JPS60148615A - Control device of rolling mill - Google Patents
Control device of rolling millInfo
- Publication number
- JPS60148615A JPS60148615A JP59003264A JP326484A JPS60148615A JP S60148615 A JPS60148615 A JP S60148615A JP 59003264 A JP59003264 A JP 59003264A JP 326484 A JP326484 A JP 326484A JP S60148615 A JPS60148615 A JP S60148615A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- rolling
- rolling mill
- lock
- drive side
- 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
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)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
(2)
〔発明の技術分野〕
本発明は圧延機の制御装置、特に熱間圧延機など金属を
圧延する圧延機において、被圧延材を板厚方向に圧延す
る際に生ずる蛇行を自動調整しうる圧延機の制御装置に
関する。[Detailed Description of the Invention] (2) [Technical Field of the Invention] The present invention relates to a control device for a rolling mill, particularly in a rolling mill that rolls metal such as a hot rolling mill, when rolling a material to be rolled in the thickness direction. The present invention relates to a control device for a rolling mill that can automatically adjust meandering that occurs in rolling mills.
圧延機で熱間圧延等を行なう場合、圧下開度がドライブ
側とワーク側とで違っていたり、被圧延材がロールセン
タからロール軸方向にすれて圧延この被圧延材の蛇行説
明図である。第1図(a)は圧延ローラの断面図で、1
は圧延ロール、2は被圧延材である。SD、SW はそ
れぞれドライブ側、ワーク側の圧下開度、pD、pw
はそれぞれドライブ側、ワーク側の荷・重である。SW
>SDの場合、被圧延材2のワーク側の出厚hWはドラ
イブ側の出厚hD より大きくなる。従ってドライブ側
の先進率fD、後進率bDは、ワーク側の先進率fw、
後進率bWより大きくなる。これらの関係をそれぞれ第
1図(b) 、 (c) 、 (d)に示す。この結果
被圧延材の人材速度はドライブ側よりワーク側の方が速
くなり、逆に用材速度はドライブ側よりワーク側の方が
遅くなる。こうして被圧延材は圧延機の人材側および用
材側で矢印Aに示すようにワーク側に蛇行することにな
る。When performing hot rolling etc. in a rolling mill, the rolling opening degree may be different between the drive side and the work side, or the material to be rolled may slip from the roll center in the direction of the roll axis. . FIG. 1(a) is a cross-sectional view of the rolling roller.
2 is a rolling roll, and 2 is a material to be rolled. SD and SW are the reduction opening degree, pD, and pw on the drive side and work side, respectively.
are the load and weight on the drive side and work side, respectively. SW
>SD, the protrusion thickness hW of the workpiece side of the rolled material 2 is larger than the protrusion thickness hD of the drive side. Therefore, the advance rate fD and reverse rate bD on the drive side are the advance rate fw on the work side,
It becomes larger than the backward movement rate bW. These relationships are shown in FIGS. 1(b), (c), and (d), respectively. As a result, the rolling material speed is faster on the work side than on the drive side, and conversely, the rolling material speed is slower on the work side than on the drive side. In this way, the material to be rolled winds toward the workpiece side as shown by arrow A on the personnel side and material side of the rolling mill.
一般に被圧延材は圧延機の人材側のサイドガイドによっ
て被圧延材2の中心が圧延ロール1の中心にくるようζ
こ送られて圧延されるが、この被圧延材2の中心が圧延
ロール1の中心からずれた場合は、ドライブ側とワーク
側とが受ける圧延反力に差が生じるため、Sw=SDに
設定してあったとしても圧延機の弾性変形のためSw’
ySnとなり前述と同様の過程で蛇行が生じる。Generally, the material to be rolled is placed in such a way that the center of the material 2 is aligned with the center of the rolling roll 1 by side guides on the personnel side of the rolling mill.
If the center of the rolled material 2 deviates from the center of the rolling roll 1, there will be a difference in the rolling reaction force received by the drive side and the work side, so Sw = SD is set. Even if Sw'
ySn, and meandering occurs in the same process as described above.
