JPS58187210A - Method for controlling sheet thickness of material to be rolled - Google Patents
Method for controlling sheet thickness of material to be rolledInfo
- Publication number
- JPS58187210A JPS58187210A JP57069769A JP6976982A JPS58187210A JP S58187210 A JPS58187210 A JP S58187210A JP 57069769 A JP57069769 A JP 57069769A JP 6976982 A JP6976982 A JP 6976982A JP S58187210 A JPS58187210 A JP S58187210A
- Authority
- JP
- Japan
- Prior art keywords
- thickness
- central part
- measuring
- edge
- final stand
- 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
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
- B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、銅帯等の圧延材料の厚み制御方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the thickness of rolled materials such as copper strips.
鋼帯等の圧延材料（以下、単に材料という。）の製品の
販売上の規格では実貫重量売り規格と計算重量売り規格
とが一般的であるが、計算重量売り規格における材料の
規格は、第１図に示すように、材料１の側端２から微小
距離ａの位置での厚みｔを公差０〜＋αで定めている。Sales standards for rolled materials such as steel strips (hereinafter simply referred to as materials) generally include actual weight selling standards and calculated weight selling standards, but the material standards in the calculated weight selling standards are: As shown in FIG. 1, the thickness t at a position a minute distance a from the side edge 2 of the material 1 is determined with a tolerance of 0 to +α.
これは同図に示すように材料にはエツジドロップおよび
板クラウンが生じることに鑑みて、現実的な範囲で厚み
の下限を規制したものであり、一般にａ ＝ ３ ／
８［インチ］とされる。以下、この材料１の側端２から
距離ａにおける材料１の厚みｔをエツジ部厚みという。This is because the lower limit of the thickness is regulated within a realistic range, considering that edge drops and plate crowns occur in the material as shown in the same figure, and generally a = 3 /
It is assumed to be 8 [inches]. Hereinafter, the thickness t of the material 1 at a distance a from the side edge 2 of the material 1 will be referred to as the edge thickness.
しかし、従来はこのような側端２から微小距離＆の位置
についてのみ厚み測定を連続的に行うことは！材料１０
幅方向の寸法偏差、偏位等罠起因して極めて困離であり
、また、材料１の全幅について厚み分布を測定すれば距
離ａの位置についても厚み測薙を行い得るが、この場合
には厚み測定装置が著しく複雑かつ高価なものになる。However, conventionally, it has not been possible to continuously measure the thickness only at a minute distance & from the side edge 2! Material 10
This is extremely difficult due to dimensional deviations, deviations, etc. in the width direction.Also, if the thickness distribution is measured over the entire width of material 1, it is possible to measure the thickness at the position of distance a, but in this case, The thickness measuring device becomes significantly more complex and expensive.
このため、従来は第２図に示すように材料１０幅方向中
心部で厚みＴを測定し、中心部厚みＴから予想されるエ
ツジ部厚みｔが規格公差内［（ｔ。For this reason, conventionally, as shown in FIG. 2, the thickness T is measured at the center of the material 10 in the width direction, and the edge thickness t estimated from the center thickness T is within the standard tolerance [(t.
十Ｑ）〜（ｔｏ＋α）〕に納まるように圧延条件を制御
し、ていた。しかし、コイル内および各コイル間で仮ク
ラウンにはばらつきが有り、拐料１の公称中６部厚みＴ
ｏ ［ｍｍ ）に対するクラウン量（Ｔ−ｔ）〔μｍ〕
の分布は第６図のようにばらり（ことになる。したがっ
て、Ｔにもとづいて予想されるｔは板厚公差保証のため
（Ｔ−ｔ）の分布における最大ばらつき（第６図におけ
る上限の線）によって算出されることになり、一般に実
際のエツジ部厚みｔ′は予想エツジ部厚みｔよりも小さ
くなる。The rolling conditions were controlled so that the rolling conditions were within the range 1Q) to (to+α)]. However, there are variations in the temporary crown within the coil and between each coil, and the nominal thickness T
Crown amount (T-t) [μm] for o [mm]
The distribution of (T-t) varies as shown in Figure 6. Therefore, t predicted based on T is the maximum variation in the distribution of (T-t) (the upper limit in Figure 6) to guarantee plate thickness tolerance. The actual edge thickness t' is generally smaller than the expected edge thickness t.
