EP0298852B1 - Verfahren und Vorrichtung zum Richten eines metallischen Bandes - Google Patents

Verfahren und Vorrichtung zum Richten eines metallischen Bandes Download PDF

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Publication number
EP0298852B1
EP0298852B1 EP88401722A EP88401722A EP0298852B1 EP 0298852 B1 EP0298852 B1 EP 0298852B1 EP 88401722 A EP88401722 A EP 88401722A EP 88401722 A EP88401722 A EP 88401722A EP 0298852 B1 EP0298852 B1 EP 0298852B1
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EP
European Patent Office
Prior art keywords
levelling
rolls
strip
axial
roll
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
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EP88401722A
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English (en)
French (fr)
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EP0298852A2 (de
EP0298852A3 (en
Inventor
François Mazodier
René Paulhac
Jean Peyron
Zalman Padwo
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Clecim SAS
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Clecim SAS
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Publication of EP0298852A2 publication Critical patent/EP0298852A2/de
Publication of EP0298852A3 publication Critical patent/EP0298852A3/fr
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Publication of EP0298852B1 publication Critical patent/EP0298852B1/de
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    • 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 subject of the invention is an installation for leveling a metal strip which can be used especially for obtaining flat products without edge defects, in particular those which are induced by the fact that the properties, in particular mechanical or metallurgical, on a certain width at the edge of the strip, are very markedly different from that of the central part of the strip.
  • the product is subjected, after rolling, galvanizing, tinning or other process, to a certain number of finishing operations, in particular to remove certain defects.
  • the strip is passed through a leveling cage intended to eliminate warping due to the fact that the metal fibers do not have a regular length over the width of the sheet.
  • the sheet is made to travel on rollers defining a corrugated path and subjecting it to a tension so as to produce elongations by traction-bending.
  • a leveler therefore consists of a leveling cage disposed between two tension blocks, respectively input and output and within which are mounted a plurality of glider rollers whose axes are arranged one compared to the others staggered on different levels so as to define a wavy path.
  • the leveling cage can also be associated with other equipment which precedes it and which has a different function such as, for example, a rolling mill cage called "Skin-Pass" performing a low elongation.
  • Sk-Pass rolling mill cage
  • the leveler conventionally comprises two input and output tensioner blocks 12 between which a leveling cage 10 is disposed.
  • Each tensioning unit 11 or 12 comprises a number of rollers 13 and 17, intended to keep the strip 3 in tension which is made to run and to impose an elongation thereon by appropriate means.
  • the leveling cage proper 10, disposed between the tensioning blocks is generally made up of two or four active leveling cylinders 2 on which the strip 3 which travels in directions perpendicular to the axes of the cylinders is subjected to deformations of traction-bending in the elastoplastic field.
  • the active cylinders preferably have a very small diameter in relation to their length and this is why each of the active cylinders 2 is generally placed either on two rollers 21 called intermediate needles which rest on three rows 22 of support rollers, either directly on two rows of support rollers 22, all combinations being possible depending on the specificity of the machine. Special stops are fitted to the ends of the cylinders to enable them to operate in good conditions.
  • the assembly consisting of an active cylinder and its support rollers is called "leveling equipment".
  • the leveling device (s) may be followed by devices intended to correct a transverse camber of the so-called "tile" strip or a longitudinal camber; the active cylinders of these crews are said to be: anti-tile cylinder 15 and defogger cylinder 16, the latter two functions being sometimes confused.
  • Deflector rollers 18 the number of which depends on the arrangement of the machine, can be located at different places to force the strip 3 to follow a particular path during its passage through the machine or to perform other functions.
  • the tangential speed of the rollers 17 of the outlet block 12 is greater than that of the rollers 13 of the inlet block 11 so as to subject the strip to an adjustable tensile force.
  • the positions of the leveling rolls 2, anti-tile 15 and countersink 16 are adjustable in height relative to the mean plane of travel of the strip which thus follows a zig-zag path, the amplitude of which can be adjusted.
  • the strip which is subjected to a significant tensile force, lengthens during its passage over each active cylinder of small diameter and the height adjustment of the active cylinders makes it possible to modify the deformation force applied to the strip. The latter is thus deformed in the plastic area on each active cylinder whose shape it follows over an angular sector, undergoing an elongation which gives it the form of a developable surface, each of the active cylinders 14, 15 and 16 ensuring its own role.
  • the thinned parts can be arranged at the two ends of the same cylinder, the central part of which, which forms the useful table and normally has a constant diameter, covers the central zone of the strip over a constant width, the zones of the two edges passing over both ends thinned.
