JP2000042692A - Twin-drum type continuous casting method and device - Google Patents

Twin-drum type continuous casting method and device

Info

Publication number
JP2000042692A
JP2000042692A JP21136598A JP21136598A JP2000042692A JP 2000042692 A JP2000042692 A JP 2000042692A JP 21136598 A JP21136598 A JP 21136598A JP 21136598 A JP21136598 A JP 21136598A JP 2000042692 A JP2000042692 A JP 2000042692A
Authority
JP
Japan
Prior art keywords
drum
twin
continuous casting
cooling
gap
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
Application number
JP21136598A
Other languages
Japanese (ja)
Inventor
Takashi Arai
貴士 新井
Masafumi Miyazaki
雅文 宮嵜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP21136598A priority Critical patent/JP2000042692A/en
Publication of JP2000042692A publication Critical patent/JP2000042692A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous Casting (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent breakage of a cast slab caused by a defective seal or defects in shape at both end part of the cast slab by repeating a reciprocation of a side gate with specified stroke and speed within a contact surface with a drum end face. SOLUTION: Three pressing devices 4 to press a side gate 2 against an end face of a cooling drum 1 are mounted on a back side of the side gate, and driven by bydraulic cylinders. The pressing devices 4 are mounted on a movable frame 5, and the movable frame 5 is movable along a guide rail 6. The side gate 2 is reciprocated in the A-A direction by the drive of a reciprocation device 7 provided on one side surface of the movable frame 5. The stroke in the horizontal direction is >5 mm, and the speed is <=100 μm/second. As a result, a drum clearance part of the side gate 2 is worn, and this part is approximately flat. Thus, the drum clearance part is prevented from entering the drum clearance, breaking a solidified shell, or impeding the shell formation.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、双ドラム式連続鋳
造による薄鋳片の製造において、冷却ドラムとサイド堰
の間のシール性を改善することにより、シール不良によ
る鋳片切れや鋳片両端部の形状不良などを防止する方法
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 the production of thin slabs by twin-drum continuous casting. The present invention relates to a method and an apparatus for preventing a defective shape of a part.

【0002】[0002]

【従来の技術】双ドラム式連続鋳装置を用いた薄鋳片の
連続鋳造においては、図1に示すように、回転する一対
の冷却ドラム1,1と、ドラム両端面に押し付けられた
一対のサイド堰2,2とによって形成された湯溜まり部
3に金属溶湯eを連続的に供給し、湯溜まり部3の溶湯
eを冷却ドラムによって冷却してドラム周面に凝固シェ
ルを形成し、この凝固シェルを冷却ドラムの最接近部に
おいて圧着、一体化して薄鋳片cを得るようになってい
る。
2. Description of the Related Art In continuous casting of thin slabs using a twin-drum continuous casting apparatus, as shown in FIG. 1, a pair of rotating cooling drums 1, 1 and a pair of cooling drums pressed against both end surfaces of the drum. The molten metal e is continuously supplied to the pool 3 formed by the side weirs 2 and 2, and the molten metal e in the pool 3 is cooled by a cooling drum to form a solidified shell on the drum peripheral surface. The solidified shell is pressed and integrated at the closest part of the cooling drum to obtain a thin cast piece c.

【0003】双ドラム式連続鋳造においては、湯溜まり
部の溶湯が外部に洩れ出ないように、冷却ドラム両端面
と一対のサイド堰との間で十分なシール機能を持たせる
ことが重要であるが、実際の鋳造では溶湯漏れが発生す
る場合がある。溶湯漏れが発生した場合は、鋳片両端部
に鋳バリが発生して形状を損なう他に、搬送中で蛇行が
発生し鋳片搬送ライン及び鋳片搬送ラインに設けられた
圧延機等の損傷を招き、また鋳片巻形状の乱れを招く。
溶湯漏れが激しい場合は、その状態が続いて鋳片切れが
発生し、鋳造の続行が不可能となる。
In the twin-drum continuous casting, it is important to provide a sufficient sealing function between both ends of the cooling drum and a pair of side weirs so that the molten metal in the pool does not leak outside. However, in actual casting, molten metal leakage may occur. When molten metal leaks, cast burrs are generated at both ends of the slab to damage the shape, and meandering occurs during transport, causing damage to the slab transport line and rolling mills provided on the slab transport line. And the slab winding shape is disturbed.
If the molten metal leaks severely, the state continues, and the slab breaks, making it impossible to continue casting.

