JP3130053B2 - How to optimize the surface quality of continuous castings - Google Patents
How to optimize the surface quality of continuous castingsInfo
- Publication number
- JP3130053B2 JP3130053B2 JP09534837A JP53483797A JP3130053B2 JP 3130053 B2 JP3130053 B2 JP 3130053B2 JP 09534837 A JP09534837 A JP 09534837A JP 53483797 A JP53483797 A JP 53483797A JP 3130053 B2 JP3130053 B2 JP 3130053B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- continuous casting
- casting
- continuous
- friction
- 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
- 238000009749 continuous casting Methods 0.000 title claims abstract description 49
- 238000005266 casting Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 21
- 229910001208 Crucible steel Inorganic materials 0.000 claims abstract description 5
- 238000011156 evaluation Methods 0.000 claims abstract description 3
- 230000001050 lubricating effect Effects 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract 3
- 239000002893 slag Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 51
- 239000002904 solvent Substances 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/165—Controlling or regulating processes or operations for the supply of casting powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/166—Controlling or regulating processes or operations for mould oscillation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Devices For Molds (AREA)
- Formation And Processing Of Food Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Mold Materials And Core Materials (AREA)
- General Factory Administration (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、連続鋳造装置で鋳造された連続鋳造鋼材
（以下、単に連鋳鋼材という）の表面品質を最適化する
方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for optimizing the surface quality of a continuously cast steel material (hereinafter, simply referred to as a continuously cast steel material) cast by a continuous casting device.
連続鋳造機で連鋳鋼材を鋳造する場合に、連続鋳造材
（以下、単に連鋳材という）は、通常、一定の引抜き速
度で搬出される。鋳型の中の鋳造溶融金属液面のレベル
は、配分器、すなわちタンディッシュ（湯だまり）から
の溶融金属の流込み量を調整することにより、一定に保
持される。いくつかの鋳造機、例えばビレット連続鋳造
機又はブルーム連続鋳造機は、タンディッシュからの溶
融金属の一定の流込み量で鋳造し、鋳型の中の溶融金属
液面のレベルを、連鋳材引抜き速度を調整することによ
り調整する。これらの両方の調整方法は、当業者にとっ
て自明であり、これに関する文献は省略する。When casting a continuous cast steel material with a continuous caster, the continuous cast material (hereinafter, simply referred to as a continuous cast material) is usually carried out at a constant drawing speed. The level of the casting molten metal level in the mold is kept constant by adjusting the flow of molten metal from the distributor, i.e. the tundish. Some casters, such as continuous billet casters or bloom continuous casters, cast at a constant flow of molten metal from a tundish and draw the level of molten metal level in the mold to a continuous casting material. Adjust by adjusting the speed. Both of these adjustment methods are obvious to a person skilled in the art, and the literature relating to this is omitted.
前述の両方法の場合、第１の方法の場合においては、
第２の方法の場合よりもやや簡単に、鋳型の周囲の中の
異常を検出するために、連鋳材と鋳型との間の摩擦状態
を測定する試験が行われていた。これらの測定は、鋳型
内の動きのために、必要な力が鋳造の間に測定され、無
負荷の際に発生する力と比較される。この場合、従来
は、機械式でも、液圧式でも、駆動される鋳型振動駆動
装置が使用され、試験に供されていた。機械式の鋳型駆
動装置においては、このようなシステムは“Cocast St
andard News"誌（Vol.30,1/1991,4〜５頁）から公知で
ある。In the case of both methods described above, in the case of the first method,
In order to detect an abnormality in the periphery of the mold, a test for measuring the frictional state between the continuous cast material and the mold was performed slightly more easily than in the case of the second method. In these measurements, due to movement in the mold, the required force is measured during casting and compared to the force generated during no load. In this case, conventionally, a mold vibration driving device driven by a mechanical type or a hydraulic type is used and subjected to a test. For mechanical mold drives, such a system is known as “Cocast St.
andard News "(Vol. 30, 1/1991, pp. 4-5).
