TWI769727B - Shape control method and shape control device of calender - Google Patents

Shape control method and shape control device of calender Download PDF

Info

Publication number
TWI769727B
TWI769727B TW110108046A TW110108046A TWI769727B TW I769727 B TWI769727 B TW I769727B TW 110108046 A TW110108046 A TW 110108046A TW 110108046 A TW110108046 A TW 110108046A TW I769727 B TWI769727 B TW I769727B
Authority
TW
Taiwan
Prior art keywords
shape
steel sheet
control
calender
width
Prior art date
Application number
TW110108046A
Other languages
Chinese (zh)
Other versions
TW202140161A (en
Inventor
鈴木健治
原田悦充
Original Assignee
日商杰富意鋼鐵股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日商杰富意鋼鐵股份有限公司 filed Critical 日商杰富意鋼鐵股份有限公司
Publication of TW202140161A publication Critical patent/TW202140161A/en
Application granted granted Critical
Publication of TWI769727B publication Critical patent/TWI769727B/en

Links

Images

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/02—Profile, e.g. of plate, hot strip, sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/18—Roll crown; roll profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/02—Roll bending; vertical bending of rolls
    • B21B2269/06—Intermediate roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B21B2269/16—Intermediate rolls
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • 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
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Ceramic Capacitors (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

本發明的壓延機的形狀控制方法包括：測定步驟，測定壓延機的出側處的鋼板的形狀；以及控制步驟，基於測定步驟中所測定的鋼板的形狀來對壓延機進行控制，以使鋼板的形狀處於允許範圍內，控制步驟包括以下步驟：於作為壓延對象的鋼板的寬度超過規定值的情況下，將控制增益設定得較作為壓延對象的鋼板的寬度為規定值以下時的控制增益小。The shape control method of the calender of the present invention includes: a measuring step of measuring the shape of the steel sheet at the exit side of the calender; and a control step of controlling the calender based on the shape of the steel sheet measured in the measuring step so that the steel sheet is The shape of the steel sheet is within the allowable range, and the control step includes the step of setting the control gain to be smaller than the control gain when the width of the steel sheet to be rolled exceeds a predetermined value when the width of the steel sheet to be rolled exceeds a predetermined value .

Description

壓延機的形狀控制方法及形狀控制裝置Shape control method and shape control device of calender

本發明是有關於一種壓延機的形狀控制方法及形狀控制裝置。The present invention relates to a shape control method and a shape control device of a calender.

於連續式冷軋機等壓延機中，採用了以下方法：測定壓延結束後的鋼板的形狀，並將測定結果回饋至壓延機而將鋼板的形狀控制於允許範圍內。另外，除此之外，亦採用了以下方法：於各壓延機座設置板厚計、或板厚計及板速度計，於各壓延機座實施輥間隙控制或輥速度控制（參照專利文獻1）。 [現有技術文獻] [專利文獻]In a rolling machine such as a continuous cold rolling mill, a method is adopted in which the shape of the steel sheet after rolling is measured, and the measurement result is fed back to the rolling machine to control the shape of the steel sheet within an allowable range. In addition to this, a method has also been adopted in which a thickness gauge, a thickness gauge, and a speed gauge are installed in each calender stand, and roll gap control or roll speed control is performed on each calender stand (refer to Patent Document 1). ). [Prior Art Literature] [Patent Literature]

專利文獻1：日本專利特開2012-110939號公報Patent Document 1: Japanese Patent Laid-Open No. 2012-110939

[發明所欲解決之課題] 然而，所述方法是用於將鋼板的板厚限制於允許範圍內的控制，因此具有抑制板厚不良的發生的效果，但無法抑制鋼板斷裂的發生。特別是若成為板寬為1200 mm以上的寬幅的鋼板，則存在容易發生起因於形狀不良的鋼板的斷裂的問題。[The problem to be solved by the invention] However, this method is a control for limiting the thickness of the steel sheet within an allowable range, and thus has the effect of suppressing the occurrence of defective sheet thickness, but cannot suppress the occurrence of cracking of the steel sheet. In particular, when the sheet width is a wide steel sheet with a sheet width of 1200 mm or more, there is a problem that fracture of the steel sheet due to poor shape easily occurs.

