JPS6152917A - Plate width controlling device of tandem rolling mill - Google Patents
Plate width controlling device of tandem rolling millInfo
- Publication number
- JPS6152917A JPS6152917A JP59175744A JP17574484A JPS6152917A JP S6152917 A JPS6152917 A JP S6152917A JP 59175744 A JP59175744 A JP 59175744A JP 17574484 A JP17574484 A JP 17574484A JP S6152917 A JPS6152917 A JP S6152917A
- Authority
- JP
- Japan
- Prior art keywords
- plate width
- tension
- target value
- rolled
- control device
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000003079 width control Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000004043 responsiveness Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/06—Width
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/02—Tension
- B21B2265/06—Interstand tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
- B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
- B21B41/10—Loop deflectors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の技術分野）
本発明はフィードフォワード制御方式を用いたタンデム
圧延別の板巾制御に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to strip width control for each tandem rolling process using a feedforward control method.
鋼板等の被圧延材における板Ｉ＋］の均一化は（々めて
重要な品質要求であるにもかかわらず、従来のフィード
バック制御方式を用いた板「１］の自動制御装置はなお
十分な効果を得ていないことはよく知られている。ここ
で、フィードバック制御方式とは、板巾計で検゛出され
た板１コ検出１直と目標板ｒｐ ｆ＋ｆｔとの板巾偏着
（０１に基き、比例積分制御により上流側の圧延スタン
ド間張力の調整を行うん制御方式をいう。特に、スキッ
ドマーク等に起因りる板１〕変肋に対しては、従来のフ
ィードバック制御方式の板「［」制御で対処することは
制御応答上回ウチ１１であるという問題点があった。Even though the uniformity of plate I+ in rolled materials such as steel plates is an extremely important quality requirement, the automatic control device for plate ``1'' using the conventional feedback control method is still insufficiently effective. It is well known that the feedback control method is based on the deviation of the board width between the one board detected by the board width meter and the target board rp f + ft (01). This is a control system that uses proportional-integral control to adjust the tension between rolling stands on the upstream side.In particular, for plate 1] variable ribs caused by skid marks, etc., the conventional feedback control method [''] There was a problem in that the control response exceeded the control response.
そこで、フィードフォワード方式の板巾＄Ｉ Ｈが望ま
れていた。ところが、被圧延義の受ける張力を制御２Ｉ
ｌすることにより板１］の制御が可能であるという事は
公知であるが、しかしフィードフォワード制御を行う場
合、Ｒ］突変形ロールギャップで生ずるのか、或はロー
ルギャップ以外の所で生ずるのか、また１（］変形のモ
デルなどに関して不明な点が多く、今だこの方式を用い
た精度のＪ：い板巾制陣装置が提供されていない。Therefore, a feedforward type IH was desired. However, it is difficult to control the tension applied to the rolled material.
It is well known that the plate 1] can be controlled by performing feed forward control, but when performing feedforward control, does the sudden deformation R] occur at the roll gap, or does it occur somewhere other than the roll gap? In addition, there are many unknown points regarding the model of 1() deformation, and an accurate J: board width control device using this method has not yet been provided.
（発明の目的）
本発明は上記問題点を考慮してなされたもので、巾変形
（巾縮み）は材料がスタンド間を走行する間に徐々に起
こるという圧延現象に基いてフィードフォワード制御を
行いミ板［１」精度を向上させる合理的な板巾制御装置
を提供することを目的としている。(Object of the Invention) The present invention has been made in consideration of the above problems, and performs feedforward control based on the rolling phenomenon in which width deformation (width shrinkage) occurs gradually while the material runs between stands. The purpose of this invention is to provide a rational board width control device that improves the accuracy of the board [1].
