EP1491267A2 - Procédé et dispositif de formage de bandes métalliques - Google Patents

Procédé et dispositif de formage de bandes métalliques Download PDF

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Publication number
EP1491267A2
EP1491267A2 EP04014633A EP04014633A EP1491267A2 EP 1491267 A2 EP1491267 A2 EP 1491267A2 EP 04014633 A EP04014633 A EP 04014633A EP 04014633 A EP04014633 A EP 04014633A EP 1491267 A2 EP1491267 A2 EP 1491267A2
Authority
EP
European Patent Office
Prior art keywords
forming
liquid
force
strip
rolling
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Withdrawn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
EP04014633A
Other languages
German (de)
English (en)
Other versions
EP1491267A3 (fr
Inventor
Christoph Lackinger
Niels Lohmeyer
Martin Dr. Raulf
Andy Rohe
Günther Katzur
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Stahl AG
ThyssenKrupp Steel 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 ThyssenKrupp Stahl AG, ThyssenKrupp Steel AG filed Critical ThyssenKrupp Stahl AG
Publication of EP1491267A2 publication Critical patent/EP1491267A2/fr
Publication of EP1491267A3 publication Critical patent/EP1491267A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the invention relates to a method and a device for forming metallic strips, in which a liquid is applied to at least one surface of one of the strips, which influences the forming force applied in each case.
  • the invention proposes to apply a liquid to at least one of the surface of the strip, which consists of at least, when metal strips are formed, in which the respective strip to be shaped is subjected to a forming force a forming force increasing and at least one forming force reducing component is mixed, the proportions of the forming force reducing and the forming force-increasing component depending on the amount of the forming force to be set in each case in a range from 0% to 100%.
  • a device for forming metallic strips which is equipped with a forming device, with a nozzle device for applying a liquid to at least one surface of the strip to be rolled, and with a liquid supply the nozzle device is supplied with liquid and comprises a mixing device which mixes the liquid from at least one component which increases the rolling force and at least one component which reduces the rolling force as a function of a control signal which a control device emits taking into account the forming force to be set in each case.
  • the invention is based on the idea of wetting the metal strips to be processed with a liquid, the composition of which is varied in such a way that a forming force which is optimally matched to the respective application is effective.
  • the liquid applied to the band is composed of at least two components, one of which leads to a reduction in the forming force acting on the band in a manner known per se, while the other component leads to an increase in this forming force.
  • the proportion of the two components is set in such a way that, based on a specific forming force set on the respective forming device, the optimum forming force is maintained over the course of the roll becomes.
  • the components of the liquid can be mixed in such a way that their effect is canceled.
  • the liquid applied to the strip being processed then only protects the surface of the strip against damage. If, on the other hand, the forming force is to be reduced, the proportion of the component which increases the forming force is reduced in favor of the component which reduces the forming force, while the proportions are weighted in reverse in order to increase the forming force.
  • the mixture of the components of the liquid applied to the strip surface can be changed during operation, for example to compensate for irregularities in the processed material or wear of the equipment used for the forming.
  • the invention has a particularly favorable effect when metal strips which are made of different materials are successively formed on the same device.
  • the invention makes it possible to quickly adapt the device required for the forming operation used in each case to the particular characteristics of the material being processed, without extensive modification work being necessary.
  • the invention proves to be particularly favorable if the forming is carried out as rolling the strips in a roll stand and the liquid is applied in the region of the inlet of the roll gap of the roll stand in order to influence the rolling force acting as a forming force in the roll gap.
  • this application of the invention it is possible to transfer different surface roughness to the material to be rolled with the same work rolls by changing the composition of the liquid applied, or to achieve the same surface roughness with different properties of strips processed one after the other. This can be ensured in a simple manner by the adaptation, according to the invention, of the properties of the liquid applied to the surface of the strip being processed, which reduces or increases the rolling force, without the need to use rollers with differently ground surface shapes adapted to the strip being processed. It is also possible to compensate for the wear of the work rolls in use by correspondingly matching the proportions of the components of the liquid even if these rolls had already exceeded the wear limit in the conventional mode of operation.
