EP0972580A2 - Verfahren zum Voreinstellen von Kaltverformungsanlagen - Google Patents
Verfahren zum Voreinstellen von Kaltverformungsanlagen Download PDFInfo
- Publication number
- EP0972580A2 EP0972580A2 EP99110703A EP99110703A EP0972580A2 EP 0972580 A2 EP0972580 A2 EP 0972580A2 EP 99110703 A EP99110703 A EP 99110703A EP 99110703 A EP99110703 A EP 99110703A EP 0972580 A2 EP0972580 A2 EP 0972580A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hardness
- cold
- rolling
- measured
- carried out
- 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
- 238000000034 method Methods 0.000 title claims description 19
- 238000009434 installation Methods 0.000 title abstract 2
- 238000012937 correction Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims description 20
- 238000007542 hardness measurement Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010972 statistical evaluation Methods 0.000 description 1
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
- B21B37/58—Roll-force control; Roll-gap control
-
- 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
- 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
- B21B1/30—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 non-continuous process
- B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
-
- 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
- B21B2001/228—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 skin pass rolling or temper rolling
-
- 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
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
- B21B38/105—Calibrating or presetting roll-gap
Definitions
- the invention relates to a method for presetting Cold forming systems, such as cold rolling mills, skin pass stands, Stretch bending judges, straighteners and others.
- Cold rolling mills are in reversible and tandem construction based on a pass schedule before the start of rolling preset. This is supposed to be calculated by the Strain causes deformation of the roll stands compensated and a rolled product with the desired Dimensions are made.
- the invention has for its object a method for optimal pass schedule design for the respective rolling batch create.
- the task is solved in that the hardness of the material to be deformed shortly before it is cold-formed measured and to correct its solidification curve and the presetting of the cold forming system based on this is used.
- the advantage of adapting the Solidification curve over a hardness measurement is that on the one hand, deviations in the form strength of a Material (depending among other things on the chemical Composition, differences in cooling after Hot rolling or during the annealing process, structural condition general) without prior information in the Stitch plan design can go to the other different materials with similar Hardening behavior with only one hardening curve can be managed.
- the standard hardening curve is one Material or a group of materials with associated Standard values of hardness, yield strength, tensile strength, etc. through additive or multiplicative linking with a Correction element is corrected, at least one over the measured hardness value contains determined tensile strength.
- An advantageous development of the invention consists in that the difference between that by means of hardness measurement calculated in advance and the one actually measured during rolling Rolling force of the first stand or the first pass mathematical correction of the pre-calculated rolling force of the following roll stand in tandem systems or the following stitch is used in reversing systems.
- There one further adaptation of the hardening curve through hardness measurement not possible between the rolling stands of a tandem mill is the difference between the predicted and measured rolling force of a roll stand only arithmetically determined correction value for the rolling force of each following roll stand determined.
- the hardness measurement is dynamic and preferably on several
- the material to be deformed is placed minimized required measurement time and the measurement result averaged and therefore representative of the respective batch.
- the known EQUOTIP measurement method is preferred used.
- the hardness measurement is preferred during process-related downtimes of the Cold forming systems are carried out. As a result, none occurs Delay in the production process. So the hardness measurement in tandem streets preferably between decoiler and Welding machine done during welding and thus the Use welding time. The hardness is measured accordingly for reversing streets, preferably in the area of their Thickness gauges during calibration and required also no additional time.
- each k f ( ⁇ ) value is multiplied by the factor k (H 0 , H 1 , R m0 ).
- Both correction models reflect the influence of the measured hardness H 1 on the hardening force k f1 ( ⁇ ).
- the method according to the invention is not only suitable for Cold rolling mills, but also for all types of Skin pass stands, stretch bending judges, straighteners (belt and Sheet), also for cold profile straightening machines and Cold rolling mills for profiles and wire.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Control Of Heat Treatment Processes (AREA)
- Forging (AREA)
- Heat Treatment Of Articles (AREA)
- Hydroponics (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
Description
- Fig. 1
- eine Verfestigungskurve mit additiver Korrektur,
- Fig. 2
- eine Verfestigungskurve mit multiplikativer Korrektur.