本發明是鑒於所述課題而成，其目的在於提供一種於不增大設備改造等的成本的情況下，即便為板寬較寬的鋼板亦能夠抑制斷裂的發生的壓延機的形狀控制方法及形狀控制裝置。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a shape control method of a rolling machine that can suppress the occurrence of fracture even in a steel sheet having a wide width without increasing the cost of equipment modification and the like, and to provide the same. Shape control device.

[解決課題之手段] 本發明的壓延機的形狀控制方法包括：測定步驟，測定壓延機的出側處的鋼板的形狀；以及控制步驟，基於所述測定步驟中所測定的鋼板的形狀來對壓延機進行控制，以使鋼板的形狀處於允許範圍內，所述控制步驟包括以下步驟：於作為壓延對象的鋼板的寬度超過規定值的情況下，將控制增益設定得較作為壓延對象的鋼板的寬度為規定值以下時的控制增益小。[Means of Solving Problems] The shape control method of the calender of the present invention includes: a measuring step of measuring the shape of the steel sheet at the exit side of the calender; and a control step of controlling the calender based on the shape of the steel sheet measured in the measuring step to The control step includes a step of setting the control gain to be less than a predetermined value than the width of the steel sheet to be rolled when the width of the steel sheet to be rolled exceeds a predetermined value so that the shape of the steel sheet is within an allowable range The control gain is small.

本發明的壓延機的形狀控制裝置包括：測定部件，測定壓延機的出側處的鋼板的形狀；以及控制部件，基於由所述測定部件測定的鋼板的形狀來對壓延機進行控制，以使鋼板的形狀處於允許範圍內，所述控制部件包括以下步驟：於作為壓延對象的鋼板的寬度超過規定值的情況下，將控制增益設定得較作為壓延對象的鋼板的寬度為規定值以下時的控制增益小。The shape control device for a rolling machine of the present invention includes: a measuring unit for measuring the shape of the steel sheet at the exit side of the rolling machine; and a control unit for controlling the rolling machine based on the shape of the steel sheet measured by the measuring unit so as to make the rolling machine The shape of the steel sheet is within the allowable range, and the control means includes a step of: setting a control gain to be lower than the width of the steel sheet to be rolled when the width of the steel sheet to be rolled exceeds a predetermined value when the width of the steel sheet to be rolled exceeds a predetermined value Control gain is small.

[發明的效果] 根據本發明的壓延機的形狀控制方法及形狀控制裝置，於不增大設備改造等的成本的情況下，即便為板寬較寬的鋼板亦可抑制斷裂的發生。[Effect of invention] According to the shape control method and shape control device of a calender of the present invention, the occurrence of fracture can be suppressed even in a steel sheet having a wide width, without increasing the cost of equipment modification or the like.

〔概念〕 首先，參照圖1的（a）、（b）對本發明的壓延機的形狀控制方法及形狀控制裝置的概念進行說明。〔concept〕 First, the concept of the shape control method and shape control apparatus of the calender of this invention is demonstrated with reference to FIG.1(a), (b).

圖1的（a）、（b）分別是表示板寬為1200 mm以下及超過1200 mm時的鋼板的目標形狀及實際形狀的圖。如圖1的（a）所示，於板寬為1200 mm以下的情況下，於實際形狀中，鋼板的寬度方向的邊緣部及中央部呈伸長形狀，邊緣部與中央部之間的中間位置（四分之一位置）呈拉伸形狀，從而均成為與目標形狀相同的傾向。於此種鋼板的形狀分佈中，由於邊緣部呈伸長形狀，因此鋼板不易斷裂。(a) and (b) of FIG. 1 are diagrams showing the target shape and the actual shape of the steel plate when the plate width is 1200 mm or less and more than 1200 mm, respectively. As shown in FIG. 1( a ), when the plate width is 1200 mm or less, in actual shape, the edge portion and the center portion in the width direction of the steel plate are elongated, and the intermediate position between the edge portion and the center portion (quarter position) has a stretched shape so that both tend to be the same as the target shape. In the shape distribution of such a steel plate, since the edge portion has an elongated shape, the steel plate is not easily broken.

