JPH0461733B2 - - Google Patents
Info
- Publication number
- JPH0461733B2 JPH0461733B2 JP15727285A JP15727285A JPH0461733B2 JP H0461733 B2 JPH0461733 B2 JP H0461733B2 JP 15727285 A JP15727285 A JP 15727285A JP 15727285 A JP15727285 A JP 15727285A JP H0461733 B2 JPH0461733 B2 JP H0461733B2
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- wall
- cylinder device
- vibration
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 238000005266 casting Methods 0.000 claims description 16
- 238000009749 continuous casting Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は連続鋳造設備における溶鋼受の振動装
置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vibration device for a molten steel receiver in continuous casting equipment.
従来の技術
従来、薄板を連続鋳造により製造する場合、溶
鋼は一旦溶鋼受（タンデイシユ）に入れられた
後、その下方に配置された移動モールドによつて
冷却されると共に所定方向に引抜かれていた。Conventional technology Conventionally, when manufacturing thin plates by continuous casting, molten steel was once placed in a tundish, cooled by a moving mold placed below the tundish, and then drawn out in a predetermined direction. .
ところで、通常、溶鋼受けは、所定位置で固定
されているため、モールドの出口において鋳片が
ブレークアウト（破断）するという問題があつ
た。この様子を第１０図に基づいて説明する。な
お、図中において、４１は耐火物で構成された溶
鋼受、４２は溶鋼受４１の下方に且つ矢印Ｂ方向
に移動される移動モールドである。まず、始め
に、イに示すように、溶鋼受４１表面に壁シエル
４３が、モールド４２表面に鋳片シエル４４がそ
れぞれ生成するが、これら両シエル４３，４４
は、ロからハに示すように、コーナ部において互
いに接着する。この状態でモールド４２が移動す
ると、ニに示すように、鋳片シエル４４側のコー
ナ部寄り付近が破断し、ホに示すように、この破
断部に溶鋼４５が流入して互いに接着するが、モ
ールド４２の移動により、ヘに示すように、再び
破断する。そして、トからチに示すように、上記
同様の状態即ち破断への溶鋼４６の流入、モール
ド４２の移動による破断が繰返されて最終的にモ
ールド出口において、鋳片がブレークアウトす
る。これは、コーナ部において、鋳片シエル４４
が壁シエル４３によつて拘束されるために生じ
る。 By the way, since the molten steel receiver is usually fixed at a predetermined position, there is a problem in that the slab breaks out at the exit of the mold. This situation will be explained based on FIG. 10. In the figure, 41 is a molten steel receiver made of refractory material, and 42 is a movable mold that is moved below the molten steel receiver 41 in the direction of arrow B. First, as shown in A, a wall shell 43 is generated on the surface of the molten steel receiver 41 and a slab shell 44 is generated on the surface of the mold 42.
are adhered to each other at the corner portions as shown in (b) to (c). When the mold 42 moves in this state, as shown in D, the area near the corner of the slab shell 44 breaks, and as shown in E, the molten steel 45 flows into this broken part and adheres to each other. As the mold 42 moves, it breaks again as shown in F. Then, as shown in FIGS. 1 to 1, the same state as described above, that is, the inflow of molten steel 46 to the fracture and the fracture due to the movement of the mold 42 are repeated, and finally the slab breaks out at the mold outlet. This is because the slab shell 44
This occurs because the wall shell 43 constrains the wall shell 43.
そこで、本発明者等は、溶鋼受の壁面即ち鋳片
の引抜き方向に対向する壁体を振動させて、鋳片
シエルを拘束する壁シエルを、強制的に鋳片シエ
ル側に凝固接着させれば、常に生成する壁シエル
が薄くなり、ブレークアウトの発生を防止できる
ことを見出した。 Therefore, the present inventors vibrated the wall surface of the molten steel receiver, that is, the wall facing the direction of drawing out the slab, to forcibly solidify and adhere the wall shell that restrains the slab shell to the slab shell side. For example, we have found that the constantly generated wall shell becomes thinner, thereby preventing the occurrence of breakouts.
ところで、従来、溶鋼受のような重量物を振動
させる振動装置として回転式即ち円運動を直線運
動に変換するものがある。 By the way, conventionally, as a vibrating device for vibrating a heavy object such as a molten steel receiver, there is a vibrating device that converts rotational motion, that is, circular motion into linear motion.
