Related
Links
Landscapes
- Continuous Casting (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は双ロール式連続鋳造装置
による薄板鋳片の製造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of thin plate cast pieces by a twin roll type continuous casting apparatus.
【０００２】[0002]
【従来の技術】図３は特開昭６１−２１９４４８号公報
に記載の薄板連続鋳造装置である。矢印５方向に回転す
る双ロール１−１と１−２および側堰６とで形成された
湯溜り２に注入された溶湯は、双ロール１−１と１−２
上で凝固シェルを形成し、凝固シェルは薄板鋳片３とな
ってピンチロール４によって取り出される。図中７は鋳
片支持ロール群、８はブラシロール、９は圧延機、１０
は捲取機である。2. Description of the Related Art FIG. 3 shows a thin plate continuous casting apparatus described in JP-A-61-219448. The molten metal injected into the pool 2 formed by the twin rolls 1-1 and 1-2 and the side weir 6 rotating in the direction of the arrow 5 is twin rolls 1-1 and 1-2.
A solidified shell is formed on the upper side, and the solidified shell becomes a thin plate cast piece 3 and is taken out by a pinch roll 4. In the figure, 7 is a slab support roll group, 8 is a brush roll, 9 is a rolling mill, and 10
Is a winding machine.
【０００３】この公報には記載されていないが、双ロー
ル式連続鋳造の鋳造開始に際しては、湯溜り２から捲取
機１０に至る薄板鋳片３の走路に沿って予めダミーシー
トを配する。湯溜り２に溶湯を注入し、ダミーシートの
端部に溶湯を凝固させて固着し、その後双ロール１−
１，１−２やピンチロール４や捲取機１０を回動して、
ダミーシートを捲取機で巻取る。薄板鋳片３はダミーシ
ートに案内されて、双ロール１−１，１−２からピンチ
ロール４、鋳片支持ロール７、ブラシロール８、圧延機
９を経由して捲取機１０に達する。Although not described in this publication, at the start of casting of twin roll type continuous casting, a dummy sheet is arranged in advance along the running path of the thin plate cast piece 3 from the pool 2 to the winder 10. The molten metal is poured into the pool 2 and the molten metal is solidified and fixed to the end of the dummy sheet, and then the twin roll 1-
Rotate 1, 1-2, pinch roll 4 and winding machine 10,
Take up the dummy sheet with a winder. The thin sheet slab 3 is guided by the dummy sheet and reaches the winding machine 10 from the twin rolls 1-1 and 1-2 via the pinch roll 4, the slab supporting roll 7, the brush roll 8 and the rolling mill 9.
【０００４】図４は、ダミーシートと帯状鋳片との連結
部の連結厚肉部の形成の説明図である。(Ａ)は鋳造開始
前の状態で、ダミーシート１１の端部は、間隙がｔ1ｍ
ｍに設定された双ロール１−１と１−２の間に挟まれて
いる。(Ｂ)は双ロール１−１と１−２を矢印５方向に回
転させる直前の状態で、ダミーシート１１の端部には厚
さがｔ2ｍｍの厚肉凝固物が固着している。(Ｃ)は双ロ
ール１−１と１−２を回転させた直後の状態で、厚さｔ
2ｍｍの厚肉凝固物を通過させるために、双ロール１−
１と１−２は間隙をｔ2ｍｍとする。双ロールから送り
出された厚肉凝固物は連結厚肉部１４となる。(Ｄ)は定
常状態で、双ロール１−１と１−２の間隙をｔ3ｍｍと
する。この際、１−１上に形成した凝固シェル１２−１
と１−２上に形成した凝固シェル１２−２とが双ロール
１−１と１−２との最小間隙部１３で一体化するよう
に、双ロール１−１と１−２の回転速度を調整する。FIG. 4 is an explanatory view of the formation of a connection thick portion of a connection portion between the dummy sheet and the strip-shaped cast piece. (A) is a state before the start of casting, and a gap is t 1 m at the end of the dummy sheet 11.
It is sandwiched between twin rolls 1-1 and 1-2 set to m. (B) is a state immediately before the twin rolls 1-1 and 1-2 are rotated in the direction of arrow 5, in which a thick solidified product having a thickness of t 2 mm is fixed to the end of the dummy sheet 11. (C) is a state immediately after rotating the twin rolls 1-1 and 1-2, and has a thickness t.
