JPH0669564B2 - Strip shape control method - Google Patents
Strip shape control methodInfo
- Publication number
- JPH0669564B2 JPH0669564B2 JP60119933A JP11993385A JPH0669564B2 JP H0669564 B2 JPH0669564 B2 JP H0669564B2 JP 60119933 A JP60119933 A JP 60119933A JP 11993385 A JP11993385 A JP 11993385A JP H0669564 B2 JPH0669564 B2 JP H0669564B2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- rolling
- constant
- elongation
- shape
- 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
Links
Landscapes
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、巻付け異速圧延においてストリップの形状を
制御する方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for controlling the shape of a strip in winding differential rolling.
［従来の技術］ 第４、５図は巻付け異速圧延装置の一例を示すもので、
周速を異にする１対のワークロール1,2にストリップ３
をＳ字状に巻き付け、前記ワークロール1,2の軸端に設
けた軸箱４に圧下装置５による圧下力を掛けることによ
りストリップ３の圧延を行うようにしている。[Prior Art] FIGS. 4 and 5 show an example of a rolling differential speed rolling device.
Strip 3 on a pair of work rolls 1 and 2 with different peripheral speeds
Is wound in an S shape, and the strip 3 is rolled by applying a reduction force by a reduction device 5 to a shaft box 4 provided at the shaft ends of the work rolls 1 and 2.
［発明が解決しようとする問題点］ しかし、上記したような圧延装置において、圧下力を一
定に保持して伸び率（％）即ち入側板厚をH0、出側板厚
をH1として を一定にするような圧延を行った場合、ワークロール1,
2の熱によるロールクラウンの変化及び圧下力によるロ
ールベンディング等によってストリップ３に中伸び、あ
るいは耳伸び等の形状不良を生じる問題がある。また、
巻付けを行なわない普通圧延においては、第１図に示す
ように圧下力を変化させると、伸び率が変化し、伸び率
一定の条件を必要とする場合圧下力を調整できない。従
って、この場合形状を制御するには圧下力以外の作用力
をロールに与える必要がある。[Problems to be Solved by the Invention] However, in the rolling apparatus as described above, the rolling force is kept constant and the elongation (%), that is, the inlet side plate thickness is H 0 and the outlet side plate thickness is H 1. Work roll 1,
There is a problem in that the strip 3 is deformed in the middle due to the change of the roll crown due to the heat of 2 and the roll bending due to the rolling force, or the strip 3 has a defective shape such as the edge stretch. Also,
In ordinary rolling without winding, if the reduction force is changed as shown in FIG. 1, the elongation changes, and the reduction force cannot be adjusted if a condition of constant elongation is required. Therefore, in this case, in order to control the shape, it is necessary to apply an acting force other than the rolling force to the roll.
本発明は、上記実情に鑑みてなしたもので、巻付け異速
圧延時に生じる伸び率一定の範囲を利用して圧下力を制
御することによりストリップの形状を制御することを目
的としている。The present invention has been made in view of the above circumstances, and it is an object of the present invention to control the shape of a strip by controlling a rolling force by utilizing a range of a constant elongation rate that occurs during different speed rolling.
［問題点を解決するための手段］ 本発明は、上記技術的課題を解決しようとしたもので、
周速を異にする１対のワークロールにストリップを巻付
け、ストリップの目標伸び率に異速比を一致させた際の
伸び率一定範囲において、伸び率を一定に保持したまま
の状態でストリップの中伸び、或いは耳伸びを示す急峻
度を変えるよう圧下力を調整することを特徴とするスト
リップ形状制御方法、に係るものである。[Means for Solving Problems] The present invention is intended to solve the above technical problems,
The strip is wound around a pair of work rolls with different peripheral speeds, and strips are kept in a constant elongation range within a constant elongation range when the different elongation ratio matches the target elongation rate of the strip. The present invention relates to a strip shape control method, characterized in that the rolling force is adjusted so as to change the steepness indicating the middle stretch or the ear stretch.
