EP2828012A1 - Procédé d'usinage d'un produit à laminer et laminoir - Google Patents

Procédé d'usinage d'un produit à laminer et laminoir

Info

Publication number
EP2828012A1
EP2828012A1 EP13721928.3A EP13721928A EP2828012A1 EP 2828012 A1 EP2828012 A1 EP 2828012A1 EP 13721928 A EP13721928 A EP 13721928A EP 2828012 A1 EP2828012 A1 EP 2828012A1
Authority
EP
European Patent Office
Prior art keywords
rolling
rolling stock
thickness
stand
stock
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.)
Withdrawn
Application number
EP13721928.3A
Other languages
German (de)
English (en)
Inventor
Hans-Joachim Felkl
Andreas MÜLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP13721928.3A priority Critical patent/EP2828012A1/fr
Publication of EP2828012A1 publication Critical patent/EP2828012A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/22—Hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/02—Tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/12—Rolling load or rolling pressure; roll force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2271/00—Mill stand parameters
    • B21B2271/02—Roll gap, screw-down position, draft position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/10—Motor power; motor current
    • 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
    • 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
    • B21B37/46—Roll speed or drive motor control
    • 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
    • B21B37/58—Roll-force control; Roll-gap control

Definitions

  • the invention relates to a method for processing rolling stock and a rolling mill.
  • rolling stock such as steel or various metals is rolled when passing through one or more rolling stands.
  • the rolling stock which is present in ⁇ example in the form of a strip to be rolled to a certain thickness.
  • the rolling stock undergoes a thickness control when passing through the individual rolling stands, which is carried out for example with the aid of a Gaugemeter or a mass flow controller.
  • the first object is achieved according to the invention with egg ⁇ nem method for processing rolling in a rolling mill with at least one rolling stand, with the following steps: a) before the entry of the rolling stock in the roll stand, the actual value of the hardness of the rolling stock from an observation value determines a preceding further roll stand, b) in dependence of the actual value is used to control the di ⁇ blocks of the rolled material after passing through the rolling mill on ei ⁇ NEN target value of a manipulated variable of the rolling mill voreinge ⁇ represents.
  • the determination of the actual value of the hardness of the rolling stock is carried out continuously while passing through the rolling stock through the rolling mill before the rolling stock enters the rolling mill, so that information of the hardness with respect to the considered location of the rolling stock is obtained.
  • al ⁇ so a location-dependent hardness of the rolling stock is determined.
  • fluctuations in the hardness of the rolling stock with respect to the location can be determined in particular.
  • Manipulated variables of the subsequent roll stand are a function of the actual value of the hardness, ie, in particular from the fluctuation of the actual value then in step b set such that the rolling stock reaches a target value after passing through the roll stand the di ⁇ blocks.
  • information relating to the hardness of the rolling stock is used in the rolling process and the manipulated variables of the rolling stand are changed in de ⁇ ren dependence, so that a predetermined target value is maintained with respect to the thickness of the rolling stock. It thus be compensated for fluctuations in the hardness of the rolling stock, this has before passing through the rolling stand and would normally lead to a thickness error after passing through the rolling stand.
  • the method according to the invention can be used both during cold rolling and during hot rolling.
  • the actual value of the hardness is determined from a Be ⁇ obachtungswert to any preceding further roll stand.
  • Such an observation value can be determined on the basis of at least one of the parameters rolling force of the preceding rolling stand, temperature of the rolling stock, strip tension, incoming Di ⁇ bridge of the rolling stock in the previous rolling stand, expiring thickness or estimated value of the roll gap thickness at the nip of the previous rolling mill. A measurement with a separate measuring device is then no longer necessary.
  • the employment of the rolling gap ⁇ can be used.
  • the hydraulic adjustment which moves the nip, pre-controlled. So will the expected Auffederungs selectedung the rolling stand compensated in time by the incoming strip thicknesses and hardness variations.
  • the feedforward control of the thickness can first act on the second stand or the second pass.
  • run by a plurality of stands may be the actual value again observed in the hardness depending ⁇ the roll stand and the calculated value may How-observation in a subsequent rolling mill derum as the basis of the feedforward control to control the thickness of the rolled material are used.
  • the actual value of the hardness of the rolling stock for the adaptation of the model can be used.
  • knowledge of the actual value of the hardness can be used to track the so-called Mate ⁇ rialmodul CM.
  • the CM material module, together with the scaffold module, is an important model variable for adapting the controller dynamics of all other thickness controllers, such as gauges, mass flow controllers and monitor control.
  • Fig. 1 shows a rolling mill with two rolling stands.
  • Fig. 1 shows a rolling mill 2, in this case, a cold rolling mill with a roll stand 4 for machining rolled 6.
  • the roll stand 4 has two rollers 8, the distance between which define the roll gap ⁇ w.
  • the rolling 6, here in the form of a slab has before pass of the roll stand 4 is a einlaufseiti- ge thickness do and di exit side thickness after passing ⁇ running through the roll stand 4 at.
  • the illustrated rolling mill 2 also has, in addition to the roll stand 4, a preceding wider roll stand 4a.
  • the aim of the rolling process is that after passing through the rolling stand 4, the rolling stock 6 assumes a predetermined outgoing-side thickness di.
  • the predetermined thickness di represents the target value I for the rolling process.
  • thickness regulators such as gauges or mass flow controllers in rolling mills.
  • temperature changes of the rolling material 6 may unwanted variations in hardness, so variab ⁇ le material properties are not the geometric type such as inhomogeneities in the metallic structure, roughness speeds of the surface or the tensile strength of the rolled material 6 are formed which influence the rolling process in a rolling stand.
  • the actual value I of the hardness of the rolling stock 6 is when using the method according to the invention in a step a) before the entry of the rolling stock 6 into the rolling stand 4 determined from an observation ⁇ value B at the preceding further roll stand 4a.
  • the observation value B at least one of the parameters rolling force of the preceding rolling stand 4, temperature of the rolling stock 6, strip tension, incoming thickness di of the rolling stock 6 in the preceding rolling stand 4 a, leak ⁇ th thickness do or estimated value of the roll gap thickness at the n roll w preceding rolling mill 4a detected by measurement.
  • the actual value I of the hardness of the rolling stock 6 is subsequently determined by means of a computer unit 16.
  • the determined actual value I of the hardness of the rolling stock 6 is then further processed in a pilot control device 12.
  • the pilot control device 12 serves to determine a value of a manipulated variable S as a function of the actual value I of the hardness of the rolling stock 6. This serves to control the thickness di of the rolling stock 6 after passing through the roll stand 4 to a predetermined desired value.
  • the manipulated variable S is the setting of the roll gap w, which is moved with hydraulic cylinders 14.
  • the speeds or torques of the drives, not shown, of the rollers 8 of the roll stand 4 come into question.
  • the roll gap w can be moved so that the actual value of the auslaufseifigen thickness di of the rolling stock 6 is controlled to a desired value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne un procédé d'usinage d'un produit à laminer et un laminoir. L'invention concerne un procédé d'usinage d'un produit à laminer (6) dans un laminoir (2) comprenant au moins une cage (4). Ledit procédé comprend les étapes suivantes : a) avant l'entrée du produit à laminer (6) dans la cage de laminage (4), la valeur réelle (I) de la dureté du produit à laminer (6) est déterminée à partir d'une valeur observée (B) sur une cage de laminage (4a) précédente ; b) une grandeur de réglage (S) de la cage de laminage (4) est préréglée sur une valeur théorique en fonction de la valeur réelle (I) pour contrôler l'épaisseur du produit à laminer (6) une fois qu'il a traversé la cage de laminage (4). L'invention concerne par ailleurs un laminoir permettant de mettre en œuvre le procédé selon l'invention.
EP13721928.3A 2012-05-07 2013-04-22 Procédé d'usinage d'un produit à laminer et laminoir Withdrawn EP2828012A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13721928.3A EP2828012A1 (fr) 2012-05-07 2013-04-22 Procédé d'usinage d'un produit à laminer et laminoir