【0004】従来、溶湯漏れが発生する原因の一つとし
て、サイド堰の熱変形があげられており、その対策とし
て、熱変形が発生し易い鋳造初期においてサイド堰の押
付力を大きくする方法が、例えば特開平5−16194
4号公報や特開平6−335752号公報によって知ら
れている。しかし、これらの方法のみでは溶湯漏れを十
分に防止できない。
Conventionally, one of the causes of molten metal leakage is caused by thermal deformation of the side weir. As a countermeasure, a method of increasing the pressing force of the side weir in the early stage of casting where thermal deformation is likely to occur. For example, Japanese Patent Application Laid-Open No. 5-16194
4 and Japanese Patent Application Laid-Open No. 6-333552. However, these methods alone cannot sufficiently prevent molten metal leakage.

【0005】[0005]

【発明が解決しようとする課題】本発明は、双ドラム式
連続鋳造において、冷却ドラムとサイド堰の間のシール
性を改善することにより、シール不良による鋳片切れや
鋳片両端部の形状不良などを防止することを課題とす
る。
DISCLOSURE OF THE INVENTION The present invention relates to a twin-drum continuous casting method, which improves the sealing performance between a cooling drum and a side weir, thereby improving the sealing performance due to poor sealing and poor shape at both ends of the slab. It is an object to prevent such problems.

【0006】[0006]

【課題を解決するための手段】図2に示すように、冷却
ドラム1の端面にサイド堰2を押し付けると、サイド堰
2のドラム端面との摺動面には磨耗溝2aが形成される
が、ドラム間隙部2bは磨耗が小さい。そのため、ドラ
ム間隙部2bはドラム間隙の溶湯eに侵入して凝固シェ
ルsを破壊したりシェル形成を妨害する。そのため、凝
固シェルsの端部が薄くなってドラム最接近部における
凝固シェル同士の圧着不良により溶湯洩れが生じる。
As shown in FIG. 2, when the side weir 2 is pressed against the end surface of the cooling drum 1, a wear groove 2a is formed on the sliding surface of the side weir 2 with the drum end surface. The drum gap 2b is less worn. For this reason, the drum gap 2b penetrates into the molten metal e in the drum gap to break the solidified shell s or hinder the formation of the shell. For this reason, the end of the solidified shell s becomes thin, and the molten metal leaks due to poor pressure contact between the solidified shells at the closest part of the drum.

【0007】また、図3に示すように、ドラム端面には
シ−ル面圧を高めてシ−ル性を向上させるために凸状部
(フランジ部)1aが設けられているため、サイド堰2
には凸状部1aに沿った磨耗溝2aが形成される。一
方、鋳造中においてドラム周面に地金等の異物が付着す
ると、この異物がドラム間隙を通過するとき、可動側の
ドラムが一瞬開放する(矢印方向)。このドラム間隙の
開放により、凸状部1aが磨耗溝の斜面2cに乗り上げ
て隙間gが生じる。この間隙gに侵入した溶鋼が地金と
なって斜面2cを損傷させてシール不良となり、溶鋼漏
れが生じる。
Further, as shown in FIG. 3, a convex portion (flange portion) 1a is provided on the end face of the drum to increase the seal surface pressure to improve the sealability. 2
Is formed with a wear groove 2a along the convex portion 1a. On the other hand, if foreign matter, such as metal, adheres to the drum peripheral surface during casting, the movable-side drum is momentarily opened (in the direction of the arrow) when the foreign matter passes through the gap between the drums. With the opening of the drum gap, the convex portion 1a runs on the slope 2c of the wear groove, and a gap g is generated. The molten steel that has entered the gap g serves as metal and damages the slope 2c, resulting in poor sealing and leakage of molten steel.

【0008】そこで本発明は、前記のようにして溶湯洩
れが生じる前に、サイド堰をドラム端面との接触面内に
おいて往復移動させることにより、前記のようにしてド
ラム間隙に侵入したサイド堰のドラム間隙部を磨滅さ
せ、また、サイド堰磨耗溝の斜面を磨滅させるように構
成したものである。
Accordingly, the present invention provides a method for controlling the side weir of the side weir that has entered the drum gap as described above by reciprocating the side weir in the contact surface with the drum end surface before the molten metal leaks as described above. The structure is such that the gap between the drums is abraded and the slope of the side weir abrasion groove is abraded.

