JPS62214805A - Method for preventing camber for rolling material - Google Patents
Method for preventing camber for rolling materialInfo
- Publication number
- JPS62214805A JPS62214805A JP61056669A JP5666986A JPS62214805A JP S62214805 A JPS62214805 A JP S62214805A JP 61056669 A JP61056669 A JP 61056669A JP 5666986 A JP5666986 A JP 5666986A JP S62214805 A JPS62214805 A JP S62214805A
- Authority
- JP
- Japan
- Prior art keywords
- camber
- mill train
- tension
- tension applying
- finishing mill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 17
- 238000005096 rolling process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 11
- 238000005098 hot rolling Methods 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、熱間ｉｆ延シラインおける圧延材のキャンバ
防止方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for preventing camber of a rolled material in a hot if rolling line.
（ロ）従来技術
熱間圧延ラインにおいては、圧延材の案内不良や圧延機
のレベリング不良等によって、圧延材にキャンバが発生
する。(b) Prior art In hot rolling lines, camber occurs in the rolled material due to poor guidance of the rolled material, faulty leveling of the rolling mill, and the like.
圧延材の中間部および後端部に発生したキャンバについ
ては、仕上圧延機列における各スタンドのレベリング制
御ｆ１１（ワーク・ロールの左右の間隙を調節すること
）によって修正または防止を図ることができる。Camber occurring at the intermediate and rear end portions of the rolled material can be corrected or prevented by leveling control f11 (adjusting the left and right gaps between the work rolls) of each stand in the finishing rolling mill row.
しかし、圧延材の先端部については、スタンド間を通過
するときに無張力状態になり、先端部の蛇行またはオフ
センタに起因するキャンバが発生する。無張力状態での
レベリングｍｌｊ＃Ｊは非常に困雌である。However, the leading end of the rolled material becomes tensionless when passing between the stands, and camber occurs due to meandering or off-centering of the leading end. Leveling mlj#J under no tension is extremely difficult.
さらに１通常は粗圧延材の先鋭端部にキャンバが生じて
いるため、仕土圧延ｅｄても、材料先後端部のキャンバ
は、最後まで修正しきれずに残る。Furthermore, since camber normally occurs at the sharp end of a rough rolled material, even after finishing rolling, the camber at the leading and trailing ends of the material remains uncorrected until the end.
（ハ）発明が解決しようとする問題点
本発明が解決しようとする問題点は、熱間圧延ラインに
おいて、圧延材の先端部のキャンバの発生防とおよびキ
ャンバ修正のできる方法を得ることにある。(c) Problems to be solved by the invention The problems to be solved by the invention are to provide a method that can prevent the occurrence of camber at the tip of a rolled material and correct the camber in a hot rolling line. .
に）問題点を解決するための手段
本発明の圧延材のキャンバ防出方法は、粗圧延機列と仕
上圧延機列とからなる熱間圧延ラインにおいて、仕上圧
延機列の各スタンド間に張力付加装置を設け、各スタン
ドを通過した直後の圧延材の先端に張力付加装置によっ
て張力を順次付加することによって、と記問題点を解決
している。2) Means for solving the problem The method for preventing camber of rolled material of the present invention is to prevent tension between each stand of the finishing mill row in a hot rolling line consisting of a rough rolling mill row and a finishing rolling mill row. The above problem is solved by providing an additional device and sequentially applying tension to the tip of the rolled material immediately after passing through each stand.
（ホ）実施例
本発明の方法を第１図を参照して説明する。熱間圧延ラ
イン１は、粗圧延機列２と仕上圧延機列６とからできて
いる。本発明の方法では、仕上圧延機列６０人側にキャ
ンバ測定器４をまた仕上圧延機列６の各スタンド６１間
に張力付加装置５を設ける。(e) Example The method of the present invention will be explained with reference to FIG. The hot rolling line 1 is made up of a rough rolling mill row 2 and a finishing mill row 6. In the method of the present invention, a camber measuring device 4 is provided on the 60-man side of the finishing mill row, and a tension applying device 5 is provided between each stand 61 of the finishing rolling mill row 6.
キャンバ測定器４の出力は、制御装置６に入力される。The output of the camber measuring device 4 is input to the control device 6.
仕上圧延機列６の各スタンド３１に設置した荷重検出器
６２の出力は制御装置６に入力される。制御装置６から
のｔｆｆ制御信号が各張力付加装置５にそれぞれ人力さ
れる。The output of the load detector 62 installed in each stand 31 of the finishing mill row 6 is input to the control device 6. A tff control signal from the control device 6 is manually applied to each tension applying device 5, respectively.
第２図から第５図までを参照して１本発明の方法に用い
る張力付加装置５について説明する。第２図に示す張力
付加装置５は、ピンチロールである。ピンチロールは各
スタンド３１の出側近くに設け１位置は固定とする。ピ
ンチロールは、制御装置６からの制御信号によって、ロ
ール回転数。The tension applying device 5 used in the method of the present invention will be explained with reference to FIGS. 2 to 5. The tension applying device 5 shown in FIG. 2 is a pinch roll. The pinch roll is provided near the exit side of each stand 31, and one position is fixed. The rotation speed of the pinch roll is controlled by a control signal from the control device 6.