（発明の概要）
上記目的を達成するため、本発明は次に述べる実験結果
に基づいてなされている。すなわち張力による巾変形（
巾縮み）は圧延スタンド間を被圧延材が走行する間に徐
々に起こり、そのモデルは、例えば下式で表わされる事
が実験的に明らかになった。 −
但し、
Ｗ、Ｗｒ３・・・隣接２スタンド間のＡｉｌ！Ｉ点とＢ
八
地点における板ｒ１１（ｍｍ）（なお
圧延材料はＡ地点から８地点へ
流れるものとする。）
ｔ ’、 ｔ’、・・・各々、圧延材料がＡ地点、Ｂ
地点を通過する時刻（秒）
ｔｒ・・・・・・・・・・・・圧延材料に加わる張力応
力（Ｋｙ／＃２）
θ・・・・・・・・・・・・・・・材料温度（’Ｃ）
ゝｆ（θ）・・・・・・材料温度
θに依存する補正係数に、ｎ・・・・・・・・・定数
（）ｄｔ・・・〔〕内の時間積分を表わす。(Summary of the Invention) In order to achieve the above object, the present invention has been made based on the experimental results described below. In other words, width deformation due to tension (
It has been experimentally revealed that width shrinkage (width shrinkage) occurs gradually while the rolled material runs between rolling stands, and that its model can be expressed, for example, by the following formula. - However, W, Wr3...Ail between two adjacent stands! Point I and B
Plate r11 (mm) at 8 points (It is assumed that the rolled material flows from point A to point 8.) t', t',...Respectively, the rolled material flows from point A to point B.
Time of passing the point (seconds) tr・・・・・・・・・Tensile stress applied to the rolled material (Ky/#2) θ・・・・・・・・・・・・・・・ Material Temperature ('C)
f(θ)...In the correction coefficient depending on the material temperature θ, n......Constant ()dt...Represents the time integral within [].
ここで（１）式のモデルでは、被圧延材がある圧延スタ
ンド間をＡ地点から８地点へ流れる際に起こる巾縮み量
は被圧延材に加わる張力応力ｔ。Here, in the model of equation (1), the amount of width shrinkage that occurs when the material to be rolled flows between rolling stands from point A to point 8 is the tensile stress t applied to the material to be rolled.
（Ｋｇ／ｍｍ２）のΔ地点〜Ｂ地点間の材料走行時間（
張力が付加される時間）、及び圧延材料温度θ（”Ｃ）
に関係することを表わしている。(Kg/mm2) material running time between point Δ and point B (
time during which tension is applied), and rolling material temperature θ (''C)
represents something related to.
したがって、本発明の特徴は、圧延スタンド間に設りら
れた板巾計の検出値と次スタンドの板巾目標値とを比較
する事により、被圧延材が板巾計から次スタンドまで走
行する間に、変更さけるべき板ｒｌＪ変更ωを演搾し、
その演鋒結果に基き圧延スタンド間に付加すべき張力応
力値を、例えば（１）式より通口し、張力調整を行う事
にある。Therefore, the feature of the present invention is that by comparing the detection value of the strip width gauge installed between the rolling stands with the target width value of the next stand, the material to be rolled can travel from the strip width gauge to the next stand. In the meantime, extract the board rlJ change ω that should be avoided,
Based on the result of the calculation, the tension stress value to be applied between the rolling stands is communicated, for example, from equation (1), and the tension is adjusted.