［作用］ 従って、本発明によれば、伸び率一定範囲を利用して、
圧下力の調整により伸び率を一定に保持したままの状態
で急峻度を変えてストリップの形状を制御することがで
きる。[Operation] Therefore, according to the present invention, by utilizing the constant elongation range,
By adjusting the rolling force, it is possible to control the shape of the strip by changing the steepness while keeping the elongation constant.
［実施例］ 以下本発明の実施例を図面を参照して説明する。Embodiments Embodiments of the present invention will be described below with reference to the drawings.
第１図は、板厚0.5mm、異速比１％及び２％の条件で巻
付け異速圧延装置により圧延を行った実験例を示すもの
で、図示のように巻付け異速圧延では、異速比と伸び率
が一致する状態において圧下力が垂直に立ち上がり、圧
下力に対して伸び率が一定に保たれる伸び率一定範囲
α，α′が存在する。この伸び率一定範囲α，α′は、
第５図におけるワークロール1,2に対するストリップ３
巻付け部の摩擦係数μ、巻付け角θ０，θ１が大きい程
大きい。FIG. 1 shows an experimental example in which rolling was performed by a winding different speed rolling device under the conditions of a plate thickness of 0.5 mm and different speed ratios of 1% and 2%. In the state where the different speed ratio and the elongation rate match, the rolling force rises vertically, and there exists a constant elongation rate range α, α'where the elongation rate is kept constant with respect to the rolling force. This constant elongation rate range α, α ′ is
Strip 3 for work rolls 1 and 2 in Fig. 5
The larger the friction coefficient μ of the winding portion and the winding angles θ 0 and θ 1 , the larger the winding coefficient.
又、第２図はストリップ３の中伸び、或いは耳伸び等の
波の形状を示したもので、この波の１ピッチｌと波の高
さｈの関係から、急峻度（％）即ち を求める。巻付け異速圧延において、この急峻度と圧下
力の関係を第３図に示す。伸び率一定範囲α或いはα′
において圧下力を制御することにより、伸び率を変化さ
せることなくストリップ３の形状を中伸びと耳伸びの状
態に反転させることができ、よってこれを利用すること
によりストリップ３の形状を効果的に制御できることが
判る。これは圧下力を変化させると第４図に示すワーク
ロール1,2がベンディングされ形状が変化するからであ
る。Further, FIG. 2 shows the shape of the wave such as the middle extension or the edge extension of the strip 3, and from the relationship between 1 pitch 1 of this wave and the height h of the wave, the steepness (%), that is, Ask for. FIG. 3 shows the relationship between the steepness and the rolling force in the winding different speed rolling. Elongation constant range α or α ′
The shape of the strip 3 can be reversed between the middle stretch and the edge stretch without changing the elongation rate by controlling the rolling force in the above. Therefore, by utilizing this, the shape of the strip 3 can be effectively changed. It turns out that it can be controlled. This is because the work rolls 1 and 2 shown in FIG. 4 are bent to change the shape when the rolling force is changed.
従って、巻付け異速圧延に際し、目標のストリップ３の
伸び率に合わせてワークロール1,2の異速比を一致させ
ることにより、伸び率一定範囲内において圧下力を自在
に変えてストリップ３の形状を制御することができる。
又、伸び率を変えたいときには、圧下力の変更操作と同
時に異速比を目標の伸び率と一致するように変更操作す
ることにより、前記と同様に形状制御を行うことができ
る。Therefore, at the time of winding different speed rolling, by matching the different speed ratios of the work rolls 1 and 2 in accordance with the target elongation rate of the strip 3, the rolling force of the strip 3 can be freely changed within the constant elongation rate range. The shape can be controlled.
When it is desired to change the elongation rate, the shape control can be performed in the same manner as described above by simultaneously changing the rolling force and changing the different speed ratio so as to match the target elongation rate.