  • a cylinder of determined profile can only be suitable for leveling strips whose width varies only to a small extent.
  • Each cylinder is therefore assigned a width range and, when a strip of width larger or smaller than the limits is to be treated, it is necessary to change the cylinder to replace it with another whose thinned parts are spaced from each other by the desired distance.
  • the passage over the thinned parts is more effective when the latter are formed on small diameter cylinders such as active cylinders, on which the strip is subjected to deformation in the plastic field.
  • the object of the invention is to solve such a problem by means of special provisions. making it possible to provide thinned parts on the active leveling cylinders themselves, while retaining possibilities for adjusting the latter both in height and in the axial direction, without significantly increasing the size of the leveling cage thus improved.
  • the thinned parts are therefore formed respectively at opposite ends of two active leveling cylinders and, each active cylinder resting, in a manner known per se, on at least two support rollers, each leveling unit formed by an active cylinder, respectively upper or lower, and the supporting rollers which are associated with it, is mounted on a support, respectively upper or lower, guided in a sliding manner, inside the uprights of the cage frame, according to two orthogonal directions, respectively, a vertical direction and an axial direction parallel to the axes of the cylinders, and that the installation comprises means for controlling, respectively, the axial sliding and the vertical sliding, of each leveling unit with its support at the inside said frame, respectively, for adjusting the level of each active cylinder and for adjusting the axial position of its part thinned.
  • each leveling unit comprising an asymmetrical cylinder and its support rollers, consists of a chassis forming a cassette mounted to slide in the axial direction on a guided support beam slidingly, vertically, on the uprights of the cage, the means for adjusting the axial position of each cylinder are constituted by jacks bearing in the axial direction, respectively, on the cassette and on the corresponding beam and the level adjustment means of each active cylinder are constituted by jacks bearing in the vertical direction, respectively, on the corresponding beam and on the cage .
  • each leveling unit comprising an asymmetrical cylinder and its support rollers, consists of a beam, respectively upper or lower, mounted sliding, respectively, in the direction vertical and in the axial direction, on the uprights of the cage, and resting on fixed rails, respectively upper or lower, parallel to the axes of the cylinders, by means of rollers and in a way allowing the displacement of said beam between the amounts of the cage, on the one hand, vertically, under the action of the means for adjusting the level of the corresponding active cylinder and on the other hand, axially, by rolling on said support rails, under the action of the means of adjustment of the axial position of the thinned part of the corresponding active cylinder, said vertical adjustment means bearing on the corresponding beam in a manner allowing dep axial lacing thereof.
  • the support rollers of the upper beam are mounted in pairs at each end of the beam on arms articulated around horizontal axes and allowing the lowering of the beam with the leveling crew in the working position under the action of jacks and the return of the beam to the high disassembly position.
  • each support beam of a leveling equipment with asymmetrical cylinders is associated with an axial adjustment device comprising a centering plate mounted to slide perpendicularly to the beam on a slide mounted sliding on slides extending between the two uprights. of the frame 6 parallel to the beam, the end of the plate being able to engage in a guide groove formed on the beam in a vertical direction.
  • the various members necessary for the height adjustment and the axial adjustment of the active cylinders form a particularly compact assembly which can be housed in a limited space, this characteristic being particularly advantageous in the case of small machines sizes and for adapting existing lines.
  • Such faults can also be corrected by virtue of the arrangements according to the invention which make it possible to carry out an axial adjustment of a fairly large amplitude and also to provide thinned parts over a relatively large length at the end of each active cylinder so that each thinned part covers a lateral zone of the strip of width determined according to the defects to be corrected.
  • the invention also makes it possible to correct a defect induced by such a difference in properties, if necessary on a single edge.
  • the invention can also be useful in the case where the strip before planing has long edges such that it is not possible to correct them entirely.
  • defects both for excessive long edges of the strip before planing and for defects induced by different mechanical properties at the edges over a certain width relative to the entire central part of the strip. it being understood that it is the correction of the effects of this latter type of fault which is particularly sought after.
  • Figure 1 is a schematic overview of a conventional leveling installation.
  • FIG. 2 schematically represents a conventional arrangement of the cylinders of a leveling unit.
  • FIG. 3 schematically illustrates, in perspective, the principle of the invention.
  • Figure 4 is a partial view of the end of an active leveling cylinder.
  • FIG. 5 schematically represents a first embodiment of a leveling cage according to the invention.
  • Figure 6 shows in more detail another embodiment seen from the operator side for example, with partial sections.
  • Figure 7 is a cross-sectional view parallel to the axes of the cylinders.