以下、本発明の一実施例を第１図及び第２図を参照しつ
つ説明する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第１図はタンデム圧延様における板巾制惨りＩ装買の概
略構成図である。図において、１は板状の金属材料から
なる被圧延材であり、この被圧延材１は圧延スタンド２
から圧延スタンド３に向かって流れ、その途中に板巾計
４が設けられている。張力目標値演算装置５では板巾計
検出１ｌＩｉ６、次スタンド板１】目標値７、板巾計４
から次スタンド３間の材料移送時間予測値８、及び材温
（圧延材料温度）予測値９をもとに前記（１）式を用い
てスタンド２．３間に付加ずべき張力応力目標値１Ｑを
演算する。張力制ｔｌＯ装置、１１は張、力応力目標値
１０をもとに、ルーバ制御装置１２に対してルーバトル
ク目標修正ｆｉ’ｉ１３を出力するか、或は、圧延スタ
ンド２を駆動りる駆８電動ｌＸ１１４の速度制御装置１
５に対駿で駆動電動機１４の速度目標値 “正量１
６を出力する。ルーバ制御装置１２はルーバトルク目標
１ａ修正最１３に暴いてルーバ駆動部１７、ルーバアー
ム１８、及びルーバロール１９を介して被圧延材１を上
下動させて張力調整を行う。一方、速度制御装置１５は
速度目標１１ａ修正止１６に基づいて駆動電動機１４の
回転速度を変化させて張力調整を行う。そして、このよ
うな張力調整により、被圧延材１が圧延スタンド３に到
達した時の板ＩＩ］が目標値に制御される。FIG. 1 is a schematic diagram of the structure of a strip-width system for tandem rolling. In the figure, 1 is a rolled material made of a plate-shaped metal material, and this rolled material 1 is attached to a rolling stand 2.
It flows from there toward the rolling stand 3, and a plate width gauge 4 is provided along the way. The tension target value calculation device 5 detects the board width meter 1lIi6, the next stand board 1] target value 7, and the board width meter 4.
Based on the predicted value 8 of material transfer time between stands 3 and 3 and the predicted value 9 of material temperature (rolled material temperature), use the above formula (1) to calculate the target value 1Q of the tension stress to be applied between stands 2 and 3. Calculate. A tension control tlO device 11 outputs a louver torque target correction fi'i 13 to the louver control device 12 based on the tension and force stress target value 10, or a drive 8 electric motor that drives the rolling stand 2. lX114 speed control device 1
5, the speed target value of the drive motor 14 is “positive amount 1”.
Outputs 6. The louver control device 12 corrects the louver torque target 1a and adjusts the tension by moving the rolled material 1 up and down via the louver drive unit 17, the louver arm 18, and the louver roll 19. On the other hand, the speed control device 15 adjusts the tension by changing the rotational speed of the drive motor 14 based on the speed target 11a correction stop 16. Through such tension adjustment, the plate II] when the material to be rolled 1 reaches the rolling stand 3 is controlled to a target value.
次に、本実施例の動作について説明する。被圧延材１が
圧延スタンド２を出た後に、仮１１」計４に到達すると
、この板「１」計４から、板１Ｊ計検出値６が張力目標
値演算装置５に送られる。張力目標値演算装置５ではま
ず板［１〕計検出値６と次スタンド板中目標値７とを比
較することにより、板巾計〜次スタンド３間を被圧砥料
１が走行する間に変更さＵるべぎ板「１】変更ｍを次の
（２）式に従って演算づる。Next, the operation of this embodiment will be explained. After the material to be rolled 1 leaves the rolling stand 2 and reaches a temporary 11'' total of 4, the plate 1J total detected value 6 is sent from this plate ``1'' total 4 to the tension target value calculation device 5. The tension target value calculating device 5 first compares the detected value 6 of the plate [1] meter with the target value 7 in the next stand plate, thereby calculating the Modified U Rubegi board ``1] Calculate the modified m according to the following equation (2).
但し、
Ｅ・・・・・・圧延材料が板巾計〜次スタンド間を走行
１゛る間に変更ずべき板１」】変更率（−）ＷＡ・・・
板１４］検出値（ｍｍ ）
Ｗ８・・・次スタンド板巾目標値（ｍｍ ）次に前記演
算装置５は仮ｒｊ＋計４〜次スタンド３間の材料移送時
間予測値８及び材温予測値９を考慮してスタンド２，３
間に付加Ｊべき張力応力目標値１０を次の（３）式に従
って演算し、その演算結果を張力制御装置１１に送る。However, E...Plate 1 that should be changed while the rolled material travels between the plate width gauge and the next stand 1] Change rate (-) WA...