與此相對，如圖1的（b）所示，於板寬超過1200 mm的情況下，於實際形狀中，存在板寬方向上的伸長形狀與拉伸形狀的分佈未必與目標形狀一致的部分（形狀不均），其區域亦寬。於此情況下，有用於調整部分地產生形狀不均的區域的形狀的壓延機的致動器成為過控制的可能性。而且，由於成為過控制而與產生了形狀不均的位置不同的部位的形狀走樣，藉此邊緣部附近的形狀更向拉伸方向變化等而鋼板容易斷裂。On the other hand, as shown in FIG. 1( b ), when the plate width exceeds 1200 mm, in the actual shape, there are parts where the distribution of the elongated shape and the stretched shape in the plate width direction does not necessarily match the target shape. (uneven shape), its area is also wide. In this case, there is a possibility that the actuator of the calender for adjusting the shape of the region in which the uneven shape is partially generated becomes overcontrolled. Furthermore, due to over-control, the shape of the part different from the position where the shape unevenness has occurred is misshapen, and the shape of the vicinity of the edge portion is further changed in the stretching direction, etc., and the steel sheet is easily broken.

先前，無論鋼板的板寬如何，致動器的控制增益均設為一定值。此處，所謂控制增益，表示對形狀進行控制的致動器的動作量。於檢測出的形狀相對於作為目標的形狀的偏差成為規定值以上的情況下，為了對形狀進行控制，致動器進行運作，但將其動作量的程度定義為控制增益。然而，於鋼板的板寬例如超過1200 mm等而大於規定的板寬的情況下，若使用相同的控制增益值，則成為過控制，形狀走樣增長，因此有發生鋼板的斷裂的可能性。因此，於本發明中，將容易發生鋼板的形狀走樣的鋼板的板寬預先確定為規定的板寬。而且，於作為壓延對象的鋼板的板寬超過規定的板寬的情況下，使對鋼板的形狀進行控制的致動器的控制增益較作為壓延對象的鋼板的板寬為規定的板寬以下時的控制增益小。具體而言，於圖1的（a）、（b）所示的例子中，於對板寬超過1200 mm的鋼板進行壓延時，使控制增益較板寬為1200 mm以下時的控制增益小。藉此，可於不增大設備改造等的成本的情況下抑制鋼板隨著鋼板的形狀走樣而斷裂，從而穩定地對鋼板進行壓延。Previously, the control gain of the actuator was set to a constant value regardless of the plate width of the steel plate. Here, the so-called control gain refers to the operation amount of the actuator that controls the shape. When the deviation of the detected shape from the target shape becomes a predetermined value or more, the actuator operates to control the shape, and the degree of the operation amount is defined as a control gain. However, when the sheet width of the steel sheet exceeds 1200 mm, for example, and is larger than a predetermined sheet width, if the same control gain value is used, it will become overcontrolled and the shape distortion will increase, so there is a possibility that the steel sheet will break. Therefore, in the present invention, the sheet width of the steel sheet that is prone to shape distortion of the steel sheet is predetermined as a predetermined sheet width. Then, when the width of the steel sheet to be rolled exceeds a predetermined width, the control gain of the actuator that controls the shape of the steel sheet is made smaller than the predetermined width of the steel sheet to be rolled. The control gain is small. Specifically, in the examples shown in FIGS. 1( a ) and ( b ), when rolling a steel sheet with a width exceeding 1200 mm, the control gain is made smaller than that when the width is 1200 mm or less. Thereby, the steel sheet can be prevented from being broken due to the shape distortion of the steel sheet, and the steel sheet can be rolled stably without increasing the cost of facility modification or the like.

〔實施例〕 接著，參照圖2及圖3對本發明的壓延機的形狀控制方法及形狀控制裝置的實施例進行說明。[Example] Next, embodiments of the shape control method and shape control apparatus of the calender of the present invention will be described with reference to FIGS. 2 and 3 .