以上述べた蛇行原因は従来不明であったため、自動制御
を行なうことができす、従来はオペレータが経験により
手動で片側圧下を行ない圧延を継続していた。しかしこ
のような手動修正では、修正動作が湖<、修正量も正確
でないため、被圧延材がサイドガイドに衡突するなどの
事故が発生し、品質上および操業上の問題を生じていた
。Since the cause of the meandering described above was previously unknown, automatic control can be performed. Conventionally, an operator manually performed one-sided rolling based on experience and continued rolling. However, in such manual correction, the corrective action is not accurate and the corrective amount is not accurate, resulting in accidents such as the rolled material colliding with the side guide, resulting in quality and operational problems.
そこで本発明は、自動的に被圧延材の蛇行を防止するこ
とができる圧延機の制御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 control device for a rolling mill that can automatically prevent meandering of a material to be rolled.
本発明の特徴は、圧延機のドライブ側およびワーク側そ
れぞれの荷重および圧下開度から各側の出厚をゲージメ
ータ式により演算し、被圧延材噛込後の安定した任意の
時点なロックオンタイミングとしてその時点での各側の
出厚を基準値として記憶しておき、との各側の基準値と
各側の出厚とのそれぞれの偏差をめ、この各側の偏差の
差を更にとって出厚ずれ量とし、□との出厚ずれ量があ
らかじめ経験則によって設定された出厚ずれ量基準とな
るように圧延機の各側の圧下開度を制御することにより
被圧延材が蛇行しないように自動制御することにある。The feature of the present invention is that the thickness of each side is calculated using a gauge meter method based on the load and rolling opening of the drive side and workpiece side of the rolling mill, and lock-on is performed at any stable point after the rolled material is bitten. As a timing, memorize the protrusion thickness of each side at that time as a reference value, calculate the deviation between the reference value of each side and the protrusion thickness of each side, and update the difference between the deviations of each side. By controlling the rolling opening on each side of the rolling mill so that the amount of deviation in thickness from □ becomes the standard for deviation in thickness, which is set in advance according to empirical rules, the material to be rolled is meandering. The goal is to automatically control the situation so that it does not occur.
以下本発明を第2図に示す一実施例のブロック図に基づ
いて詳述する。圧延機10のドライブ側圧下開度SD
および荷重PDはドライブ側出厚演算装置31に入力さ
れ、ゲージメータ式によってドライブ側出厚hDが演算
される。開閉器32はロックオンタイミングで瞬時にO
Nとなる開閉器で、これによってロックオンタイミング
におけるドライブ側出厚hnr、 (ドライブ側出厚ロ
ックオン値)が記憶装置1 :3gに記1意される。減
算器34ではドライブ側出厚hD とドライブ側出厚ロ
ックオン値hDLとが減算され、ドライブ側出厚偏差△
hD が演算される。The present invention will be described in detail below based on a block diagram of an embodiment shown in FIG. Drive side rolling opening degree SD of the rolling mill 10
The load PD is input to the drive side protrusion thickness calculating device 31, and the drive side protrusion thickness hD is calculated using a gauge meter method. The switch 32 instantly turns O at the lock-on timing.
With this switch, the drive side protrusion thickness hnr (drive side protrusion thickness lock-on value) at the lock-on timing is recorded in the storage device 1:3g. The subtractor 34 subtracts the drive side thickness hD and the drive side thickness lock-on value hDL, and the drive side thickness deviation △
hD is calculated.
一方圧延a10のワーク側圧下開度Swおよび荷重PW
はワーク側出厚@舅装置41に入力され、ゲージメータ
式によってワーク側出厚hWが演算される。開閉器42
はロックオンタイミングで瞬時にONとなる開閉器で、
これによってロックオンタイミングにおけるワーク側出
厚hwL(ワーク側出厚ロックオン値)が記憶装置43
に記憶される0減算器44ではワーク側出厚hw とワ
ーク側出厚ロックオン値hWLとが減算され、ワーク側
出厚偏差△hwが演算される。On the other hand, work side rolling opening Sw and load PW of rolling a10
is input to the workpiece side protrusion thickness @ end device 41, and the workpiece side protrusion thickness hW is calculated by a gauge meter type. Switch 42
is a switch that turns on instantly at lock-on timing.