【0009】即ち、本発明による双ドラム式連続鋳造方
法は、互いに反対方向へ回転する一対の冷却ドラムと、
該冷却ドラムの両端面に押し付けられた一対のサイド堰
とで形成された湯溜まり部に金属溶湯を供給しながら薄
鋳片を鋳造する方法において、前記サイド堰をドラム端
面との接触面内において水平方向にしてストロークが5
mm超、速度が100μm/sec 以下の条件下で往復移動を
繰り返すことを特徴とする。
That is, the twin-drum continuous casting method according to the present invention comprises: a pair of cooling drums rotating in opposite directions;
In a method of casting a thin slab while supplying a molten metal to a pool formed by a pair of side weirs pressed against both end faces of the cooling drum, the side weir is provided in a contact surface with a drum end face. 5 strokes horizontally
It is characterized in that reciprocating movement is repeated under the condition of exceeding mm and a speed of 100 μm / sec or less.

【0010】また、本発明による双ドラム式連続鋳造装
置は、互いに反対方向へ回転する一対の冷却ドラムと、
該冷却ドラムの両端面に押し付けられた一対のサイド堰
とを設けた双ドラム式連続鋳造装置において、前記サイ
ド堰をドラム端面に押し付ける押付装置と、該押付装置
の反力を受ける移動フレームと、該移動フレームをドラ
ム端面との接触面内において往復移動する往復移動装置
とを設けたことを特徴とする。
A twin-drum continuous casting apparatus according to the present invention comprises a pair of cooling drums rotating in opposite directions to each other;
In a twin-drum continuous casting apparatus provided with a pair of side weirs pressed against both end surfaces of the cooling drum, a pressing device for pressing the side weir against the drum end surface, a moving frame receiving a reaction force of the pressing device, And a reciprocating device for reciprocating the moving frame in a contact surface with the drum end surface.

【0011】[0011]

【発明の実施の形態】図4は、本発明の方法を実施する
双ドラム式連続鋳装置の正面図を例示したもので、図5
は、図4の平面図である。本装置は、冷却ドラム1の幅
中央線1bを境にして左右同形であるため、図では左右
一方(右側)のみを示し、他方側の説明は省略する。ま
た、図1に示した従来例と実質的に同じ部分については
同じ参照符号を付して比較を容易にしている。一対の冷
却ドラム1,1は、内部を水のような冷却媒体によって
冷却されているとともに、図示しない駆動機構によって
同じ回転速度で互いに反対向きに回転駆動される。
FIG. 4 is a front view of a twin-drum continuous casting apparatus for carrying out the method of the present invention.
FIG. 5 is a plan view of FIG. 4. Since this device has the same shape on the left and right sides with respect to the width center line 1b of the cooling drum 1, only one of the right and left sides (right side) is shown in the figure, and the description of the other side is omitted. In addition, the same reference numerals are given to substantially the same parts as those in the conventional example shown in FIG. 1 to facilitate comparison. The inside of the pair of cooling drums 1 and 1 is cooled by a cooling medium such as water, and is driven to rotate in opposite directions at the same rotation speed by a drive mechanism (not shown).

【0012】冷却ドラム1の両端面をシールする一対の
サイド堰2は、図6に示すようにベースプレート(耐火
物)2-1と金枠2-2とにより構成されており、ベースプ
レート2-1の冷却ドラム端面との摺動面部にはセラミッ
クスプレート2-3が埋め込まれている。セラミックスプ
レート2-3は、例えばBN,AlN,Si3 4 等を主
成分としている。
A pair of side dams 2 for sealing both end surfaces of the cooling drum 1 are constituted by a base plate (refractory) 2-1 and a metal frame 2-2 as shown in FIG. A ceramic plate 2-3 is buried in the sliding surface with the end surface of the cooling drum. The ceramic plate 2-3 mainly contains, for example, BN, AlN, Si 3 N 4 or the like.