発明が解決しようとする問題点
上記従来の回転式振動装置によると、下記のよ
うな問題がある。即ち、回転式であるため、その
振動波形はサインカーブとなり、これに対してモ
ールドの振動速度は一定である。従つて、ある時
においては、モールドの移動速度より壁体の前進
速度が早くなり、移動モールド上に生成した鋳片
シエルを押しつぶし、鋳片表面に欠陥が生じると
いう問題がある。この問題を解決する方法とし
て、新しく生成した壁シエルが前に生成付着した
移動モールド上の鋳片シエルを押しつぶすことな
く、互いに凝固接着させて鋳片シエルをきれいに
連続させること、及び壁体の後退にはどきるだけ
早く後退して、壁体表面に生成する壁シエルの厚
みをできるだけ薄くすることである。Problems to be Solved by the Invention According to the above-mentioned conventional rotary vibration device, there are the following problems. That is, since it is a rotary type, its vibration waveform is a sine curve, whereas the vibration speed of the mold is constant. Therefore, at certain times, the advancing speed of the wall becomes faster than the moving speed of the mold, which causes a problem in that the slab shell formed on the moving mold is crushed, resulting in defects on the slab surface. As a way to solve this problem, the newly generated wall shell does not crush the previously generated slab shell on the moving mold, but solidifies and adheres to each other so that the slab shell continues neatly, and the wall recedes. The goal is to retreat as quickly as possible to make the thickness of the wall shell that forms on the wall surface as thin as possible.
そこで、本発明は上記問題を解消し得る連続鋳
造設備における溶鋼受の振動装置を提供すること
を目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vibration device for a molten steel receiver in continuous casting equipment that can solve the above-mentioned problems.
問題を解決するための手段
上記問題を解消するため、本発明の連続鋳造設
備における溶鋼受の振動装置は、所定方向で移動
可能に設けられた移動モールドの上方に配置され
ると共に溶鋼受本体の少なくとも上記移動モール
ドの移動方向と直角方向の壁体が移動方向におい
て振動可能に配置された溶鋼受の振動装置であつ
て、上記振動可能にされた壁体に連結されたシリ
ンダー装置と、該シリンダー装置に圧油を供給す
る油圧配管と、該油圧配管途中に介装されたサー
ボバルブと、上記油圧配管の圧供給側に介装され
た流量制御弁と、鋳造速度信号を入力して上記シ
リンダー装置のピストンロツドの移動速度及びス
トローク量を演算すると共にこれら演算値に基づ
いて上記サーボバルブ及び流量制御弁に制御信号
を出力する演算処理部とから構成したものであ
る。Means for Solving the Problem In order to solve the above problem, the vibration device for the molten steel receiver in the continuous casting equipment of the present invention is arranged above a movable mold that is movable in a predetermined direction, and is arranged above the movable mold that is movable in a predetermined direction. A vibrating device for a molten steel receiver, in which a wall body in a direction perpendicular to the moving direction of the movable mold is arranged to be able to vibrate in the moving direction, the cylinder device being connected to the vibrating wall body; A hydraulic pipe that supplies pressure oil to the device, a servo valve installed in the middle of the hydraulic pipe, a flow control valve installed on the pressure supply side of the hydraulic pipe, and a casting speed signal input to the cylinder. The apparatus comprises a calculation processing section that calculates the moving speed and stroke amount of the piston rod of the device and outputs control signals to the servo valve and flow control valve based on these calculated values.
作 用
移動モールドより連続的に鋳片を引抜く際に、
壁体をシリンダー装置により振動させるのである
が、壁体を前方に押出す時には、移動モールドの
速度に略一致させて、移動モールド上に形成され
た鋳片シエルを壁体表面に生成した壁シエルで押
しつぶさないように遅く前進させ、また壁体を後
方に引く時には、壁体表面に生成る壁シエルの厚
みができるだけ薄くなるように早く後退させる。
上記の制御は、演算処理部からの鋳造速度に見合
つた制御信号（ピストンロツドの移動速度及びス
トローク量）がサーボバルブ及び演算制御弁に出
力されて行なわれる。Function When continuously pulling slabs from the moving mold,
The wall is vibrated by a cylinder device, and when pushing the wall forward, the speed is approximately matched to the speed of the moving mold, so that the slab shell formed on the moving mold is vibrated to the wall shell formed on the wall surface. The wall is moved slowly forward so as not to be crushed, and when the wall is pulled back, it is moved back quickly so that the thickness of the wall shell formed on the wall surface is as thin as possible.
The above control is performed by outputting a control signal (moving speed and stroke amount of the piston rod) commensurate with the casting speed from the arithmetic processing section to the servo valve and the arithmetic control valve.
実施例
以下、本発明の一実施例を第１図〜第８に基づ
き説明する。第１図及び第２図において、１は前
後一対の駆動ローラ２Ａ，２Ｂ間に傾斜状態で無
端状に巻回されたベルト状の移動モールドで、矢
印Ａで示すように前方向に移動される。３は駆動
ローラ２Ａ，２Ｂ間位置でしかも上側移動モール
ド１の下面に沿つて配置された所定長さの冷却箱
（水冷ボツクス）で、支持体４によつて支持され
ている。５は冷却箱３に対応する上側移動モール
ド１上面上に配置された溶鋼受本体で、本発明に
係る振動装置６に接続されて移動モールド１上で
移動方向に沿つて振動される様に設けられてい
る。即ち、溶鋼受本体５は、移動方向に沿う左右
の側壁５ａ，５ａと、これら両側壁５ａ，５ａの
後端に亘つて設けられた移動方向と直角方向の後
壁（壁体）５ｂと、各側壁５ａ，５ａから水平方
向に突設されると共に、先端に、支持体４に形成
された移動方向の溝４ａ内を摺動可能されたガイ
ド部７ａがそれぞれ形成されたガイド板７と、ガ
イド板７を支持体４側に押圧付勢するコイルばね
８とから構成されている。このコイルばね８によ
つて溶鋼受本体５の浮上りが防止されている。な
お、９はコイルばね８取付用の取付ボルトで、支
持体４とガイド板７とを貫通して設けられると共
に、溶鋼受本体５が振動しても問題がないよう
に、それぞれの貫通穴（図示せず）は大きくされ
ているか又は長穴にされている。上記振動装置６
は、第３図に示すように、片ロツド式のシリンダ
ー装置１０と、このシリンダー装置１０のピスト
ンロツド１１と上記溶鋼受本体５の後壁５ｂとを
連結すると共に支持体４又は溶鋼受本５側に取付
けられた支持ブラケツト１２に挿通支持された連
結ロツド１３と、支持ブラケツト１２の連結ロツ
ド１３の両側に装着されて連結ロツド１３を所定
の中立位置に戻すように付勢する一対の圧縮ばね
１４と、上記シリンダー装置１０を介して溶鋼受
本体５の後壁５ｂの振動を制御するための制御装
置１５とから構成されている。上記制御装置１５
は、シリンダー装置１０に圧油を供給する油圧配
管１６と、この油圧配管１６途中に介装されたサ
ーボバルブ１７と、このサーボバルブ１７より上
流側の油圧供給側ライン１６ａに介装された流量
制御弁１８と、上記サーボバルブ１７及び流量制
御弁１８に制御信号を出力する演算処理部１９
と、この演算処理部１９からサーボバルブ１７へ
の信号系路途中に介装された信号発生器２０及び
駆動アンプ２１と、演算処理部１９から流量制御
弁１８への信号系路途中に介装された駆動アンプ
２２とから構成されている。また、上記演算処理
部１９は、鋳造速度信号を入力してこれに見合う
ピストンロツド１１の移動速度及びそのストロー
ク量を演算すると共に、この演算値に基づいて上
記サーボバルブ１７及び流量制御弁１８に制御信
号を出力するものである。Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 8. In FIGS. 1 and 2, reference numeral 1 denotes a belt-shaped movable mold that is wound endlessly in an inclined state between a pair of front and rear drive rollers 2A and 2B, and is moved forward as shown by arrow A. . Reference numeral 3 denotes a cooling box (water cooling box) of a predetermined length, which is disposed between the drive rollers 2A and 2B and along the lower surface of the upper movable mold 1, and is supported by a support 4. Reference numeral 5 denotes a molten steel receiving body disposed on the upper surface of the upper movable mold 1 corresponding to the cooling box 3, which is connected to a vibration device 6 according to the present invention and is arranged to be vibrated on the movable mold 1 along the moving direction. It is being That is, the molten steel receiver main body 5 has left and right side walls 5a, 5a along the moving direction, and a rear wall (wall body) 5b in a direction perpendicular to the moving direction, which is provided across the rear ends of these both side walls 5a, 5a. A guide plate 7 that protrudes horizontally from each side wall 5a, 5a, and has a guide portion 7a formed at its tip, which is slidable in a groove 4a in the movement direction formed in the support 4; It is composed of a coil spring 8 that presses and urges the guide plate 7 toward the support body 4 side. This coil spring 8 prevents the molten steel receiver body 5 from floating up. Reference numeral 9 denotes a mounting bolt for mounting the coil spring 8, which is provided through the support body 4 and the guide plate 7, and is provided in each through hole ( (not shown) are enlarged or slotted. The vibration device 6
As shown in FIG. 3, a single-rod type cylinder device 10, a piston rod 11 of this cylinder device 10, and a rear wall 5b of the molten steel receiver body 5 are connected, and the support body 4 or the molten steel receiver 5 side is connected to each other. A connecting rod 13 is inserted through and supported by a support bracket 12 attached to the support bracket 12, and a pair of compression springs 14 are attached to both sides of the connecting rod 13 of the support bracket 12 to urge the connecting rod 13 to return to a predetermined neutral position. and a control device 15 for controlling the vibration of the rear wall 5b of the molten steel receiving body 5 via the cylinder device 10. The control device 15
are a hydraulic piping 16 that supplies pressure oil to the cylinder device 10, a servo valve 17 installed in the middle of this hydraulic piping 16, and a flow rate installed in a hydraulic supply line 16a upstream from this servo valve 17. a control valve 18 and an arithmetic processing unit 19 that outputs control signals to the servo valve 17 and flow control valve 18;
The signal generator 20 and drive amplifier 21 are interposed in the signal path from the arithmetic processing section 19 to the servo valve 17, and the signal generator 20 and drive amplifier 21 are interposed in the signal path from the arithmetic processing section 19 to the flow rate control valve 18. and a drive amplifier 22. Further, the arithmetic processing section 19 inputs the casting speed signal and calculates the moving speed and stroke amount of the piston rod 11 commensurate with the casting speed signal, and controls the servo valve 17 and the flow control valve 18 based on this calculated value. It outputs a signal.
次に、作用について説明する。 Next, the effect will be explained.
第１図に示すように、レードル２３より溶鋼受
本体５内に溶鋼２４が注入れると共に冷却箱３に
水が通され、且つ後壁５ｂを介して振動装置６に
より溶鋼受本体５が振動されている状態におい
て、移動モールド１が矢印Ａ方向に移動される
と、鋳片２５が連続的に引抜かれて薄板が形成さ
れる。この時後壁５ｂはシリンダー装置１０によ
り、第４図に示すように移動される。即ち、後壁
５ｂを前方に押出す時には、移動モールド１の速
度に略一致させて、移動モールド１上に形成され
た鋳片シエルを後壁５ｂ表面に形成した壁シエル
で押しつぶさないように遅く前進させ（イ状態）、
また後壁５ｂを後方に引く時には、後壁５ｂ表面
に生成する壁シエルの厚みができるだけ薄くなよ
うに早く後退させる（ロ状態）。ところで、後壁
５ｂの振動数（Hz）と移動モールド１の速度（鋳
造速度）Ｖとの関係は、近似的に下記式のよう
に表わされる。 As shown in FIG. 1, molten steel 24 is injected into the molten steel receiver body 5 from the ladle 23, water is passed through the cooling box 3, and the molten steel receiver body 5 is vibrated by the vibration device 6 via the rear wall 5b. In this state, when the movable mold 1 is moved in the direction of arrow A, the slab 25 is continuously pulled out to form a thin plate. At this time, the rear wall 5b is moved by the cylinder device 10 as shown in FIG. That is, when pushing the rear wall 5b forward, the speed is made substantially equal to the speed of the movable mold 1, and the speed is slowed so as not to crush the slab shell formed on the movable mold 1 with the wall shell formed on the surface of the rear wall 5b. Move it forward (I state),
Further, when the rear wall 5b is pulled rearward, it is quickly retreated so that the thickness of the wall shell formed on the surface of the rear wall 5b is as thin as possible (state B). Incidentally, the relationship between the frequency (Hz) of the rear wall 5b and the speed (casting speed) V of the movable mold 1 is approximately expressed by the following equation.