As a result, the workpiece side protrusion thickness hwL (workpiece side protrusion thickness lock-on value) at the lock-on timing is stored in the storage device 43.
A zero subtractor 44 stored in the subtractor 44 subtracts the workpiece side protrusion thickness hw and the workpiece side protrusion thickness lock-on value hWL, and calculates the workpiece side protrusion thickness deviation Δhw.
ドライブ側出厚偏差△hD からワーク側出厚偏差△h
W が減算器45により減算され、出厚ずれ量△hが算
出される。この出厚ずれ量△hは制御演算装置間に入力
される。まず減算器51では、出厚ずれ量基準Δh r
efから出厚ずれ量△hが減算され、出厚ずれ蓋偏差δ
hが出力される。この出厚すれ量偏差δhは換算装置5
2によって圧下開度ずれ蓋△So に変換され、PID
コントローラ53はこの圧下開度ずれ量△So を入力
として圧下開度修正量δSoを演算する◇演算器54は
圧下開度修正量δS。Drive side thickness deviation △hD to workpiece side thickness deviation △h
W is subtracted by the subtractor 45, and the amount of thickness deviation Δh is calculated. This thickness deviation amount Δh is inputted between the control and arithmetic units. First, in the subtracter 51, the reference thickness deviation amount Δhr
The amount of deviation in thickness △h is subtracted from ef, and the deviation in thickness δ is obtained.
h is output. This protrusion thickness deviation amount deviation δh is calculated by the conversion device 5
2, it is converted to the reduction opening degree deviation △So, and PID
The controller 53 inputs this roll-down opening deviation amount ΔSo and calculates the roll-down opening correction amount δSo.◇The calculator 54 calculates the roll-down opening correction amount δS.
を入力としてドライブ側圧下開度修正童δS、p、re
fを演算し、この値から符号反転器55によってワーク
側圧上開度修正量δSw+refが演算される。これら
の両側の圧下開度修正量δSD+refおよびδSW+
r8fはそれぞれ両側の油圧位置制側l装f61および
62に入力され、ドライブ側圧下開度調整値δSDおよ
びワーク側圧下開度調整値δSWとして圧延11100
両側の圧下開度を制御し、被圧延材の蛇行8制御する0
以上のような構成をもった制御系の作用について以下に
詳述する。ドライブ側出厚hDおよびワーク四出厚hw
はそれぞれ式(1)および式(2)に示すゲージメータ
式に基づいて、ドライブ側出厚演算装置3】およびワー
ク側出厚演算装置41によって演算される。As input, drive side reduction opening correction value δS,p,re
f is calculated, and from this value, the work side pressure upward opening correction amount δSw+ref is calculated by the sign inverter 55. These reduction opening correction amounts δSD+ref and δSW+ on both sides
r8f is input to the hydraulic position control side units f61 and 62 on both sides, respectively, and the rolling 11100 is set as the drive side rolling opening adjustment value δSD and the work side rolling opening adjustment value δSW.
The operation of the control system configured as above, which controls the rolling opening degree on both sides and the meandering of the material to be rolled, will be described in detail below. Drive side protrusion thickness hD and workpiece protrusion thickness hw
are calculated by the drive side protrusion thickness calculation device 3 and the workpiece side protrusion thickness calculation device 41 based on the gauge meter formulas shown in equations (1) and (2), respectively.