Twin rolls 1- to pass 2 mm thick coagulum
The gap between 1 and 1-2 is t 2 mm. The thick-walled solidified product sent from the twin rolls becomes the connected thick-walled portion 14. (D) is a steady state, and the gap between the twin rolls 1-1 and 1-2 is t 3 mm. At this time, the solidified shell 12-1 formed on the 1-1
And the solidified shell 12-2 formed on 1-2 are integrated at the minimum gap portion 13 between the twin rolls 1-1 and 1-2 so that the rotational speeds of the twin rolls 1-1 and 1-2 are adjusted. adjust.
【０００５】双ロールから送り出された連結厚肉部は、
図３でピンチロール４を通過する。この際ピンチロール
の締めつけ力が強いと、連結厚肉部が通過できないで、
帯状鋳片は双ロールとピンチロールの間で折れて破断す
る。また連結厚肉部を通過させるために、ピンチロール
の締めつけ力を長い時間軽減すると、鋳造直後の鋳片の
部分にダミーシートの自重がかゝり、この自重に耐える
ことができなくなって、帯状鋳片は図４(Ｄ)の最小間隙
部１３で破断したり、双ロールとピンチロールの間でた
るみや折れ曲がりを生じ、円滑な鋳片の搬送が妨げられ
る。The thick connecting portion sent from the twin rolls is
It passes through the pinch roll 4 in FIG. At this time, if the tightening force of the pinch roll is strong, the connecting thick part cannot pass,
The strip slab breaks and breaks between twin rolls and pinch rolls. In addition, if the tightening force of the pinch roll is reduced for a long time in order to pass through the thick connection part, the weight of the dummy sheet will be applied to the slab immediately after casting, and the weight of the dummy sheet will not be able to withstand this weight. The slab breaks at the minimum gap portion 13 in FIG. 4 (D), and slack and bending occur between the twin rolls and the pinch rolls, which hinders the smooth transportation of the slab.
【０００６】[0006]
【発明が解決しようとする課題】双ロール式連続鋳造に
おいては、連結厚肉部がピンチロールを通過する瞬間は
ピンチロールの締めつけ力を軽減して連結厚肉部を通過
させ、その前後は十分な締めつけ力で帯状鋳片を保持す
ることが望まれるが、双ロール式連続鋳造は例えば１０
０ｍ／分の高速度で帯状鋳片を走行させるため、ピンチ
ロールの締めつけ力を調整するタイミングが難しかっ
た。In twin roll type continuous casting, at the moment when the thick connecting portion passes through the pinch roll, the tightening force of the pinch roll is reduced to allow the thick connecting portion to pass through the thick connecting portion. Although it is desired to hold the strip-shaped slab with a sufficient tightening force, twin roll continuous casting is, for example, 10
Since the strip slab is run at a high speed of 0 m / min, it is difficult to adjust the tightening force of the pinch roll.
【０００７】本発明は、連結厚肉部がピンチロールを円
滑に通過する事が可能であり、かつ連結厚肉部がピンチ
ロールを通過する際にも、帯状鋳片の円滑な支持が確保
されて帯状鋳片を破断させることがない、双ロール式連
続鋳造装置の提供を課題としている。According to the present invention, the thick connecting portion can smoothly pass through the pinch roll, and the smooth support of the strip-shaped slab is ensured even when the thick connecting portion passes through the pinch roll. It is an object of the present invention to provide a twin roll type continuous casting device that does not break the strip-shaped cast piece.