Ｖ×ａ＝１／２×Ｓ×Hz ……
Ｓストローク
ａ：鋳造状態による係数
上記式中のａは１より大きい場合と、０と１と
の間の場合がある。前者の場合は、鋳片シエルを
壁シエルで押しつぶす状態を意味し、後者の場合
は、鋳片シエルを押しつぶさない状態を意味して
いる。従つて、通常、ａは０と１との間の範囲に
ある。 V×a=1/2×S×Hz... S stroke a: Coefficient depending on casting state In the above formula, a may be larger than 1 or between 0 and 1. The former case means that the slab shell is crushed by the wall shell, and the latter case means that the slab shell is not crushed. Therefore, typically a ranges between 0 and 1.
以下、実際の制御について説明する。 The actual control will be explained below.
まず、演算処理部１９において、移動モールド
１の速度即ち鋳造速度信号が入力されてピストン
ロツド１１のストローク量が決定される。この決
定は、あらかじめ、鋳造鋼種、製鋼炉からの出鋼
温度等によつて決められた種々のパターンより行
なわれる。第５図に３種類のパターンを示す。な
お、このパターンは上記式中のａがある一定値
例えば0.5となるようにした場合の鋳造速度とス
トロークとの関係を示すものである。例えば
（）のパターンは鋼種が普通炭素鋼で、溶鋼温
度が高い場合を示している。また、（）のパタ
ーンは、鋼種が合金鋼や高級鋼で、溶鋼温度が低
い場合を示している。 First, in the arithmetic processing section 19, the speed of the movable mold 1, that is, the casting speed signal is input, and the stroke amount of the piston rod 11 is determined. This determination is made in advance based on various patterns determined based on the type of steel to be cast, the temperature at which the steel is tapped from the steelmaking furnace, and the like. FIG. 5 shows three types of patterns. Note that this pattern shows the relationship between casting speed and stroke when a in the above formula is set to a certain constant value, for example 0.5. For example, the pattern in parentheses indicates a case where the steel type is ordinary carbon steel and the molten steel temperature is high. Moreover, the pattern in parentheses indicates a case where the steel type is alloy steel or high-grade steel and the molten steel temperature is low.
ここで、係数ａが0.5、鋳造速度が1.2m／min、
ストローク量が0.5mmにそれぞれ決定されたとす
る。すると、振動係数（Hz）が下記式（式を
変形したもの）によつて定まる。 Here, the coefficient a is 0.5, the casting speed is 1.2 m/min,
Assume that the stroke amount is determined to be 0.5 mm. Then, the vibration coefficient (Hz) is determined by the following formula (a modified version of the formula).
Hz＝２×ａ×Ｖ／Ｓ＝２×0.5×20／0.5＝401／sec
……
なお、鋳造速度に比例して振動数は増加する
が、第６図に示ように、振動数の上限と下限が設
定されている。 Hz=2×a×V/S=2×0.5×20/0.5=401/sec... The frequency increases in proportion to the casting speed, but as shown in Figure 6, the upper limit of the frequency A lower limit is set.
こうして、振動数（これはピストンロツドの移
動速度に相当する。）が決定されると次にシリン
ダー装置１０に供給される油量が計算される。 Once the frequency of vibration (which corresponds to the moving speed of the piston rod) is thus determined, the amount of oil to be supplied to the cylinder device 10 is then calculated.
即ち、シリンダー内径を40mm、ロツド径を28mm
とする。なお、このシリンダー内径は、溶鋼受本
体５の後壁５ｂの摺動抵抗力と溶鋼から受ける圧
力との合計負荷に十分打勝てるような大きさにさ
れる。従つて、ピストンロツド１１の往復移動即
ち１サイクルに必要な油量は、
π／４×402×0.5＋π／４（402−282）×0.5＝936mm
3
となる。これを１分間の油量に換算すると
2.246l／min.になる。そして、上記の振動数の信
号が信号発生器２０に出力され、ここで所定の信
号波形例えば第７図に示すような信号波形が駆動
アンプ２１を介してサーボバルブ１７に出力され
る。第７図中、T1が押しストローク時を示し、
T2が引きストローク時を示す。また、上記の油
量の信号が駆動アンプ２２を介して流量制御弁１
８の駆動モータ部１８ａに出力される。この場
合、押しストローク時及び引きストローク時の流
量は、シリンダー装置が片ロツド式であるため、
別に異ならせる必要がなく、ロツド部分の面積差
によつて押し引き時の速度差が生じる。従つて、
両ロツド式の場合には、演算処理部１９からの制
御信号によつて押し引き時それぞれにおいて流量
制御を行なう必要が生じる。なお、第８図に上記
の制御フローを示す。 That is, the cylinder inner diameter is 40mm and the rod diameter is 28mm.