【0013】サイド堰2の背面には、該サイド堰をドラ
ム端面に押し付けるための押付装置4−1 〜4−3 が上
部に2箇所、下部に1箇所取り付けられており、該押付
装置には電動式の油圧シリンダーが用いられている。各
押付装置4−1 〜4−3 は移動フレーム5に取り付けら
れており、移動フレーム5はガイドレール6に沿って移
動自在である。移動フレーム5の一側面にはサ−ボモ−
タ−、ステッピングシリンダ−等、を用いた往復移動装
置7が取り付けられており、往復移動装置7の駆動によ
りサイド堰2はA−Aの方向に往復移動する。なお、移
動フレーム5の背面は、図示しないが、ガイド部材を介
して固定フレームに支持されており、移動フレーム5は
固定フレームにより前記押付装置の反力を受けるように
なっている。また、往復移動装置7は前記固定フレーム
に固定されている。図中8は、サイド堰2を支持する伸
縮自在な支点軸である。
On the back surface of the side weir 2, pressing devices 4-1 to 4-3 for pressing the side weir against the drum end face are mounted at two places at an upper part and one place at a lower part. Electric hydraulic cylinders are used. Each of the pressing devices 4-1 to 4-3 is attached to a moving frame 5, and the moving frame 5 is movable along a guide rail 6. On one side of the moving frame 5, a servo
A reciprocating device 7 using a table, a stepping cylinder, or the like is mounted, and the side weir 2 reciprocates in the direction of AA by driving the reciprocating device 7. Although not shown, the back surface of the moving frame 5 is supported by a fixed frame via a guide member, and the moving frame 5 receives a reaction force of the pressing device by the fixed frame. Further, the reciprocating device 7 is fixed to the fixed frame. Reference numeral 8 in the figure denotes an extendable fulcrum shaft that supports the side weir 2.

【0014】本装置を用いて、図1により説明したよう
に回転する冷却ドラム1の両端面にサイド堰2を押し付
けた状態で湯溜まり部3に金属溶湯eを連続的に供給
し、薄鋳片を連続鋳造する訳であるが、この連続鋳造中
において、往復移動装置7をA−A方向に駆動させる。
往復移動装置7を駆動させると、移動フレーム5、押付
装置4及びサイド堰2がA−A方向に往復移動する。
Using this apparatus, the molten metal e is continuously supplied to the pool 3 with the side dams 2 pressed against both end faces of the rotating cooling drum 1 as described with reference to FIG. The pieces are continuously cast. During the continuous casting, the reciprocating device 7 is driven in the direction AA.
When the reciprocating device 7 is driven, the moving frame 5, the pressing device 4, and the side dam 2 reciprocate in the AA direction.

【0015】サイド堰2がA−A方向に往復移動する
と、図2に示したサイド堰のドラム間隙部2bが磨滅す
るため、図7に示すようにドラム間隙部2bは略平坦に
なる。そのため、図2のようにドラム間隙部2bがドラ
ム間隙に侵入して凝固シェルsを破壊したりシェル形成
を妨害することはない。また、図7に示すようにサイド
磨耗溝の斜面2cが磨滅して間隙Gが形成されるため、
鋳造中に地金噛込み等によりドラム間隙が開放しても、
間隙Gがドラム開放代となるため、図3のように凸状部
1aが斜面2cに乗り上げて隙間gが生じることはな
い。
When the side weir 2 reciprocates in the AA direction, the drum gap 2b of the side weir shown in FIG. 2 is worn away, and the drum gap 2b becomes substantially flat as shown in FIG. Therefore, as shown in FIG. 2, the drum gap 2b does not enter the drum gap to break the solidified shell s or hinder the formation of the shell. Further, as shown in FIG. 7, since the slope 2c of the side wear groove is worn away to form the gap G,
Even if the gap between the drums is opened due to ingot of metal during casting,
Since the gap G serves as a drum opening margin, the gap g does not occur when the convex portion 1a runs on the slope 2c as shown in FIG.