於本實施例中，作為一例，於圖2所示的連續式冷軋機1中，使用最終壓延機座出側處的鋼板的寬度方向的形狀測定結果進行了鋼板的形狀控制。再者，圖2所示的連續式冷軋機1是藉由壓延機座3a～壓延機座3e對自卷軸2a送出的鋼板S進行壓延之後藉由卷軸2b捲取的壓延機。另外，於作為最終壓延機座的壓延機座3e的出側設置有測定鋼板S的寬度方向的形狀的形狀計10。而且，控制裝置11基於由形狀計10測量的鋼板S的寬度方向的形狀，對設置於各壓延機座的致動器（帶錐形的第一中間輥的移位控制或折彎機控制）進行控制，藉此將鋼板S的寬度方向的形狀控制於允許範圍內。In this Example, as an example, in the continuous cold rolling mill 1 shown in FIG. 2 , the shape control of the steel sheet was performed using the shape measurement result of the steel sheet at the exit side of the final rolling stand in the width direction. In addition, the continuous cold rolling mill 1 shown in FIG. 2 is a calender which rolls the steel sheet S sent out from the reel 2a by the rolling stand 3a - the rolling stand 3e, and is coiled by the reel 2b. Moreover, the shape meter 10 which measures the shape of the width direction of the steel sheet S is provided in the exit side of the rolling stand 3e which is the final rolling stand. Furthermore, the control device 11 controls the actuators (displacement control of the tapered first intermediate roll or control of the bending machine) provided in each rolling stand based on the shape of the steel sheet S in the width direction measured by the shape meter 10 . By performing control, the shape of the width direction of the steel sheet S is controlled within an allowable range.

另外，於本實施例中，鋼板S的板厚設為0.1 mm～3.5 mm，壓延速度設為30 rpm～2000 rpm。另外，鋼板S的板寬設為600 mm～1300 mm的範圍內。另外，變更控制增益的鋼板S的板寬設為根據過去的操作實績成為形狀走樣引起的斷裂發生率變高的邊界的1200 mm。而且，對圖3所示的通板數（線圈數）分別進行與板寬為1200 mm以下相同的控制增益下的壓延（現有例：通常增益）、相對於板寬為1200 mm以下的控制增益而言為1/2的控制增益下的壓延（本發明例1：增益值1/2）、及相對於板寬為1200 mm以下的控制增益而言為1/4的控制增益下的壓延（本發明例2：增益值1/4）。其結果，如圖3所示，現有例的斷裂率為3.9%左右，與此相對，本發明例的斷裂率為0%。藉此確認，根據本發明，可於不增大設備改造等的成本的情況下抑制鋼板斷裂的發生而穩定地進行壓延。In addition, in the present Example, the thickness of the steel sheet S was set to 0.1 mm to 3.5 mm, and the rolling speed was set to be 30 rpm to 2000 rpm. In addition, the sheet width of the steel sheet S is set to be in the range of 600 mm to 1300 mm. In addition, the plate width of the steel plate S for which the control gain was changed was set to 1200 mm, which is the boundary at which the occurrence rate of breakage due to shape distortion increases according to the past operational results. Furthermore, for the number of passing plates (the number of coils) shown in FIG. 3, rolling at the same control gain as the plate width of 1200 mm or less (conventional example: normal gain) and the control gain relative to the plate width of 1200 mm or less are performed. Rolling at a control gain of 1/2 (Example 1 of the present invention: gain value of 1/2), and rolling at a control gain of 1/4 with respect to a control gain of 1200 mm or less in width ( Example 2 of the present invention: gain value 1/4). As a result, as shown in FIG. 3 , the fracture rate of the conventional example was about 3.9%, whereas the fracture rate of the present example was 0%. From this, it was confirmed that, according to the present invention, the rolling can be performed stably while suppressing the occurrence of fracture of the steel sheet without increasing the cost of facility modification or the like.

以上，對應用了由本發明者等人進行的發明的實施方式進行了說明，但本發明並不受形成基於本實施方式的本發明的揭示的一部分的描述及圖式限定。例如，亦可應用於森吉米爾軋機（Sendzimir mill）等單機座的壓延機。即，基於本實施方式並由本領域技術人員等進行的其他實施方式、實施例及運用技術等全部包含於本發明的範疇內。As mentioned above, although the embodiment to which the invention made by the present inventors was applied has been described, the present invention is not limited to the description and drawings which form a part of the disclosure of the present invention based on the present embodiment. For example, it can also be applied to a single-stand calender such as a Sendzimir mill. That is, other embodiments, examples, operation techniques, and the like performed by those skilled in the art based on the present embodiment are all included in the scope of the present invention.