  • the invention leads to longer roller service lives in the roll stands.
  • the effort required to generate the required surface roughness is minimized, since the surface roughness transferred to the strip being processed is determined according to the invention by changing the composition of the liquid applied to the strip. This makes it possible to reduce the number of different sets of rolls to be stored.
  • An embodiment of the invention which is particularly advantageous in practical use is characterized in that the proportions of the components of the liquid are varied as a function of at least one measurement variable, which characterizes the forming force that occurs during the forming process.
  • This measured variable can be, for example, the rolling force recorded in the roll gap of a rolling mill, the current surface roughness of a work roll or the respectively processed strip, the dimensional accuracy of the formed metal strip when it leaves a rolling stand, the degree of deformation, in particular the degree of skin pass, or the Acting tape run.
  • These measured variables can also be taken into account in combination with one another in order to increase the accuracy of the variation in the liquid composition.
  • Another practical embodiment of the invention is characterized in that liquid is applied divided into several sections across the width of the belt, the mixtures of the component reducing the forming force and the component increasing the forming force of the liquid applied in each case differing from section to section.
  • the supply device 6 comprises a second control device 8, which is connected to the first control device 4 via signal lines 9, a first tank 10, in which a rolling force-increasing component W + a liquid F to be applied to the steel strip 2 to be processed is contained, a second tank 11 , in which a rolling force reducing component W- of the liquid F to be applied is contained, and a mixing device 12 which mixes the liquid F from the components W +, W- contained in the tanks 10, 11 and feeds it into the supply line 7 under pressure.
  • the nozzle device 5 has in the conveying direction R of the steel strip 2 in front of the roll gap 13 of the roll stand 3 arranged nozzle strips 5a, 5b, which extend across the width of the steel strip 2.
  • One nozzle strip 5a is mounted above the steel strip 2, while the other nozzle strip 5b is positioned below the steel strip 2.
  • the nozzles of both nozzle strips 5a, 5b are aligned in such a way that the liquid jet F they emit on the upper and lower surfaces 2a and 2b of the steel strip 2 is directed into the inlet area of the roll gap 13.
  • the roll stand 3 is brought into a certain position in which its work rolls apply a certain rolling force corresponding to a desired value to the steel strip 2, taking into account the influences of the liquid F applied to the steel strip 2.
  • the proportions of the components W +, W- of the liquid F are generated by the mixing device 12 at the same time mixed in such a way that the setpoint of the rolling force is reliably maintained, taking into account the position of the work rolls of the roll stand 3.
  • the first control device 4 uses suitable sensors 14, 15 in a manner known per se, for example to detect the rolling force effective in the roll gap 13 or the surface condition of the work rolls of the roll stand 3 Acting rolling force also falls below the rolling force setpoint, taking into account a tolerance range, the first control device 4 outputs a control signal via the signal line 9 to the second control device 8, which, depending on the local conditions, can form a structural unit with the control device 4, in that both control devices 4,8 are shown together in a computer-controlled central control device of the device 1, not shown here.
  • the control device 8 causes the mixing device 12 to reduce the proportion of the component W- reducing the rolling force in the liquid F in favor of the component W + increasing the rolling force.
  • the liquid applied to the upper and lower surfaces 2a, 2b of the steel strip 2 leads to an increase in the rolling force effectively acting on the steel strip 2 in the roll gap 13 when the working rolls of the roll stand 3 remain unchanged.
  • the proportion of the rolling force-increasing component W + of the liquid F is reduced and that of the rolling force-reducing component W- is increased if the rolling force is determined by the sensors 14, 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Coating Apparatus (AREA)
EP04014633A 2003-06-23 2004-06-22 Procédé et dispositif de formage de bandes métalliques Withdrawn EP1491267A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003128291 DE10328291B3 (de) 2003-06-23 2003-06-23 Verfahren und Vorrichtung zum Umformen von metallischen Bändern
DE10328291 2003-06-23

