JP2831136B2 - Method and apparatus for controlling side dam pressing force in continuous casting machine for thin slab - Google Patents
Method and apparatus for controlling side dam pressing force in continuous casting machine for thin slabInfo
- Publication number
- JP2831136B2 JP2831136B2 JP2406593A JP40659390A JP2831136B2 JP 2831136 B2 JP2831136 B2 JP 2831136B2 JP 2406593 A JP2406593 A JP 2406593A JP 40659390 A JP40659390 A JP 40659390A JP 2831136 B2 JP2831136 B2 JP 2831136B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- frictional force
- pressing force
- cooling drum
- increase
- 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
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Description
【０００１】[0001]
【産業上の利用分野】本発明は溶湯から薄鋳片を連続し
て鋳造する双ドラム式鋳造技術に関し、特に、サイド堰
押圧力の制御技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a twin-drum type casting technique for continuously casting thin slabs from molten metal, and more particularly to a technique for controlling a side dam pressing force.
【０００２】[0002]
【従来の技術】一般に双ドラム式連続鋳造機（以下連鋳
機と云う）は図４に示すように冷却ドラム１，１を平行
にかつ逆方向に回転するように配置し、該冷却ドラム
１，１の両端面にサイド堰２，（２)(サイド堰（２）は
図示せず）を設けて湯溜り部を構成し、該湯溜り部内の
溶湯Ｍを冷却ドラム１，１の回転によって冷却しつゝ薄
鋳片Ｓを鋳造するようになっている。また、サイド堰
２，（２）は冷却ドラム１，１の両端面に押圧器４によ
って押付けられ、冷却ドラムの回転による摩耗によって
シール状態を維持して湯漏れを防止している。(Referred to hereinafter caster) [Prior Art] Generally, a twin drum type continuous casting machine is arranged to rotate parallel to and opposite the cooling drum 1, 1 as shown in FIG. 4, the cooling drum 1 , 1 are provided with side dams 2 and 2 (2) (side dams 2 are not shown) to form a pool, and the molten metal M in the pool is rotated by the rotation of the cooling drums 1 and 1. Upon cooling, a thin slab S is cast. Further, the side weirs 2, (2) are pressed against both end surfaces of the cooling drums 1, 1 by a presser 4, and maintain a sealed state by wear due to rotation of the cooling drum to prevent hot water leakage.
【０００３】かゝるサイド堰押圧技術に関し、従来種々
な提案がなされている。たとえば鋳造時にサイド堰に作
用する拡開力を制御する技術が特開昭63−177944号公報
又は特開昭64-83337号公報などで開示されている。[0003] Various proposals have heretofore been made with respect to such side weir pressing technology. For example, Japanese Patent Application Laid-Open No. 63-177944 or Japanese Patent Application Laid-Open No. 64-83337 discloses a technique for controlling a spreading force acting on a side weir during casting.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
技術ではサイド堰に生じる摩擦力を考慮していないた
め、所望するシール面圧力を得るために、サイド堰押圧
手段で押圧調整したとしても、実際の冷却ドラム両端面
に作用するシール面圧力は摩擦力に起因する押付けの増
減圧力に対応した誤差を伴い、かつ摩擦力の増変化によ
り圧力誤差は徐々に拡がってサイド堰の片減り現象が生
じ、また最悪の場合はシールに必要な密着圧力の維持が
困難となって湯漏れを発生して鋳造を持続できない事態
となる。However, in the prior art, since the frictional force generated in the side weir is not taken into account, even if the pressure is adjusted by the side weir pressing means in order to obtain a desired pressure on the sealing surface, it is not practical. The pressure on the sealing surface acting on both ends of the cooling drum involves an error corresponding to the pressure increase and decrease due to the frictional force, and the pressure error gradually increases due to the increase and decrease in the frictional force, causing the side weir to decrease. In the worst case, it is difficult to maintain the close contact pressure required for the seal, and the molten metal leaks, so that casting cannot be continued.
【０００５】本発明は連鋳機におけるサイド堰の押圧力
に関する上記問題点を解決するものである。The present invention solves the above-mentioned problems relating to the pressing force of the side weir in the continuous casting machine.