Claims (10)
- Verfahren zum Voreinstellen von Kaltverformungsanlagen, wie Kaltwalzstraßen, Dressiergerüste, Streckbiegerichter, Richtmaschinen und andere, dadurch gekennzeichnet, dass die Härte des zu verformenden Materials kurz vor dessen Kaltverformung gemessen und zur Korrektur seiner Verfestigungskurve und der daraus basierenden Voreinstellung der Kaltverformungsanlage verwendet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Standard-Verfestigungskurve eines Werkstoffs oder einer Werkstoffgruppe mit dazugehörenden Standardwerten von Härte, Streckgrenze, Zugfestigkeit usw. durch additive oder multiplikative Verknüpfung mit einem Korrekturglied korrigiert wird, das zumindest eine über den gemessenen Härtewert ermittelte Zugfestigkeit enthält.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Differenz zwischen der mittels Härtemessung vorausberechneten und der beim Walzen effektiv gemessenen Walzkraft des ersten Gerüstes bzw. des ersten Stiches zur rechnerischen Korrektur der vorausberechneten Walzkraft des jeweils folgenden Walzgerüstes bei Tandemanlagen bzw. des folgenden Stiches bei Reversieranlagen verwendet wird.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Anpassung der Standardverfestigungskurve nach der jeweils gemessenen Härte des Walzgutes und nach ausgewerteten Abweichungen und Korrekturwerten der Walzkraft früherer Walzungen erfolgt.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Härtemessung dynamisch erfolgt, vorzugsweise nach dem EQUOTIP-Messverfahren.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Härtemessung an mehreren Stellen des zu verformenden Materials erfolgt.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zusätzlich zur Härte auch die Temperatur und die Oberflächenreibung des zu verformenden Materials gemessen werden.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Härtemessung vorzugsweise während verfahrensbedingter Stillstandszeiten der Kaltverformungsanlage erfolgt.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Härtemessung bei Tandemstraßen vorzugsweise zwischen Abhaspel und Schweißmaschine während des Schweißens erfolgt.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Härtemessung bei Reversierstraßen, vorzugsweise in Bereich von deren Dickenmessgeräte während der Eichung derselben erfolgt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19831480A DE19831480C1 (de) | 1998-07-14 | 1998-07-14 | Verfahren zum Voreinstellen von Kaltverformungsanlagen |
DE19831480 | 1998-07-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0972580A2 true EP0972580A2 (de) | 2000-01-19 |
EP0972580A3 EP0972580A3 (de) | 2002-12-11 |
EP0972580B1 EP0972580B1 (de) | 2005-08-10 |
Family
ID=7873967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99110703A Expired - Lifetime EP0972580B1 (de) | 1998-07-14 | 1999-06-02 | Verfahren zum Voreinstellen von Kaltverformungsanlagen |
Country Status (7)
Country | Link |
---|---|
US (1) | US6161406A (de) |
EP (1) | EP0972580B1 (de) |
JP (1) | JP4390917B2 (de) |
AT (1) | ATE301510T1 (de) |
CA (1) | CA2277550C (de) |
DE (2) | DE19831480C1 (de) |
ES (1) | ES2245061T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009060828A1 (de) | 2009-04-02 | 2010-10-14 | Sms Siemag Ag | Walzanlage zum kontinuierlichen Walzen von bandförmigem Walzgut |
EP2662158A1 (de) * | 2012-05-07 | 2013-11-13 | Siemens Aktiengesellschaft | Verfahren zur Bearbeitung von Walzgut und Walzwerk |
CN103357656B (zh) * | 2013-07-08 | 2015-02-04 | 济钢集团有限公司 | 一种大辊径大压下率冷轧极薄带钢的生产工艺 |