Plate 14] Detected value (mm) W8...Next stand plate width target value (mm) Next, the calculation device 5 calculates the temporary rj + total predicted material transfer time between 4 and next stand 3 8 and predicted material temperature 9 Stands 2 and 3 considering
In the meantime, a tensile stress target value 10 to be added J is calculated according to the following equation (3), and the calculation result is sent to the tension control device 11.
但し、
ｔ、・・・・・・・・・スタンド間に付加サベき張力応
力目標値＜Ｋ３／ｍｍ２＞
Ｅ・・・・・・・・・・・・（２）式による演算結果（
−）”ＡＢ・・・・・・・・・板巾計４〜次スタンド間
の材料移送時間予測値（秒）
θ・・・・・・・・・・・・材温予測値（”Ｃ）ｆ（θ
）・・・拐料温度θに依存する補正係数に、ｎ・・・・
・・定数 ゝなお
、（３）式は前記（１）式で示される［１〕縮みモデル
を張力に関して解いた式となっている。However, t......Target value of added Sabe tension stress between stands <K3/mm2> E.........Calculated result from formula (2) (
-)"AB......Predicted material transfer time between board width gauge 4 and next stand (seconds) θ......Predicted material temperature ("C )f(θ
)...The correction coefficient depending on the particle temperature θ is n...
...Constant Note that equation (3) is an equation obtained by solving the [1] shrinkage model shown in equation (1) above with respect to tension.
張力制御２′Ｉｌ装置１１では張力応力目標値１０をも
とに、実際の張力付加手段であるルーバ制御装置１２或
は速度制御装置１５に対し、それぞれルーパトルク目標
値修正最１３、速度目標値修正量１６を送る事により張
力調整を行う。この様にして調整された張力がスタンド
２．３間に付加される事により、圧延材料１は板巾計４
〜次スタンド３間で目標とする１１〕縮みを起こし、次
スタンド３の到達時には目標とする板１１」に制御され
ることになる。The tension control device 11 corrects the looper torque target value 13 and the speed target value, respectively, for the louver control device 12 or the speed control device 15, which are actual tension applying means, based on the tension stress target value 10. The tension is adjusted by sending the amount 16. By applying the tension adjusted in this way between the stands 2 and 3, the rolled material 1 is
The target board 11] shrinks between the next stand 3 and the target board 11.
第２図（ａ＞、（ｂ）、（ｃ）は上記実施例の制御１１
結果を記づチャートである。なお、実線は従来のフィー
ドバック制御を実施した場合であり、本実施例のフィー
ドフォワード制御を実施した場合を示している。またチ
ャートは上から順に第２図（ａ）が板＋ｉＪ計４の出力
、第２図（ｂ）が次圧延スタンドの板巾、及び第２図（
Ｃ）がスタンド間２，３の張力をそれぞれ示している。FIG. 2 (a>, (b), (c) shows the control 11 of the above embodiment.
This is a chart showing the results. Note that the solid line shows the case where conventional feedback control is implemented, and the solid line shows the case where feedforward control of this embodiment is implemented. Also, from the top of the chart, Figure 2 (a) shows the output of the plate + iJ total of 4, Figure 2 (b) shows the width of the next rolling stand, and Figure 2 (
C) shows the tension between stands 2 and 3, respectively.
そして第２図から明らかなように、従来のフィードバッ
ク制御では困ｔ１［であるようなスキッドマーク等に起
因する板巾変動に対しても、本実施例によるフィードフ
ォワード制御を実ｍする事により、応答の速い張力修正
がなされ、良好な板巾制御結果の１ｑられる事がわかる
。As is clear from FIG. 2, by implementing the feedforward control according to this embodiment, even for width fluctuations caused by skid marks, etc., which are difficult to achieve with conventional feedback control, It can be seen that the tension is corrected with a quick response, and that good board width control results can be achieved by 1q.