すなわち、従来の月相１は厚み規格値よりも厚く形成さ
れ、例えば第２図に示す交差ハツチング部に過剰の肉厚
を付加して出荷するため１歩留を十分向上させることが
できなかった。In other words, the conventional lunar phase 1 is formed thicker than the standard thickness value, and for example, the cross hatching part shown in Fig. 2 is shipped with excessive thickness added, making it impossible to sufficiently improve the 1 yield. .
このような従来の問題点を解決するために、本発明者等
は材料エツジ部の厚み測定方法および装置を提案した（
特開昭５６−１２８６０３号公報参照ン。この厚み測定
方法は、例えば放射線式の厚み測定装置を用いて前記鋼
板エツジ部において距離ａの位置で直接部みを測定する
もので、微小な距離ａの位置で放射線ビームの十分な放
射面積を確保するために、放射線ビームの断面を材料長
手方向にやや長い扁平形状にスリットしている。In order to solve these conventional problems, the present inventors proposed a method and device for measuring the thickness of material edges (
See Japanese Unexamined Patent Publication No. 128603/1983. This thickness measuring method uses, for example, a radiation-type thickness measuring device to directly measure the edge portion of the steel plate at a distance a. In order to ensure this, the cross section of the radiation beam is slit into a flat shape that is slightly longer in the longitudinal direction of the material.
また、この厚みｉａ＋定装置は、放射線源と放射線検出
器とを相対量させつつ可動フレームに装着し。Further, this thickness ia + constant device is mounted on a movable frame while adjusting the relative amounts of the radiation source and the radiation detector.
側端検１［にで材料のｌ１１１端を検出しつつ可動フレ
ームを走行させ、これによって放射線源の放射線ビーム
を側端かも所定距離の位置に常に照射するようにしてい
る。The movable frame is moved while detecting the 1111 end of the material using side edge detection 1, so that the radiation beam from the radiation source is always irradiated to a position at a predetermined distance from the side edge.
しかし、このような厚み測定装置を用いて、材料のエツ
ジ部のみを測定して厚み制御を行った場合には１通常、
材料の長手方向にそって板クラウン値は変化しているの
で（例えば、熱間圧延材料は熱間圧延時のロールのヒー
ト・アップ、ロール摩耗等の影響を受けて利料の長手方
向にそって板クラウンは変化する。）、祠料中心部の厚
みは材料の長手方向にそって変化することになる。その
Ｊ：ラナ場合、ユーザにおいては、材料中心部の厚みを
主体に、打抜、切削、プレス等の二次加工をするので、
プレス金型な破損したり、プレス加工品にシワ等の不良
を生じる危険性があるＯしたがって、本発明の目的は、
製品歩留を向上させるとともに製品の二次加工のさいの
トラブルを未然に防ぐことができる拐刺の厚み制御方法
を提供することにある。However, when controlling the thickness by measuring only the edges of the material using such a thickness measuring device, 1.
Since the plate crown value changes along the longitudinal direction of the material (for example, in hot rolled materials, the rate of interest changes along the longitudinal direction due to the effects of roll heat-up, roll wear, etc. during hot rolling). ), the thickness of the center of the abrasive material will vary along the length of the material. Part J: In the case of Lana, the user performs secondary processing such as punching, cutting, and pressing mainly on the thickness of the center of the material, so
Therefore, the purpose of the present invention is to
It is an object of the present invention to provide a method for controlling the thickness of splinters, which can improve product yield and prevent troubles during secondary processing of products.
本発明の方法は、第４図に示すように、熱間または冷間
連続圧延機乙の最終スタンド４の出側に厚み測定装置５
を設けて材料１の中心部およびエツジ部の厚みを測寓し
、測定値を適正目標板厚計算機乙に送り、ここで後述す
る拐刺中心部における適正目標厚み計算をし、この計算
結果をＡＧＣ制御装置７に送・つて最終スタンド４のＡ
ＧＣ制御を行う。In the method of the present invention, as shown in FIG.
is installed to measure the thickness of the center and edge portions of material 1, and send the measured values to the appropriate target plate thickness calculator B, which calculates the appropriate target thickness at the center of the cutout, which will be described later, and uses this calculation result. A of the final stand 4 sent to the AGC control device 7
Performs GC control.