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12166917.0A EP2662158A1 (fr) 2012-05-07 2012-05-07 Procédé de traitement de produits à laminer et laminoir
EP13721928.3A EP2828012A1 (fr) 2012-05-07 2013-04-22 Procédé d'usinage d'un produit à laminer et laminoir
PCT/EP2013/058279 WO2013167366A1 (fr) 2012-05-07 2013-04-22 Procédé d'usinage d'un produit à laminer et laminoir

Publications (1)

Publication Number Publication Date
EP2828012A1 true EP2828012A1 (fr) 2015-01-28

Family

ID=48428438

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12166917.0A Withdrawn EP2662158A1 (fr) 2012-05-07 2012-05-07 Procédé de traitement de produits à laminer et laminoir
EP13721928.3A Withdrawn EP2828012A1 (fr) 2012-05-07 2013-04-22 Procédé d'usinage d'un produit à laminer et laminoir

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12166917.0A Withdrawn EP2662158A1 (fr) 2012-05-07 2012-05-07 Procédé de traitement de produits à laminer et laminoir

Country Status (4)

Country Link
EP (2) EP2662158A1 (fr)
CN (1) CN104321151A (fr)
BR (1) BR112014027650A2 (fr)
WO (1) WO2013167366A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106029244B (zh) * 2013-12-20 2020-03-20 诺维尔里斯巴西有限公司 用以控制串列式轧机中的温度的动态减小转变(dsr)
EP3210682A1 (fr) * 2016-02-23 2017-08-30 Primetals Technologies Germany GmbH Compensation complete des excentricites de cylindre
DE102019217966A1 (de) 2019-11-21 2021-05-27 Sms Group Gmbh Einstellung einer Auslauftemperatur eines aus einer Walzstraße auslaufenden Metallbands
WO2023146701A1 (fr) * 2022-01-27 2023-08-03 Novelis Inc. Système et procédé de commande de filetage dans un laminoir
DE102022211278B3 (de) * 2022-10-25 2023-12-28 Sms Group Gmbh Verfahren und Computerprogramm zum Anpassen des Soll-Dickenwertes für eine Regelung der Dicke eines neu zu walzenden Bandes für mindestens ein Walzgerüst

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1270868A (en) * 1968-09-23 1972-04-19 Froehling Fa Josef Methods and apparatus for controlling a machine for processing strip material
AT374705B (de) * 1982-09-07 1984-05-25 Voest Alpine Ag Vorrichtung zur anstellregelung eines kaltwalzgeruestes
US5054302A (en) * 1989-04-07 1991-10-08 Kawasaki Steel Corporation Hardness compensated thickness control method for wet skin-pass rolled sheet
JP2535690B2 (ja) * 1991-12-27 1996-09-18 新日本製鐵株式会社 タンデム圧延機における板厚制御方法
DE19729773C5 (de) * 1997-07-11 2007-05-10 Siemens Ag Verfahren und Einrichtung zum Walzen eines Metallbandes
DE19831480C1 (de) * 1998-07-14 2000-01-13 Schloemann Siemag Ag Verfahren zum Voreinstellen von Kaltverformungsanlagen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013167366A1 *

Also Published As

Publication number Publication date
BR112014027650A2 (pt) 2017-06-27
CN104321151A (zh) 2015-01-28
EP2662158A1 (fr) 2013-11-13
WO2013167366A1 (fr) 2013-11-14

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