ここで、
81) ニドライブ側圧下開度
Sw:ワーク側圧下開度
PDニドライブ11411荷重
Pw:ワーク側荷重
MDニドライブ側ミル定数
Mw:ワーク側ミル定数
gDニドライブ側ロールたわみ補正係数gw:ワーク側
ロールたわみ補正係数
である。ロールたわみ補正係数は被圧延材の圧延圧力に
より圧延機ロールのたわみ圧延開度が変化するのを補正
するための係数である。Here, 81) Nidrive side rolling opening Sw: Work side rolling opening PD Nidrive 11411 load Pw: Work side load MD Nidrive side mill constant Mw: Work side mill constant gD Nidrive side roll deflection correction coefficient gw: This is the work side roll deflection correction coefficient. The roll deflection correction coefficient is a coefficient for correcting changes in the deflection rolling opening degree of the rolling mill rolls due to the rolling pressure of the material to be rolled.
被圧延材が圧延機ζこ噛込後のロックオンタイミングで
のドライブ側出厚ロックオン値hDLおよびワーク側出
厚ロックオン値hWLはそれぞれ式(3)および式(4
)によって表わされる。The drive side protrusion thickness lock-on value hDL and workpiece side protrusion thickness lock-on value hWL at the lock-on timing after the rolled material is bitten by the rolling mill ζ are calculated by formula (3) and formula (4), respectively.
).
ここで、
SDL ニドライブ側ロックオン圧下開度5VIIL
:ワーク側ロックオン圧下開度PDL ニドライブ側ロ
ックオン荷重
PwI、:ワーク側ロックオン荷重
である。才たロックオンタイミング後のドライブ側出厚
偏差△hD およびワーク側出厚偏差Δhwはそれぞれ
式(5)および式(6)で表わされる。Here, SDL Nidrive side lock-on compression opening degree 5VIIL
: Work side lock-on reduction opening degree PDL Nidrive side lock-on load PwI, : Work side lock-on load. The drive side protrusion thickness deviation ΔhD and the workpiece side protrusion thickness deviation Δhw after the long lock-on timing are expressed by equations (5) and (6), respectively.
△h、、 = hDhDL ・・・・・・・・・・・・
・・・・・・・・・ (5)Δhw= hw hwx、
・・・・・・・・・・・・・・・・・・・・・ (6)
被圧延材の蛇行の原因は、両側の出厚偏差△hDおよび
ΔhW の差によるものである。そこでこの差に相当す
る出厚ずれ曽△hが式(7)により演算される。△h,, = hDhDL ・・・・・・・・・・・・
・・・・・・・・・ (5) Δhw= hw hwx,
・・・・・・・・・・・・・・・・・・・・・ (6)
The cause of the meandering of the rolled material is due to the difference in the thickness deviations ΔhD and ΔhW on both sides. Therefore, the thickness deviation so Δh corresponding to this difference is calculated using equation (7).
△h=ΔhD−Δhw ・・・・・・・・・・・・・・
・・・・ (7)そこで被圧延材の蛇行を防止するため
に、出厚ずれ蓋△hが出厚ずれ量基準△1lrefとな
るように制御を行なう。このため式(8)により出厚ず
れ童偏差δhをめる。△h=ΔhD−Δhw ・・・・・・・・・・・・・・・
(7) Therefore, in order to prevent meandering of the rolled material, control is performed so that the thickness deviation cover Δh becomes the thickness deviation reference Δ1lref. For this reason, the output thickness deviation δh is calculated using equation (8).
δh=Δhref−Δh ・・・・・・・・・・・・・
・・・・・ (81なお、ここで出厚ずれ量基準Δhr
efは被圧延材の板厚、板幅、鋼種、圧延機によって経
験的に定まる定数である。δh=Δhref−Δh・・・・・・・・・・・・・・・
(81) Here, the thickness deviation standard Δhr
ef is a constant determined empirically depending on the plate thickness, plate width, steel type, and rolling mill of the material to be rolled.
絖いてこの出厚ずれ童偏差δhは、換算装置t52によ
り式(9)の演算が施され、圧下開度すれ量△S。The deviation δh of the thickness deviation is calculated by the equation (9) by the conversion device t52, and is calculated as the reduction opening deviation amount ΔS.