【０００６】[0006]
【課題を解決するための手段】本発明は回転中の冷却ド
ラム両端面とサイド堰平面部との密接部分での圧力状況
の解明によってなされたもので、その特徴は、冷却ドラ
ム両端面とサイド堰との間に生じた摩擦力を求め、この
摩擦力によって生ずるサイド堰押圧力の増減圧力を求
め、しかる後該増減圧力に応じて調整された押圧力でサ
イド堰を冷却ドラム両端面に押圧するところにある。SUMMARY OF THE INVENTION The present invention has been made by elucidating the pressure condition at the close contact portion between both end surfaces of a rotating cooling drum and a flat surface of a side dam. calculated the frictional force generated between the weir, pressing the increase and decrease pressure of the side dam pressing force generated by the frictional force determined, the side weirs to the cooling drum end surfaces with a pressing force which is adjusted according to thereafter bulking vacuum force Where you do it.
【０００７】以下本発明を詳細に説明する。Hereinafter, the present invention will be described in detail.
【０００８】[0008]
【作用】回転中の冷却ドラム両端面とサイド堰との間に
は摩擦係数と押圧力とで決まる摩擦力が働く。この摩擦
力はサイド堰を下方へ押下げる作用と、相対する冷却ド
ラム側へ押出す作用とを有する。この作用力は押圧手段
の支持点を介して冷却ドラム両端面に平行な水平軸を中
心とするモーメントと垂直軸を中心とするモーメントを
生じ、該モーメントは冷却ドラム両端面とサイド堰の密
接部面圧（シール面圧）を増減させる。The frictional force determined by the friction coefficient and the pressing force acts between the both ends of the rotating cooling drum and the side weir. This frictional force has a function of pushing down the side weir and a function of pushing it to the opposite cooling drum side. The action force is produced moment about the moment and a vertical axis around the horizontal axis parallel to the cooling drum end faces through the support point of the pressing means, the moment intimate part of the cooling drum end faces and the side weirs Increase or decrease the surface pressure (seal surface pressure).
【０００９】従って、この摩擦力を求めてシール部分の
増減圧力を算出し、この値で調整した押圧力でサイド堰
を冷却ドラム両端面に押圧すれば、所望のシール面圧を
精度高く、連続して確保することができる。Therefore, the frictional force is obtained to calculate the increase / decrease pressure of the sealing portion, and the side weir is pressed against both end surfaces of the cooling drum with the pressing force adjusted based on this value. Can be secured.
【００１０】[0010]
【実施例】本発明の一実施例を図面に基づいて説明す
る。図１，２及び３において、サイド堰２の冷却ドラム
１，１の端面に接する面と反対側の面に、サイド堰支持
軸３を固設し、該サイド堰支持軸３を断面角状のサイド
堰支持軸シリンダー６に嵌入する。また、上記反対側面
に、押圧器４のロッド４−１〜４−３を固設し、各ロッ
ドを油圧シリンダー５−１〜５−３に嵌入する。なお、
前記サイド堰支持軸シリンダー６と油圧シリンダー５−
１〜５−３の端部はそれぞれ基盤８に固設されている。
前記シリンダー６には荷重検出器７−１〜７−４をその
検出端がサイド堰支持軸３の直角方位の周面に接するよ
うに配設する。前記荷重検出器７−１〜７−４には、該
検出器で検出した荷重から摩擦力を演算する摩擦力演算
装置９を連結し、該演算装置９には摩擦力によるシール
面圧の増減圧力を演算する押圧力加減演算装置10を連結
し、更に該演算装置10には増減圧力に応じて調整された
調整圧力信号を出力する押圧力駆動制御装置11−１〜11
−３を連結し、該制御装置を前記押圧器４の油圧シリン
ダー５−１〜５−３に連結する。An embodiment of the present invention will be described with reference to the drawings. In FIGS. 1, 2, and 3 , a side weir support shaft 3 is fixed to a surface of the side weir 2 opposite to a surface in contact with an end surface of the cooling drum 1, 1 and the side weir support shaft 3 is formed into a square cross section. It is fitted into the side weir support shaft cylinder 6. Further, the rods 4-1 to 4-3 of the pressing device 4 are fixed to the opposite side surface, and the rods are fitted into the hydraulic cylinders 5-1 to 5-3. In addition,
The side weir support shaft cylinder 6 and the hydraulic cylinder 5-
The ends 1 to 5-3 are fixed to the base 8 respectively.