適切な液圧式の鋳型駆動装置は、ドイツ特許公報DE35
43790C2により公知である。A suitable hydraulic mold drive is described in German Patent Publication DE35
Known from 43790C2.
連鋳材表面の形状及び品質の面で、振動する連鋳材鋳
型においては、鋳型の壁と連鋳材外皮との間に、潤滑膜
を形成するため、使用される溶剤粉末（Giesspulver）
が重要であることが知られている（例えば“Stahl und
Eisen"誌（108（1988），第３号,1125〜1127頁）。従
って、鋳型の中の連鋳材の特性に関する情報は、ダミー
バーによる引抜き動作での引抜き力を測定することによ
り得られる。このために、相応して形成される力測定装
置が冷間連鋳材の中に組込まれる（“Stahl und Eise
n"誌（107（1987），第14及び15号,673〜677頁）。この
方法は、勿論、ダミーバーによる引抜き動作の間の測定
のみに適するが、実際の作動段階の間では、この測定方
法の適用は不可能である。In the case of a continuous casting mold that vibrates in terms of the shape and quality of the continuous casting material surface, a solvent powder (Giesspulver) is used to form a lubricating film between the mold wall and the continuous casting material skin.
Is known to be important (eg, “Stahl und
Eisen "(108 (1988), Issue 3, pages 1125-1127). Thus, information on the properties of the continuous cast material in the mold can be obtained by measuring the drawing force in the drawing operation by the dummy bar. For this purpose, a correspondingly formed force measuring device is integrated into the cold-cast material (“Stahl und Eise”).
n "(107 (1987), Nos. 14 and 15, p. 673-677). This method is, of course, suitable only for the measurement during the pull-out operation with the dummy bar, but during the actual operating phase, this measurement is Application of the method is not possible.
連鋳材表面を形成するためには、鋳型と連鋳材外皮と
の間の、ある種の潤滑の外に、例えば、振動パラメータ
（持上げ高さ、持上げ周波数、曲線形状）及び鋼自体の
品質、連鋳材引抜き速度、冷却条件と鋼の温度、及び特
に鋳造圧延での連鋳材案内装置の形式等により、発生さ
れる鋳型の中の変化も重要であるので、無負荷作動での
鋳型の振動の経過と鋳造作動との比較のみでは、鋳造作
動に、直接、介入する直接的な推定を得ることは不可能
である。In order to form the continuous casting surface, in addition to some lubrication between the mold and the continuous casting skin, for example, vibration parameters (lifting height, lifting frequency, curve shape) and the quality of the steel itself Depending on the continuous casting material drawing speed, cooling condition and steel temperature, and especially the type of continuous casting material guiding device in casting and rolling, etc., the change in the generated mold is also important, so the mold with no load operation It is not possible to obtain a direct estimate that directly intervenes in the casting operation only by comparing the course of the vibrations with the casting operation.
これらのすべての観察において、鋳型の中の連鋳材速
度は、均一の速度であると仮定され、この仮定の理由
は、多分に、連鋳材の引抜きも均一に回転する圧延ロー
ラによって、実現された事実に起因するからである。し
かし、実際の連鋳材速度は、鋳型の中の摩擦状態により
大幅に影響される。これは、連鋳材を、一時的に肉眼で
見ることができる上下の動きから分かる（“Stahl und
Eisen"誌（（1987），第14及び15号,673〜677
頁））。ドイツ特許公報DE3806583A1から連鋳材の動き
の経過を、鋳型から出た直後の領域内で検出し、測定信
号がダイオード列カメラにより発生されて、評価装置、
又は表示装置に供給されることが、公知になっている。
この文書から、公知の方法は、連鋳材、又は装置の固有
振動を考慮し、装置全体の運転方法をクリティカルな領
域が回避されるように調整するために用いられる。In all these observations, the speed of the cast material in the mold is assumed to be a uniform speed, the reason for this assumption being probably realized by the rolling rollers, which also rotate the material in the continuous casting. It is because of the facts given. However, the actual continuous casting material speed is greatly affected by the friction state in the mold. This can be seen from the up and down movement of the continuous cast material that is temporarily visible to the naked eye (“Stahl und
Eisen "((1987), Nos. 14 and 15, 673-677)
page)). From the German patent publication DE3806583A1, the course of the movement of the continuous cast material is detected in the area immediately after leaving the mold, the measurement signal is generated by a diode array camera, the evaluation device,
Alternatively, it is known to be supplied to a display device.