Publications (2)

Publication Number Publication Date
EP1491267A2 true EP1491267A2 (fr) 2004-12-29
EP1491267A3 EP1491267A3 (fr) 2005-12-28

Family

ID=33394956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04014633A Withdrawn EP1491267A3 (fr) 2003-06-23 2004-06-22 Procédé et dispositif de formage de bandes métalliques

Country Status (2)

Country Link
EP (1) EP1491267A3 (fr)
DE (1) DE10328291B3 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD89596A (fr) * 1900-01-01
US3150548A (en) * 1961-06-26 1964-09-29 United States Steel Corp Method and apparatus for controlling the thickness of rolled strip
JPS5289553A (en) * 1976-01-22 1977-07-27 Kawasaki Steel Co Method of controlling rolling load in rolling machine
EP0367967A2 (fr) * 1988-10-18 1990-05-16 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour refroidir et lubrifier des cylindres et des matières à laminer pendant laminage à froid
JPH08155509A (ja) * 1994-11-30 1996-06-18 Kawasaki Steel Corp 金属ストリップのスキンパス圧延機におけるスキンパス液の供給方法
DE19744503A1 (de) * 1997-10-09 1999-04-15 Schloemann Siemag Ag Vorrichtung und Verfahren zur Beeinflussung der Reibungsverhältnisse zwischen einer oberen und einer unteren Walze eines Walzgerüstes
JPH11156410A (ja) * 1997-11-28 1999-06-15 Kawasaki Steel Corp 熱間油潤滑圧延方法
JP2000280011A (ja) * 1999-03-31 2000-10-10 Kawasaki Steel Corp 熱延薄鋼帯の平坦度制御方法および装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917561C1 (de) * 1999-04-19 2000-11-30 Sundwig Gmbh Bandbehandlungslinie für Metallbänder, insbesondere für hochfeste Edelstahlbänder

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD89596A (fr) * 1900-01-01
US3150548A (en) * 1961-06-26 1964-09-29 United States Steel Corp Method and apparatus for controlling the thickness of rolled strip
JPS5289553A (en) * 1976-01-22 1977-07-27 Kawasaki Steel Co Method of controlling rolling load in rolling machine
EP0367967A2 (fr) * 1988-10-18 1990-05-16 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour refroidir et lubrifier des cylindres et des matières à laminer pendant laminage à froid
JPH08155509A (ja) * 1994-11-30 1996-06-18 Kawasaki Steel Corp 金属ストリップのスキンパス圧延機におけるスキンパス液の供給方法
DE19744503A1 (de) * 1997-10-09 1999-04-15 Schloemann Siemag Ag Vorrichtung und Verfahren zur Beeinflussung der Reibungsverhältnisse zwischen einer oberen und einer unteren Walze eines Walzgerüstes
JPH11156410A (ja) * 1997-11-28 1999-06-15 Kawasaki Steel Corp 熱間油潤滑圧延方法
JP2000280011A (ja) * 1999-03-31 2000-10-10 Kawasaki Steel Corp 熱延薄鋼帯の平坦度制御方法および装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1996, Nr. 10, 31. Oktober 1996 (1996-10-31) -& JP 08 155509 A (KAWASAKI STEEL CORP), 18. Juni 1996 (1996-06-18) *
PATENT ABSTRACTS OF JAPAN Bd. 1999, Nr. 11, 30. September 1999 (1999-09-30) -& JP 11 156410 A (KAWASAKI STEEL CORP), 15. Juni 1999 (1999-06-15) *
PATENT ABSTRACTS OF JAPAN Bd. 2000, Nr. 13, 5. Februar 2001 (2001-02-05) -& JP 2000 280011 A (KAWASAKI STEEL CORP), 10. Oktober 2000 (2000-10-10) *

Also Published As

Publication number Publication date
DE10328291B3 (de) 2005-02-24
EP1491267A3 (fr) 2005-12-28

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