The cylinder 6 is provided with load detectors 7-1 to 7-4 such that the detection ends thereof are in contact with the peripheral surface of the side weir support shaft 3 in the right-angle direction. It said load detector 7-1 to 7-4 are connected to the frictional force calculating unit 9 for calculating the frictional force from the load detected by the detector, seal frictional force to the arithmetic unit 9
A pressing force adjustment processor 10 for calculating the increasing / decreasing pressure of the surface pressure is connected, and the operating device 10 is further adjusted according to the increasing / decreasing pressure.
Pressing force drive control devices 11-1 to 11 that output adjustment pressure signals
-3, and the control device is connected to the hydraulic cylinders 5-1 to 5-3 of the pressing device 4.
【００１１】本発明の装置は以上の構成よりなるが、か
ゝる装置を次のようにして作動する。先ず、冷却ドラム
１，１の端面にサイド堰２を油圧シリンダー５−１〜５
−３により所望圧力で押圧し、冷却ドラム１，１を回転
する。湯溜り部内の溶湯は冷却ドラムに接する部分より
冷却されてシェルを形成し、冷却ドラムに圧着されて薄
鋳片を製造するが、鋳造が進むにつれサイド堰の摩耗に
伴い、押圧力が増加して各冷却ドラム端面とサイド堰と
の密接部分における摩擦力が増加する。上記摩擦力は冷
却ドラム両端面に平行な水平軸を中心とするモーメント
と垂直軸を中心とするモーメントを生ぜしめ、サイド堰
と冷却ドラム端面部との密接シール部分の面圧を増減さ
せる。このようにサイド堰の上下左右の面圧にアンバラ
ンスが生じることによってシール不良が発生する。従っ
て、鋳造時、常にサイド堰と冷却ドラム端面の密接部分
の上下左右各方向の摩擦力を求め、面圧のバランスをと
ることが必要である。 The apparatus according to the present invention has the above-mentioned structure, and operates as follows. First, side weirs 2 are provided on the end surfaces of the cooling drums 1 and 1 by hydraulic cylinders 5-1 to 5-5.
Then, the cooling drums 1 and 1 are rotated at a desired pressure by -3. The molten metal in the basin is cooled from the part in contact with the cooling drum to form a shell, and is pressed against the cooling drum to produce a thin slab, but as the casting proceeds, the pressing force increases with the wear of the side dam. As a result, the frictional force at the close contact portion between each cooling drum end face and the side weir increases. The frictional force generates a moment about the horizontal axis parallel to both ends of the cooling drum and a moment about the vertical axis, and increases or decreases the surface pressure of the close sealing portion between the side weir and the end face of the cooling drum. In this way, the upper, lower, left and right surface pressure of
Insufficient sealing causes poor sealing. Therefore, at the time of casting, the frictional forces in the up, down, left, and right directions of the close contact portion between the side weir and the end face of the cooling drum are always obtained to balance the surface pressure
It is necessary to
【００１２】上記多方向の摩擦力を求めるためにサイド
堰支持軸３の周囲に設けた４個の荷重検出器７−１〜７
−４によって荷重が検出され、荷重の信号は摩擦力演算
装置９に送られ、こゝで摩擦力が演算される。しかるの
ち、該演算装置９からの摩擦力信号は押圧力加減演算装
置10へ送られ、こゝで該摩擦力データから摩擦力に起因
する押圧力の増減圧力が演算処理で求められる。しかし
て、増減圧力に応じて調整された調整圧力信号を押圧力
駆動制御装置11−１〜11−３に送り、該制御装置によっ
て押圧器の油圧シリンダー５−１〜５−３の押圧作動を
制御するのである。Four load detectors 7-1 to 7 provided around the side weir support shaft 3 for obtaining the above-mentioned multidirectional frictional force.
-4, the load is detected, and a signal of the load is sent to the frictional force calculating device 9, where the frictional force is calculated. Thereafter, the frictional force signal from the arithmetic unit 9 is sent to the pressing force adjusting arithmetic unit 10, where the increasing / decreasing pressure of the pressing force due to the frictional force is calculated from the frictional force data. Thus, an adjustment pressure signal adjusted according to the increase / decrease pressure is sent to the pressing force drive control devices 11-1 to 11-3, and the control device controls the pressing operation of the hydraulic cylinders 5-1 to 5-3 of the pressing device. Control it.