From this document, known methods are used to take into account the continuous castings or the natural vibrations of the device and to adjust the operation of the entire device in such a way that critical areas are avoided.
本発明の目的は、連鋳材の表面特性を改善するため
に、制御可能な動作パラメータを、直接に制御可能にな
るように、公知の測定法を改善することにある。It is an object of the present invention to improve known measuring methods so that controllable operating parameters can be directly controlled in order to improve the surface properties of the continuous casting.
上記目的は、本発明により、主請求項の特徴部分に記
載の方法のステップにより達成される。本発明の解決法
の有利な実施の形態は、その従属項に記載されている。This object is achieved according to the invention by the method steps described in the characterizing part of the main claim. Advantageous embodiments of the solution of the invention are described in the dependent claims.
本発明では、連鋳材の実際の走行距離と、その速度の
時間的経過とが、高い精度で測定される。次いで、これ
から得られた実際の相対速度が、同様に検出された別の
作用量と比較され、適切な相関法で実質的に多重の作用
量計算により、互いに比較できる大きさにされる。この
測定法は、初期情報として、連鋳材の走行距離の時間的
経過を提供する。平均走行路による差により、相対的走
行距離、又は相対的速度の時間的経過から、定格走行距
離及び定格速度が形成される。この定格速度を目標値と
して、実際値と該目標値との偏差から、摩擦係数及び／
又は鋳型振動を低減するために溶剤粉末の組成を調整す
るための制御信号が形成される。In the present invention, the actual running distance of the continuous cast material and the time course of the speed are measured with high accuracy. The actual relative velocities obtained therefrom are then compared with other similarly-determined effects, and are sized so that they can be compared with one another by means of a substantially multiple effect calculation with a suitable correlation method. This measurement method provides, as initial information, the time course of the mileage of the continuous casting. The difference according to the average travel path forms the rated travel distance and the rated speed from the time course of the relative travel distance or the relative speed. Using this rated speed as a target value, the friction coefficient and / or
Alternatively, a control signal for adjusting the composition of the solvent powder to reduce mold vibration is formed.
駆動装置のシリンダ力との結合により、駆動システ
ム、すなわち鋳型持上げテーブルの中の摩擦作業、又は
摩擦性能が定められ、作用量は、与えられた目標値に相
応して最適化される。In combination with the cylinder force of the drive, the drive system, i.e. the friction work or friction performance in the mold lifting table, is determined, and the working quantity is optimized in accordance with the given setpoint.
オンライン測定により、検出された相関関係の適用に
より、閉ループ制御回路が形成され、例えば、鋳造マー
ク深さ及び鋳造マーク間隔等の「表面輪郭」目標値が制
御される。By means of the on-line measurement, the application of the detected correlation forms a closed-loop control circuit for controlling "surface contour" target values such as, for example, casting mark depth and casting mark spacing.
