JPS62134107A - Measuring method for rolling data - Google Patents
Measuring method for rolling dataInfo
- Publication number
- JPS62134107A JPS62134107A JP60273283A JP27328385A JPS62134107A JP S62134107 A JPS62134107 A JP S62134107A JP 60273283 A JP60273283 A JP 60273283A JP 27328385 A JP27328385 A JP 27328385A JP S62134107 A JPS62134107 A JP S62134107A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- plate
- measured
- value
- plate thickness
- 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
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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、圧延材料の圧延荷重、板温度、板厚。[Detailed description of the invention] [Technical field of invention] The present invention relates to the rolling load, plate temperature, and plate thickness of rolled materials.
板幅などの圧延データを測定する圧延データ測定方法に
関する。The present invention relates to a rolling data measuring method for measuring rolling data such as sheet width.
圧延データとは圧延荷重、圧延トルク、板厚。 Rolling data includes rolling load, rolling torque, and plate thickness.
板幅、板クラウン、板温度などの被圧延材の圧延状態を
あられす値であり、計測センサーを用いて測定される。This is a value that indicates the rolling condition of the rolled material, such as plate width, plate crown, plate temperature, etc., and is measured using a measurement sensor.
これらの圧延データは該当材の圧延実績評価等に用いら
れるのでその値は正しい値でなければならず、計測セン
サー機器の異常、計測センサーの位置のズレ等の原因で
測定値が正しくない場合は、その値が異常値であるとい
うことが正しく認識されなければならない。These rolling data are used to evaluate the rolling performance of the material in question, so the values must be correct.If the measured values are incorrect due to an abnormality in the measuring sensor equipment, a shift in the position of the measuring sensor, etc. , it must be correctly recognized that the value is an abnormal value.
従来、圧延データの正常、異常を判断する方法としては
予じめ各計測センサー毎に上下限値を設けておき、セン
サー人力値がこの上下限値以内なら正常、上下限値を越
えた場合は異常であるという判断を行っていた。しかし
、この方法では、上下限値を予じめ決めておくため、圧
延状態に応じた細かなチェックはできず粗いチェックに
なってしまうという欠点がある。Conventionally, the method of determining whether rolling data is normal or abnormal is to set upper and lower limits for each measurement sensor in advance, and if the sensor manual force value is within these upper and lower limits, it is normal, and if it exceeds the upper or lower limits, it is normal. It was determined that it was abnormal. However, this method has the disadvantage that, since the upper and lower limits are determined in advance, detailed checks depending on the rolling state cannot be performed and only rough checks are made.
本発明は上述した従来の問題点を解消すべくなされたも
のであり、その目的は1、該当圧延材の圧延状態値の測
定精度を向上させた圧延データ測定方法を提供すること
にある。The present invention has been made to solve the above-mentioned conventional problems, and its objectives are 1. to provide a rolling data measuring method that improves the accuracy of measuring rolling state values of the relevant rolled material.
上述した目的を達成すべく本発明による圧延データ測定
方法は、圧延材の測定すべきデータの値を圧延数式モデ
ルを用いて予、11すしておき、この予測値と実際に計
測センサーで測定した測定値とを比較することにより測
定データの正常、異常の判断を行うことをその特徴とし
ている。In order to achieve the above-mentioned object, the rolling data measuring method according to the present invention uses a rolling formula model to preliminarily determine the value of the data to be measured for the rolled material, and then compares this predicted value with the value actually measured by the measuring sensor. Its feature is that it can determine whether the measured data is normal or abnormal by comparing it with the measured value.
本発明の一実施例を第1図を用いて説明する。 An embodiment of the present invention will be described with reference to FIG.
被圧延lは圧延ロール2,2′ によって圧延される。The material to be rolled 1 is rolled by rolling rolls 2, 2'.
入側板厚は板厚計4で、出側板厚は板厚計5で、板幅は
板幅計6で、板温度は板温度計7で、圧延速度は速度計
8で測定され演算器9へ送られる。The inlet side plate thickness is measured with a plate thickness meter 4, the outlet side plate thickness is measured with a plate thickness meter 5, the plate width is measured with a plate width meter 6, the plate temperature is measured with a plate thermometer 7, and the rolling speed is measured with a speed meter 8. sent to.
圧延荷重モデル演算式には色々な形の式が存在するが、
−例として次式の圧延荷重モデル演算式を用いる。There are various types of rolling load model calculation formulas, but
- As an example, use the following rolling load model calculation formula.