[產業上的可利用性] 根據本發明，可提供一種於不增大設備改造等的成本的情況下，即便為板寬較寬的鋼板亦能夠抑制斷裂的發生的壓延機的形狀控制方法及形狀控制裝置。[Industrial Availability] ADVANTAGE OF THE INVENTION According to this invention, the shape control method and shape control apparatus of a rolling machine which can suppress generation|occurrence|production of a fracture can be provided, even if it is a steel plate with a wide width|variety, without increasing the cost, such as facility modification.

1:連續式冷軋機 2a、2b:卷軸 3a～3e:壓延機座 10:形狀計 11:控制裝置 S:鋼板1: Continuous cold rolling mill 2a, 2b: Reels 3a～3e: Calendering stand 10: Shape meter 11: Control device S: steel plate

圖1的（a）、（b）是表示板寬為1200 mm以下及超過1200 mm時的鋼板的目標形狀及實際形狀的圖。 圖2是表示實施例中的連續式冷軋機的結構的示意圖。 圖3是表示現有例及本發明例的斷裂率的圖。(a) and (b) of FIG. 1 are diagrams showing the target shape and actual shape of the steel plate when the plate width is 1200 mm or less and more than 1200 mm. FIG. 2 is a schematic view showing the configuration of a continuous cold rolling mill in the example. FIG. 3 is a graph showing the fracture rate of a conventional example and an example of the present invention.

Claims (2)

一種壓延機的形狀控制方法，包括：測定步驟，測定壓延機的出側處的鋼板的形狀；以及控制步驟，基於所述測定步驟中所測定的鋼板的形狀來對壓延機進行控制，以使鋼板的形狀處於允許範圍內，所述控制步驟包括以下步驟：於作為壓延對象的鋼板的寬度超過1200mm的情況下，將控制增益設定得較作為壓延對象的鋼板的寬度為1200mm以下時的控制增益小。 A shape control method of a calender, comprising: a measuring step of measuring the shape of a steel sheet at an exit side of the calender; and a control step of controlling the calender based on the shape of the steel sheet measured in the measuring step so that the The shape of the steel sheet is within the allowable range, and the control step includes the step of setting a control gain to be higher than the control gain when the width of the steel sheet to be rolled is 1200 mm or less when the width of the steel sheet to be rolled exceeds 1200 mm Small. 一種壓延機的形狀控制裝置，包括：測定部件，測定壓延機的出側處的鋼板的形狀；以及控制部件，基於由所述測定部件測定的鋼板的形狀來對壓延機進行控制，以使鋼板的形狀處於允許範圍內，於作為壓延對象的鋼板的寬度超過1200mm的情況下，所述控制部件將控制增益設定得較作為壓延對象的鋼板的寬度為1200mm以下時的控制增益小。 A shape control device for a calender, comprising: a measuring unit for measuring the shape of a steel sheet at an exit side of the calender; and a control unit for controlling the calender based on the shape of the steel sheet measured by the measuring unit to make the steel sheet The shape of the steel sheet is within the allowable range, and when the width of the steel sheet to be rolled exceeds 1200 mm, the control means sets the control gain to be smaller than the control gain when the width of the steel sheet to be rolled is 1200 mm or less.
TW110108046A 2020-03-23 2021-03-08 Shape control method and shape control device of calender TWI769727B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020050557 2020-03-23
JP2020-050557 2020-03-23

Publications (2)

Publication Number Publication Date
TW202140161A TW202140161A (en) 2021-11-01
TWI769727B true TWI769727B (en) 2022-07-01

Family

ID=77891162

Family Applications (1)

Application Number Title Priority Date Filing Date
TW110108046A TWI769727B (en) 2020-03-23 2021-03-08 Shape control method and shape control device of calender

Country Status (6)