１つの有利な実施の形態では、振動駆動装置の制御装
置による、鋳型振動を制御するための信号は、鋳型から
連鋳材に伝達される衝撃的な動きが、できるだけ小さい
か、又は零に近いように供給される。連鋳材と鋳型との
間の摩擦を表す測定値として液圧式駆動装置では、無負
荷と作動状態との間の、液圧式シリンダの中の差圧から
得られる測定値を使用する。機械式装置には、この値
は、ロードセルを介して得られる。摩擦係数の制御は、
高くなると、連鋳材の潤滑により行われる。本発明で
は、実際値と目標値との間に偏差が検出されると、溶剤
粉末は、摩擦係数が低減されるように調整される。この
ために、異なる溶剤粉末の相互間の混合比を調整して、
場合に応じて、溶剤粉末の状態（集合状態）を調整し
て、溶剤粉末が予熱により少なくとも軟化され、特に液
化されてから、溶剤粉末を、鋳型の中の溶融金属に供給
することが提案されている。In one advantageous embodiment, the signal from the control of the vibration drive for controlling the mold vibration is such that the impulsive movement transmitted from the mold to the continuous casting is as small as possible or close to zero. As supplied. Hydraulic drives use the measurement obtained from the differential pressure in the hydraulic cylinder between no load and operating conditions as a measure of the friction between the continuous casting and the mold. For mechanical devices, this value is obtained via a load cell. Control of the coefficient of friction
When it becomes high, it is performed by lubrication of the continuous casting material. In the present invention, when a deviation between the actual value and the target value is detected, the solvent powder is adjusted so that the coefficient of friction is reduced. For this purpose, the mixing ratio between different solvent powders is adjusted,
Depending on the case, it is proposed to adjust the state of the solvent powder (assembled state) so that the solvent powder is at least softened by preheating and especially liquefied before the solvent powder is supplied to the molten metal in the mold. ing.
本発明の１つの実施例が添付図面に示されている。 One embodiment of the present invention is illustrated in the accompanying drawings.
図１は、本発明の原理を示すブロック回路図、図２
は、連鋳材の時間に対する走行距離曲線の典型的な例を
示す線図、図３は、図２のその曲線の変形を示す線図で
ある。FIG. 1 is a block circuit diagram showing the principle of the present invention, and FIG.
FIG. 3 is a diagram showing a typical example of a traveling distance curve with respect to time of a continuous casting material, and FIG. 3 is a diagram showing a modification of the curve in FIG.
図１は、連鋳材11を示し、連鋳材11は、鋳型12から出
てローラ14により案内されている。FIG. 1 shows a continuous casting 11, which emerges from a mold 12 and is guided by rollers 14.
鋳型12は、溶剤粉末供給装置17に接続され、溶剤粉末
供給装置17は、遮断装置16を介して、溶剤粉末容器15に
接続されており、さらに、溶剤粉末供給装置17は、加熱
装置18を介して案内されている。The mold 12 is connected to a solvent powder supply device 17, the solvent powder supply device 17 is connected to a solvent powder container 15 via a shutoff device 16, and the solvent powder supply device 17 further includes a heating device 18. Has been guided through.
連鋳材11の狭幅側面には、センサが配置され、該セン
サは、この場合には、連鋳材のダイオード列を検出する
ダイオード列カメラ21として形成され、該カメラ21の向
きは鋳造方向に位置する。A sensor is arranged on the narrow side surface of the continuous casting material 11, and in this case, the sensor is formed as a diode row camera 21 for detecting a diode row of the continuous casting material, and the direction of the camera 21 is in the casting direction. Located in.
ダイオード列カメラ21は、測定信号線28を介して、走
行距離24及び速度23に関する連鋳材11の動きの測定装置
22に接続されている。連鋳材速度23及び連鋳材走行距離
24の変化に関する信号が、計算機26と、場合に応じて表
示装置25、例えばプリンタとに供給される。The diode array camera 21 is a device for measuring the movement of the continuous cast material 11 with respect to the travel distance 24 and the speed 23 via the measurement signal line 28.
Connected to 22. Continuous casting speed 23 and continuous casting distance
A signal relating to the change of 24 is supplied to a computer 26 and, if appropriate, a display device 25, for example a printer.
さらに、計算機26には、パラメータ27が供給される。 Further, a parameter 27 is supplied to the computer 26.
該計算機26の出力側は、制御信号線31を介して、通常
は、溶剤粉末容器15の遮断弁であるアクチュエータ（遮
断装置）16、すなわち操作素子に接続されている制御器
32に接続されるとともに、制御器33を介して、溶剤粉末
のための加熱装置18に接続されている。The output side of the computer 26 is connected via a control signal line 31 to an actuator 16 which is normally a shut-off valve of the solvent powder container 15, ie a controller connected to an operating element.