【０００８】[0008]
【課題を解決するための手段および作用】図１は本発明
の装置の例の説明図である。ダミーシート１５は連結厚
肉部１４で帯状鋳片３と連結され、ピンチロール４０に
よって引張られて、Ｖｍ／分の速度で帯状鋳片３を案内
して走行させる。１７は板厚測定器でピンチロール４０
よりもＬｍ前面に配されている。連結厚肉部１４が板厚
測定器１７の直下に達すると、板厚測定器１７は板厚が
厚過ぎる事を検知し、信号をピンチロール制御器１８に
送る。ピンチロール制御器はこの信号を受けて、連結厚
肉部１４が板厚測定器１７の直下を通過してからＬ／Ｖ
分経過して、ピンチロール４０の締めつけ力を軽減す
る。Ｌ／Ｖ分経過すると、連結厚肉部１４は正確にピン
チロール４０に到達するが、ピンチロール４０の締めつ
け力が軽減されているために、ピンチロール４０を支障
なく通過することができる。Ｌ／Ｖ分の直前や直後にお
いては、ピンチロール４０は十分な力でダミーシート１
５や帯状鋳片３を把持している。このため、Ｌ／Ｖ分経
過した時に、瞬間的にピンチロールの締めつけ力を軽減
しても、帯状鋳片の円滑な支持は確保される。FIG. 1 is an explanatory view of an example of the device of the present invention. The dummy sheet 15 is connected to the strip-shaped slab 3 by the connecting thick portion 14, is pulled by the pinch roll 40, and guides the strip-shaped slab 3 to run at a speed of Vm / min. 17 is a plate thickness measuring device, and a pinch roll 40
Is arranged in front of Lm. When the connecting thick portion 14 reaches directly below the plate thickness measuring device 17, the plate thickness measuring device 17 detects that the plate thickness is too thick, and sends a signal to the pinch roll controller 18. In response to this signal, the pinch roll controller receives L / V after the connecting thick portion 14 passes directly below the plate thickness measuring instrument 17.
After a lapse of minutes, the tightening force of the pinch roll 40 is reduced. After the passage of L / V, the thick connecting portion 14 accurately reaches the pinch roll 40, but since the tightening force of the pinch roll 40 is reduced, it can pass through the pinch roll 40 without any trouble. Immediately before and immediately after the L / V portion, the pinch roll 40 has a sufficient force for the dummy sheet 1
5 and the strip-shaped cast piece 3 are held. Therefore, even when the tightening force of the pinch roll is momentarily reduced when L / V has elapsed, the smooth support of the strip-shaped slab is ensured.
【０００９】図１では、双ロール１−１，１−２から送
り出されたダミーシートや帯状鋳片を、滑りガイド１６
で支承し、滑りガイド１６上を上方から斜め下方に滑ら
せて走行させる例を述べたが、本発明の構成は、図３の
ピンチロール４に同様に適用でき、かつ同じ効果を奏す
る事は上記の説明から明らかである。In FIG. 1, the dummy sheet and the strip-shaped slab sent out from the twin rolls 1-1 and 1-2 are attached to the sliding guide 16
In the above description, an example in which the sliding guide 16 is slid obliquely downward from above and traveling is described, but the configuration of the present invention can be similarly applied to the pinch roll 4 of FIG. 3 and the same effect can be obtained. It will be apparent from the above description.
【００１０】図２は、本発明の装置の他の例の説明図で
ある。この装置は、同じ周速度Ｖｍ／分で回動する２ヶ
のピンチロール４０−１と４０−２を有している。４０
−１は板厚測定器１７からＬ1ｍ後面に、また４０−２
は板厚測定器１７からＬ2ｍ後面に設けられている。こ
の際はピンチロール制御器１８は、板厚測定器１７から
の信号を受けて、連結厚肉部１４が板厚測定器１７の直
下を通過してからＬ1／Ｖ分してピンチロール４０−１
の締めつけ力を短時間軽減し、かつＬ2／Ｖ分してピン
チロール４０−２の締めつけ力を短時間軽減する。連結
厚肉部１４が４０−１および４０−２を通過した後は、
４０−１あるいは４０−２の何れか一方を解放して操業
を継続しても支障はない。FIG. 2 is an explanatory view of another example of the apparatus of the present invention. This device has two pinch rolls 40-1 and 40-2 that rotate at the same peripheral speed Vm / min. 40
-1 is from the plate thickness measuring device 17 to the rear surface of L 1 m,
Is provided on the rear surface of L 2 m from the plate thickness measuring device 17. At this time, the pinch roll controller 18 receives a signal from the plate thickness measuring device 17, and after the connection thick portion 14 passes directly below the plate thickness measuring device 17, the pinch roll 40 is divided by L 1 / V. -1
Of the clamping force reduces short, and L 2 / V min to reduce short time clamping force of the pinch rolls 40-2. After the connecting thick portion 14 passes through 40-1 and 40-2,
There is no problem even if either 40-1 or 40-2 is released to continue the operation.