厚み測定装置５は、第５図に示すように、月料１の中心
部厚みＴを測定する中心部厚み測定ユニット５１と、材
料１のエツジ部を測定するエツジ部測定ユニット５２と
からできている。厚み測定装置５の構成については後に
詳述する。The thickness measuring device 5, as shown in FIG. There is. The configuration of the thickness measuring device 5 will be described in detail later.
一般に、材料１は幅方向について良好な対称性をもって
圧延されるので、両エツジ部に厚み測定ユニット５２を
配設する方が好ましいが、一方の側のエツジ部にのみエ
ツジ部測定ユニット５２を設けても、実用上は十分な厚
み制御を行うことができる。Generally, since the material 1 is rolled with good symmetry in the width direction, it is preferable to provide the thickness measuring unit 52 at both edge portions, but it is preferable to provide the edge portion measuring unit 52 only at the edge portion on one side. However, sufficient thickness control can be achieved for practical purposes.
本発明の方法の工程を第６図を参照して説明する。まず
、紀１工程６１として、制御を開始する。The steps of the method of the invention will be explained with reference to FIG. First, control is started as the first step 61.
第２工程６２として、制御対象となるべき圧延材１が計
算重量売り製品か否かを確認する。第６エ程６６として
、拐刺の厚み、幅等のデータを取り込む。第４王程６４
として、厚み測定装置５の位置を設定する。第５王程６
５として、材料先端巻取完了後、月料中心部およびエツ
ジ部の厚み測定を行い、板クラウンを求める。第６エ程
として、材料中心部における適正目標厚み計算を行う。As a second step 62, it is confirmed whether the rolled material 1 to be controlled is a product sold by calculated weight. In the sixth step 66, data such as the thickness and width of the splinter are taken in. 4th King Rule 64
The position of the thickness measuring device 5 is set as follows. 5th king level 6
Step 5: After winding up the leading edge of the material, the thickness of the central part and edge part of the material is measured to determine the plate crown. As the sixth step, an appropriate target thickness calculation at the center of the material is performed.
第７エ程６７として、求められる適正目標厚みにもとづ
いて連続圧延機乙の最終スタンド＃４のＡＧＣ制御を行
う。As a seventh step 67, AGC control of the final stand #4 of the continuous rolling mill B is performed based on the required appropriate target thickness.
適正目標厚みを求めるための計算は、次のようにして行
う。Calculations for determining the appropriate target thickness are performed as follows.
まず、材料１の先端部に対して材料の中心部厚みＴと拐
刺エツジ部厚みｔとを所定の時間間隔Ｓ（ｉｆりえば０
．２０秒）で複数回ｎ（例えば、２５回）実測し、平均
仮りラウｚＧＲを求める。これは。First, the thickness T of the center part and the thickness t of the cutting edge part of the material 1 are measured at a predetermined time interval S (if 0
．． 20 seconds) a plurality of times (for example, 25 times), and calculate the average temporary rhau zGR. this is.
次式（１１で表される。It is expressed by the following formula (11).
従来法では、板エツジ部での目標厚み（ｔｏ）に、板ク
ラウンバラツキの上限値（ＣｍａＸ）を上乗せし。In the conventional method, the upper limit of plate crown variation (CmaX) is added to the target thickness (to) at the plate edge.
板センタ部厚み（Ｔｏ＝ｔｏ＋Ｃｍａｘ）を求め、この
値にもとづいてＡＧＣ制御を行っていた。このような場
合圧延材料の板クラウン（Ｃ）が一般的にＣ＜Ｃｍａｘ
であるのでｂｃｍａＸ−Ｃなる賛で、不必要に厚目に圧
延していることになり、０囮ニー〇）／ＴｏＸ １００
’％）なるａの歩留損失となる。The plate center thickness (To=to+Cmax) was determined and AGC control was performed based on this value. In such a case, the plate crown (C) of the rolled material is generally C<Cmax
Therefore, with bcma
'%) yield loss is a.
以上より、本発明法で求められた圧延材料の板クラウン
（ＯＲ）を用いて、不必要に厚目に圧延しない適正な目
標板厚、すなわちＴｏ′＝Ｔｏ十ＣＲ（またはＴＯ’
”ｔｏ＋Ｃｍａｘ−ＣＲ）なる値で、板センタ部ＡＧＣ
目標厚みをＴｏからＴｏ′に設定替をするものである。From the above, using the plate crown (OR) of the rolled material obtained by the method of the present invention, it is possible to obtain an appropriate target plate thickness that does not make it unnecessarily thick, that is, To' = To + CR (or TO'
With the value "to + Cmax - CR), the board center AGC
This is to change the setting of the target thickness from To to To'.