【００１３】すなわち、摩擦力に起因する面圧の変化を
調整押圧力で補正しつゝ所望のシール面圧を維持するよ
うに押圧手段によってサイド堰を押圧するのである。こ
ゝで、水平軸を中心とするモーメントの場合について上
記摩擦力と押圧力との関係を更に具体的に説明する。 図
１及び２において、回転する冷却ドラム１，１にサイド
堰２を等しい押圧力 Ｐ 1 ，Ｐ 2 で押付けた場合、冷却ド
ラム１，１とサイド堰２の間には、サイド堰２を相対す
る冷却ドラム１，１側へ押出す方向の摩擦力Ｆ 1 ，Ｆ 2
が働く。通常この摩擦力Ｆ 1 ，Ｆ 2 は冷却ドラム１，１
の間で同じではないため（図１ではＦ 2 よりもＦ 1 が
大）、サイド堰２には支持点Ｐを支点とし、ドラム端面
に平行な水平軸を中心とするモーメントを生じる。その
結果、反力Ｒ 1 側のシール面圧がＲ f だけ増大し、反力
Ｒ 2 側のシール面圧がＲ f だけ減少してシール不良が発
生する。 シール不良を解消するためには、摩擦力の差
（Ｆ 1 −Ｆ 2 ）を求め、この摩擦力の差（Ｆ 1 −Ｆ 2 ）
によって生じるシール面圧の増減圧力Ｒ f を求め、この
増減圧力Ｒ f に応じてサイド堰２の押圧力を調整すれば
よい。 水平軸を中心とするモーメントにより発生する摩
擦力の差（Ｆ 1 −Ｆ 2 ）は（１）式で表される。 但し、 ｆ１；荷重検出器（７−２）により検出された荷重 ｆ２；荷重検出器（７−４）により検出された荷重 Ｌ ；サイド堰支持点（Ｐ）と荷重検出器との距離 Ｌ０；サイド堰支持点（Ｐ）と冷却ドラム端面との距離 摩擦力の差（Ｆ 1 −Ｆ 2 ）によって生じる増減圧力Ｒ f
は、（２）式で表される。 但し、 Ｓ；押圧力Ｐ 1 ，Ｐ 2 を加える位置間の距離 増減圧力Ｒ f が生じるため、押圧力Ｐ 1 とＰ 2 を等しく
して押圧しても、ドラム端面に発生するシール面圧は、
Ｐ 1 側がＲ 1 ＋Ｒ f 、Ｐ 2 側がＲ 2 −Ｒ f とな って、反
力はＲ 1 側が増大し、Ｒ 2 側が減少するので、シール面
圧は左右両端で差異が生じる。左右両端面のシール面圧
を等しくするには、増減圧力Ｒ f を（２）式により算出
し、押圧力Ｐ 1 側をＲ f だけ減少させ、Ｐ 2 側をＲ f だ
け増加させて圧力を付与することにより、サイド堰の左
右両端面に所望のシール面圧が与えられる。 次に、垂直
軸を中心とするモーメントの場合について説明する。図
３において、冷却ドラム１，１の回転により、冷却ドラ
ム１とサイド堰２の間には、サイド堰２を下方へ押し下
げる方向の摩擦力Ｆ d が働く。この摩擦力Ｆ d により、
サイド堰２には支持点Ｐを支点とし、垂直軸を中心とす
るモーメントを生じる。その結果、サイド堰２の上部の
シール面圧がＲ ff だけ増大し、下部のシール面圧がＲ ff
だけ減少してシール不良が発生する。 シール不良を解消
するためには、摩擦力Ｆ d を（３）式により求め、この
摩擦力Ｆ d によって生じるシール面圧の増減圧力Ｒ ff を
（４）式により求め、この増減圧力Ｒ ff に応じてサイド
堰２の押圧力を調整すればよい。 垂直軸を中心とするモ
ーメントによりドラム端面に発生する摩擦力Ｆ d は、
（３）式で表される。 但し、 ｆ３；荷重検出器（７−１）により検出された荷重 ｆ４；荷重検出器（７−３）により検出された荷重 Ｌ ；サイド堰支持点（Ｐ）と荷重検出器との距離 Ｌ０；サイド堰支持点（Ｐ）と冷却ドラム端面との距離 摩擦力Ｆ d によって生じるシール面圧の増減圧力Ｒ
ff は、（４）式で表される。 但し、 Ｈ；押圧力Ｐ u ，Ｐ d を加える位置間の距離 なお、押圧力Ｐ u は油圧シリンダー５−１，５−２の合
計押圧力である。 前記と同様に増減圧力Ｒ ff が生じるた
め、押圧力Ｐ u とＰ d を等しくして押圧しても、ドラム
端面に発生するシール面圧は、上部合計がＲ u ＋Ｒ ff 、
下部合計がＲ d −Ｒ ff となるため、シール面圧は上下に
おいてＲ ff だけの増減差異が生じる。シール面圧を等し
くするには、増減圧力Ｒ ff を（４）式により算出し、押
圧力Ｐ u 側はＲ ff だけ減少させ、Ｐ d 側はＲ ff だけ増加
させて圧力を付与することにより、上下両端面に所望の
シール面圧が与えられる。 なお、摩擦力は前述の荷重検
出器の代りにサイド堰支持軸の曲げ検出器によって検知
するようにしてもよい。That is, due to frictional forceContact pressureChange
Make sure to maintain the desired seal surface pressure by correcting with the adjustment pressing force.