shall be. The inner diameter of this cylinder is made large enough to overcome the total load of the sliding resistance of the rear wall 5b of the molten steel receiving body 5 and the pressure received from the molten steel. Therefore, the amount of oil required for the reciprocating movement of the piston rod 11, that is, one cycle, is: π/4×40 2 ×0.5 + π/4 (40 2 −28 2 )×0.5 = 936 mm
It becomes 3 . Converting this to the amount of oil per minute
It becomes 2.246l/min. Then, a signal having the above frequency is outputted to the signal generator 20, where a predetermined signal waveform, for example, a signal waveform as shown in FIG. 7 is outputted to the servo valve 17 via the drive amplifier 21. In Figure 7, T 1 indicates the push stroke,
T 2 indicates the pull stroke. Further, the above-mentioned oil amount signal is transmitted to the flow control valve 1 via the drive amplifier 22.
8 is output to the drive motor section 18a. In this case, since the cylinder device is a single rod type, the flow rate during the push stroke and pull stroke is
There is no need to make a difference, and a difference in speed during pushing and pulling occurs due to the difference in area of the rod portion. Therefore,
In the case of the double rod type, it is necessary to control the flow rate at each time of pushing and pulling using a control signal from the arithmetic processing section 19. Incidentally, FIG. 8 shows the above control flow.
ところで、上記のように設定された状態から鋳
造速度が変化すると、その鋳造速度に合わせてピ
ストンロツド１１の移動速度及び必要油量が自動
的に変更される。 By the way, when the casting speed changes from the state set as described above, the moving speed of the piston rod 11 and the required amount of oil are automatically changed in accordance with the casting speed.
ところで、上記実施例においては、鋳片を傾斜
した移動モールドにより引抜く場合に適用した
が、例えば水平方向に引抜く場合、及び第９図に
示すように、ツインロール型モールドによつて引
抜く場合にも適用し得る。この場合、溶鋼受本体
３１の長辺堰３２の下端部３２ａがシリンダー装
置３３によつて振動される。 By the way, in the above embodiment, the slab was pulled out using an inclined moving mold, but it could also be pulled out horizontally, for example, or pulled out using a twin-roll type mold, as shown in FIG. It can also be applied to cases. In this case, the lower end 32a of the long side weir 32 of the molten steel receiving body 31 is vibrated by the cylinder device 33.
発明の効果
上記本発明の構成によると、溶鋼受本体の壁体
を振動させるシリンダー装置のピストンロツドの
移動速度及びストローク量を制御する演算処理部
を設けたので、例えば壁体を前方に押出す時には
鋳造速度に合わせてゆつくり移動させ、また壁体
を後方に引く時には早く移動させることができ、
従つて壁シエルによる鋳片シエルの押しつぶし作
用がなくなると共に壁体表面に生成する壁シエル
の厚みを薄くすることができるので、鋳造された
鋳片は欠陥がなく良好な品質となる。Effects of the Invention According to the above configuration of the present invention, since a calculation processing unit is provided that controls the moving speed and stroke amount of the piston rod of the cylinder device that vibrates the wall of the molten steel receiving body, for example, when pushing the wall forward, It can be moved slowly according to the casting speed, and can be moved quickly when pulling the wall backwards.
Therefore, the crushing effect of the wall shell on the slab shell is eliminated, and the thickness of the wall shell formed on the wall surface can be reduced, so that the cast slab is free of defects and of good quality.
