EP1796858A1 - Dispositif pour l'etirement continu par traction d'une bande metallique et procede pour faire fonctionner un tel dispositif - Google Patents

Dispositif pour l'etirement continu par traction d'une bande metallique et procede pour faire fonctionner un tel dispositif

Info

Publication number
EP1796858A1
EP1796858A1 EP05793007A EP05793007A EP1796858A1 EP 1796858 A1 EP1796858 A1 EP 1796858A1 EP 05793007 A EP05793007 A EP 05793007A EP 05793007 A EP05793007 A EP 05793007A EP 1796858 A1 EP1796858 A1 EP 1796858A1
Authority
EP
European Patent Office
Prior art keywords
roller
diameter
metal strip
roll
rollers
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
EP05793007A
Other languages
German (de)
English (en)
Other versions
EP1796858B1 (fr
EP1796858B2 (fr
Inventor
Andreas Gramer
Hans-Georg Hartung
Holger Behrens
Jan Christoph HÄUSLER
Fritz Luckmann
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35355732&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1796858(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Demag AG filed Critical SMS Demag AG
Priority to PL05793007T priority Critical patent/PL1796858T3/pl
Publication of EP1796858A1 publication Critical patent/EP1796858A1/fr
Publication of EP1796858B1 publication Critical patent/EP1796858B1/fr
Application granted granted Critical
Publication of EP1796858B2 publication Critical patent/EP1796858B2/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling

Definitions

  • the invention relates to a device for continuously drawing a metal strip, which has at least three S-roller units in the belt conveying direction, each having at least two rollers, wherein the rollers are positioned so that they are umschl the metal belt over a circumferential roll angle of more than 180 °. Furthermore, the invention relates to a method for operating such a device.
  • a device for drawing a metal strip and an associated method for its operation is known from EP 0 393 301 B2.
  • the metal strip to be stretched passes through five roller units arranged one behind the other, which loop around the metal strand in an S shape and can build up a tensile stress in the metal strip by correspondingly driving the rollers of the roller units.
  • a plastic elongation in the metal strip is completed, which leads to a reduction of the strip thickness and bandwidth.
  • a tensile stress is built up in a first tensile region in the metal strip, which reaches almost to the yield strength ( ⁇ p o, 2) or even beyond.
  • the belt tension remains just below the yield strength, forms in conjunction with the finite bending radius to the role of the S-roll unit from a Vorreckzone, in which the bandwidth is elastically reduced.
  • the actual stretching is produced in a second tensile region extending downstream in the conveying direction of the metal strip.
  • the strip tension for the elastic deformation of the strip is applied between a brake roller set and a pull roll set.
  • the strip tension for the plastic deformation of the strip is generated in an intermediate pair of tension rollers.
  • EP 0 936 954 B1 discloses a drafting system in which the two stretching zones are formed between a brake roller set and a centrally arranged stretching roller and between this stretching roller and a downstream tension roller set.
  • DE 36 36 707 C2 discloses a draw-stretching installation for a metal strip in which the flatness-improving effect is achieved by stretching the strip by means of a bending in the direction of bending under tension around small rolls.
  • the invention is therefore an object of the invention to provide a Switzerlandreckvortechnische of the aforementioned type and an associated Switzerlandreckvon, with or with which the draw-stretching can be further improved.
  • the solution of this object by the invention is device according to characterized in that at least the second belt in the conveyor direction S-roller unit of the draw-stretching device has two rollers whose diameter is of different sizes.
  • the roll of the second S-roll unit following in the belt conveying direction preferably has the larger diameter.
  • the device has five S-roll units each having at least two rollers.
  • the fourth in the belt conveying direction S-roller unit may have two rollers whose diameter is un ⁇ different sized. Further, in this case, the subsequent in the band conveying direction role of the fourth S-roll unit have the smaller diameter.
  • the larger diameter roll of the S-roll unit has at least 1.25 times the diameter of the smaller diameter roll.
  • the larger diameter roll of the S-roll unit has at least 1.5 times the diameter, preferably twice the diameter, of the smaller diameter roll.
  • the third roller unit has two rollers auf ⁇ having a diameter corresponding to the diameter of the larger roller of the second and fourth roller unit.
  • the first and the fifth roller unit can each have two rollers which have a diameter which corresponds to the diameter of the smaller roller of the second or fourth roller unit.
  • the second S-roll unit in the belt conveying direction can be equipped with means for measuring the tensile force applied by the rollers to the metal strip.
  • the fourth in the belt conveying direction S-roller unit can be equipped with means for measuring the force applied by the rollers on the metal strip tensile force.
  • the method according to the invention for operating the draw-stretching device is characterized in that a tensile stress which is between 96% and 100% of the yield strength of the material of the metal strip is established in the second S-roll unit in the metal belt in the belt conveying direction.
  • the tensile stress is preferably between 96% and 99.8%, ie just below 100%, of the yield strength of the material.
  • a tensile stress is built up which is more than 100% of the yield strength of the material of the metal strip.
  • a tensile stress is built up which is between 96% and 100% of the yield strength of the material of the metal strip or again just below (to 99.8% of the yield strength).
  • a tensile stress is built up which is more than 100% of the yield strength of the material of the metal band, in which case the metal band is further plastically deformed.
  • FIG. 1 An embodiment of the invention is shown.
  • the single figure only very schematically shows a device for drawing a metal strip in the side view, wherein essentially only the rollers used are shown.
  • a metal band 2 is processed, which may be a thin metal band.
  • the metal strip may be made of steel, stainless steel or non-ferrous metal. Typical tape thicknesses can be between 0.05 and 0.5 mm.
  • the device 1 for drawing has five successively arranged S-roll units 3, 4, 5, 6 and 7.
  • Each S-roll unit 3, 4, 5, 6, 7 has two rollers 8, 9, 10, 11, 12, 13, 14, 15, 16 and 17, wherein the rollers are arranged so that the metal strand 2 over a Roll circumference angle ⁇ of at least 180 ° around the rolls.
  • the roller circumferential angle ⁇ is entered as an example; it is about 210 °.
  • the rollers are drivable, so that a strip tension can be applied to the metal strand 2.
