EP1093865A2 - Procédé de réduction des mitrailles de ferrailles pour laminage de bandes metalliques jointes par soudures et laminoir tandem pour éxécuter ce procédé - Google Patents

Procédé de réduction des mitrailles de ferrailles pour laminage de bandes metalliques jointes par soudures et laminoir tandem pour éxécuter ce procédé Download PDF

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Publication number
EP1093865A2
EP1093865A2 EP00121628A EP00121628A EP1093865A2 EP 1093865 A2 EP1093865 A2 EP 1093865A2 EP 00121628 A EP00121628 A EP 00121628A EP 00121628 A EP00121628 A EP 00121628A EP 1093865 A2 EP1093865 A2 EP 1093865A2
Authority
EP
European Patent Office
Prior art keywords
rolling
strip
stand
roll
stands
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
Application number
EP00121628A
Other languages
German (de)
English (en)
Other versions
EP1093865A3 (fr
EP1093865B1 (fr
Inventor
Dipl.-Ing. Noé Rolf
Dipl.-Ing Dr. mont Andreas Noé
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.)
BWG Bergwerk und Walzwerk Maschinenbau GmbH
Original Assignee
BWG Bergwerk und Walzwerk Maschinenbau GmbH
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 BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH
Publication of EP1093865A2 publication Critical patent/EP1093865A2/fr
Publication of EP1093865A3 publication Critical patent/EP1093865A3/fr
Application granted granted Critical
Publication of EP1093865B1 publication Critical patent/EP1093865B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21B1/28—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 by cold-rolling, e.g. Steckel cold mill
    • 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
    • B21B37/48—Tension control; Compression control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • B21B41/12—Arrangements of interest only with respect to provision for indicating or controlling operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
    • 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
    • B21B2013/003—Inactive rolling stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • 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
    • B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/51—Diminishing, minimizing or reducing entities relating to handled material
    • B65H2601/511—Waste of handled material