【００１１】この装置を用いると、ピンチロール４０−
１の締めつけ力を軽減した際はピンチロール４０−２
が、またピンチロール４０−２の締めつけ力を軽減した
際はピンチロール４０−１が帯状鋳片３やダミーシート
１５を十分な締めつけ力で把持している。このため、連
結厚肉部１４がピンチロールを通過する間も、帯状鋳片
の円滑な支持が確保される。Using this device, the pinch roll 40-
When the tightening force of 1 is reduced, pinch roll 40-2
However, when the tightening force of the pinch roll 40-2 is reduced, the pinch roll 40-1 holds the strip-shaped cast piece 3 and the dummy sheet 15 with a sufficient tightening force. Therefore, smooth support of the strip-shaped slab is ensured even while the connecting thick portion 14 passes through the pinch roll.
【００１２】本発明を連結厚肉部がピンチロールを通過
する際にピンチロールの締めつけ力を軽減する例につい
て説明したが、本発明の装置を用いると、連結厚肉部が
ピンチロールを通過する際に、ピンチロールの隙間を連
結厚肉部の厚さより大きく開いて連結厚肉部を全く加圧
しないようにしても、同じ作用、効果が得られる。従っ
て本明細書における、ピンチロールの締めつけ力の軽減
には、連結厚肉部を全く加圧しない場合が含まれる。While the present invention has been described with reference to an example in which the tightening force of the pinch roll is reduced when the connecting thick portion passes through the pinch roll, the connecting thick portion passes through the pinch roll when the device of the present invention is used. At this time, even if the gap between the pinch rolls is opened larger than the thickness of the connecting thick portion so that the connecting thick portion is not pressed at all, the same action and effect can be obtained. Therefore, in the present specification, the reduction of the pinch roll tightening force includes the case where no pressure is applied to the connection thick portion.
【００１３】[0013]
【発明の効果】本発明の装置を用いると、連結厚肉部は
円滑にピンチロールを通過し、かつ連結厚肉部がピンチ
ロールを通過する際も、帯状鋳片は円滑に支持し搬送さ
れる。When the apparatus of the present invention is used, the connecting thick portion smoothly passes through the pinch roll, and even when the connecting thick portion passes through the pinch roll, the strip-shaped slab is smoothly supported and conveyed. It
図１は本発明の装置の例の説明図、図２は本発明の他の
装置の例の説明図、図３は公知の薄板連続鋳造装置の例
の説明図、図４は連結厚肉部の形成の説明図、である。FIG. 1 is an explanatory view of an example of an apparatus of the present invention, FIG. 2 is an explanatory view of an example of another apparatus of the present invention, FIG. 3 is an explanatory view of an example of a known thin plate continuous casting apparatus, and FIG. 4 is a connection thick portion. It is an explanatory view of formation of.
１−１（１−２）：双ロール、 ２：湯溜り、 ３：薄
板鋳片、 ４：ピンチロール、 ５：双ロールの回転方
向、 ６：側堰、 ７：鋳片支持ロール、８：ブラシロ
ール、 ９：圧延機、 １０：捲取機、 １１：ダミー
シート、１２−１（１２−２）：凝固シェル、 １３：
最小間隙部、 １４：連結厚肉部、 １５：ダミーシー
ト、 １６：滑りガイド、 １７：板厚測定器、 １
８：ピンチロール制御器、 ４０（４０−１，４０−
２）：ピンチロール。1-1 (1-2): Twin roll, 2: Hot water pool, 3: Thin plate slab, 4: Pinch roll, 5: Twin roll rotation direction, 6: Side dam, 7: Slab support roll, 8: Brush roll, 9: rolling machine, 10: winding machine, 11: dummy sheet, 12-1 (12-2): solidified shell, 13:
Minimum gap part, 14: Connection thick part, 15: Dummy sheet, 16: Sliding guide, 17: Plate thickness measuring instrument, 1
8: Pinch roll controller, 40 (40-1, 40-
2): Pinch roll.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 溝口 利明 千葉県富津市新富20−１ 新日本製鐵株式 会社中央研究本部内 (72)発明者 蔵谷 秀也 福岡県北九州市八幡東区枝光１−１−１ 新日本製鐵株式会社設備技術本部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiaki Mizoguchi 20-1 Shintomi, Futtsu City, Chiba Prefecture Nippon Steel Co., Ltd. Central Research Division (72) Inventor Hideya Kuratani 1-Emitsu Edami, Hachimanto-ku, Kitakyushu, Fukuoka 1-1 Inside Nippon Steel Co., Ltd.