  • the metal strip 2 passes through the device 1 in the belt conveying direction R at a conveying speed v.
  • the strip tension is increased on the intake side by the surrounding system train level above the first S-roller unit 3.
  • Behind the S-roller unit 3 means 18 for measuring the tensile force in the metal strip 2 are arranged.
  • the tensile force behind the S-roller unit 3 must be known in order to be able to define the train level for the further controlled train construction and then to be able to control or regulate it.
  • the adjoining S-roller unit 4 has the two rollers 10 and 11, which have significantly different diameters, namely the diameters Di 0 and Du.
  • the roll diameter D 10 can be about 600 mm - values between 400 mm and 800 mm are typical - while the diameter Du can be 1,200 mm, whereby values between 1,000 mm and 1,400 mm are typical.
  • the first roller 10 of the S-roller unit 4 has the same diameter as the rollers 8 and 9 of the first S-roller unit 3.
  • the second S-roll unit 4 has means 19 for measuring the tensile force in the metal strip 2 (torque measurement).
  • the strip tension which is set between the rollers 10 and 11 by corresponding actuation of the drives (not shown) of the rollers 10, 11, is at such a level that computationally no edge fiber plasticization of the strip to be stretched occurs.
  • the following roll 11 of the S-roll unit 4 has the considerably larger diameter Du, this roll 11 builds the strip tension to a level of more than 96% to just below 100% of the yield stress. Since the Rollen ⁇ radius is finite, an edge fiber strain by bending the tape can not be excluded, but to reduce by the dimensioning of the diameter to an acceptable level.
  • the S-roll unit 6 is again designed with a large-diameter roll 14 and a subsequent small roll 15, wherein this roll unit 6 forms a mirror image of the S-roll unit 4 in front of the take-up roll pair 12, 13.
  • the strip tension means 20 for measuring the tensile force are also provided in the S-roller unit 6 again.
  • a strip tension level is set at which plasticization of the metal strip 2 upon emergence onto the then following small roll 15 is prevented.
  • the small roller 15 sets the Bandzugni ⁇ level to the level required for the following Bandzugress level.
  • the tape tension measurement is carried out by means 23 for measuring the tensile force.
  • the last, fifth S-roll unit 7 again corresponds in mirror image to the first S-roll unit 3 and has rollers 16, 17 which have the same small roller diameter as the rollers 10 or 15. This S-roll unit 7 lowers the strip tension to the desired or required for the subsequent part of the system from level.
  • measuring means 21 On the fourth S-roll unit 6 measuring means 21 are arranged, which detect the winning ⁇ speed v of the metal strip 2.
  • the measuring means 21 conduct the measured value to a control or regulating device 22 on which - which is shown only very schematically - on the drives of the S-roller units 3, 4, 5, 6, 7 acts so that a desired speed is achieved.
  • the roller 14, on which the conveyor speed or belt speed is measured in the present case, thus functions as a "speed master" with a downstream, speed-controlled main drive of the rollers or of the traction roller sets.
  • the strip tension is therefore held in front of the Werreckrollencru 12, 13 at a level between 96% to just below 100% of the yield limit; in zugreckrollencru 12, 13 of the necessary for the achievement of the set Reck- degree remaining portion of the strip tension is applied.
  • Behind the Buchreckrollencru 12, 13 of the strip tension is either lowered again to 96% to just below 100% of the yield limit train or the strip tension is increased to achieve a complementary further degree of stretching.
  • the last roller 11 of the S-roller unit 4 (brake roller guide) in front of the Wegreck ⁇ roller pair 12, 13 and the first roller 14 of the subsequent S-roller unit 6 (Zugrollengang) have the same diameter as the two rollers 12, 13 of the S-roller unit fifth As explained, this diameter is substantially greater than the diameter of the remaining rollers 8, 9, 10, 15, 16 and 17, which all have the same diameter.
  • the metal strip 2 between the two rollers 10 and 11 has a tension of about 55 to 70% of the yield strength of the material.
  • a tensile stress prevails between 96% to just below 100% of the yield strength; this rich is the Vorreckzone.
  • the first main stretching zone is between the rolls 12 and 13.
  • the second main stretching zone is the section between the rolls 13 and 14, where again usually a tensile stress of between 96% to just below 100% of the yield strength.
  • Between the rollers 14 and 15 is again - mirror image - a tensile stress of about 55 to 70% of the yield strength of the material before.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Coating With Molten Metal (AREA)
  • Metal Rolling (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Replacement Of Web Rolls (AREA)
  • Treatment Of Fiber Materials (AREA)
EP05793007.5A 2004-10-06 2005-09-19 Dispositif pour l'etirement continu par traction d'une bande metallique Not-in-force EP1796858B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05793007T PL1796858T3 (pl) 2004-10-06 2005-09-19 Urządzenie do ciągłego wydłużania przez rozciąganie taśmy metalowej i sposób eksploatacji takiego urządzenia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004048658A DE102004048658A1 (de) 2004-10-06 2004-10-06 Vorrichtung zum kontinuierlichen Zugrecken eines Metallbandes und Verfahren zum Betreiben einer solchen Vorrichtung
PCT/EP2005/010078 WO2006037456A1 (fr) 2004-10-06 2005-09-19 Dispositif pour l'etirement continu par traction d'une bande metallique et procede pour faire fonctionner un tel dispositif