ロール・ギャップの開閉およびロール・ギャップの左右
の差（レベリング）が制御される。The opening and closing of the roll gap and the difference (leveling) between the left and right roll gaps are controlled.
第６図の張力付加装置５は、循環ベルトである。The tension applying device 5 in FIG. 6 is a circulating belt.
循環ベルトは、各スタンド６１間に設置され、ステンレ
ス等の耐熱性ベルトからできていて、圧延材の走行ライ
ンを挾んで無端状に張り渡されたものである。循環ベル
トは、制御装置６からの制御信号によってベルトの循環
スピード、ベルト・ギャップの開閉が制−される。The circulation belt is installed between each stand 61, is made of a heat-resistant belt such as stainless steel, and is stretched endlessly across the running line of the rolled material. The circulation speed of the circulation belt and the opening and closing of the belt gap are controlled by control signals from the control device 6.
８４図の張力付加装置５はクランプである。クランプは
開閉と各スタンド３１間の往復移動をする。このクラン
プの動作は１ｆｆｌＪ６［１ｆｆｌ置６によってなされ
る。このクランプの一列の詳細を第５図に示す。The tension applying device 5 in FIG. 84 is a clamp. The clamp opens and closes and moves back and forth between each stand 31. This clamp operation is performed by 1fflJ6 [1ffl position 6]. Details of this row of clamps are shown in FIG.
第６図に示すように、各スタンド３１間に設けた張力付
加装置５により、圧延材７のキャンバが順次修正される
とともに、キャンバの発生も防止される。As shown in FIG. 6, the tension applying device 5 provided between each stand 31 sequentially corrects the camber of the rolled material 7 and also prevents the occurrence of camber.
張力付加ｇｉｃｒａ５は１０ Ｌｌ 〜１５０ ｔｏｎ
の圧下荷重をかけながら圧延材の先端部に０．５〜１．
５Ｋｐ／ｒＩＲ２の張力を発生させる。張力が０．５
Ｋｇ ／ ｗｍ２ 以下ではキャンバ発生防止効果がな
い。張力が１．５にり／Ｉ！ｌ１１２ 以上では寸法
精度の劣化、材料破断のおそれがある。Tension addition gicra5 is 10 Ll ~ 150 tons
While applying a rolling load of 0.5 to 1.
A tension of 5 Kp/rIR2 is generated. Tension is 0.5
If it is less than Kg/wm2, there is no effect of preventing the occurrence of camber. Tension is 1.5/I! If it exceeds l112, there is a risk of deterioration of dimensional accuracy and material breakage.
（へ）効 果 本発明の方法によれば、第７図に示すように。(to) Effect According to the method of the invention, as shown in FIG.
キャンバ発生Ｒｅ従来法にくらべて約１１５以下に低減
することができる。The camber generation Re can be reduced to about 115 or less compared to the conventional method.
本発明の方法は、厚板熱間圧延機、または薄板冷間圧延
機にも適用できる。The method of the invention can also be applied to thick plate hot rolling mills or thin plate cold rolling mills.
第１図は本発明の詳細な説明図。第２図から第４図まで
は張力付加装置の各種実施例の説明図。
第５図は第４図の張力付加装置の詳細側面図。第６図は
キャンバ修正動作説明図。第７図は本発明の方法の効果
を示すグラフ。
１：熱間圧延ライン ２：粗圧延機列６：仕上圧延機
列 ４：キャンバ測定器５：張力は別装置。
第６図FIG. 1 is a detailed explanatory diagram of the present invention. FIGS. 2 to 4 are explanatory diagrams of various embodiments of the tension applying device. 5 is a detailed side view of the tensioning device of FIG. 4; FIG. FIG. 6 is an explanatory diagram of camber correction operation. FIG. 7 is a graph showing the effect of the method of the present invention. 1: Hot rolling line 2: Rough rolling mill row 6: Finishing rolling mill row 4: Camber measuring device 5: Tension is measured by a separate device. Figure 6
Claims (1)
おいて、仕上圧延機列の各スタンド間に張力付加装置を
設け、各スタンドを通過した直後の圧延材の先端に張力
付加装置によって張力を順次付加することを特徴とする
圧延材のキャンバ防止方法。In a hot rolling line consisting of a rough rolling mill row and a finishing rolling mill row, a tensioning device is installed between each stand of the finishing rolling mill row, and the tensioning device applies tension to the tip of the rolled material immediately after passing through each stand. A camber prevention method for rolled material, characterized by sequentially adding camber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61056669A JPS62214805A (en) | 1986-03-14 | 1986-03-14 | Method for preventing camber for rolling material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61056669A JPS62214805A (en) | 1986-03-14 | 1986-03-14 | Method for preventing camber for rolling material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62214805A true JPS62214805A (en) | 1987-09-21 |
Family
ID=13033824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61056669A Pending JPS62214805A (en) | 1986-03-14 | 1986-03-14 | Method for preventing camber for rolling material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62214805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0484607A (en) * | 1990-07-27 | 1992-03-17 | Kawasaki Steel Corp | Manufacture of steel plate with differential thickness in width direction |
-
1986
- 1986-03-14 JP JP61056669A patent/JPS62214805A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0484607A (en) * | 1990-07-27 | 1992-03-17 | Kawasaki Steel Corp | Manufacture of steel plate with differential thickness in width direction |
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