It is connected to a heating device 18 for the solvent powder through a controller 33 as well as to a heating device 18 for the solvent powder.
前記計算機26は、制御信号線34を介して、振動装置13
を制御するための制御器35に接続されている。The computer 26 is connected to the vibration device 13 via a control signal line 34.
Is connected to a controller 35 for controlling.
図２は、検出された測定信号の典型的な特性曲線を示
す。上部には、与えられた例では、正弦曲線に相応して
振動する鋳型の平均速度の一部が表示されている。FIG. 2 shows a typical characteristic curve of the detected measurement signal. At the top, in the example given, a portion of the average speed of the mold oscillating corresponding to a sinusoid is displayed.
その中には、一方では、連鋳材全体の平均連鋳材速度
が示され、その下には、鋳型の直接下の領域内に表示さ
れている連鋳材速度実際値が示されている。これらの速
度が、鋳型の近辺の領域内で、鋳型の内壁に対する連鋳
材外皮の摩擦及び場合に応じて短時間の接着に依存する
ことが明瞭に分かる。その下に記載の正弦曲線は、鋳型
の走行距離実際値を示す。その下には、鋳型の近辺の領
域内の連鋳材の走行距離実際値が示されている。Among them, on the one hand, the average continuous casting material speed of the entire continuous casting material is shown, and below that, the continuous casting material speed actual value displayed in the area directly below the mold is shown. . It can clearly be seen that these velocities, in the region near the mold, depend on the friction of the continuous cast skin against the inner wall of the mold and, if appropriate, the short-time adhesion. The sine curve below it shows the actual distance traveled by the mold. Below that is shown the actual travel distance of the continuous casting in the area near the mold.
連鋳材速度及び連鋳材走行距離の両方の検出では、測
定値が得られのであって、計算値が得られるのではな
い。図示の曲線は１つの例であり、評価可能な点を有す
る特徴的な実際値形状を示す。最小値、最大値及び変曲
点の配置から、当業者は、鋳型の中の連鋳材外皮の実際
の特性を推定できる。判断のために、当業者は、点Ａに
おける曲線形状を有する時点Ｔでの連鋳材の位置を適用
する。距離Ｓは速度Ｖから、直接、誘導される値であ
る。In the detection of both the continuous casting material speed and the continuous casting material traveling distance, a measured value is obtained, not a calculated value. The curve shown is one example and shows a characteristic actual value shape with evaluable points. From the location of the minimum, maximum, and inflection points, one skilled in the art can estimate the actual properties of the continuous cast skin in the mold. For the purpose of judgment, the person skilled in the art applies the position of the continuous casting at time T having a curved shape at point A. The distance S is a value directly derived from the speed V.