  • FIG. 8 is a partial top view, according to the arrow F in FIG. 6.
  • Figure 3 shows schematically in perspective, the passage of the strip 3 on two cylinders 23, 24 kept centered on their axes by end pieces 27 and defining a wavy path.
  • Two different active cylinders, respectively 23 and 24, of the cage are provided with an asymmetrical profile, each cylinder being provided with a thinned part 20 at only one of its ends and having a substantially constant diameter on the normal part 26 covering the most of its length, to the other end.
  • the thinned parts 25, 25 ′ are placed respectively at two opposite ends of the two cylinders 23 and 24, on either side of the longitudinal axis 30 of the strip and the two cylinders 23 and 24 can be moved in opposite directions , parallel to their axis along the arrows (f) so as to adjust their axial positions so that each thinned part, respectively, 25, 25 ′ is placed directly above one of the two edges, respectively 31, 31 ′ of the strip 3.
  • each thinned part 25, 25 ′ having a length a it is possible to adjust the positions of the two cylinders axially so that the diameter D of the cylinder decreases progressively from a line placed at a distance L from the edge 31 of the strip 3.
  • the latter therefore comprises two lateral zones 32, 32 ′ of width L and L ′ passing over the thinned parts 25 of the cylinders 23 and 24 and framing a central area 33 passing over the cylindrical parts 26 of the two cylinders and it is possible, by acting individually on each of the cylinders, to adjust the widths, respectively, L and L ′ of the two lateral zones 32, 32 ′.
  • the thinned parts 25 have a conical shape connecting to the cylindrical part 26 by a rounded shape, but a different profile could also be provided, for example parabolic or similar.
  • FIG. 5 schematically represents, by way of simple example, a first possible embodiment of the invention.
  • Each leveling cylinder 23, 24 can be placed, with the corresponding equipment, in a chassis 35 forming a cassette mounted to slide axially on a support beam 36 on which is supported a means for controlling the axial movement of the cassette, such as '' a cylinder 37.
  • At least one of the two beams can be slidably mounted vertically in a frame 38 under the action of jacks 39 making it possible to adjust the height level of the roller and to move the cassettes apart. and on the other side of the plane of the strip 3, in the disassembly and reassembly position.
  • the invention thus makes it possible not only to adapt exactly to the width of the strip without proceeding with the exchange of the leveling cylinders, but also to adjust the position of each edge of the strip on the thinned part of the corresponding cylinder and by therefore impose a variation in the length of the routes traversed on the lateral zones of the strip with respect to the central part, by adjusting the relative positions of the thinned parts 25 with respect to the longitudinal axis of travel 30.
  • the axial displacements of the two leveling rollers 23, 24 are not necessarily equal and it is therefore possible, if necessary, to vary the widths L and L ′ of the lateral zones whose path lengths are modified .
  • the asymmetrical cylinders 23 and 24 are part of two planing equipments 4 and 5 fixed respectively on an upper beam 41 and a lower beam 51 which are slidably mounted transversely to the axis of travel in a frame 6 comprising as seen on the FIG. 6, two uprights 61 inside which windows 62 are provided for the passage of the beams 41 and 51.
  • the two beams 41 and 51 can also slide vertically along guide faces 63 formed on the uprights 61 of the frame 6.
  • Cylinders 64 and 65 control the vertical displacements, respectively, of the upper beam 41 and the lower beam 51.
  • the cylinders 64 and 65 are of the hydraulic and electromechanical type but they could be of any other nature.
  • the upper beam 41 is carried by rollers 42 which roll on rails 66 extending horizontally to the upper part of the frame 6.
  • connection between the beam 41 and the support rails 66 is made so as to allow the vertical sliding of the beam 41 in the working position, under the action of the jacks 64 and its return to the level of the rails 66 in the disassembly position.
  • rollers 42 can be mounted on sliding frames or on articulated arms of sufficient length to allow the lowering of the leveling cylinder 24 in the working position shown in dotted lines in FIG. 6.
  • Such a mobile mounting of the rollers relative to the beam is not essential for the beam 51 which can be simply lifted by mechanical jacks 65, the main role of which is the correct positioning of the beam, the weight of the assembly of the crew ensuring the return to the low position of the beam 51 which comes to rest on horizontal rails 67 by means of rollers allowing the axial movement of the beam 51.
  • the lower beam can, sometimes, also be actuated by a hydraulic cylinder which is added to the mechanical cylinders 65 to allow rapid opening of the cage from below.
  • each beam 41, 51 can be achieved by a mechanism of the jack, self-propelled trolley, winch, chain, etc. type, not shown in the drawings.