Thus, the side weir is pressed by the pressing means.This
In 上 above, the case of moment about the horizontal axis
The relationship between the frictional force and the pressing force will be described more specifically. Figure
In 1 and 2, the rotating cooling drums 1, 1
Weir 2 with equal pressing force P 1 , P Two When pressed with
The side weir 2 is opposed between the rams 1, 1 and the side weir 2.
Force F in the direction of pushing the cooling drums 1 and 1 1 , F Two
Works. Normally, this frictional force F 1 , F Two Is the cooling drum 1,1
Are not the same between Two Than F 1 But
Large), the side weir 2 has a support point P as a fulcrum, and the drum end face
A moment about a horizontal axis parallel to. That
As a result, the reaction force R 1 Side seal pressure is R f Only increase and reaction force
R Two Side seal pressure is R f Only decrease and poor sealing occurs
Live. In order to eliminate poor sealing, the difference in frictional force
(F 1 -F Two ), And the difference (F 1 -F Two )
Increase / decrease pressure R of seal surface pressure caused by f Ask for this
Increase / decrease pressure R f Adjust the pressing force of the side weir 2 according to
Good. Friction generated by moment about the horizontal axis
Friction difference (F 1 -F Two ) Is represented by equation (1). However, f1: load detected by the load detector (7-2) f2: load detected by the load detector (7-4) L: distance between the side weir support point (P) and the load detector L0: distance between the side weir support point (P) and the end face of the cooling drum Friction force difference (F 1 -F Two Pressure R caused by f
Is represented by equation (2). However, S; pressing force P 1 , P Two Distance between the positions to add Increase / decrease pressure R f Occurs, the pressing force P 1 And P Two Equals
Pressure, the seal surface pressure generated on the drum end face is
P 1 Side is R 1 + R f , P Two Side is R Two -R f Tona I mean, anti
Power is R 1 Side increases, R Two As the side decreases, the sealing surface
The pressure differs between the left and right ends. Seal pressure on both left and right sides
Are equalized by increasing and decreasing pressure R f Is calculated by equation (2).
And pressing force P 1 R on the side f Reduced by P Two R on the side f Is
To increase the pressure on the left side of the side weir.
A desired seal surface pressure is applied to both right end surfaces. Then, vertical
The case of a moment about the axis will be described. Figure
3, the rotation of the cooling drums 1 and 1
Between the dam 1 and the side weir 2, push the side weir 2 downward.
Frictional force F d Works. This friction force F d By
The side weir 2 has a support point P as a fulcrum and a vertical axis as a center.
Moment. As a result, the upper part of the side weir 2
Seal surface pressure is R ff And the lower seal surface pressure becomes R ff
And the sealing failure occurs. Eliminate seal failure
The friction force F d Is obtained by equation (3), and
Friction force F d Increase / decrease pressure R of seal surface pressure caused by ff To
The increase / decrease pressure R obtained by the equation (4) ff According to the side
What is necessary is just to adjust the pressing force of the weir 2. A model centered on the vertical axis
Frictional force F generated on the drum end face d Is
It is expressed by equation (3). However, f3: load detected by load detector (7-1) f4: Load detected by load detector (7-3) L: distance between the side weir support point (P) and the load detector L0: distance between the side weir support point (P) and the end face of the cooling drum Friction force F d Increase / decrease pressure R of seal surface pressure caused by
ff Is represented by equation (4). However, H; pressing force P u , P d Distance between the positions to add The pressing force P u Is the combination of the hydraulic cylinders 5-1 and 5-2.