図３は、連鋳材走行距離の変動を示す。点Ａでの個々
の曲線の曲率半径と、場合に応じて依存する方向変化に
注意されたい。鋳型の振動及び溶剤粉末を調整すること
により、連鋳材の走行距離実際値を調整できる。FIG. 3 shows the variation of the continuous casting material traveling distance. Note the radii of curvature of the individual curves at point A and the directional changes that may depend. By adjusting the vibration of the mold and the solvent powder, the actual traveling distance of the continuous cast material can be adjusted.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 パルシャート，ローター ドイツ連邦共和国、デー 40885 ラー ティンゲン、アン・デア・デレン ２ア ー (72)発明者 トゥルム，ハンス・ギュンター ドイツ連邦共和国、デー 47269 デュ イスブルク、ヘルトルファー・シュトラ ーセ 70 (72)発明者 フランツェン，ハンス・ウーヴェ ドイツ連邦共和国、デー 47269 デュ イスブルク、ライザーヴェーク60 (72)発明者 デッペ，ゲルト―ヨアヒム ドイツ連邦共和国、デー 47809 クレ ーフェルト、アイベンドンク 24 (58)調査した分野(Int.Cl.7，ＤＢ名) B22D 11/108 B22D 11/053 B22D 11/16 104 ──────────────────────────────────────────────────続 き Continuing the front page (72) Inventor Parshard, Rotor, Germany, Day 40885 Laatingen, An der Derren 2 aar (72) Inventor Tulum, Hans Gunter Germany, Day 47269 Du Isburg Fertzen, Hans Uwe, Germany, day 47269 Duisburg, Reiserweg 60 (72) Inventor Deppe, Gerd-Joachim, Germany, day 47809 Krefeld , Ibendonk 24 (58) Fields surveyed (Int. Cl. 7 , DB name) B22D 11/108 B22D 11/053 B22D 11/16 104
Claims (7)
入され、部分凝固状態で該鋳型から引出され、連鋳材の
動きの経過が、できるだけ前記鋳型から出た直後の領域
内で検出され、前記動きの経過の検出が無接触で遅延な
しに、光に応答するセンサにより行われ、該センサは、
前記連鋳材の、時間に対する走行距離特性に関する評価
可能な測定信号を発生するように形成、配置されてい
る、例えば連鋳鋼材等の前記連鋳材を鋳造するに際し、 ａ） 前記鋳造溶融金属の液面が、液状スラグを形成す
る溶剤粉末により、前記連鋳材の外皮と前記鋳型の内壁
との間に潤滑膜を形成するように、被覆されるステップ
と、 ｂ） 前記連鋳材外皮と前記鋳型内壁との間の摩擦を表
す測定値が、振動装置で測定され、その測定信号が、計
算機として形成されている評価装置に供給されるステッ
プと、 ｃ） 前記連鋳材の前記時間に対する走行距離特性を表
す測定信号も、前記計算機に供給されるステップと、 ｄ） 前記計算機で、前記連鋳材の前記時間に対する走
行距離特性と、前記鋳型の中の前記連鋳材の摩擦の、そ
れぞれの測定信号が、比較できる大きさにされて、目標
値と比較されるステップと、 ｅ） 前記目標値が、連鋳材速度の平均値として、前記
連鋳材の前記時間に対する走行距離特性から得られるス
テップと、 ｆ） 実際値と前記目標値との間に偏差があると、摩擦
係数及び／又は鋳型振動を低減するために、前記溶剤粉
末の組成を調整するための信号が形成、出力されるステ
ップとを具備することを特徴とする連続鋳造材の表面品
質を最適化する方法。In a casting apparatus, molten metal is introduced into an open mold and is withdrawn from the mold in a partially solidified state, and the course of the movement of the continuous cast material is as much as possible in the region immediately after leaving the mold. Detected, the detection of the course of the movement being carried out by a sensor responsive to light without contact and without delay, said sensor comprising:
When casting the continuous cast material, such as a continuous cast steel material, which is formed and arranged to generate an evaluable measurement signal relating to the traveling distance characteristic of the continuous cast material with respect to time, a) the cast molten metal The liquid surface of the continuous casting material is coated with a solvent powder forming a liquid slag so as to form a lubricating film between the outer skin of the continuous casting material and the inner wall of the mold; b) the continuous casting material outer skin Measuring a value representing the friction between the mold and the inner wall of the mold with a vibration device, and supplying the measurement signal to an evaluation device configured as a computer; c) the time of the continuous casting material A measurement signal representative of a mileage characteristic for the continuous casting is also supplied to the computer; and d) a calculation of the mileage characteristic of the continuous casting for the time and the friction of the continuous casting in the mold. , Each measurement And e) the target value is obtained from the running distance characteristic of the continuous casting material with respect to the time as an average value of the continuous casting material speed. And f) if there is a deviation between the actual value and the target value, a signal is generated and output for adjusting the composition of the solvent powder in order to reduce the coefficient of friction and / or mold vibration. And a step of optimizing the surface quality of the continuous cast material.