Publications (3)

Publication Number Publication Date
EP1796858A1 true EP1796858A1 (fr) 2007-06-20
EP1796858B1 EP1796858B1 (fr) 2008-07-23
EP1796858B2 EP1796858B2 (fr) 2014-11-19

Family

ID=35355732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05793007.5A Not-in-force EP1796858B2 (fr) 2004-10-06 2005-09-19 Dispositif pour l'etirement continu par traction d'une bande metallique

Country Status (17)

Country Link
US (1) US20080047314A1 (fr)
EP (1) EP1796858B2 (fr)
JP (1) JP2008515637A (fr)
KR (1) KR20070051830A (fr)
CN (1) CN100531949C (fr)
AT (1) ATE401975T1 (fr)
AU (1) AU2005291607A1 (fr)
BR (1) BRPI0514028A (fr)
CA (1) CA2574710A1 (fr)
DE (2) DE102004048658A1 (fr)
ES (1) ES2308552T3 (fr)
MX (1) MX2007004092A (fr)
MY (1) MY139051A (fr)
PL (1) PL1796858T3 (fr)
RU (1) RU2344894C2 (fr)
TW (1) TWI332867B (fr)
WO (1) WO2006037456A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008045340A1 (de) * 2008-09-01 2010-03-04 Siemens Aktiengesellschaft Betriebsverfahren für einen Streckrichter mit überlagerter Elongationsregelung und unterlagerter Zugregelung
US9221088B2 (en) * 2009-04-21 2015-12-29 Fairmont Technologies, Llc Stretch roll forming
FR3027920B1 (fr) * 2014-10-29 2019-03-29 Fives Stein Procede d'orientation de grains de tole d'acier, dispositif s'y rapportant, et installation mettant en oeuvre ce procede ou ce dispositif

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2118051C3 (de) * 1971-04-14 1975-10-23 Ungerer Geb. Dollinger, Irma, 7530 Pforzheim Streckrichtanlage
US3798951A (en) * 1972-10-03 1974-03-26 Herr Voss Corp Torque distribution system
JPS6120622A (ja) * 1984-07-10 1986-01-29 Mitsubishi Heavy Ind Ltd テンシヨンレベラ制御方法
DE3636707A1 (de) † 1986-10-28 1988-05-19 Bwg Bergwerk Walzwerk Vorrichtung zum streckbiegerichten von metallbaendern
DE3912676A1 (de) * 1989-04-18 1990-10-25 Bwg Bergwerk Walzwerk Verfahren und vorrichtung zum kontinuierlichen zugrecken von duennen baendern, insbesondere von metallischen baendern
US5497817A (en) * 1992-05-25 1996-03-12 Nippon Steel Corporation Method for continuously annealing steel strip
DE19645599A1 (de) † 1996-11-06 1998-05-07 Kampf Gmbh & Co Maschf Vorrichtung zum Zugrecken von dünnen Metallbändern
DE10114883C1 (de) † 2001-03-26 2002-10-31 Bwg Bergwerk Walzwerk Zugreckanlage für Stahl- und Metallbänder
DE10323811A1 (de) † 2003-05-23 2005-01-13 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zum kontinuierlichen Zugrecken von metallischen Bändern und Zugreckanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006037456A1 *

Also Published As

Publication number Publication date
JP2008515637A (ja) 2008-05-15
DE502005004833D1 (de) 2008-09-04
EP1796858B1 (fr) 2008-07-23
MX2007004092A (es) 2007-08-07
RU2007103836A (ru) 2007-08-10
PL1796858T3 (pl) 2009-01-30
BRPI0514028A (pt) 2008-05-27
AU2005291607A1 (en) 2006-04-13
WO2006037456A1 (fr) 2006-04-13
CN100531949C (zh) 2009-08-26
TW200621395A (en) 2006-07-01
CN101018625A (zh) 2007-08-15
US20080047314A1 (en) 2008-02-28
MY139051A (en) 2009-08-28
KR20070051830A (ko) 2007-05-18
DE102004048658A1 (de) 2006-04-20
RU2344894C2 (ru) 2009-01-27
EP1796858B2 (fr) 2014-11-19
TWI332867B (en) 2010-11-11
CA2574710A1 (fr) 2006-04-13
ES2308552T3 (es) 2008-12-01
ATE401975T1 (de) 2008-08-15

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