Definitions

  • the invention relates to a method for reducing the Scrap length when rolling welded seams Metal strips, especially when cold rolling austenitic and ferritic stainless steel strips.
  • tandem lines with two or more rolling stands known. With such tandem streets either one in essentially straight, tight strip guidance between the rolling stands realized or provided a loop lifter, around a strip length compensation between the rolling stands to be able to generate.
  • tandem mills or rolling mills are becoming increasingly in-line in belt process lines used, e.g. B. in continuous rolling lines, continuous, pickling and Cold rolling lines or continuous, annealing, pickling and cold rolling lines for stainless steel strips, etc.
  • strip processing lines are run continuously through the metal strips to be treated. These metal strips are unwound from coils and connected by means of welds. The roll stands must be carried out regularly when going through the welds be opened.
  • the minimum scrap length corresponds twice the distance between the two stands, because the one corresponding to this distance with respect to the strip length leading the weld seam also only in one Roll stand and consequently partially rolled is like that in with regard to the strip length trailing the weld seam.
  • the rolls are changed every 1 - 10 coils.
  • the invention has for its object a method of Specify embodiment described above, after which there is scrap loss when passing through welds by rolling mills that are open for this considerably and accurate strip tension measurements between the roll stands as well as an exact presetting of the roll stands achieve in a simple and functional manner to let.
  • the invention teaches a method for achieving this object to reduce the scrap length when rolling medium Welded seams of connected metal strips, especially when Cold rolling of austenitic and ferritic stainless steel strips, in a continuous tandem street with at least two roll stands, after which the respective weld seam before the first roll stand stopped or crept is, while the second mill stand that in relation to the The metal strip leading the weld seam rolls on and that Metal strip to be further rolled from a between two roll stands arranged strip store receives the first roll stand opened and the weld seam through the first rolling stand is driven through, then the first rolling stand closed and the weld after passing through of the strip store stopped in front of the second roll stand or is creeping while the first rolling stand that trailing in relation to the weld seam Metal strip rolls and the rolled metal strip from the strip storage is recorded, the second roll stand is opened and the weld seam is passed through the second roll stand then the second roll stand is closed and so on, and the respective weld in the area of the tape outlet from the connecting them Metal strips
  • the inventive method with tandem streets more than two roll stands will work if between Two or at least two roll stands a strip storage is arranged.
  • the Roll stands can optionally be changed, because the tape storage is dimensioned so that it is on the one hand can be practically emptied during the first Roll stand is open and the second roll stand is the The metal strip leading the weld seam continues to roll and can then be completely filled again, while the second mill stand is open and the first Rolling mill rolls the metal strip lagging the weld seam and delivers to the tape storage.
  • the Invention reduces the scrap length in the tandem mill and their rolling stands running and possibly continuous metal belts on practical the seam width of the connecting the metal strips Welds so that the scrap waste goes to zero, at least extremely minimized.
  • the tandem rolling of welded metal strips and stainless steel strips In-line in continuously working belt process lines respectively.
  • the invention further teaches that the belt tension in the lead-in area and the run-out area of the roll stands is measured, preferably also in the inlet area and outlet area of the Tape storage is measured.
  • the invention from the knowledge that the metal strips between the rolling stands and through the arranged there Tape storage can be deflected by an angle of ⁇ 90 °. Thereby the influence of the bending stiffness of the metal strips the measurement that is too large at small wrap angles Measurement errors leads, negligibly small. It just has to the strip weight must also be taken into account in the measurement. This enables a sufficiently precise strip tension measurement realize between the rolling stands and a more stable Set the rolling process.
  • the belt pulls are expedient behind the first roll stand and in front of the second roll stand set.
  • the tape strength can be determined by measuring the required tensile force for a given degree of stretch in an upstream stretch bending straightening system and / or about measuring the for a given skin pass level required rolling force in an upstream Skin pass mill to be determined.
  • stretch bending straightening depends on the required pulling force for a given one Degree of stretching from the yield point and the flow curve, while the skin pass the required rolling force for a predetermined skin pass from the yield point and depends on the flow curve. It is therefore possible from measurements the tape strength properties on upstream equipment of a coil before rolling to predetermine and a rule model in the Let the setpoint flow into account. Through improved Target values can be avoided overrolling and strip breaks.
  • the measures according to the invention lead to a higher output during rolling and a higher Productivity of the entire system.
  • the invention also relates to a tandem mill especially to carry out the method according to the invention is suitable and at least two roll stands for rolling Metal strips, especially for cold rolling austenitic and has ferritic metal strips.
  • This tandem road is characterized in that between the two roll stands a strip store for rolling metal strips arranged with alternately open roll stands is. It can be in front of and behind and, if necessary, between the Roll stand strip tension measuring devices can be arranged. Such tape tension measuring devices can also be in front of and behind the tape storage. With these tape tension measuring devices it is preferably load cells under the bearings of pulleys and / or tensioners for the continuous metal bands and a band wrap of at least 45 °, preferably ⁇ 90 °. Actually let it load cells for measuring tape tension on rolls with a Use belt wrapping up to 180 ° or more. Thereby are measurement errors as they are in rolls with small Wrap angles can occur almost completely, can are neglected in any case.
  • the tandem road has two Roll stands 4, 5.
  • Between the two roll stands 4, 5 is a strip storage 6 for rolling the continuous Metal strips 7 with alternately open roll stands 4, 5 shown.
  • In front and behind the roll stands 4, 5 are Bandzugmeßvorraumen 8, 9 arranged, namely on the one hand in the area of the inlet clamping set 2, on the other hand in Area of the outlet clamping set 3. Beyond that too 6 tape tension devices in front and behind the tape storage device 10, 11 arranged.
  • the belt store 6 has a deflecting roller that can be raised and lowered 12 for the incoming and outgoing metal strip 7, the can be driven.
  • 3 is the first roll stand 4th opened, a roll change may have taken place, the weld seam 13 has passed the first roll stand 4 and the first roll stand 4 has been closed again, while the second roll stand 5 has continuously rolled on. 4, the weld 13 is up to the second roll stand 5 driven and stopped there while the first closed roll stand 4 that of the weld 13 subsequent metal strip 7a rolls and the strip storage 6 is loaded with rolled metal strip 7a.
  • the cutting out or cutting out of the weld seam 13 it can be done in the area of the tape outlet such that the scrap length to the width of the weld 13 is reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP00121628A 1999-10-21 2000-10-04 Procédé de réduction des mitrailles de ferrailles pour laminage de bandes metalliques jointes par soudures et laminoir tandem pour éxécuter ce procédé Expired - Lifetime EP1093865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19950609 1999-10-21
DE19950609A DE19950609C2 (de) 1999-10-21 1999-10-21 Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweißnähten verbundener Metallbänder und Tandemstraße zur Durchführung des Verfahrens

Publications (3)

Publication Number Publication Date
EP1093865A2 true EP1093865A2 (fr) 2001-04-25
EP1093865A3 EP1093865A3 (fr) 2001-05-02
EP1093865B1 EP1093865B1 (fr) 2003-08-20

Family

ID=7926326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121628A Expired - Lifetime EP1093865B1 (fr) 1999-10-21 2000-10-04 Procédé de réduction des mitrailles de ferrailles pour laminage de bandes metalliques jointes par soudures et laminoir tandem pour éxécuter ce procédé

Country Status (6)