【0016】本発明における往復移動は、鋳造中を通し
て連続して実施してもよいが、サイド堰耐火物(セラミ
ックプレート)の磨耗量が、前記溶湯漏れが発生する限
界に到達した時点毎で実施してもよい。前記のようにサ
イド堰を往復移動させてドラム間隙部2b及びサイド磨
耗溝の斜面2cを磨滅させることにより、溶湯漏れを防
止するためには、往復移動のストロークを5mm超、速
度を100μm/sec以下とすることが必要である。
In the present invention, the reciprocating movement may be performed continuously throughout the casting. However, the reciprocating movement is performed every time the wear amount of the refractory (ceramic plate) of the side dam reaches the limit at which the molten metal leaks. May be. As described above, in order to prevent the molten metal from leaking by reciprocating the side weir to wear the drum gap 2b and the slope 2c of the side abrasion groove, the reciprocating stroke is more than 5 mm and the speed is 100 μm / sec. It is necessary to:

【0017】図8は、サイド堰を往復移動させたときの
ストローク及び移動速度とn数=5における湯洩れ発生
率の関係を示している。図から、湯漏れ発生率を零にす
るためには、ストロークを5mm超、移動速度を100
μm/sec以下とすることが必要である。ストローが
5mm以下では、ドラム間隙部2b及びサイド磨耗溝の
斜面2cの磨滅が不十分であり、移動速度が100μm
/secを超えると、セラミックプレ−ト2−3 のチッ
ピング(微小欠損)が激しくなり、その結果、シ−ル不
良により溶鋼漏れが発生する。ストロークの上限は、基
本的には限定されないが、シ−ルする部分のセラミック
プレ−ト2−3 の幅とドラム凸状部1aの幅から幾何学
的に決まる値である。また、移動速度の下限はセラミッ
クプレ−トの磨耗速度以上が望ましい。
FIG. 8 shows the relationship between the stroke and the moving speed when the side weir is reciprocated and the rate of leaking water when n = 5. From the figure, it can be seen that in order to reduce the rate of hot water leakage to zero, the stroke should be over 5 mm and the moving speed should be 100
It is necessary to be less than μm / sec. When the straw is 5 mm or less, the drum gap 2b and the slope 2c of the side wear groove are not sufficiently worn, and the moving speed is 100 μm.
If the time exceeds / sec, chipping (minute deficiency) of the ceramic plate 2-3 becomes severe, and as a result, molten steel leaks due to poor sealing. Although the upper limit of the stroke is not limited basically, it is a value geometrically determined from the width of the ceramic plate 2-3 and the width of the drum convex portion 1a in the portion to be sealed. The lower limit of the moving speed is desirably equal to or higher than the wear speed of the ceramic plate.

【0018】以上の説明ではサイド堰を水平方向に往復
移動させたが、本発明における往復移動は、水平方向に
限定されるものではなく、例えば支点軸8を中心にした
円弧移動でもよく、要するにドラム周縁と交差する方向
の移動であればよい。この場合のストローク及び移動速
度は水平方向に換算した値である。なお、従来技術であ
るところの、ドラム周面に生成した凝固シェルとサイド
堰内面に生成した凝固シェルとの連結防止のために行う
サイド堰の振動(振幅0.10〜1.0mm、周波数1
0〜20ヘルツ程度)と、本発明によるサイド堰の往復
移動とを併用してもよい。
In the above description, the side weir is reciprocated in the horizontal direction. However, the reciprocation in the present invention is not limited to the horizontal direction. For example, the reciprocation may be an arc movement centered on the fulcrum shaft 8. What is necessary is just to move in the direction crossing the drum periphery. The stroke and the moving speed in this case are values converted in the horizontal direction. In addition, the vibration of the side weir (amplitude 0.10 to 1.0 mm, frequency 1
(About 0 to 20 Hertz) and the reciprocating movement of the side weir according to the present invention.

【0019】[0019]

【発明の効果】双ドラム式連続鋳造においては、サイド
堰耐火物のドラム間隙部がドラム間隙に侵入して凝固シ
ェルを破壊したりシェル形成を妨害し、また、地金等の
噛み込み等よにるドラム間隙の開放により、ドラム凸状
部がサイド堰磨耗溝の斜面に乗り上げて隙間が生じるこ
とから、湯洩れが発生する。本発明によれば、このよう
にして湯洩れが発生する前に、サイド堰をドラム端面と
の接触面内において往復移動をさせることにより、サイ
ド堰のドラム間隙部やサイド堰磨耗溝の斜面を磨滅させ
ることで湯洩れを防止できる。その結果、湯洩れによる
鋳片切れや鋳片両端部の形状不良を防止して形状良好な
鋳片を安定して製造できる。
In the twin drum type continuous casting, the gap between the drums of the refractory of the side dam enters the gap between the drums to break the solidified shell or hinder the formation of the shell. When the gap between the drums is opened, the convex portion of the drum rides on the slope of the side weir abrasion groove, so that a gap is generated. According to the present invention, before the molten metal leaks, the side weir is reciprocated within the contact surface with the drum end surface, thereby making it possible to reduce the gap between the drum of the side weir and the slope of the side weir abrasion groove. It is possible to prevent hot water leakage by abrasion. As a result, it is possible to prevent slab breakage and poor shape of both ends of the slab due to leakage of the molten metal and stably produce a slab having a good shape.