に変換される。is converted to
△So=に、・δh ・・・・・・・・・・・・・・・
・・・・・・ (9)ここでに1 は圧延機のミル定数
および被圧延材の塑性係数によって定まる定数である。△So=ni,・δh ・・・・・・・・・・・・・・・
(9) Here, 1 is a constant determined by the mill constant of the rolling mill and the plasticity coefficient of the material to be rolled.
1)IDコントローラ53は通常の比例・積分・微分動
作を行なうコントローラであり、圧下開度ずれ量△So
に式a〔の演算を施して圧下開度修正量δS。1) The ID controller 53 is a controller that performs normal proportional, integral, and differential operations, and is a controller that performs normal proportional, integral, and differential operations.
The reduction opening correction amount δS is obtained by calculating the formula a.
を得る。get.
ここで
’r、 + ’r* l rp、 :定数8ニラプラス
演算子
である。Here, 'r, + 'r* l rp, : constant 8 nila plus operator.
圧下開度修正量δSoをどちらか一方の側に加えた場合
、被圧延材の平均出厚が変化する。そこで平均出厚に変
化のないよう両側別々の圧下開度修正量に分割し、一方
には加え、他方には減するということを行なう。即ち演
算器55および符号反転器56によって、ドライブ側圧
下開度修正量δSD、、。fおよびδSW、refがそ
れぞれ式Uυおよび式αaにより演算される。When the reduction opening correction amount δSo is added to either side, the average thickness of the rolled material changes. Therefore, in order to keep the average thickness unchanged, the reduction opening correction amount is divided into separate amounts for both sides, and is added to one and decreased to the other. That is, the calculation unit 55 and the sign inverter 56 calculate the drive side reduction opening correction amount δSD, . f, δSW, and ref are calculated by the equation Uυ and the equation αa, respectively.
δsw、 ref −−−・δSo ・・・・・・・・
・・・・ σa最後に、これら両側の圧下開度修正蓋δ
SD、refおよび88w 、refはそれぞれ両側の
油圧位置制御装置61および62の基準に加えられ、そ
れぞれ両側の圧下開度操作量δsDおよび88wとして
圧延機10の圧下開度の修正を行なう。δsw, ref −−−・δSo・・・・・・・・・
... σa Finally, the reduction opening adjustment lid δ on both sides
SD, ref and 88w, ref are added to the standards of the hydraulic position control devices 61 and 62 on both sides, respectively, and correct the rolling opening of the rolling mill 10 as the rolling opening operation amounts δsD and 88w on both sides, respectively.
このような制御を行なうことにより、従来の無制御状態
では蛇行量が急激に増加して圧延が継続できなくなるよ
うな圧延状態にあっても、本発明に係るmlJ御装置で
は両側圧下開度を自動的に修正することにより両側出厚
偏差を零にすることが可能であるため、蛇行量を零にす
ることができる。By performing such control, the mlJ control device according to the present invention can control the rolling opening on both sides even in a rolling state where the amount of meandering increases rapidly and rolling cannot be continued in the conventional uncontrolled state. By automatically correcting it, it is possible to make the thickness deviation on both sides zero, so the amount of meandering can be made zero.
なお、本発明は上述の実施例に限らす、その主旨の範囲
内で同等の機能を有する計算機によって実現することが
できる。Note that the present invention is not limited to the above-described embodiments, and can be realized by a computer having equivalent functions within the scope of the invention.
以上のとおり本発明によれば、金属の圧延機のドライブ
側とワーク側との出厚から演算した出厚ずれ童が、あら
かじめ設定した目標値になるよう制御を行なうようにし
たため、被圧延材の蛇行を自動的に防止することができ
、生産性、品質を向上させることができる。As described above, according to the present invention, control is performed so that the thickness deviation calculated from the thickness of the drive side and the workpiece side of a metal rolling mill becomes a preset target value, so that the rolled material Meandering can be automatically prevented, improving productivity and quality.