記連鋳材に伝達される衝撃的な動きが、できるだけ小さ
いか、又は零に近いように、振動駆動装置の制御装置に
供給されることを特徴とする請求項１に記載の連続鋳造
材の表面品質を最適化する方法。2. The vibration adjustment signal of the mold is supplied to a control device of a vibration drive device such that an impact movement transmitted from the mold to the continuous casting material is as small as possible or close to zero. The method of optimizing the surface quality of a continuous cast material according to claim 1, wherein the surface quality is optimized.
す測定値が、該鋳型の振動装置の液圧式駆動装置で、無
負荷と作動状態との間の、液圧シリンダの中の差圧から
得られることを特徴とする請求項１に記載の連続鋳造材
の表面品質を最適化する方法。3. A measure of said friction of said continuous casting in said mold, wherein said measure is a hydraulic drive of a vibrating device of said mold, wherein said measure is within a hydraulic cylinder between an unloaded state and an operating state. The method for optimizing the surface quality of a continuous cast material according to claim 1, which is obtained from a differential pressure of:
す測定信号が、機械式駆動装置で、振動棒の中に配置さ
れているロードセルから出力されることを特徴とする請
求項１に記載の連続鋳造材の表面品質を最適化する方
法。4. The method according to claim 1, wherein the measurement signal indicative of the friction of the continuous casting material in the mold is output from a load cell disposed in a vibrating rod by a mechanical drive. 2. A method for optimizing the surface quality of a continuous cast material according to item 1.
ることを特徴とする請求項１に記載の連続鋳造材の表面
品質を最適化する方法。5. The method as claimed in claim 1, wherein the mixing ratio of the different solvent powders is adjusted.
記溶融金属との接触の前に調整される、例えば、熱エネ
ルギーの供給により軟化又は液化されることを特徴とす
る請求項１又は５に記載の連続鋳造材の表面品質を最適
化する方法。6. The method according to claim 1, wherein the state of the solvent powder is adjusted before contact with the molten metal in the mold, for example, softened or liquefied by supplying thermal energy. Or a method of optimizing the surface quality of the continuous cast material according to 5.
性が、前記連鋳材の側方に隣接して連鋳材狭幅側面に配
置され、鋳造方向と向きが一致するダイオード列カメラ
により光学的に検出されることを特徴とする請求項１に
記載の連続鋳造材の表面品質を最適化する方法。7. The running distance characteristic of the continuous casting material with respect to the time is measured by a diode row camera which is arranged on a narrow side surface of the continuous casting material adjacent to the side of the continuous casting material and whose direction matches the casting direction. The method for optimizing the surface quality of a continuous casting according to claim 1, characterized in that it is detected optically.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19614760A DE19614760A1 (en) | 1996-04-02 | 1996-04-02 | Process for optimizing the strand surface quality |
| DE19614760.3 | 1996-04-02 | ||
| PCT/DE1997/000732 WO1997036706A1 (en) | 1996-04-02 | 1997-04-02 | Process for optimising surface quality of continuous castings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11513936A JPH11513936A (en) | 1999-11-30 |
| JP3130053B2 true JP3130053B2 (en) | 2001-01-31 |
Family
ID=7791274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09534837A Expired - Fee Related JP3130053B2 (en) | 1996-04-02 | 1997-04-02 | How to optimize the surface quality of continuous castings |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0907442B1 (en) |
| JP (1) | JP3130053B2 (en) |
| CN (1) | CN1072067C (en) |
| AT (1) | ATE201623T1 (en) |