Country Link
US (1) US20230133751A1 (en)
EP (1) EP4129511B1 (en)
JP (1) JP6912026B1 (en)
MX (1) MX2022010778A (en)
TW (1) TWI769727B (en)
WO (1) WO2021192713A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805492A (en) * 1986-09-24 1989-02-21 Mitsubishi Denki Kabushiki Kaisha Method for controlling a shape of a plate
JP4423618B2 (en) * 2007-03-28 2010-03-03 株式会社日立製作所 Rolling shape control method and rolling shape control system
CN102581033A (en) * 2011-01-12 2012-07-18 宝山钢铁股份有限公司 Method for controlling opening degree of rough rolling edger during rolling of tapered slab
JP2017064790A (en) * 2015-09-30 2017-04-06 Ｊｆｅスチール株式会社 Shape control method and device in rolling machine
TW201803656A (en) * 2016-07-26 2018-02-01 東芝三菱電機產業系統股份有限公司 Edger control device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595362B2 (en) * 1976-10-14 1984-02-04 新日本製鐵株式会社 Plate thickness control method in plate rolling
JPH09174128A (en) * 1995-12-26 1997-07-08 Kawasaki Steel Corp Method for controlling shape of rolled stock
JP2005313190A (en) * 2004-04-28 2005-11-10 Nittetsu Elex Co Ltd Method for suppressing meandering in rolling mill
JP5363380B2 (en) * 2010-03-08 2013-12-11 株式会社日立製作所 Management system for hydraulic reduction control device and management method for hydraulic reduction control device
JP5799497B2 (en) 2010-11-25 2015-10-28 Ｊｆｅスチール株式会社 Thickness control method of rolling mill

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805492A (en) * 1986-09-24 1989-02-21 Mitsubishi Denki Kabushiki Kaisha Method for controlling a shape of a plate
JP4423618B2 (en) * 2007-03-28 2010-03-03 株式会社日立製作所 Rolling shape control method and rolling shape control system
CN102581033A (en) * 2011-01-12 2012-07-18 宝山钢铁股份有限公司 Method for controlling opening degree of rough rolling edger during rolling of tapered slab
JP2017064790A (en) * 2015-09-30 2017-04-06 Ｊｆｅスチール株式会社 Shape control method and device in rolling machine
TW201803656A (en) * 2016-07-26 2018-02-01 東芝三菱電機產業系統股份有限公司 Edger control device

Also Published As

Publication number Publication date
WO2021192713A1 (en) 2021-09-30
JPWO2021192713A1 (en) 2021-09-30
JP6912026B1 (en) 2021-07-28
TW202140161A (en) 2021-11-01
EP4129511A4 (en) 2023-08-09
MX2022010778A (en) 2022-09-26
EP4129511B1 (en) 2024-05-29
EP4129511A1 (en) 2023-02-08
US20230133751A1 (en) 2023-05-04

Similar Documents

Publication Publication Date Title
JP2010528874A (en) Rolling method of metal strip having adjustment of lateral position, and rolling mill suitable for this method
CN111194245B (en) Steel sheet manufacturing facility and steel sheet manufacturing method
US20080302158A1 (en) Method and Rolling Mill For Improving the Running-Out of a Rolled Metal Strip Whose Trailing End is Moving at Rolling Speed
KR20170076858A (en) Apparatus and method for maintaining flatness of rolling material
JP6828596B2 (en) Continuous casting equipment and plate crown control method
TWI769727B (en) Shape control method and shape control device of calender
JP2019038035A (en) Hat-shaped steel sheet pile, manufacturing method of hat-shaped steel sheet pile, and manufacturing facility therefor
US20230118015A1 (en) Method Of Controlling Flatness Of Strip Of Rolled Material, Control System And Production Line
JP2018158365A (en) Hot rolling method and hot rolling device
JP7314921B2 (en) Method for controlling meandering of hot-rolled steel strip, meandering control device, and hot rolling equipment
JP3848618B2 (en) Sheet width control method in cold rolling process
JP5910541B2 (en) Cold rolling equipment and cold rolling method
JP6874794B2 (en) Temper rolling method for hot-rolled steel sheet
WO2024042936A1 (en) Cold-rolling method and cold-rolling equipment
JP5928055B2 (en) Rolled material width control device and rolled material width control method
JP3664067B2 (en) Manufacturing method of hot rolled steel sheet
WO2023119640A1 (en) Tail end squeezing prevention device
JP4427872B2 (en) Sheet profile control method for tandem rolling mill
JP5463888B2 (en) Manufacturing method and manufacturing apparatus for hot-rolled steel sheet
JP6365559B2 (en) Control device and control method for temper rolling mill
JPH0515911A (en) Method for controlling edge drop in cold rolling
JPH09201613A (en) Method for suppressing meanderion of rolled stock in early stage of rolling
JP2002137012A (en) Meandering control method
JPH10296312A (en) Method for controlling width in cold tandem rolling
JPH05269527A (en) Method for controlling flat shape of metallic strip