第1図は被圧延材の蛇行説明図で、図(a)は圧延ロー
ラの断面図、図(b) 、 (c) 、 (d)はそれ
ぞれ被圧延材の出厚、先進率、後進率を示すグラフであ
る。
第2図は本発明に係る圧延機の制御装置の一実施例を示
すブロック図である。
1・・・圧延ロール、2・・・被圧延材、10・・・圧
延機、31・・・ドライブ側出庫演算装置、32・・・
開閉器、33・・・ドライブ側出厚記憶装置、34・・
・減算器、41・・・ワーク側出厚演算装置、42・・
・開閉器、43・・・ワーク側出厚記憶装置、44・・
・減算器、45・・・減算器、(資)・・・制御演算装
置、51・・・減算器、52・挾算装置、53・・・P
IDコントローラ、54・・演算器、55・・・符号反
転器、61・・・ドライブ側の油圧位置制御装置、62
・・・ワーク側の油圧位置制御装f。
出願人代理人 猪 股 清
第1図Figure 1 is an explanatory diagram of the meandering of the material to be rolled. Figure (a) is a cross-sectional view of the rolling roller, and Figures (b), (c), and (d) are the thickness, advance rate, and backward rate of the material to be rolled, respectively. This is a graph showing. FIG. 2 is a block diagram showing an embodiment of a rolling mill control device according to the present invention. DESCRIPTION OF SYMBOLS 1... Rolling roll, 2... Rolled material, 10... Rolling machine, 31... Drive side delivery calculating device, 32...
Switch, 33... Drive side exit thickness storage device, 34...
・Subtractor, 41... Workpiece side protrusion thickness calculating device, 42...
・Switch, 43... Workpiece side thickness storage device, 44...
・Subtractor, 45...Subtractor, (capital)...Control calculation device, 51...Subtractor, 52・Spanning device, 53...P
ID controller, 54... Arithmetic unit, 55... Sign inverter, 61... Drive side hydraulic position control device, 62
...Work side hydraulic position control device f. Applicant's agent Kiyoshi Inomata Figure 1
Claims (1)
延機のドライブ9111#重と前記圧延機のドライブ側
圧下開度とを入力しゲージメータ式によりドライブ側出
厚を演算するドライブ側出厚演算装置と、 被圧延材が圧延機にl耐地まれた後の安定した任意の時
点(ロックオンタイミング)、における前記ドライブ側
出厚であるドライブ側出厚ロックオン値を記憶するドラ
イブ側出厚記憶装置と、 前記ドライブ側出厚ロックオン値と前記ドライブ側出厚
との差を演算し、その結果をドライブ9111出厚偏差
として出力する第1の減算器と、前記圧延機のワーク側
荷重と前記圧延機のワーク側圧下開度とを入力しゲージ
メータ式によ(1) −へ りワーク側出厚を演算するワーク側出厚演算装置と、 前記ロックオンタイミングにおける前記ワーク側出厚で
あるワーク側出厚ロックオン値を記憶するワーク側出厚
記憶装置と、 前記ワーク側出厚ロックオン値と前記ワーク側出厚との
差を演算し、その結果をワーク側出厚偏差として出力す
る第2の減算器と、前記ドライブ側出厚偏差と前記ワー
ク側出厚偏差との差を演算し、その結果を出厚ずれ菫と
して出力する第30減其器と、 前記出厚ずれ量を入力し、あらかじめ設定された出厚ず
れ量基準を目標値として前記出厚すれ童を制御するため
のドライブ側圧下開度修正量と、このドライブ側圧下開
度修正量の符号を反転させたワーク側圧下開度修正量と
、を出力する制御演算装置と、 をそなえることを特徴とする圧延機の制御装置t。[Scope of Claims] 1. A control device for a rolling mill that rolls metal, which inputs the drive 9111# weight of the rolling mill and the drive side rolling opening of the rolling mill, and controls the drive side output using a gauge meter type. A drive side thickness calculation device that calculates the thickness; and a drive side thickness lock that is the drive side thickness at a stable arbitrary time (lock-on timing) after the rolled material is rolled in the rolling mill. a drive side thickness storage device that stores an ON value; and a first subtractor that calculates a difference between the drive side thickness lock-on value and the drive side thickness and outputs the result as a drive 9111 thickness deviation. and a workpiece side thickness calculation device that inputs the workpiece side load of the rolling mill and the workpiece side rolling opening of the rolling mill and calculates the edge workpiece side thickness using a gauge meter type (1); and the lock. a workpiece side thickness storage device that stores a workpiece side thickness lock-on value that is the workpiece side thickness at the on-timing; and a workpiece side thickness storage device that calculates the difference between the workpiece side thickness lock-on value and the workpiece side thickness; a second subtractor that outputs the result as a workpiece side thickness deviation; and a 30th subtractor that calculates the