なお、上記実施例では、張力制御装置１１の出力信号を
ルーバ制（２０装置１２または駆動型りＪは１４の速度
制御装置１５に送る小によりスタンド２．３間の張力調
整を行っているが、張力調整の手段は特にここに示した
ものに限定されるものではない。In the above embodiment, the tension between the stands 2 and 3 is adjusted by sending the output signal of the tension control device 11 to the louver system (20 device 12 or the drive type machine 14 to the speed control device 15). However, the tension adjustment means are not particularly limited to those shown here.
以上述べた様に、本発明ではスタンド間に設りられた板
「ｊＪ計の検出値をもとに板「１〕計からスタンド間を
材料が走行する間に変更すべぎ板「１］変更母を演算し
、その演算結果に基ぎスタンド間張力の調整を行う事に
より、次スタンド到達時の板巾が目標値に制御されるよ
う構成したので、スキッドマーク等に起因する板巾変動
に対しても対処出来る応答性に優れた板巾制御を実説出
来る。As described above, in the present invention, the plate installed between the stands is changed based on the detected value of the JJ meter while the material travels between the stands. By calculating the matrix and adjusting the tension between the stands based on the calculation result, the board width when reaching the next stand is controlled to the target value, so it is possible to prevent board width fluctuations caused by skid marks etc. We will be able to demonstrate board width control with excellent responsiveness that can also be used to deal with such situations.
第１図は本発明ま一実施例を示す構成図、第２図（ａ＞
、（ｂ）、（ｃ）は第１図の１−制御効果を示１図であ
る。
１・・・圧延材料、２．３・・・圧延スタンド、４・・
・板巾計、５・・・張力目標演算装置、６・・・板１１
〕計検出値、７・・・次スタンド板［ＩＪ目標値、８・
・・板「１］泪から次スタンド間の材料移送時間予測値
、９・・・材温予測値、１２・・・ルーバ制御装置、１
３・・・張力応力目標値修正量、１４・・・駆動電動儂
、１５・・・速度制御装置、１６・・・速度目標値修正
量、１７・・・ルーバ駆動部、１８・・・ルーバアーム
、１つ・・・ルーバロール。
出願人代理人 猪 股 清
第１図FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 (a>
, (b) and (c) are 1 diagrams showing the 1-control effect of FIG. 1. 1... Rolling material, 2.3... Rolling stand, 4...
・Plate width meter, 5...Tension target calculation device, 6...Plate 11
] Meter detection value, 7...Next stand board [IJ target value, 8...
... Board "1" Predicted material transfer time between tears and the next stand, 9... Predicted material temperature, 12... Louver control device, 1
3... Tension stress target value correction amount, 14... Drive electric unit, 15... Speed control device, 16... Speed target value correction amount, 17... Louver drive section, 18... Louver arm , one... Louvaroll. Applicant's agent Kiyoshi Inomata Figure 1
Claims (1)
ら連続圧延するタンデム圧延機において、隣接する二つ
の圧延スタンド間に設けられ被圧延材の板巾を検出する
板巾計と、この板巾計の検出値と前記二つの圧延スタン
ドにおける下流側圧延スタンドの板巾目標値とを比較し
て前記板巾計から前記下流側圧延スタンド間を圧延材が
走行する間に変更させるべき板巾変更量を演算する第１
の演算装置と、前記板巾変更量、前記板巾計から前記下
流側圧延スタンド間における被圧延材の移送時間予測値
、及び被圧延材の温度予測値に基いて前記二つの圧延ス
タンド間の被圧延材に付加すべき張力応力目標値を演算
する第２の演算装置と、前記張力応力目標値をもとに前
記二つの圧延スタンド間の被圧延材の張力調整を行う張
力制御装置とを備えたことを特徴とするタンデム圧延機
の板巾制御装置。In a tandem rolling mill that continuously rolls a material to be rolled while applying tension using a plurality of rolling stands, a plate width meter is installed between two adjacent rolling stands to detect the width of the material to be rolled, and this width meter is used. The detected value is compared with the target value of the width of the downstream rolling stand in the two rolling stands, and the amount of plate width change that should be changed while the rolled material is traveling between the downstream rolling stands from the plate width meter. The first step to calculate