次に、厚み測定装置５の構成について説明する。Next, the configuration of the thickness measuring device 5 will be explained.
本発明の方法においては、厚み測定装置として基本的に
は前述した拐料エツジ部厚み測定装置（特開昭５６−１
２８６０６号公報）を利用する。本発明の方法において
は、この装置をまず、エツジ地厚み測定ユニット５２と
して使用する。In the method of the present invention, the thickness measuring device is basically the above-mentioned particle edge thickness measuring device (Japanese Unexamined Patent Publication No. 56-1
28606). In the method of the present invention, this device is first used as the edge ground thickness measuring unit 52.
エツジ部厚み測定ユニット５２は、第７図に示すように
、レール５２６にそって往復走行可能な可動フレーム５
２６に放射線厚み削５２７および側端検出器５２８を装
着している。As shown in FIG.
26 is equipped with a radiation thickness cutter 527 and a side edge detector 528.
１０１１端検出器５２８はレーザ光源５２９とイメージ
・センサ５２０とを材料１をかいして対向させ、レーザ
・ビームＢｆ）’−拐科料１よってさえぎられた部分の
一端部を側端２としてイメージ・センサ５２０において
検出する。側端検出部５２８は制御器５２１に接続され
、割病１器５２１は側端検出部５２８の検出信号にもと
づいて流体圧シリンダ５２２によって可動フレーム５２
６を走行させて放射線厚み泪５２７が常に側端２から距
離ａの位置を臨むようにする。したがって、エツジ部厚
み測定ユニット５２はＩｌｌ！ｌ端２から距離ａの位置
の厚み（エツジ部厚み）ｔを常に測定し得るようになり
、距離ａの位置につ（、・ての寸法管理が確実に行われ
る。The 1011 edge detector 528 makes the laser light source 529 and the image sensor 520 face each other across the material 1, and generates an image with one end of the portion blocked by the laser beam Bf)'-the ablated material 1 as the side edge 2. Detected by sensor 520. The side edge detection section 528 is connected to the controller 521, and the split device 521 moves the movable frame 52 by the fluid pressure cylinder 522 based on the detection signal of the side edge detection section 528.
6 is run so that the radiation thickness layer 527 always faces a position a distance a from the side edge 2. Therefore, the edge thickness measuring unit 52 is Ill! It is now possible to always measure the thickness (edge portion thickness) t at a distance a from the l end 2, and dimensional control at the distance a is ensured.
さらに、可動フレーム５２６にはポテンショメータ５３
０が設けられ、可動フレーム５２６の位置は常に制御器
５２１に狗帰還されて、流体圧シリンダ５２２による可
動フレーム５２６の位置設定力精密に行われるようにな
っている〇放射線厚み計５２７は、材料１０表面を臨む
放射線源５２４と、放射線源５２４に対向する位置で材
料１０表面を臨む放射線検出器５２５とからなり、放射
線源５２４から放射された放射線ビームＸが材料１を透
過する量を放射線検出器５２５において検出する。Furthermore, the movable frame 526 includes a potentiometer 53.
0 is provided, and the position of the movable frame 526 is always fed back to the controller 521, so that the position setting force of the movable frame 526 by the fluid pressure cylinder 522 is precisely performed. It consists of a radiation source 524 facing the surface of the material 10 and a radiation detector 525 facing the surface of the material 10 at a position opposite to the radiation source 524. It is detected in the device 525.
中心部厚み測定ユニット５１は、第８図に示すように、
エツジ部厚み測定ユニット５２の可動フレーム５２６上
に移動自在に装着される◎ユニット５１は材料１０幅方
向に流体圧シリンダ５１１によって位置調整がなされる
。ユニット５１にはユニット５２と同様に放射線厚み計
５１７が設けられる。The center thickness measuring unit 51, as shown in FIG.
The unit 51 is movably mounted on the movable frame 526 of the edge thickness measuring unit 52, and its position is adjusted in the width direction of the material 10 by a fluid pressure cylinder 511. Like the unit 52, the unit 51 is provided with a radiation thickness gauge 517.