CN109248927B (zh) * | 2017-07-13 | 2019-12-13 | 鞍钢股份有限公司 | 一种轧制力系数限值分规格控制方法 |
TWI711496B (zh) * | 2020-01-21 | 2020-12-01 | 中國鋼鐵股份有限公司 | 改善鋼板溫度控制軋延製程設定的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0102937A1 (de) * | 1982-09-07 | 1984-03-14 | VOEST-ALPINE Aktiengesellschaft | Vorrichtung zur Anstellregelung eines Kaltwalzgerüstes |
JPS60250816A (ja) * | 1984-05-29 | 1985-12-11 | Kawasaki Steel Corp | 冷間圧延機における初期ロ−ル間隙制御方法 |
DE4015750A1 (de) * | 1989-05-19 | 1990-11-22 | Karl Heinz Dr Ing Koethemann | Verfahren zur herstellung von kaltgewalzten baendern aus nichteisenmetall, eisen und deren legierungen |
EP0436762A1 (de) * | 1990-01-12 | 1991-07-17 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Verfahren und Anlage zum Erzeugen einer vorgegebenen Streckgrenzen-Festigkeit und Oberflächenrauhigkeit im Zuge des Kaltnachwalzens vorbehandelter Metallbänder |
Family Cites Families (5)
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 |
US3820366A (en) * | 1972-11-06 | 1974-06-28 | Westinghouse Electric Corp | Rolling mill gauge control method and apparatus including temperatureand hardness correction |
US5054302A (en) * | 1989-04-07 | 1991-10-08 | Kawasaki Steel Corporation | Hardness compensated thickness control method for wet skin-pass rolled sheet |
US5609053A (en) * | 1994-08-22 | 1997-03-11 | Alcan Aluminum Corporation | Constant reduction multi-stand hot rolling mill set-up method |
DE19622825B4 (de) * | 1996-06-07 | 2005-03-31 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Voreinstellung für Kaltwalzreversiergerüst |
-
1998
- 1998-07-14 DE DE19831480A patent/DE19831480C1/de not_active Expired - Fee Related
-
1999
- 1999-06-02 AT AT99110703T patent/ATE301510T1/de active
- 1999-06-02 DE DE59912379T patent/DE59912379D1/de not_active Expired - Lifetime
- 1999-06-02 ES ES99110703T patent/ES2245061T3/es not_active Expired - Lifetime
- 1999-06-02 EP EP99110703A patent/EP0972580B1/de not_active Expired - Lifetime
- 1999-07-08 US US09/349,633 patent/US6161406A/en not_active Expired - Lifetime
- 1999-07-08 JP JP19475899A patent/JP4390917B2/ja not_active Expired - Lifetime
- 1999-07-09 CA CA002277550A patent/CA2277550C/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0102937A1 (de) * | 1982-09-07 | 1984-03-14 | VOEST-ALPINE Aktiengesellschaft | Vorrichtung zur Anstellregelung eines Kaltwalzgerüstes |
JPS60250816A (ja) * | 1984-05-29 | 1985-12-11 | Kawasaki Steel Corp | 冷間圧延機における初期ロ−ル間隙制御方法 |
DE4015750A1 (de) * | 1989-05-19 | 1990-11-22 | Karl Heinz Dr Ing Koethemann | Verfahren zur herstellung von kaltgewalzten baendern aus nichteisenmetall, eisen und deren legierungen |
EP0436762A1 (de) * | 1990-01-12 | 1991-07-17 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Verfahren und Anlage zum Erzeugen einer vorgegebenen Streckgrenzen-Festigkeit und Oberflächenrauhigkeit im Zuge des Kaltnachwalzens vorbehandelter Metallbänder |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 122 (M-476), 7. Mai 1986 (1986-05-07) -& JP 60 250816 A (KAWASAKI SEITETSU KK), 11. Dezember 1985 (1985-12-11) * |
Also Published As
Publication number | Publication date |
---|---|
DE59912379D1 (de) | 2005-09-15 |
US6161406A (en) | 2000-12-19 |
EP0972580B1 (de) | 2005-08-10 |
JP4390917B2 (ja) | 2009-12-24 |
DE19831480C1 (de) | 2000-01-13 |
CA2277550C (en) | 2007-09-25 |
ATE301510T1 (de) | 2005-08-15 |
EP0972580A3 (de) | 2002-12-11 |
ES2245061T3 (es) | 2005-12-16 |
CA2277550A1 (en) | 2000-01-14 |
JP2000042602A (ja) | 2000-02-15 |
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