【図面の簡単な説明】[Brief description of the drawings]

【図1】従来の双ドラム式連続鋳造装置の斜視図。FIG. 1 is a perspective view of a conventional twin-drum continuous casting apparatus.

【図2】サイド堰耐火物のドラム間隙への進入によるシ
ェル破壊を説明する平断面図。
FIG. 2 is a cross-sectional plan view illustrating shell destruction due to penetration of refractories of a side dam into a drum gap.

【図3】ドラム凸状部のサイド堰斜面への乗り上げによ
る隙間の発生を説明する平断図。
FIG. 3 is a cross-sectional view for explaining the generation of a gap due to the protrusion of the drum on the side weir slope.

【図4】本発明の方法を実施する双ドラム式連続鋳造装
置の正面図。
FIG. 4 is a front view of a twin-drum continuous casting apparatus for implementing the method of the present invention.

【図5】図4の平面図。FIG. 5 is a plan view of FIG. 4;

【図6】サイド堰の平面図。FIG. 6 is a plan view of a side weir.

【図7】本発明によるドラム端面とサイド堰とのシール
状況を説明する図。
FIG. 7 is a view for explaining a sealing state between a drum end surface and a side weir according to the present invention.

【図8】サイド堰往復移動のストロークと速度及び湯漏
れ発生率の関係を示す図。
FIG. 8 is a diagram showing a relationship between a stroke of reciprocating movement of a side weir, a speed, and a hot water leak occurrence rate.

【符号の説明】[Explanation of symbols]

1…冷却ドラム 1a…冷却ドラムの凸状部 1b…ドラム幅中央線 2…サイド堰 2a…サイド堰の磨耗溝 2b…サイド堰のドラム間隙部 2c…磨耗溝の斜面 2−1 …ベースプレート 2−2 …金枠 2−3 …セラミックプレート 3…湯溜まり部 4…押付装置 5…移動フレーム 6…ガイドレール 7…往復移動装置 8…支点軸 c…薄鋳片 e…金属溶湯 s…凝固シエル g…間隙 G…間隙 DESCRIPTION OF SYMBOLS 1 ... Cooling drum 1a ... Convex part of cooling drum 1b ... Drum width center line 2 ... Side weir 2a ... Wear groove of side weir 2b ... Drum gap part of side weir 2c ... Slope of wear groove 2-1 ... Base plate 2- 2 ... metal frame 2-3 ceramic plate 3 ... pool part 4 ... pressing device 5 ... moving frame 6 ... guide rail 7 ... reciprocating device 8 ... fulcrum shaft c ... thin cast piece e ... molten metal s ... solidified shell g … Gap G… Gap

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 互いに反対方向へ回転する一対の冷却ド
ラムと、該冷却ドラムの両端面に押し付けられた一対の
サイド堰とで形成された湯溜まり部に金属溶湯を供給し
ながら薄鋳片を鋳造する方法において、前記サイド堰を
ドラム端面との接触面内において水平方向にしてストロ
ークが5mm超、速度が100μm/sec以下の条件下で往
復移動を繰り返すことを特徴とする双ドラム式連続鋳造
方法。
1. A thin cast slab is supplied to a pool formed by a pair of cooling drums rotating in opposite directions and a pair of side weirs pressed against both end surfaces of the cooling drum while supplying molten metal. A twin-drum continuous casting method, wherein the side weir is reciprocated in a horizontal direction in a contact surface with a drum end face under a condition that a stroke is more than 5 mm and a speed is 100 μm / sec or less. Method.
【請求項2】 互いに反対方向へ回転する一対の冷却ド
ラムと、該冷却ドラムの両端面に押し付けられた一対の
サイド堰とを設けた双ドラム式連続鋳造装置において、
前記サイド堰をドラム端面に押し付ける押付装置と、該
押付装置の反力を受ける移動フレームと、該移動フレー
ムをドラム端面との接触面内において往復移動する往復
移動装置とを設けたことを特徴とする双ドラム式連続鋳
造装置。
2. A twin-drum continuous casting apparatus comprising: a pair of cooling drums rotating in opposite directions; and a pair of side weirs pressed against both end surfaces of the cooling drum.
A pressing device for pressing the side weir against the drum end surface, a moving frame receiving a reaction force of the pressing device, and a reciprocating device for reciprocating the moving frame in a contact surface with the drum end surface are provided. Twin-drum continuous casting machine.
JP21136598A 1998-07-27 1998-07-27 Twin-drum type continuous casting method and device Pending JP2000042692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21136598A JP2000042692A (en) 1998-07-27 1998-07-27 Twin-drum type continuous casting method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21136598A JP2000042692A (en) 1998-07-27 1998-07-27 Twin-drum type continuous casting method and device