第１図〜第８図は本発明の一実施例を示すもの
で、第１図は全体断面図、第２図は第１図の−
矢視図、第３図は振動装置の構成を示す図、第
４は後壁の移動状態を示すグラフ図、第５図は鋳
造速度とストロークとの関係を示すパターン図、
第６図は鋳造速度と振動との関係を示すグラフ
図、第７図はサーボバルブの制御タイムチヤート
図、第８図は演算処理フロー図、第９図は他の実
施例の断面図、第１０図は従来における作用説明
図である。
１……移動モールド、５……溶鋼受本体、５ｂ
……後壁（壁体）、６……振動装置、１０……シ
リンダー装置、１１……ピストンロツド、１５…
…制御装置、１６……油圧配管、１６ａ……圧油
供給側ライン、１７……サーボバルブ、１８……
流量制御弁、１９……演算処理部、２０……信号
発生器。
1 to 8 show one embodiment of the present invention, FIG. 1 is an overall sectional view, and FIG. 2 is a -
3 is a diagram showing the configuration of the vibrating device, 4th is a graph showing the movement state of the rear wall, and 5 is a pattern diagram showing the relationship between casting speed and stroke.
Fig. 6 is a graph showing the relationship between casting speed and vibration, Fig. 7 is a servo valve control time chart, Fig. 8 is a calculation processing flow chart, Fig. 9 is a sectional view of another embodiment, and Fig. 9 is a sectional view of another embodiment. FIG. 10 is an explanatory diagram of the conventional operation. 1...Moving mold, 5... Molten steel receiving body, 5b
... Rear wall (wall body), 6 ... Vibration device, 10 ... Cylinder device, 11 ... Piston rod, 15 ...
...Control device, 16...Hydraulic piping, 16a...Pressure oil supply side line, 17...Servo valve, 18...
Flow rate control valve, 19... Arithmetic processing unit, 20... Signal generator.
Claims (1)
ドの上方に配置されると共に溶鋼受本体の少なく
とも上記移動モールドの移動方向と直角方向の壁
体が移動方向において振動可能に配置された溶鋼
受の振動装置であつて、上記振動可能にされた壁
体に連結されたシリンダー装置と、該シリンダー
装置に圧油を供給する油圧配管と、該油圧配管途
中に介装されたサーボバルブと、上記油圧配管の
圧油供給側に介装された流量制御弁と、鋳造速度
信号を入力して上記シリンダー装置のピストンロ
ツドの移動速度及びストローク量を演算すると共
にこれら演算値に基づいて上記サーボバルブ及び
流量制御弁に制御信号を出力する演算処理部とか
ら構成したことを特徴とする連続鋳造設備におけ
る溶鋼受の振動装置。1. Vibration of a molten steel receiver that is arranged above a movable mold that is movable in a predetermined direction, and in which at least a wall of the molten steel receiver body in a direction perpendicular to the moving direction of the movable mold is arranged so that it can vibrate in the moving direction. The device includes a cylinder device connected to the wall body that is made vibrated, a hydraulic pipe that supplies pressure oil to the cylinder device, a servo valve interposed in the middle of the hydraulic pipe, and the hydraulic pipe. A flow control valve installed on the pressure oil supply side of the cylinder device inputs a casting speed signal to calculate the moving speed and stroke amount of the piston rod of the cylinder device, and also controls the servo valve and the flow control valve based on these calculated values. 1. A vibration device for a molten steel receiver in a continuous casting facility, characterized in that the vibration device comprises a calculation processing section that outputs a control signal to the molten steel receiver.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727285A JPS6216853A (en) | 1985-07-17 | 1985-07-17 | Oscillating device for molten steel receiver of continuous casting installation |
| US06/857,921 US4694885A (en) | 1985-06-06 | 1986-04-30 | Apparatus for continuous casting of thin metallic plate |
| DE19863616055 DE3616055A1 (en) | 1985-06-06 | 1986-05-13 | CONTINUOUS CASTING DEVICE FOR THIN METAL PLATES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15727285A JPS6216853A (en) | 1985-07-17 | 1985-07-17 | Oscillating device for molten steel receiver of continuous casting installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6216853A JPS6216853A (en) | 1987-01-26 |
| JPH0461733B2 true JPH0461733B2 (en) | 1992-10-01 |
Family
ID=15646026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15727285A Granted JPS6216853A (en) | 1985-06-06 | 1985-07-17 | Oscillating device for molten steel receiver of continuous casting installation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6216853A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07106434B2 (en) * | 1991-03-15 | 1995-11-15 | 新日本製鐵株式会社 | Continuous casting method for metal ribbon |
| KR101264232B1 (en) * | 2009-12-28 | 2013-05-14 | 주식회사 포스코 | Apparatus and method for controlling horizontal oscillation of edge dam in twin roll strip caster |
-
1985
- 1985-07-17 JP JP15727285A patent/JPS6216853A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6216853A (en) | 1987-01-26 |
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