EP0972580B1 - Verfahren zum Voreinstellen von Kaltverformungsanlagen - Google Patents
Verfahren zum Voreinstellen von Kaltverformungsanlagen Download PDFInfo
- Publication number
- EP0972580B1 EP0972580B1 EP99110703A EP99110703A EP0972580B1 EP 0972580 B1 EP0972580 B1 EP 0972580B1 EP 99110703 A EP99110703 A EP 99110703A EP 99110703 A EP99110703 A EP 99110703A EP 0972580 B1 EP0972580 B1 EP 0972580B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hardness
- rolling
- cold
- carried out
- measured
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 20
- 238000009434 installation Methods 0.000 title abstract description 3
- 238000012937 correction Methods 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims description 29
- 238000007542 hardness measurement Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000005482 strain hardening Methods 0.000 claims description 6
- 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
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 11
- 230000008023 solidification Effects 0.000 description 11
- 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
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000012545 processing Methods 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 installations, such as cold rolling mills, temper rolling mills, stretch bending mills, straightening machines and other.
- Cold rolling mills are used in reversing and tandem construction due to a preprocessing plan pre-set before the start of rolling. This should be the Deformations caused by the predicted stresses Rolling stands compensated and a rolled product with the desired dimensions getting produced.
- strain hardening is known, for example, from EP-A-0 102 937 (US Pat used there for pitch control) of EP - A - 0 436 762 and JP - A - 60 250 816 known, wherein in the latter the measurement of the hardness of Walzgutes is mentioned before the work hardening.
- the invention is based on the object, a method for optimal Stichplanaustechnisch to create for the respective Walzcharge.
- the stated object is achieved in that the hardness of the deformed Material measured just before its cold deformation and to correct its hardening curve and the preset for stitch plan optimization based on it the cold deformation plant is used.
- the advantage of adapting the hardening curve about a hardness measurement is that on the one hand deviations in the Umformfesttechnik of a material (depending among other things on the chemical composition, differences in cooling after hot rolling or during the annealing process, structural state in general) without prior information directly before the start of rolling can be included in the layout design and on the other, different materials with similar hardening behavior can be managed with only one hardening curve.
- the standard solidification curve of a material or a Material group with associated standard values of hardness, yield strength, Tensile strength, etc. by additive or multiplicative linkage with a Correction member is corrected, the at least one of the measured hardness value contains determined tensile strength.
- An advantageous development of the invention is that the difference between the calculated by means of hardness measurement and the effective measured during rolling rolling force of the first stand or the first stitch for mathematical correction of the predicted rolling force of the following rolling stand in tandem systems or the following trick is used in reversing. Since a further adaptation of the solidification curve by hardness measurement between the rolling stands of a tandem mill is not possible, a mathematically determined correction value for the rolling force of the respective following rolling stand is determined from the difference between predicted and measured rolling force of a rolling stand.
- Reversing stands require a hardness measurement before each stitch possible but costly and time consuming. However, it is sufficient, the hardness only in the inlet from the first stitch to Measure and deviations of the derived rolling force as Correction value to be considered in the second stitch. Should the measured rolling force is still too large deviations From the precalculated exhibit is another Hardness measurement before the third stitch makes sense.
- the hardness measurement is dynamic and preferably at several Make the material to be deformed is the required measuring time minimized and the measurement result averaged and therefore representative of the respective batch.
- the known EQUOTIP measuring method is used used.
- the hardness measurement is preferred during process-related downtimes of Cold deformation systems takes place. This does not occur Delay in the production process. So can the hardness measurement in tandem roads preferably between uncoiler and Welding machine done during welding and thus the Take advantage of welding time. Accordingly, the hardness is measured in Reversier Nos.
- each k f ( ⁇ ) value is multiplied by the factor k (H 0 , H 1 , R m0 ).
- the inventive method is not only suitable for Cold rolling mills but also for all types of Molding scaffolding, stretch bender, straightening machines (band and Sheet metal), as well as 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)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Hydroponics (AREA)
- Control Of Heat Treatment Processes (AREA)
- Forging (AREA)
- Heat Treatment Of Articles (AREA)
Description
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. Da eine weitere Adaption der Verfestigungskurve durch Härtemessung zwischen den Walzgerüsten einer Tandemstraße nicht möglich ist, wird aus der Differenz zwischen vorausberechneter und gemessener Walzkraft eines Walzgerüstes ein nur rechnerisch ermittelter Korrekturwert für die Walzkraft des jeweils folgenden Walzgerüstes ermittelt.
- Fig. 1
- eine Verfestigungskurve mit additiver Korrektur,
- Fig. 2
- eine Verfestigungskurve mit multiplikativer Korrektur.
- kf0 (0) =
- Anfangswert der Standardverfestigungskurve bei ε=0,
- H0 =
- Standardhärtewert
- H1 =
- gemessener Härtewert,
- Rm0 =
- Standardzugfestigkeit.
Claims (10)
- Verfahren zum Voreinstellen von Kaltverformungsanlagen, wie Kaltwalzstra-ßen, 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 zur Stichplanauslegung 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, dass 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 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 der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Härtemessung dynamisch erfolgt, vorzugsweise nach dem EQUOTIP-Messverfahren. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Härtemessung an mehreren Stellen des zu verformenden Materials erfolgt. - Verfahren nach einem 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 der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass die Härtemessung vorzugsweise während verfahrensbedingter Stillstandszeiten der Kaltverfestigungsanlage erfolgt. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass die Härtemessung bei Tandemstraßen vorzugsweise zwischen Abhaspel und Schweißmaschine während des Schweißens erfolgt. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass die Härtemessung bei Reversierstraßen vorzugsweise im Bereich von deren Dickenmessgeräte während der Eichung 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 EP0972580A2 (de) | 2000-01-19 |
EP0972580A3 EP0972580A3 (de) | 2002-12-11 |
EP0972580B1 true 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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010112196A1 (de) | 2009-04-02 | 2010-10-07 | Sms Siemag Ag | Walzanlage zum kontinuierlichen walzen von bandförmigem walzgut |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (9)
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 |
AT374705B (de) * | 1982-09-07 | 1984-05-25 | Voest Alpine Ag | Vorrichtung zur anstellregelung eines kaltwalzgeruestes |
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 |
US5054302A (en) * | 1989-04-07 | 1991-10-08 | Kawasaki Steel Corporation | Hardness compensated thickness control method for wet skin-pass rolled sheet |
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 |
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 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
- 1999-06-02 AT AT99110703T patent/ATE301510T1/de active
- 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
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010112196A1 (de) | 2009-04-02 | 2010-10-07 | Sms Siemag Ag | Walzanlage zum kontinuierlichen walzen von bandförmigem walzgut |
DE102009060828A1 (de) | 2009-04-02 | 2010-10-14 | Sms Siemag Ag | Walzanlage zum kontinuierlichen Walzen von bandförmigem Walzgut |
Also Published As
Publication number | Publication date |
---|---|
EP0972580A2 (de) | 2000-01-19 |
EP0972580A3 (de) | 2002-12-11 |
ES2245061T3 (es) | 2005-12-16 |
CA2277550A1 (en) | 2000-01-14 |
US6161406A (en) | 2000-12-19 |
JP4390917B2 (ja) | 2009-12-24 |
DE19831480C1 (de) | 2000-01-13 |
CA2277550C (en) | 2007-09-25 |
ATE301510T1 (de) | 2005-08-15 |
DE59912379D1 (de) | 2005-09-15 |
JP2000042602A (ja) | 2000-02-15 |
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