Claims (2)
を検知する板厚測定器と、該板厚測定器からの信号に基
づき該連結厚肉部がピンチロールを通過する間締めつけ
力を軽減するようにピンチロールを制御するピンチロー
ル制御器と、該板厚測定器の後面に設けた該ピンチロー
ルとを有することを特徴とする、双ロール式連続鋳造装
置。1. A plate thickness measuring device for detecting a connecting thickness part between a dummy sheet and a strip-shaped cast piece, and a tightening force based on a signal from the plate thickness measuring device while the connecting thick part passes through a pinch roll. A twin roll type continuous casting apparatus comprising: a pinch roll controller for controlling a pinch roll so as to reduce the above-mentioned problem, and the pinch roll provided on the rear surface of the plate thickness measuring instrument.
を検知する板厚測定器と、該板厚測定器からの信号に基
づき該連結厚肉部が第１ピンチロールを通過する間第１
ピンチロールの締めつけ力を軽減するように第１ピンチ
ロールを制御しかつ該連結厚肉部が第２ピンチロールを
通過する間第２ピンチロールの締めつけ力を軽減するよ
うに第２ピンチロールを制御するピンチロール制御器
と、該板厚測定器の後面に設けた該第１ピンチロールお
よび第２ピンチロールとを有することを特徴とする、双
ロール式連続鋳造装置。2. A plate thickness measuring device for detecting a connecting thick part between a dummy sheet and a strip-shaped slab, and a period during which the connecting thick part passes through a first pinch roll based on a signal from the plate thickness measuring device. First
Controlling the first pinch roll to reduce the tightening force of the pinch roll and controlling the second pinch roll to reduce the tightening force of the second pinch roll while the connecting thick portion passes through the second pinch roll. A twin-roll type continuous casting apparatus, comprising: a pinch roll controller for controlling the plate thickness; and a first pinch roll and a second pinch roll provided on the rear surface of the plate thickness measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8257791A JPH07106435B2 (en) | 1991-04-15 | 1991-04-15 | Twin roll type continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8257791A JPH07106435B2 (en) | 1991-04-15 | 1991-04-15 | Twin roll type continuous casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04319045A JPH04319045A (en) | 1992-11-10 |
| JPH07106435B2 true JPH07106435B2 (en) | 1995-11-15 |
Family
ID=13778342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8257791A Expired - Fee Related JPH07106435B2 (en) | 1991-04-15 | 1991-04-15 | Twin roll type continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07106435B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8877589B2 (en) | 2005-08-30 | 2014-11-04 | Micron Technology, Inc. | Methods of forming field effect transistors on substrates |
| US8916912B2 (en) | 2005-07-08 | 2014-12-23 | Micron Technology, Inc. | Semiconductor device comprising a transistor gate having multiple vertically oriented sidewalls |
| US9129847B2 (en) | 2006-07-17 | 2015-09-08 | Micron Technology, Inc. | Transistor structures and integrated circuitry comprising an array of transistor structures |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6943159B2 (en) * | 2017-11-28 | 2021-09-29 | 日本製鉄株式会社 | Double drum type continuous casting equipment, manufacturing method of thin-walled slabs |
| JP7256370B2 (en) * | 2019-02-08 | 2023-04-12 | 日本製鉄株式会社 | Double-drum continuous casting apparatus and double-drum continuous casting method |
-
1991
- 1991-04-15 JP JP8257791A patent/JPH07106435B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8916912B2 (en) | 2005-07-08 | 2014-12-23 | Micron Technology, Inc. | Semiconductor device comprising a transistor gate having multiple vertically oriented sidewalls |
| US9536971B2 (en) | 2005-07-08 | 2017-01-03 | Micron Technology, Inc. | Semiconductor device comprising a transistor gate having multiple vertically oriented sidewalls |
| US8877589B2 (en) | 2005-08-30 | 2014-11-04 | Micron Technology, Inc. | Methods of forming field effect transistors on substrates |
| US9129847B2 (en) | 2006-07-17 | 2015-09-08 | Micron Technology, Inc. | Transistor structures and integrated circuitry comprising an array of transistor structures |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04319045A (en) | 1992-11-10 |
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