a computing device, and a calculation device for determining the distance between the two rolling stands based on the plate width change amount, the predicted value of the transfer time of the rolled material from the plate width meter to the downstream rolling stand, and the predicted temperature value of the rolled material. a second calculation device that calculates a target value of tension stress to be applied to the material to be rolled; and a tension control device that adjusts the tension of the material to be rolled between the two rolling stands based on the target value of tension stress. A board width control device for a tandem rolling mill, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59175744A JPS6152917A (en) | 1984-08-23 | 1984-08-23 | Plate width controlling device of tandem rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59175744A JPS6152917A (en) | 1984-08-23 | 1984-08-23 | Plate width controlling device of tandem rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6152917A true JPS6152917A (en) | 1986-03-15 |
| JPH0324283B2 JPH0324283B2 (en) | 1991-04-02 |
Family
ID=16001486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59175744A Granted JPS6152917A (en) | 1984-08-23 | 1984-08-23 | Plate width controlling device of tandem rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6152917A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003001311A (en) * | 2001-06-21 | 2003-01-07 | Nisshin Steel Co Ltd | Plate width control method in cold tandem rolling |
| KR100543300B1 (en) * | 2001-11-09 | 2006-01-20 | 주식회사 포스코 | Width adjusting method and width adjusting device of rolled material |
| EP2998040A1 (en) * | 2014-09-17 | 2016-03-23 | Primetals Technologies Germany GmbH | Width adjustment in a finishing train |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5668519A (en) * | 1979-11-07 | 1981-06-09 | Toshiba Corp | Width control device of rolling mill |
| JPS5758910A (en) * | 1980-09-26 | 1982-04-09 | Sumitomo Metal Ind Ltd | Controlling method for sheet breadth in continuous hot rolling mill |
-
1984
- 1984-08-23 JP JP59175744A patent/JPS6152917A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5668519A (en) * | 1979-11-07 | 1981-06-09 | Toshiba Corp | Width control device of rolling mill |
| JPS5758910A (en) * | 1980-09-26 | 1982-04-09 | Sumitomo Metal Ind Ltd | Controlling method for sheet breadth in continuous hot rolling mill |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003001311A (en) * | 2001-06-21 | 2003-01-07 | Nisshin Steel Co Ltd | Plate width control method in cold tandem rolling |
| KR100543300B1 (en) * | 2001-11-09 | 2006-01-20 | 주식회사 포스코 | Width adjusting method and width adjusting device of rolled material |
| EP2998040A1 (en) * | 2014-09-17 | 2016-03-23 | Primetals Technologies Germany GmbH | Width adjustment in a finishing train |
| WO2016041746A1 (en) * | 2014-09-17 | 2016-03-24 | Primetals Technologies Germany Gmbh | Width setting on a finishing train |
| CN106687229A (en) * | 2014-09-17 | 2017-05-17 | 首要金属科技德国有限责任公司 | Width setting on the finishing train |
| RU2706254C2 (en) * | 2014-09-17 | 2019-11-15 | Прайметалз Текнолоджиз Джермани Гмбх | Width adjustment in finishing train |
| US10596608B2 (en) | 2014-09-17 | 2020-03-24 | Primetals Technologies Germany Gmbh | Width setting on a finishing train |
| US11318511B2 (en) | 2014-09-17 | 2022-05-03 | Primetals Technologies Germany Gmbh | Width setting on a finishing train |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0324283B2 (en) | 1991-04-02 |
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