［発明の効果］ 上記したように、本発明のストリップ形状制御装置によ
れば、巻付け異速圧延における伸び率一定範囲を利用し
て、圧下力をその範囲内において調整することにより、
伸び率を一定に保持したままの状態で急峻度を変え、ス
トリップの形状を制御することができ、よって高品質の
ストリップを圧延できる優れた効果を奏し得る。[Effects of the Invention] As described above, according to the strip shape control device of the present invention, by utilizing the constant range of the elongation rate in the winding differential speed rolling, by adjusting the rolling force within the range,
The shape of the strip can be controlled by changing the steepness while keeping the elongation constant, and thus an excellent effect of rolling a high quality strip can be obtained.
第１図は圧下力と伸び率の関係を示す実験結果のグラ
フ、第２図はストリップのうねりの急峻度を説明するた
めの説明図、第３図は急峻度と圧下力の関係を示すグラ
フ、第４図は巻付け異速圧延装置の一例を示す説明用正
面図、第５図は第４図の側面図である。 1,2はワークロール、３はストリップ、４は軸箱、５は
圧下装置を示す。FIG. 1 is a graph of experimental results showing the relationship between the rolling force and elongation, FIG. 2 is an explanatory diagram for explaining the steepness of the undulation of the strip, and FIG. 3 is a graph showing the relationship between the steepness and the rolling force. FIG. 4 is an explanatory front view showing an example of a rolling differential speed rolling device, and FIG. 5 is a side view of FIG. 1 and 2 are work rolls, 3 is a strip, 4 is a shaft box, and 5 is a reduction device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩藤 秀一 広島県福山市伊勢ヶ丘５−７―１ Ｄ441 (72)発明者 出石 智也 広島県福山市伊勢ヶ丘６−４ 日本鋼管株 式會社第一寮内 (72)発明者 藤田 文夫 東京都稲城市大丸2144―13 (56)参考文献 特開 昭60−92004（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuichi Iwafuji 5-7-1 Isegaoka, Fukuyama City, Hiroshima Prefecture D441 (72) Inventor Tomoya Izushi 6-4 Isegaoka, Fukuyama City, Hiroshima Prefecture Nippon Steel Pipe Co., Ltd. In the dormitory (72) Inventor Fumio Fujita 2144-13 Daimaru, Inagi-shi, Tokyo (56) Reference JP-A-60-92004 (JP, A)
Claims (1)
リップを巻付け、ストリップの目標の伸び率に異速比を
一致させた際の伸び率一定範囲において、伸び率を一定
に保持したままの状態でストリップの中伸び、或いは耳
伸びを示す急峻度を変えるよう圧下力を調整することを
特徴とするストリップ形状制御方法。1. A strip is wound around a pair of work rolls having different peripheral speeds, and the stripping rate is kept constant in a range where the stripping rate is constant when the strip speed is made to match the target stripping rate. A strip shape control method comprising adjusting a rolling force so as to change a steepness indicating a middle extension or an edge extension of a strip in the as-is state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60119933A JPH0669564B2 (en) | 1985-05-30 | 1985-05-30 | Strip shape control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60119933A JPH0669564B2 (en) | 1985-05-30 | 1985-05-30 | Strip shape control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61276703A JPS61276703A (en) | 1986-12-06 |
| JPH0669564B2 true JPH0669564B2 (en) | 1994-09-07 |
Family
ID=14773758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60119933A Expired - Lifetime JPH0669564B2 (en) | 1985-05-30 | 1985-05-30 | Strip shape control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0669564B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2730849B2 (en) * | 1993-08-03 | 1998-03-25 | 光洋鉄線株式会社 | Apparatus and method for manufacturing wire connecting band |
| CN107552573B (en) * | 2017-07-07 | 2019-06-14 | 首钢京唐钢铁联合有限责任公司 | Method and device for controlling internal stress of high-strength steel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6092004A (en) * | 1983-10-27 | 1985-05-23 | Ishikawajima Harima Heavy Ind Co Ltd | Strip surface roughness control method |
-
1985
- 1985-05-30 JP JP60119933A patent/JPH0669564B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61276703A (en) | 1986-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |