EP1479460B1 - Method and apparatus for continuous straightening of metal strips - Google Patents
Method and apparatus for continuous straightening of metal strips Download PDFInfo
- Publication number
- EP1479460B1 EP1479460B1 EP04002761A EP04002761A EP1479460B1 EP 1479460 B1 EP1479460 B1 EP 1479460B1 EP 04002761 A EP04002761 A EP 04002761A EP 04002761 A EP04002761 A EP 04002761A EP 1479460 B1 EP1479460 B1 EP 1479460B1
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- Prior art keywords
- stretching
- tension
- strip
- zones
- roll
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 7
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000001595 flow curve Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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 method for the continuous stretching of metallic bands, in particular of bands with a band thickness of 0.05 mm to 1.5 mm, after which the respective band passes through a brake roller set and a Switzerlandrollensatz and between two sets of rollers in the course of its stretching in the plastic range is subjected to a stretching process (see, for example, EP-A-1 254 728), and a draw-stretching plant for carrying out this process.
- a stretch in the plastic range is often referred to as elastic-plastic stretching, because when exceeding the yield strength of the strip material concerned a residual elasticity remains in the strip material.
- the invention is based on the technical problem of specifying a method and a drafting system for continuous drawing of metallic strips of the embodiment described above, with which optimized flatness results can be achieved.
- the invention teaches a method and Anlagenreckstrom with the features of claims 1 and 9.
- the strip tensile stress in the central stretching zone is ⁇ 80% may preferably be ⁇ 50% of the yield strength of the strip material. In this context, it can be provided that the strip passes through the middle stretching zone with a residence time of ⁇ 1 second.
- the invention preferably teaches that the strip passes through five stretching zones in the two upstream stretching zones and in the two downstream stretching zones in the plastic region and in the middle stretching zone is stretched in the elastic region or the band tension is in the elastic range.
- the method according to the invention results in a particularly compact and space-saving design for the continuous stretching installation required for carrying out the method.
- the invention preferably provides that the strip is wound and unwound after passing through the inlet-side stretching zone or stretching zones. By this intermediate winding surprisingly creep effects are compensated in the later coil.
- the drafting equipment which is particularly suitable for carrying out the claimed method is characterized by simple and functional design.
- the invention teaches that preferably at least one respective draw-stretching roller of the draw-stretching roller pairs is designed as a concave / convex draw-stretching roller, each having a differently adjustable geometry.
- the roller shell between a convex outer curvature and a concave. Adjustable inside curvature in order to reduce in this way in the course of leveling of metallic ribbons edge shafts and center bowls to a considerable extent or eliminate completely (see DE 42 30 243 C1). In that regard, moreover, an improved adaptation to different bandwidths is achieved.
- the invention preferably provides that the strip is in each of the individual stretching zones acted upon by one or more linear motors.
- the use of linear motors requires the use of metal strips made of non-ferromagnetic material, for example bundle metal, and permits a sensitive and targeted adjustment of the stress distribution (cf DE 197 19 994 A1).
- a Buchreckstrom for continuous tensile stretching of thin metal bands 1 of particular Steel, stainless steel, aluminum or the like shown with a band thickness between 0.05 mm and 1.5 mm.
- This Buchreckstrom has in its basic structure a brake roller 2 and a Werrollensatz 3.
- Buchreckrollenprese 4, 5 and 6, 7 are arranged according to the embodiment, wherein an inlet side stretch zone I between the two Werreckrollen 4, 5 of the inlet side Werreckrollenpases, an outlet side stretch zone III between the two Werreckrollen 6, 7th the outlet side Buchreckrollenpackes and a middle stretching zone II between the two Switzerlandreckrollenformen 4, 5 and 6, 7 is formed.
- the bracing of brake roller set, Werckreckrollencruen and Werrollensatz can be done in a known manner.
- At least one respective draw-out roller 4 or 6 of the draw-bar roller pairs 4, 5 and 6, 7 can be designed as a concave / convex draw-bar roller, each having a differently adjustable geometry.
- the band 1 in the individual stretching zones I, II, III can each be acted upon by one or more linear motors, which is not shown.
- the band 1 passes between the brake roller set 2 and the Switzerlandrollensatz three stretching zones I, II, III and is stretched in these stretching zones in the plastic range and / or elastic range.
- the band is stretched in the inlet-side stretching zone I and in the outlet-side stretching zone III in the plastic region and in the middle stretching zone II between these two zones only a band tensile stress lying in the elastic region subjected. This results in the rounding 8 of the flow curve 9 shown in the stress-strain diagram when the yield strength of the strip material in question is exceeded and consequently in the transition region from the elastic region into the plastic region.
- the flow curve is a three-time stretch I ⁇ II ⁇ III and with intermediate relief in the middle stretch zone I ⁇ II ' ⁇ III' and consequently with only one elastic stretching in the middle stretching zone II.
- the dashed lines rounding 8 of the flow curve 9 is the more pronounced, the longer the tape in question 1 is subjected in the middle stretching zone II lying in the elastic range Bandzugbeginn.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Metal Rolling (AREA)
- Metal Extraction Processes (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum kontinuierlichen Zugrecken von metallischen Bändern, insbesondere von Bändern mit einer Banddicke von 0,05 mm bis 1,5 mm, wonach das jeweilige Band einen Bremsrollensatz und einen Zugrollensatz durchläuft und zwischen beiden Rollensätzen im Zuge seiner Reckung im plastischen Bereich einem Streckzug unterworfen wird (siehe z.B. EP-A-1 254 728), sowie eine Zugreckanlage zur Durchführung dieses Verfahrens. Eine Reckung im plastischen Bereich wird häufig auch als elastisch-plastische Reckung bezeichnet, weil beim Überschreiten der Streckgrenze des betreffenden Bandmaterials eine Restelastizität in dem Bandmaterial verbleibt.The invention relates to a method for the continuous stretching of metallic bands, in particular of bands with a band thickness of 0.05 mm to 1.5 mm, after which the respective band passes through a brake roller set and a Zugrollensatz and between two sets of rollers in the course of its stretching in the plastic range is subjected to a stretching process (see, for example, EP-A-1 254 728), and a draw-stretching plant for carrying out this process. A stretch in the plastic range is often referred to as elastic-plastic stretching, because when exceeding the yield strength of the strip material concerned a residual elasticity remains in the strip material.
Es ist bekannt, zum Planieren von dünnen metallischen Bändern Zugreckanlagen mit einem Bremsrollensatz und einem Zugrollensatz einzusetzen. Beide Rollensätze weisen regelmäßig zwei oder mehr Rollen auf, die mit gestaffelten Drehmomenten und folglich Streckzügen beaufschlagt werden, so dass schließlich der für die gewünschte Reckung erforderliche Streckzug zwischen dem Bremsrollensatz und dem Zugrollensatz erreicht wird. Im Zuge des Reckvorganges wird die plastische Längung des betreffenden Bandes aus der Reduzierung der Banddicke und Bandbreite bezogen. Dabei treten Längsspannungen und daraus resultierende Querspannungen auf, welche vom Bandmaterial abhängig sind. Daraus können in der Bandmitte größere Längsformänderungen resultieren, die einerseits zu mehr oder minder starken Mittenschüsseln führen, andererseits zu ungleichmäßig über die Bandbreite verteilte Restspannungen. Um die bei der plastischen Reckung auftretenden Verformungen auf ein Minimum zu reduzieren und folglich die Bildung von Mittenschüsseln sowie ungleichmäßig verteilte Restspannungen nahezu zu eliminieren, kennt man ein Verfahren der eingangs beschriebenen Ausführungsform, wonach das Band in einem zwischen dem Bremsrollensatz und dem Zugrollensatz zwischengeschalteten Zugreckrollenpaar dem zu seiner Reckung im plastischen Bereich erforderlichen Streckzug unterworfen wird (vgl. DE 39 12 676 C2).It is known to use leveling lines with a brake roller set and a Zugrollensatz for leveling thin metallic bands. Both sets of rollers regularly have two or more rollers, which are subjected to staggered torques and consequently stretch trains, so that finally the stretching required for the desired stretching between the brake-roller set and the train-roller set is achieved. As part of the stretching process, the plastic elongation of the tape in question is obtained from the reduction of the strip thickness and bandwidth. In this case, longitudinal stresses and resulting transverse stresses occur, which depend on the strip material. This can result in larger longitudinal shape changes in the middle of the band, which on the one hand lead to more or less strong middle bowls, on the other hand unevenly distributed over the bandwidth residual stresses. To the occurring during the plastic stretching deformations on a To reduce minimum and thus almost eliminate the formation of middle bowls and unevenly distributed residual stresses, one knows a method of the embodiment described above, according to which the band is subjected in an intermediate between the brake roller set and the Zugrollensatz Zugreckrollenpaar the stretching required for its stretching in the plastic range (see DE 39 12 676 C2).
Ferner kennt man Zugreckanlagen für Stahl- und Metallbänder mit einem Bremsrollensatz und einem Zugrollensatz, bei denen zwei Reckzonen verwirklicht sind, um verbesserte Planheitsergebnisse zu erzielen. Dazu wird beispielsweise die Länge der ersten Reckzone und der zweiten Reckzone auf die jeweils maximale Bandbreite abgestimmt (vgl. DE 101 14 883 C1).Furthermore, there are known Zugreckanlagen for steel and metal belts with a brake roller and a Zugrollensatz in which two stretching zones are realized in order to achieve improved flatness results. For this purpose, for example, the length of the first stretching zone and the second stretching zone is matched to the respective maximum bandwidth (compare DE 101 14 883 C1).
Der Erfindung liegt das technische Problem zu Grunde, ein Verfahren und eine Zugreckanlage zum kontinuierlichen Zugrecken von metallischen Bändern der eingangs beschriebenen Ausführungsform anzugeben, mit dem sich optimierte Planheitsergebnisse erzielen lassen.The invention is based on the technical problem of specifying a method and a drafting system for continuous drawing of metallic strips of the embodiment described above, with which optimized flatness results can be achieved.
Zur Lösung dieses Problems lehrt die Erfindung ein Verfahren und eine Zugreckanlage mit den Merkmalen der Ansprüche 1 und 9. Durch die zumindest dritte und vorzugsweise folglich zusätzliche Reckzone wird überraschenderweise eine weitere Vergleichmäßigung der Längsspannungsverteilung und der daraus resultierenden Bandlängs- und -querformänderungen erreicht. Daraus resultieren optimale Richtergebnisse. Dabei kann das Band in allen Reckzonen im plastischen Bereich gereckt werden. Nach einer bevorzugten Ausführungsform der Erfindung ist jedoch vorgesehen, dass - bei Verwirklichung von drei Reckzonen - das Band in der einlaufseitigen Reckzone und in der auslaufseitigen Reckzone im plastischen Bereich gereckt wird und in der zwischen diesen Zonen befindlichen mittleren Reckzone lediglich einer im elastischen Bereich liegenden Bandzugspannung unterworfen wird. Daraus resultiert eine Abrundung der Fließkurve im Spannungs-Dehnungs-Schaubild beim Überschreiten der Streckgrenze zwischen dem elastischen und plastischen Bereich, weil eben das Band in der mittleren Reckzone eine Entlastung vom plastischen in den elastischen Bereich und eine Wiederbelastung von dem elastischen Bereich in den plastischen Bereich erfährt. Um diesen Effekt zu optimieren, kann die Bandzugspannung in der mittleren Reckzone bei ≤ 80 %, vorzugsweise ≤ 50 % der Streckgrenze des betreffenden Bandmaterials liegen. In diesem Zusammenhang kann vorgesehen sein, dass das Band die mittlere Reckzone mit einer Verweildauer von ≥ 1 Sekunde durchläuft.To solve this problem, the invention teaches a method and Zugreckanlage with the features of
Werden im Rahmen der Erfindung mehr als drei Reckzonen vorgesehen, beispielsweise fünf Reckzonen, so lehrt die Erfindung in bevorzugter Weise, dass das Band beim Durchlaufen von fünf Reckzonen in den beiden einlaufseitigen Reckzonen und in den beiden auslaufseitigen Reckzonen im plastischen Bereich und in der mittleren Reckzone im elastischen Bereich gereckt wird bzw. die Bandzuspannung im elastischen Bereich liegt. Durch das Zurückführen der Bandzugspannung auf den elastischen Bereich wird bei drei, fünf oder mehr Reckzonen praktisch die Verwirklichung von zwei getrennten Zugreckanlagen simuliert. Folglich resultiert aus dem erfindungsgemäßen Verfahren eine besonders kompakte und raumsparende Bauweise für die zur Durchführung des Verfahrens erforderliche Zügreckanlage. Ferner sieht die Erfindung vorzugsweise vor, dass das Band nach dem Durchlaufen der einlaufseitigen Reckzone oder Reckzonen aufgewickelt und abgewickelt wird. Durch dieses Zwischen-Aufwickeln werden überraschenderweise Kriecheffekte im späteren Coil kompensiert.If more than three stretching zones are provided in the context of the invention, for example five stretching zones, the invention preferably teaches that the strip passes through five stretching zones in the two upstream stretching zones and in the two downstream stretching zones in the plastic region and in the middle stretching zone is stretched in the elastic region or the band tension is in the elastic range. By returning the Band tensile stress on the elastic region is practically simulated in three, five or more stretching zones the realization of two separate drawstrings. Consequently, the method according to the invention results in a particularly compact and space-saving design for the continuous stretching installation required for carrying out the method. Furthermore, the invention preferably provides that the strip is wound and unwound after passing through the inlet-side stretching zone or stretching zones. By this intermediate winding surprisingly creep effects are compensated in the later coil.
Die Zugreckanlage, die zur Durchführung des beanspruchten Verfahrens besonders geeignet ist zeichnet sich durch einfache und funktionsgerechte Bauweise aus. Sind zwischen dem Bremsrollensatz und dem Zugrollensatz vier Zugreckrollenpaare angeordnet, dann befinden sich zwei Reckzonen jeweils zwischen den beiden Zugreckrollen der beiden einlaufseitigen Zugreckrollenpaare und zwei Reckzonen jeweils zwischen den beiden Zugreckrollen der beiden auslaufseitigen Zugreckrollenpaare, während sich die mittlere Reckzone zwischen dem letzten einlaufseitigen Zugreckrollenpaar und dem ersten auslaufseitigen Zugreckrollenpaar befindet. Weiter lehrt die Erfindung, dass vorzugsweise zumindest jeweils eine Zugreckrolle der Zugreckrollenpaare als eine konkave/konvexe Zugreckrolle mit jeweils unterschiedlich einstellbarer Geometrie ausgebildet ist. Bei derartigen Zugreckrollen ist der Rollenmantel zwischen einer konvexen Außenwölbung und einer konkaven. Innenwölbung einstellbar, um auch auf diesem Wege im Zuge des Planierens von metallischen Bändern Randwellen und Mittenschüsseln in erheblichem Maße zu verringern oder ganz zu eliminieren (vgl. DE 42 30 243 C1). Insoweit wird im Übrigen auch eine verbesserte Anpassung an unterschiedliche Bandbreiten erreicht. Endlich sieht die Erfindung vorzugsweise vor, dass das Band in den einzelnen Reckzonen jeweils von einem oder mehreren Linearmotoren beaufschlagt ist. Der Einsatz von Linearmotoren setzt den Einsatz von Metallbändern aus nichtferomagnetischem Material, zum Beispiel Bundmetall voraus und ermöglicht eine feinfühlige und gezielte Einstellung der Spannungsverteilung (vgl. DE 197 19 994 A1).The drafting equipment, which is particularly suitable for carrying out the claimed method is characterized by simple and functional design. Are four Zugreckrollenpaare arranged between the brake roller and the Zugrollensatz, then there are two stretching zones each between the two Zugreckrollen the two inlet side Zugreckrollenpaare and two stretching zones between the two Zugreckrollen the two outlet side Zugreckrollenpaare, while the middle stretching zone between the last inlet side Zugreckrollenpaar and the first outlet side Zugreckrollenpaar is located. Furthermore, the invention teaches that preferably at least one respective draw-stretching roller of the draw-stretching roller pairs is designed as a concave / convex draw-stretching roller, each having a differently adjustable geometry. In such Zugreckrollen the roller shell between a convex outer curvature and a concave. Adjustable inside curvature in order to reduce in this way in the course of leveling of metallic ribbons edge shafts and center bowls to a considerable extent or eliminate completely (see DE 42 30 243 C1). In that regard, moreover, an improved adaptation to different bandwidths is achieved. Finally, the invention preferably provides that the strip is in each of the individual stretching zones acted upon by one or more linear motors. The use of linear motors requires the use of metal strips made of non-ferromagnetic material, for example bundle metal, and permits a sensitive and targeted adjustment of the stress distribution (cf DE 197 19 994 A1).
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:
- Fig. 1
- eine Zugreckanlage mit drei Reckzonen in schematischer Seitenansicht und
- Fig. 2
- ein Spannungs-Dehnungs-Schaubild.
- Fig. 1
- a Zugreckanlage with three stretching zones in a schematic side view and
- Fig. 2
- a stress-strain diagram.
In den Figuren ist eine Zugreckanlage zum kontinuierlichen Zugrecken von dünnen Metallbändern 1 aus insbesondere Stahl, Edelstahl, Aluminium oder dergleichen mit einer Banddicke zwischen 0,05 mm und 1,5 mm dargestellt. Diese Zugreckanlage weist in ihrem grundsätzlichen Aufbau einen Bremsrollensatz 2 und einen Zugrollensatz 3 auf. Zwischen dem Bremsrollensatz 2 und dem Zugrollensatz 3 sind nach dem Ausführungsbeispiel zwei Zugreckrollenpaare 4, 5 und 6, 7 angeordnet, wobei eine einlaufseitige Reckzone I zwischen den beiden Zugreckrollen 4, 5 des einlaufseitigen Zugreckrollenpaares, eine auslaufseitige Reckzone III zwischen den beiden Zugreckrollen 6, 7 des auslaufseitigen Zugreckrollenpaares und eine mittlere Reckzone II zwischen den beiden Zugreckrollenpaaren 4, 5 und 6, 7 gebildet ist. Die Verspannung von Bremsrollensatz, Zugreckreckrollenpaaren und Zugrollensatz kann in bekannter Weise erfolgen. Zumindest jeweils eine Zugreckrolle 4 bzw. 6 der Zugreckrollenpaare 4, 5 und 6, 7 kann als eine konkave/konvexe Zugreckrolle mit jeweils unterschiedlich einstellbarer Geometrie ausgebildet sein. Außerdem kann das Band 1 in den einzelnen Reckzonen I, II, III jeweils von einem oder mehreren Linearmotoren beaufschlagt sein, was nicht gezeigt ist.In the figures, a Zugreckanlage for continuous tensile stretching of
Bei der dargestellten Zugreckanlage durchläuft das Band 1 zwischen dem Bremsrollensatz 2 und dem Zugrollensatz drei Reckzonen I, II, III und wird in diesen Reckzonen im plastischen Bereich und/oder elastischen Bereich gereckt. Nach einer Ausführungsform wird das Band in der einlaufseitigen Reckzone I und in der auslaufseitigen Reckzone III im plastischen Bereich gereckt und in der zwischen diesen beiden Zonen befindlichen mittleren Reckzone II lediglich einer im elastischen Bereich liegenden Bandzugspannung unterworfen. Daraus resultiert die in dem Spannungs-Dehnungs-Schaubild dargestellte Abrundung 8 der Fließkurve 9 beim Überschreiten der Streckgrenze des betreffenden Bandmaterials und folglich im Übergangsbereich von dem elastischen Bereich in den plastischen Bereich. Dabei ist zur Verdeutlichung einmal die Fließkurve für eine dreimal plastische Reckung
I → II → III
und mit einer Zwischenentlastung in der mittleren Reckzone
I → II' → III'
und folglich mit lediglich einer elastischen Reckung in der mittleren Reckzone II dargestellt. Die gestrichelt dargestellte Abrundung 8 der Fließkurve 9 wird um so deutlicher, je länger das betreffende Band 1 in der mittleren Reckzone II einer im elastischen Bereich liegenden Bandzugspannung unterworfen wird.In the drawstring shown, the
I → II → III
and with intermediate relief in the middle stretch zone
I → II '→ III'
and consequently with only one elastic stretching in the middle stretching zone II. The dashed lines rounding 8 of the flow curve 9 is the more pronounced, the longer the tape in
Claims (11)
- Method for the continuous tension-stretching of metal strips (1), in particular having a strip thickness of 0.05 mm to 1.5 mm, according to which the respective strip (1) passes through a braking roll set (2) and a tensioning roll set (3) and is subjected to a stretching tension between the two roll sets (2, 3) in the course of its stretching in the plastic range, characterized in that the strip (1) passes through, between the two roll sets (2, 3), an inlet-side stretching zone (I) between two tension-stretching rolls (4, 5) of an inlet-side tension-stretching roll pair, an outlet-side stretching zone (III) between two tension-stretching rolls (6, 7) of an outlet-side tension-stretching roll pair, and a central stretching zone (II) located between these stretching zones between the two tension-stretching roll pairs, and is stretched in the plastic range and/or elastic range in these stretching zones (I, II, III).
- Method according to Claim 1, characterized in that the strip (1) passes through more than three stretching zones between the two roll sets.
- Method according to Claim 1, characterized in that the strip (1) is stretched in the plastic range in all the stretching zones (I, II, III).
- Method according to Claim 1, characterized in that the strip (1) is stretched in the plastic range in the inlet-side stretching zone (I) and in the outlet-side stretching zone (III) and is subjected to a strip tensile stress in the elastic range in the central stretching zone (II) located between these zones.
- Method according to Claim 1 or 4, characterized in that the strip tensile stress in the central stretching zone (II) is ≤ 80%, preferably ≤ 50%, of the stretching limit of the strip material.
- Method according to any one of Claims 1 to 5, characterized in that the strip (1) passes through the central stretching zone (II) with a residence time of ≥ 1 second.
- Method according to Claim 2 or 6, characterized in that the strip (1), as it passes through five stretching zones, is stretched in the plastic range in the two inlet-side stretching zones and in the two outlet-side stretching zones and is stretched in the elastic range in the central stretching zone.
- Method according to any one of Claims 1 to 7, characterized in that the strip (1) is intermediately wound up after it passes through the inlet-side stretching zone (I) or stretching zones.
- Tension-stretching system for carrying out the method according to any one of Claims 1 to 8, comprising a braking roll set and a tensioning roll set, characterized in that two or more tension-stretching roll pairs (4, 5 and 6, 7) are arranged between the braking roll set (2) and the tensioning roll set (3), wherein an inlet-side stretching zone (I) is formed between the two tension-stretching rolls (4, 5) of the inlet-side tension-stretching roll pair, an outlet-side stretching zone (III) is formed between the two tension-stretching rolls (6, 7) of the outlet-side tension-stretching roll pair and a central stretching zone (II) is formed between the two tension-stretching roll pairs (4, 5 and 6, 7).
- Tension-stretching system according to Claim 9, characterized in that in each case at least one tension-stretching roll (4 and 6) of the tension-stretching roll pairs is designed as a concave/convex tension-stretching roll with a variably adjustable geometry.
- Tension-stretching system according to Claim 9 or 10, characterized in that the strip (1) is acted upon in each case by one or more linear motors in the individual stretching zones (I, II, III).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10323811A DE10323811A1 (en) | 2003-05-23 | 2003-05-23 | Method for the continuous drawing of metallic strips and drawstring line |
| DE10323811 | 2003-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1479460A1 EP1479460A1 (en) | 2004-11-24 |
| EP1479460B1 true EP1479460B1 (en) | 2006-02-01 |
Family
ID=33039322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04002761A Expired - Lifetime EP1479460B1 (en) | 2003-05-23 | 2004-02-06 | Method and apparatus for continuous straightening of metal strips |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7013693B2 (en) |
| EP (1) | EP1479460B1 (en) |
| AT (1) | ATE316830T1 (en) |
| DE (2) | DE10323811A1 (en) |
| ES (1) | ES2252710T3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004048658A1 (en) † | 2004-10-06 | 2006-04-20 | Sms Demag Ag | Apparatus for continuous drawing of a metal strip and method for operating such a device |
| DE102007006809B4 (en) | 2007-02-07 | 2009-04-16 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method and apparatus for continuously drawing a metal strip |
| DE102008024013B3 (en) * | 2008-05-16 | 2009-08-20 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method and device for straightening a metal strip |
| KR101821284B1 (en) * | 2013-08-22 | 2018-01-23 | 비스포크, 인코포레이티드 | Method and system to create custom products |
| US10010918B2 (en) | 2016-10-05 | 2018-07-03 | Allor Manufacturing Inc. | Device and method for leveling a metal plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432828A (en) * | 1939-07-01 | 1947-12-16 | United Eng Foundry Co | Apparatus for stretcher leveling strips |
| AT314453B (en) * | 1971-07-09 | 1974-04-10 | Bwg Bergwerk Und Walzwek Masch | Method and device for reducing sheet metal strips in strip lines |
| GB1473159A (en) * | 1975-09-04 | 1977-05-11 | ||
| DE2625414C2 (en) * | 1976-06-05 | 1985-10-10 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg | Tensioning device for continuously running belts, especially metal belts |
| GB2174027B (en) * | 1985-04-20 | 1988-07-13 | Bwg Bergwerk Walzwerk | Process and equipment for continuous flattening of particularly thin metal strip |
| DE3912676A1 (en) * | 1989-04-18 | 1990-10-25 | Bwg Bergwerk Walzwerk | METHOD AND DEVICE FOR CONTINUOUSLY REACHING THIN BANDS, ESPECIALLY METAL BANDS |
| DE4230243C1 (en) * | 1992-09-10 | 1994-01-27 | Bwg Bergwerk Walzwerk | Roller set for the S-shaped deflection of thin metal strips to be leveled |
| DE19510281C1 (en) * | 1995-03-21 | 1995-12-07 | Brueckner Maschbau | Transporting system for moving material strip, esp. in plastic film stretching appts. |
| DE19719994B4 (en) * | 1997-05-13 | 2005-01-05 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method for influencing the stress distribution in metal strips or sheets of, in particular, non-ferromagnetic material |
| DE10041563A1 (en) * | 2000-08-24 | 2002-03-07 | Sms Demag Ag | Method and device for straightening cold rolled strip and regulating the degree of stretch |
| DE10114883C1 (en) * | 2001-03-26 | 2002-10-31 | Bwg Bergwerk Walzwerk | Train stretching system for steel and metal strips |
| DE10121981C1 (en) * | 2001-05-05 | 2002-12-12 | Bwg Bergwerk Walzwerk | Strip treatment plant for straightening a metal strip |
| US6732561B2 (en) * | 2002-09-23 | 2004-05-11 | The Material Works, Ltd. | Method and apparatus for leveling and conditioning sheet metal |
-
2003
- 2003-05-23 DE DE10323811A patent/DE10323811A1/en not_active Withdrawn
-
2004
- 2004-02-06 ES ES04002761T patent/ES2252710T3/en not_active Expired - Lifetime
- 2004-02-06 AT AT04002761T patent/ATE316830T1/en active
- 2004-02-06 DE DE502004000267T patent/DE502004000267D1/en not_active Expired - Lifetime
- 2004-02-06 EP EP04002761A patent/EP1479460B1/en not_active Expired - Lifetime
- 2004-05-13 US US10/846,158 patent/US7013693B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE316830T1 (en) | 2006-02-15 |
| ES2252710T3 (en) | 2006-05-16 |
| DE10323811A1 (en) | 2005-01-13 |
| US20050016241A1 (en) | 2005-01-27 |
| EP1479460A1 (en) | 2004-11-24 |
| US7013693B2 (en) | 2006-03-21 |
| DE502004000267D1 (en) | 2006-04-13 |
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