Country Link
US (1) US6357273B1 (fr)
EP (1) EP1093865B1 (fr)
AT (1) ATE247534T1 (fr)
DE (2) DE19950609C2 (fr)
ES (1) ES2200769T3 (fr)
ZA (1) ZA200005828B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105215063A (zh) * 2015-10-24 2016-01-06 本钢不锈钢冷轧丹东有限责任公司 一种立式入口活套
WO2020053230A1 (fr) 2018-09-10 2020-03-19 voestalpine Automotive Components Dettingen GmbH & Co. KG Procédé et dispositif pour relier des pièces de tôles de façon à former des paquets de tôles

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4150276B2 (ja) * 2003-03-20 2008-09-17 新日本製鐵株式会社 金属板材の圧延方法および圧延装置
DE102004041732A1 (de) * 2004-08-28 2006-03-02 Sms Demag Ag Verfahren zum Richten eines Metallbandes und Richtmaschine
US7578217B2 (en) * 2005-10-26 2009-08-25 The Gillette Company Manufacturing razor blades
US8607667B2 (en) * 2005-10-26 2013-12-17 The Gillette Company Manufacturing razor blades
DE102015116990A1 (de) * 2015-10-06 2017-04-06 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Anlage zum kontinuierlichen Herstellen von Verbundbändern oder -blechen
DE102019110271A1 (de) * 2019-04-18 2020-01-02 Primetals Technologies Austria GmbH Kaltwalzwerk mit alternativer Zuführung eines Stahlbandes über zwei verschiedene Wege
JP7135991B2 (ja) * 2019-04-25 2022-09-13 トヨタ自動車株式会社 校正判断装置、及び校正判断方法
CN114054512A (zh) * 2020-08-03 2022-02-18 上海梅山钢铁股份有限公司 一种酸洗板厚度数据归户方法
CN112453053B (zh) * 2020-09-28 2023-07-11 甘肃酒钢集团宏兴钢铁股份有限公司 薄规格及极薄规格带钢生产中光整机处带钢起筋消除方法
CN114789199B (zh) * 2021-10-14 2024-01-12 天津市新宇彩板有限公司 冷轧剪前夹送辊的自动精确控制方法及系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441691A1 (de) * 1984-11-15 1986-05-22 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Schlingenturm fuer metallbaender
EP0509177A2 (fr) * 1991-04-18 1992-10-21 T. Sendzimir, Inc. Procédé et installation pour fabriquer des bandes d'acier inoxydable laminées à froid
EP0936002A2 (fr) * 1998-02-14 1999-08-18 Sms Schloemann-Siemag Aktiengesellschaft Procédé de laminage pour une bande, en particulier une bande métallique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1575818A (fr) * 1968-05-16 1969-07-25
US3835681A (en) * 1973-03-16 1974-09-17 Wean United Inc Continuous rolling mill
US4179913A (en) * 1976-10-29 1979-12-25 National Steel Corporation Metal strip tensioning apparatus for use in continuous strip reduction cold mill and method
JPS6227271A (ja) * 1985-07-25 1987-02-05 Mitsubishi Electric Corp 連続処理設備の速度制御装置
DE4201471C2 (de) * 1992-01-21 1995-04-20 Walter Dr Ing Ammermann Verfahren und Vorrichtung zum Bearbeiten von Schweißnähten, um Überdicken im Nahtbereich von Bandverbindungen durch partielles Walzen zu vermeiden

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441691A1 (de) * 1984-11-15 1986-05-22 Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer Schlingenturm fuer metallbaender
EP0509177A2 (fr) * 1991-04-18 1992-10-21 T. Sendzimir, Inc. Procédé et installation pour fabriquer des bandes d'acier inoxydable laminées à froid
EP0936002A2 (fr) * 1998-02-14 1999-08-18 Sms Schloemann-Siemag Aktiengesellschaft Procédé de laminage pour une bande, en particulier une bande métallique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105215063A (zh) * 2015-10-24 2016-01-06 本钢不锈钢冷轧丹东有限责任公司 一种立式入口活套
WO2020053230A1 (fr) 2018-09-10 2020-03-19 voestalpine Automotive Components Dettingen GmbH & Co. KG Procédé et dispositif pour relier des pièces de tôles de façon à former des paquets de tôles

Also Published As

Publication number Publication date
EP1093865A3 (fr) 2001-05-02
US6357273B1 (en) 2002-03-19
DE19950609C2 (de) 2001-10-18
ZA200005828B (en) 2001-05-17
DE50003345D1 (de) 2003-09-25
DE19950609A1 (de) 2001-05-03
EP1093865B1 (fr) 2003-08-20
ES2200769T3 (es) 2004-03-16
ATE247534T1 (de) 2003-09-15

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