P=b−に、、、、・4R・(H−h)・Qp ・
・(1)−h
H・・・■
kfm:a1. 、G2.;G3・ea41
、、、 G4)ε=ρ。−・・■
■(
ここで P:圧延荷重
b:板幅
k fm ’平均変形抵抗
■り:ワークロール半径
H:入板厚
h:出板厚
QP:圧下力関数
r:圧下率
T:板温度
V:圧延速度
ε:対数歪
;:歪速度
A1〜A7.a1〜a4=式の定数
式(υ〜0よりPはH,h、b、v、Tの関数になって
いることがわかる。P=b-,,,,4R・(H-h)・Qp・
・(1)-h H...■ kfm:a1. , G2. ;G3・ea41
,,, G4) ε=ρ. -・・■ ■( Here P: Rolling load b: Plate width k fm 'Average deformation resistance ■ Roll: Work roll radius H: Input thickness h: Output thickness QP: Rolling force function r: Reduction ratio T: Plate Temperature V: Rolling speed ε: Logarithmic strain;: Strain rate A1-A7. From the constant expression of a1-a4 = equation (υ~0, it can be seen that P is a function of H, h, b, v, and T. .
演算器9では式(1)〜■より圧延荷重予測値P0を計
算し、演算器10へ送る。実際の圧延荷重pAはロード
セル3で測定され演算器10へ送られる。The calculator 9 calculates the predicted rolling load P0 from equations (1) to (2) and sends it to the calculator 10. The actual rolling load pA is measured by the load cell 3 and sent to the calculator 10.
演算器10では圧延荷重予測値P0と測定値pAとを比
較することにより圧延荷重測定値P の正常。The calculator 10 determines whether the measured rolling load value P is normal by comparing the predicted rolling load value P0 and the measured value pA.
異常を判断する。この正常、異常の判断方法は色々考え
られるがここでは次式■を満足する場合に正常、満足し
ない場合には異常と判断することにする。Determine abnormality. Various methods can be considered for determining whether the condition is normal or abnormal, but in this case, it is determined that the condition is normal if the following formula (2) is satisfied, and abnormal if it is not satisfied.
但し β:定数値
上記処理により、圧延荷重測定値の正常、異常の判断を
該当圧延材の圧延状態を考慮して行うことができ、圧延
データの測定精度の向上が図れる。However, β: Constant value Through the above processing, it is possible to determine whether the measured rolling load value is normal or abnormal, taking into consideration the rolling state of the relevant rolled material, and it is possible to improve the measurement accuracy of rolling data.
以1は、圧延荷重を例に説明したが、次に板温度計によ
り測定する板温度測定を例に説明する。In the above, the rolling load was explained as an example, but next, the measurement of plate temperature measured by a plate thermometer will be explained as an example.
空冷による板温度の降下をあられす式として次式のモデ
ル式を用いる。The following model equation is used to calculate the drop in plate temperature due to air cooling.
ここで T:初期の板温度がTIである圧延材の時間を
後の板温度
TA:周囲温度
Tが初期の板温度
t:経過時間
h:圧延材の板厚
α:空冷熱伝達率
C:圧延材の比熱
ρ:圧延材の比重
弐〇よりTはパラメータTA、TI、t、h、 α。Here, T: Temperature of the plate after the time when the initial plate temperature is TI TA: Temperature of the plate when the ambient temperature T is the initial plate temperature t: Elapsed time h: Thickness of the rolled plate α: Air cooling heat transfer coefficient C: Specific heat ρ of rolled material: From the specific gravity of rolled material 2〇, T is the parameter TA, TI, t, h, α.
C,ρであられされることがわかるが、これらのパラメ
ータのうちTA、αlc+ ρ は定数値と考えてさし
つかえなく、圧延状態により変化するものはTI、t、
hである。Of these parameters, TA, αlc+ρ can be considered as constant values, and those that change depending on the rolling state are TI, t,
It is h.
次に本発明の他の実施例を第2図を用いて説明する。Next, another embodiment of the present invention will be described using FIG. 2.
被圧延材1の板厚は板厚計11で板温度は板温度計12
で測定され記憶装置13に送られる。またこのタイミン
グでタイマー14がスタートし計時を開始する。圧延が
進行I1、板温度が板温度計15で、1l111定され
るとこの測定値−r Aは演算器17へ送られる。The plate thickness of the material to be rolled 1 is measured by a plate thickness gauge 11, and the plate temperature is measured by a plate thermometer 12.
is measured and sent to the storage device 13. Also, at this timing, the timer 14 starts and starts measuring time. When the rolling progresses I1 and the plate temperature is determined 1111 by the plate thermometer 15, this measured value -rA is sent to the calculator 17.
またタイマー14はストップし計時カラン1へ値が演算
器16へ送られろ。記憶装置13から板厚と板温度計1
2での測定温度が演算器1Gへ送られる。演算器16で
は式(8)より板温度計15での板温度予測値T0を計
算し演算器17へ送る。演算器17では板温度測定値T
Aと予測値T0とを比較することにより板温度測定値T
Aの正常、異常を判断する。Also, the timer 14 is stopped and the value of the timer 1 is sent to the arithmetic unit 16. Plate thickness and plate thermometer 1 from storage device 13
The temperature measured at step 2 is sent to the computing unit 1G. The arithmetic unit 16 calculates the plate temperature prediction value T0 at the plate thermometer 15 from equation (8) and sends it to the arithmetic unit 17. The calculation unit 17 calculates the plate temperature measurement value T.