| AU (1) | AU722408B2 (en) |
| BR (1) | BR9708495A (en) |
| CA (1) | CA2250871A1 (en) |
| DE (2) | DE19614760A1 (en) |
| ES (1) | ES2157072T3 (en) |
| RU (1) | RU2163856C2 (en) |
| UA (1) | UA44840C2 (en) |
| WO (1) | WO1997036706A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITRM980258A1 (en) * | 1998-04-23 | 1999-10-23 | Acciai Speciali Terni Spa | PROCEDURE FOR THE CONTINUOUS CASTING PRODUCTION OF SLABS FREE OF SURFACE DEFECTS AND SLABS SO OBTAINED |
| KR101790001B1 (en) * | 2016-03-02 | 2017-11-20 | 주식회사 포스코 | Melt supply equipment, casting apparatus and casting method |
| WO2018105652A1 (en) | 2016-12-06 | 2018-06-14 | 新日鐵住金株式会社 | Method for evaluating volume of slag on surface of molten metal |
| US20200406321A1 (en) * | 2018-03-02 | 2020-12-31 | Nippon Steel Corporation | Manufacturing method for slab and continuous casting equipment |
| CN115121771B (en) * | 2022-07-27 | 2023-06-09 | 西北工业大学 | Intelligent ultrasonic continuous casting method and measuring and controlling device for metal section |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2743579A1 (en) * | 1976-10-05 | 1978-04-06 | Centre Rech Metallurgique | METAL CONTROL METHOD FOR CONTINUOUS CASTING |
| AT367328B (en) * | 1980-04-29 | 1982-06-25 | Vnii Avtom Chernoi Metallurg | DEVICE FOR AUTOMATIC TENSION FORCE IN CONTINUOUS CASTING |
| JPH0235622B2 (en) * | 1984-08-24 | 1990-08-13 | Nippon Kokan Kk | RENZOKUCHUZONIOKERUBUREEKUAUTOYOCHIHOHO |
| DE3806583A1 (en) * | 1988-02-26 | 1989-09-07 | Mannesmann Ag | METHOD IN A CASTING SYSTEM FOR PRODUCING STRINGS |
| DE19515316C1 (en) * | 1995-04-19 | 1996-08-29 | Mannesmann Ag | Method for operating a mold |
-
1996
- 1996-04-02 DE DE19614760A patent/DE19614760A1/en not_active Withdrawn
-
1997
- 1997-04-02 ES ES97922831T patent/ES2157072T3/en not_active Expired - Lifetime
- 1997-04-02 DE DE59703679T patent/DE59703679D1/en not_active Expired - Lifetime
- 1997-04-02 CA CA002250871A patent/CA2250871A1/en not_active Abandoned
- 1997-04-02 BR BR9708495A patent/BR9708495A/en not_active IP Right Cessation
- 1997-04-02 EP EP97922831A patent/EP0907442B1/en not_active Expired - Lifetime
- 1997-04-02 JP JP09534837A patent/JP3130053B2/en not_active Expired - Fee Related
- 1997-04-02 CN CN97193564A patent/CN1072067C/en not_active Expired - Fee Related
- 1997-04-02 UA UA98105197A patent/UA44840C2/en unknown
- 1997-04-02 WO PCT/DE1997/000732 patent/WO1997036706A1/en active IP Right Grant
- 1997-04-02 RU RU98119841/02A patent/RU2163856C2/en not_active IP Right Cessation
- 1997-04-02 AU AU28857/97A patent/AU722408B2/en not_active Ceased
- 1997-04-02 AT AT97922831T patent/ATE201623T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE59703679D1 (en) | 2001-07-05 |
| CN1215357A (en) | 1999-04-28 |
| CA2250871A1 (en) | 1997-10-09 |
| JPH11513936A (en) | 1999-11-30 |
| EP0907442A1 (en) | 1999-04-14 |
| DE19614760A1 (en) | 1997-10-09 |
| AU2885797A (en) | 1997-10-22 |
| RU2163856C2 (en) | 2001-03-10 |
| CN1072067C (en) | 2001-10-03 |
| ATE201623T1 (en) | 2001-06-15 |
| UA44840C2 (en) | 2002-03-15 |
| ES2157072T3 (en) | 2001-08-01 |
| WO1997036706A1 (en) | 1997-10-09 |
| BR9708495A (en) | 1999-08-03 |
| EP0907442B1 (en) | 2001-05-30 |
| AU722408B2 (en) | 2000-08-03 |
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