厚み１．０朋×幅１２１９ｍｍＸ重量２８ ｔｏｎの冷
間圧延銅帯に対し、従来法では上乗せ菫として６０μの
余分な厚みを付加していたが、本発明法に、上れば、圧
延拐料の仮クラウンが２０μであり。In the conventional method, an extra thickness of 60 μm was added to a cold-rolled copper strip with a thickness of 1.0 mm, a width of 1219 mm, and a weight of 28 tons. The temporary crown is 20μ.
１０μ分板センタ目標厚みを下げて圧延することが可能
となり、最終スタンドの厚みの設定値を０．９９０ｍｍ
に変更し、１．０％の製品歩留の向上を得た。It is now possible to roll by lowering the target thickness of the plate center by 10μ, and the final stand thickness setting value is 0.990mm.
The product yield was improved by 1.0%.
第１図は計算重量売り規格の圧延製品の横断面図。第２
図は従来の圧延方法によって製造された製品の横断面図
。第ろ図は公称厚みに対するクラウン量のバラツキを示
すグラフ。第４図は本発明の方法を示す概略説明図。第
５図は本発明の方法に使用する厚み測定装置の配置を示
す平面図。第６図は本発明の方法の工程を示すフロー・
チャー１・。第７図はエツジ部厚み測定ユニットの斜視
図。
第８図は中心部厚み測定ユニットの平面図。
１：圧延材料 ２：側端 ３二連続圧延機 ４：最終ス
タンド ５：厚み測定装置 ５１：中心部厚み測定ユニ
ット ５２：エッジ部厚み測定ユニット ５１７：放射
線厚み計 ５２７：放射線厚み計 ５２８：側端検出器
。
特許出願人 住友金属工業株式会社
（外２名）Figure 1 is a cross-sectional view of a rolled product of calculated weight sales standard. Second
The figure is a cross-sectional view of a product manufactured by a conventional rolling method. Fig. 4 is a graph showing the variation in crown amount with respect to the nominal thickness. FIG. 4 is a schematic explanatory diagram showing the method of the present invention. FIG. 5 is a plan view showing the arrangement of the thickness measuring device used in the method of the present invention. FIG. 6 is a flowchart showing the steps of the method of the present invention.
Char 1. FIG. 7 is a perspective view of the edge thickness measuring unit. FIG. 8 is a plan view of the center thickness measuring unit. 1: Rolled material 2: Side edge 3 Double continuous rolling mill 4: Final stand 5: Thickness measurement device 51: Center thickness measurement unit 52: Edge thickness measurement unit 517: Radiation thickness meter 527: Radiation thickness meter 528: Side edge Detector. Patent applicant: Sumitomo Metal Industries, Ltd. (2 others)
Claims (1)
エツジ部および中心部の厚みを同時測定すること、該測
定値から材料の板クラウンを求めること、該板クラウン
から適正な板センタ部の板厚制御用目標厚みを計算する
こと、該計算厚みにもとづいて前記最終スタンドの板厚
制御の目標設定値を変更することからなる圧延材料の厚
み制御方法。At the exit side of the final stand of a continuous rolling mill, simultaneously measuring the thickness of the edge and center of the rolled material, determining the plate crown of the material from the measured values, and determining the appropriate plate center part from the plate crown. A method for controlling the thickness of a rolled material, comprising: calculating a target thickness for thickness control; and changing a target set value for thickness control of the final stand based on the calculated thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57069769A JPS58187210A (en) | 1982-04-26 | 1982-04-26 | Method for controlling sheet thickness of material to be rolled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57069769A JPS58187210A (en) | 1982-04-26 | 1982-04-26 | Method for controlling sheet thickness of material to be rolled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58187210A true JPS58187210A (en) | 1983-11-01 |
Family
ID=13412329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57069769A Pending JPS58187210A (en) | 1982-04-26 | 1982-04-26 | Method for controlling sheet thickness of material to be rolled |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58187210A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2014813A1 (en) * | 2007-07-09 | 2009-01-14 | Oskar Dilo Maschinenfabrik KG | Method of manufacturing a consolidated nonwoven fabric |
-
1982
- 1982-04-26 JP JP57069769A patent/JPS58187210A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2014813A1 (en) * | 2007-07-09 | 2009-01-14 | Oskar Dilo Maschinenfabrik KG | Method of manufacturing a consolidated nonwoven fabric |
| US7581294B2 (en) | 2007-07-09 | 2009-09-01 | Oskar Dilo Maschinenfabrik Kg | Method of manufacturing a nonwoven |
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