difference between the drive side thickness deviation and the workpiece side thickness deviation and outputs the result as a thickness deviation violet. A drive side reduction opening correction amount for inputting the thickness deviation amount and controlling the thickness deviation using a preset thickness deviation standard as a target value, and a drive side reduction opening correction amount. A control device for a rolling mill, comprising: a control calculation device that outputs a work-side rolling opening correction amount with the sign of the degree correction amount reversed;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59003264A JPS60148615A (en) | 1984-01-11 | 1984-01-11 | Control device of rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59003264A JPS60148615A (en) | 1984-01-11 | 1984-01-11 | Control device of rolling mill |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60148615A true JPS60148615A (en) | 1985-08-05 |
JPH0261850B2 JPH0261850B2 (en) | 1990-12-21 |
Family
ID=11552602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59003264A Granted JPS60148615A (en) | 1984-01-11 | 1984-01-11 | Control device of rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60148615A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52124453A (en) * | 1976-04-14 | 1977-10-19 | Hitachi Ltd | Method and device for controlling rolling machine |
-
1984
- 1984-01-11 JP JP59003264A patent/JPS60148615A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52124453A (en) * | 1976-04-14 | 1977-10-19 | Hitachi Ltd | Method and device for controlling rolling machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0261850B2 (en) | 1990-12-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0513723B2 (en) | ||
US4261190A (en) | Flatness control in hot strip mill | |
JP4847111B2 (en) | Multistage rolling mill and control method of multistage rolling mill | |
JPH04167910A (en) | Method and apparatus for controlling rolling mill | |
JPS6012123B2 (en) | Thick plate rolling method | |
JPS60148615A (en) | Control device of rolling mill | |
JP2005088054A (en) | Load distribution control device for continuously rolling mill | |
KR101455103B1 (en) | Method for controlling rolling force of skin pass mill | |
JP4470667B2 (en) | Shape control method in temper rolling mill | |
JP3352383B2 (en) | Hydraulic reduction control method and apparatus for temper rolling mill | |
KR20030054637A (en) | Device and method for flatness control for reversing mill | |
KR100635073B1 (en) | Strip Tension Control Devices and Method of Continuous Processing Line by using Looper | |
JP3449168B2 (en) | Sheet crown prediction method and sheet crown setup method in sheet rolling | |
JP2002282922A (en) | Extension ratio control method for continuous temper rolling mill | |
JP3516726B2 (en) | Edge drop control method during cold rolling | |
JP3221561B2 (en) | Manufacturing method of stainless steel sheet | |
JP2547873B2 (en) | Automatic plate thickness control device for rolling mill | |
JP2680252B2 (en) | Shape control method for multi-high rolling mill | |
JPH0338921B2 (en) | ||
JPH0234241B2 (en) | ||
JPS6028565B2 (en) | Plate crown control method in rolling mill | |
JPH03138013A (en) | Control method for work roll bending in rolling of metal plate | |
JPH08141615A (en) | Thickness controller for rolling mill | |
JPH0811244B2 (en) | Rolling method for controlling web center deviation of H-section steel | |
JPS62207508A (en) | Method for controlling sheet thickness for reverse rolling mill |