This is the total pressing force. Increase / decrease pressure R as above ff Has arisen
And pressing force P u And P d Even if you press
The seal surface pressure generated at the end face is R u + R ff ,
The bottom sum is R d -R ff The surface pressure of the seal
Then R ff Only the difference of increase / decrease occurs. Equalize seal surface pressure
To increase or decrease pressure R ff Is calculated by equation (4),
Pressure P u The side is R ff Reduced by P d The side is R ff Only increase
By applying pressure, the desired
A seal surface pressure is provided. Note that the frictional force is
Detected by the bending detector on the side weir support shaft instead of the ejector
You may make it.
【００１４】[0014]
【発明の効果】以上述べた如く、本発明によれば、摩擦
力の外乱の影響を受けることなく、所望のシール面圧で
ある溶湯のシールに必要な最小限の密接圧力を常時維持
することが可能となり、サイド堰の片減り現象、シール
面圧不足による湯漏れを回避することができるので、長
時間の鋳造が安定して継続できるという優れた効果を有
する。As described above, according to the present invention, it is possible to always maintain a minimum close contact pressure required for sealing a molten metal at a desired sealing surface pressure without being affected by disturbance of frictional force. This makes it possible to avoid the phenomenon of side damping of the side dam and leakage of hot water due to insufficient sealing surface pressure, and thus has an excellent effect that long-time casting can be stably continued.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の一実施例を示す一部断面平面図であ
る。FIG. 1 is a partially sectional plan view showing an embodiment of the present invention.
【図２】図１Ｘ−Ｘ線断面図である。FIG. 2 is a sectional view taken along line XX of FIG. 1;
【図３】FIG. 3
本発明の一実施例を示す一部断面正面図であFIG. 2 is a partial cross-sectional front view showing one embodiment of the present invention.
る。You.
【図４】従来の連鋳機を示す概略側面図である。FIG. 4 is a schematic side view showing a conventional continuous casting machine.
１…冷却ドラム ２…サイド堰 ３…サイド堰支持軸 ４…押圧器 ４−１〜４−３…ロッド ５−１〜５−３…油圧シリンダー ６…サイド堰支持軸シリンダー ７−１〜７−４…荷重検出器 ８…基盤 ９…摩擦力演算装置 10…押圧力加減演算装置 11−１〜11−３…押圧力駆動制御装置 DESCRIPTION OF SYMBOLS 1 ... Cooling drum 2 ... Side weir 3 ... Side weir support shaft 4 ... Presser 4-1 to 4-3 ... Rod 5-1 to 5-3 ... Hydraulic cylinder 6 ... Side weir support shaft cylinder 7-1 to 7- 4: Load detector 8: Base 9: Friction force calculation device 10: Pressing force calculation device 11-1 to 11-3: Pressing force drive control device
フロントページの続き (56)参考文献 特開 昭63−177944（ＪＰ，Ａ) 特開 昭63−36954（ＪＰ，Ａ) 特開 昭64−83337（ＪＰ，Ａ) 特開 平３−230848（ＪＰ，Ａ) 特開 平４−46656（ＪＰ，Ａ) 特開 昭64−34545（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B22D 11/06Continuation of the front page (56) References JP-A-63-177944 (JP, A) JP-A-63-36954 (JP, A) JP-A-64-83337 (JP, A) JP-A-3-230848 (JP) JP-A-4-46656 (JP, A) JP-A-64-34545 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) B22D 11/06
Claims (3)
ぞれサイド堰を押圧して構成した湯溜り部へ溶湯を注入
し、前記冷却ドラムの回転により前記溶湯を冷却して連
続的に薄鋳片を鋳造するに際し、前記冷却ドラムの軸方
向両端面と前記サイド堰との間に生じた摩擦力を求め、
該摩擦力に起因するサイド堰押圧力の増減圧力を求め、
しかる後該増減圧力に応じて調整された押圧力によって
前記サイド堰を前記冷却ドラムの軸方向両端面へ押圧す
ることを特徴とする薄鋳片の連続鋳造機におけるサイド
堰押圧力制御方法。1. A molten metal is injected into a pool formed by pressing side weirs on both axial end surfaces of a pair of cooling drums, and the molten metal is cooled by rotation of the cooling drum to continuously cast thin casting. upon casting the pieces to obtain the frictional force generated between the side weirs and the axial end surfaces of said cooling drums,
Obtain the increase / decrease pressure of the side dam pushing pressure caused by the frictional force,
Side weirs pressing force control method in a thin slab continuous casting machine, characterized in that for pressing the side weirs to the axial end surfaces of the cooling drum by a pressing force which is adjusted according Thereafter the increase or decrease pressure.