By comparing A and the predicted value T0, the measured plate temperature T
Determine whether A is normal or abnormal.
今まで、対象とする圧延データの測定値の予測値を他の
圧延データ実測値を入力として圧延数式モデルを用いて
計算して求めた例を説明したが、上記圧延データの測定
値の予測値としてパススケジュール計算値を用いても同
様の効果が得られる。Up to now, we have explained an example in which the predicted value of the measured value of the target rolling data is calculated using a rolling formula model using the actual measured values of other rolling data as input, but the predicted value of the measured value of the rolling data mentioned above has been explained. A similar effect can be obtained by using the path schedule calculation value as .
本例では圧延荷重、および板温度を例に説明したが、圧
延トルク、板厚、板幅、板クラウン等の他の圧延データ
の測定にも容易に適用できることは勿論である。In this example, rolling load and plate temperature were explained as examples, but it goes without saying that the present invention can be easily applied to measurement of other rolling data such as rolling torque, plate thickness, plate width, and plate crown.
本発明によれば、圧延データの測定値の正常。 According to the invention, the measurement values of rolling data are normal.
異常の判断を、この測定値と圧延数式モデルを用いて計
算した予測値とを比較することにより行なうので、確度
の高い判断ができその結果、圧延データの測定精度が向
上し、その結果板厚設定値精度の向上が期待できる。Abnormality is determined by comparing this measured value with the predicted value calculated using the rolling formula model, which allows for highly accurate determination.As a result, the measurement accuracy of rolling data improves, and as a result, the plate thickness An improvement in setting value accuracy can be expected.
第1図、第2図は本発明の一実施例を説明するための圧
延システムのブロック構成図である。
1・・・被圧延材、 2,2′・・・圧延ロール3
・・・ロードセル、 ’4,5.11・・・板厚計6
・・・板幅計、 7.12.15・・・板温度計
8・・・速度計、 9 、10.16.17・・
・演算器13・・・記憶装rm14・・・タイマー代理
人 弁理士 則 近 憲 倍
量 三俣弘文FIGS. 1 and 2 are block diagrams of a rolling system for explaining an embodiment of the present invention. 1... Rolled material, 2, 2'... Roll roll 3
...Load cell, '4,5.11...Plate thickness total 6
...Plate width gauge, 7.12.15...Plate thermometer 8...Speed meter, 9, 10.16.17...
・Arithmetic unit 13...Memory device rm14...Timer agent Patent attorney Noriyoshi Chika Hirofumi Mitsumata
Claims (1)
測値をモデル演算式を用いて求めた予測値と比較し、そ
の比較結果が所定の関係を満たすとき実測値は正常であ
ると判断する圧延データ測定方法。A method of measuring rolling pressure data for rolled materials, in which the actual value measured by a sensor is compared with the predicted value obtained using a model calculation formula, and if the comparison result satisfies a predetermined relationship, the actual value is determined to be normal. Data measurement method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60273283A JPS62134107A (en) | 1985-12-06 | 1985-12-06 | Measuring method for rolling data |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60273283A JPS62134107A (en) | 1985-12-06 | 1985-12-06 | Measuring method for rolling data |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62134107A true JPS62134107A (en) | 1987-06-17 |
JPH0457405B2 JPH0457405B2 (en) | 1992-09-11 |
Family
ID=17525686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60273283A Granted JPS62134107A (en) | 1985-12-06 | 1985-12-06 | Measuring method for rolling data |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62134107A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017177203A (en) * | 2016-03-31 | 2017-10-05 | Jfeスチール株式会社 | Method for detection of abnormality in rolling load measuring apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55150373U (en) * | 1979-04-17 | 1980-10-29 | ||
JPS5886918A (en) * | 1981-11-20 | 1983-05-24 | Nippon Kokan Kk <Nkk> | Material tension estimating method of continuous rolling mill |
JPS5916624A (en) * | 1982-07-16 | 1984-01-27 | Nippon Kokan Kk <Nkk> | Method for estimating material tension of continuous rolling mill |
JPS609512A (en) * | 1983-06-29 | 1985-01-18 | Sumitomo Metal Ind Ltd | Method for controlling sheet thickness |
-
1985
- 1985-12-06 JP JP60273283A patent/JPS62134107A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55150373U (en) * | 1979-04-17 | 1980-10-29 | ||
JPS5886918A (en) * | 1981-11-20 | 1983-05-24 | Nippon Kokan Kk <Nkk> | Material tension estimating method of continuous rolling mill |
JPS5916624A (en) * | 1982-07-16 | 1984-01-27 | Nippon Kokan Kk <Nkk> | Method for estimating material tension of continuous rolling mill |
JPS609512A (en) * | 1983-06-29 | 1985-01-18 | Sumitomo Metal Ind Ltd | Method for controlling sheet thickness |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017177203A (en) * | 2016-03-31 | 2017-10-05 | Jfeスチール株式会社 | Method for detection of abnormality in rolling load measuring apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPH0457405B2 (en) | 1992-09-11 |
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