Publications (1)

Publication Number Publication Date
JP2000042692A true JP2000042692A (en) 2000-02-15

Family

ID=16604770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21136598A Pending JP2000042692A (en) 1998-07-27 1998-07-27 Twin-drum type continuous casting method and device

Country Status (1)

Country Link
JP (1) JP2000042692A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066238B2 (en) 2002-06-25 2006-06-27 Voest-Alpine Industrieanlagenbau Gmbh & Co. Method for producing a metal strip using a two-roller casting device
KR100817186B1 (en) 2006-10-16 2008-03-27 주식회사 포스코 Side edge dam device of twin roll type strip caster
JP2013512108A (en) * 2009-12-28 2013-04-11 ポスコ Edge dam horizontal vibration control device and control method for twin roll thin plate casting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7066238B2 (en) 2002-06-25 2006-06-27 Voest-Alpine Industrieanlagenbau Gmbh & Co. Method for producing a metal strip using a two-roller casting device
KR100817186B1 (en) 2006-10-16 2008-03-27 주식회사 포스코 Side edge dam device of twin roll type strip caster
JP2013512108A (en) * 2009-12-28 2013-04-11 ポスコ Edge dam horizontal vibration control device and control method for twin roll thin plate casting machine

Similar Documents

Publication Publication Date Title
JP3367809B2 (en) Side wall support for equipment for continuous casting of metal strip between two rolls
JPH05220546A (en) Twin drum type continuous casting system
JP2000042692A (en) Twin-drum type continuous casting method and device
JPS62259644A (en) Method and apparatus for producing rapidly cooled sheet metal having excellent end face
JPS60166146A (en) Continuous casting device for thin plate
JP2004122193A (en) Twin drum type continuous casting method and apparatus
EP0265164B1 (en) Method and apparatus for producing rapidly solidified metallic tapes
JP2972098B2 (en) Short-side independent mechanism of horizontal vibration mold
JPH0749138B2 (en) Thin plate continuous casting equipment
JP2000218347A (en) Twin-drum type continuous casting method and equipment
JPH0562019B2 (en)
KR100949735B1 (en) Strip radiant heat isolation apparatus of twin roll type strip caster
KR200169959Y1 (en) Twin roll type sheet casting apparatus
JPH0450097B2 (en)
JPH01186247A (en) Side weir in twin drum type continuous casting machine
JPS61266160A (en) Continuous casting device for thin sheet
JPS63183756A (en) Belt holding pad device for belt type continuous casting machine
JP2582952B2 (en) Metal ribbon continuous casting machine
JPS61253150A (en) Continuous casting method by twin belt caster
JP2002153948A (en) Width changeable mold for continuous casting
KR20110069595A (en) Structure of edge dam in twin roll strip caster
JP2001205400A (en) Method for twin-drum type continuous casting of strip and casting device
JPH01258852A (en) Continuous casting machine for cast strip
JPH05318047A (en) Twin drum strip continuous casting apparatus
JPH0663703A (en) Method for oscillating mold for continuous casting and mold for continuous casting

Legal Events

Date Code Title Description
A621 Written request for application examination

Effective date: 20041217

Free format text: JAPANESE INTERMEDIATE CODE: A621

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070122

A131 Notification of reasons for refusal

Effective date: 20070130

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20070529