方向両端面に押圧して設けたサイド堰とによって湯溜り
部を形成し、該湯溜り部内の溶湯を冷却ドラムの回転に
よって冷却しつゝ連続的に薄鋳片を鋳造する双ドラム式
連続鋳造機において、前記サイド堰の支持部分に該サイ
ド堰と前記冷却ドラムの両端面との間に生ずる摩擦力と
相関をもつ荷重を検出する荷重検出器を設け、更に該検
出器による検出値より摩擦力を演算する摩擦力演算装置
と該摩擦力によるサイド堰押圧力の増減圧力を演算する
押圧力加減演算装置と該増減圧力信号に応じて調整され
た調整圧力信号を出力する押圧力駆動制御装置を設け、
かつ該押圧力駆動制御装置からの調整圧力信号によって
駆動される押圧器を前記サイド堰に設けたことを特徴と
する薄鋳片の連続鋳造機におけるサイド堰押圧力制御装
置。2. A basin is formed by a pair of cooling drums and side weirs pressed against both axial end surfaces of the cooling drum, and the molten metal in the basin is cooled by rotation of the cooling drum. In a twin-drum continuous caster for continuously casting thin slabs, a frictional force generated between the side weir and both end faces of the cooling drum at a support portion of the side weir is provided.
A load detector for detecting a load with the correlation provided, the pressing force and subtraction device for calculating the increase and decrease pressure of the side dam pressing force by the frictional force calculating unit and the frictional force further calculates the frictional force from the detection value by the detector And adjusted according to the increase / decrease pressure signal
Pressure control drive device that outputs the adjusted pressure signal ,
And a pusher driven by an adjustment pressure signal from the pusher drive controller is provided in the side weir, the side dam pusher control device in the continuous casting machine for thin cast pieces.
た荷重検出器である請求項２記載の制御装置。3. The control device according to claim 2, wherein the load detector is a load detector provided on a side weir support shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2406593A JP2831136B2 (en) | 1990-12-26 | 1990-12-26 | Method and apparatus for controlling side dam pressing force in continuous casting machine for thin slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2406593A JP2831136B2 (en) | 1990-12-26 | 1990-12-26 | Method and apparatus for controlling side dam pressing force in continuous casting machine for thin slab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04224052A JPH04224052A (en) | 1992-08-13 |
| JP2831136B2 true JP2831136B2 (en) | 1998-12-02 |
Family
ID=18516218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2406593A Expired - Lifetime JP2831136B2 (en) | 1990-12-26 | 1990-12-26 | Method and apparatus for controlling side dam pressing force in continuous casting machine for thin slab |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2831136B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2721843B1 (en) * | 1994-06-30 | 1996-08-30 | Unisor Sacilor | CONTINUOUS CASTING ARRANGEMENT BETWEEN CYLINDERS WITH APPLIED SIDE SHUTTER WALLS |
| FR2721844B1 (en) * | 1994-06-30 | 1996-08-30 | Usinor Sacilor | METHOD AND DEVICE FOR CONTINUOUSLY CASTING THIN METAL PRODUCTS BETWEEN CYLINDERS |
| CH691574A5 (en) | 1999-09-24 | 2001-08-31 | Main Man Inspiration Ag | The strip casting machine for producing a metal strip. |
| KR100954797B1 (en) * | 2007-12-20 | 2010-04-28 | 주식회사 포스코 | Method of edge dam load controlling in twin roll strip caster |
| CN105562639B (en) * | 2016-02-26 | 2018-10-02 | 宝山钢铁股份有限公司 | A kind of thin-strip casting side sealing plate long-life application method |
-
1990
- 1990-12-26 JP JP2406593A patent/JP2831136B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04224052A (en) | 1992-08-13 |
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Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980818 |