  • each leveling unit is preferably carried out by centering devices 7 mounted next to each beam 41, 51, between the two uprights 61 of the frame 6.
  • each centering device 7 is carried by a shank 8 which slides along slides 81 extending between the two uprights 61 of the frame 6 parallel to the axes of the leveling cylinders.
  • a mechanical or hydraulic cylinder 82 resting on one of the uprights 61 makes it possible to adjust the position of the centering device 7 along the corresponding beam 41.
  • a similar device 7 ′ is associated with the lower beam 51.
  • the centering device 7 (7 ′) comprises a centering plate 71 slidably mounted on the stretcher 8 perpendicular to the slides 81 and to the axes of the cylinders and the end 74 of which can engage in a groove 47 formed on the beam 41 in a vertical direction.
  • the transverse sliding movement of the plate 71 relative to the beam 41 is controlled by a retraction cylinder 72, the body and the rod of which are articulated respectively on the strut 8 and on a hooking lug 73 secured to the centering plate 71.
  • the plate 71 is put in place in front of the corresponding groove 67 and, by means of the jack 72, the plate is engaged in the groove.
  • the jack 82 then makes it possible, by means of the plate 71, to precisely adjust the axial position of the beam 41 to precisely position the thinned part of the leveling cylinder relative to the edge of the sheet.
  • the strut 8 is then held in this position by the jack 82 and the end 74 of the plate 71 constitutes a guide for the vertical movement of the beam 41 under the action of the jacks 64.
  • the adjustment of the lower beam 51 is carried out in the same way by the centering device 7 ′.
  • the axial adjustment could also be carried out in the working position by equipping the clamping cylinders with holding devices and / or allowing the beams to slide.
  • the order in which the two asymmetrical cylinders will be placed will be chosen according to the construction conveniences and the different desired strip trajectories. One can therefore also choose to apply this correction principle to, for example, two cylinders not located on either side of the strip but on the same side with respect to a face of the strip. They may also not necessarily be directly neighboring.
  • the position adjustment can be done when the belt is engaged or not in the machine, in motion or stopped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Claims (5)

  1. Vorrichtung zum Richten eines metallischen Bandes (3) mit Erzeugung von Zug- und Biegedehnungen beim Durchlaufen des Bandes (3) gemäss einer Längsachse (30) in einem mit Spannungsmittel (11) (12) des Bandes (3) ausgerüsteten Richtgerüst, das innen in einem Gestell (6) mehrere Rollen (2, 15, 16, 18, 23, 24) mit zueinander parallelen und zur Durchlaufrichtung senkrechten Achsen aufweist, und zwar jeweils mindestens ein Paar Richtrollen (21, 23, 24) und Anticrossbow-(15) und Gegenbiegerollen (16), die in unterschiedlichen Ebenen, die einen über und die anderen unter dem Band (3) derart angeordnet sind, dass somit ein gewellte Bahn bestimmt wird, wobei mindestens zwei dieser Rollen (23, 24) einen unsymmetrischen Profil mit einem an einem Ende sich verjüngenden Teil (25, 25') aufweisen, dessen Durchmesser allmählich abnimmt, und wobei die sich verjüngenden Teile (25, 25') jeweils an entgegengestzten Enden der unsymmetrischen Rollen (23, 24) beiderseits der Achse (30) angeornet sind, und diese Rollen (23, 24) mit den sich verjüngenden Enden (25, 25') zwecks Anpassung des Querabstandes der sich verjüngenden Teile (25, 25') an die Breite des Bandes (3) in entgegengesetzten Richtungen parallel zu ihren Achsen verschiebbar sind, dadurch gekennzeichnet, dass die sich verjüngenden Teile (25, 25') jeweils an entgegengesetzten Enden von zwei aktiven Rollen (23, 24) angeordnet sind, und dass jede aktive Rolle in an sich bekannter Weise durch mindestens zwei Stützrollen (21) (22) abgestützt ist, und dass jedes Richtwerk (4, 5), das aus einer oberen (23) bzw. unteren (24) aktiven Rolle und den zugeordneten Stützrollen (21) (22) besteht, auf einer oberen (35) (41) bzw. unteren (35') (51) Abstützung montiert ist, die innen in den Ständer (38), (61) des Gestells (6) des Gerüstes (10) gemäss zwei othogonalen Richtungen, jeweils einer senkrechten Richtung und einer axialen, zu den Achsen der Rollen (23, 24) parallelen Richtung gleitbar geführt ist, und dass die Vorrichtung Steuermittel (37, 37') (7, 7') zum axialen bzw. (39, 39') (64, 65) zum senkrechten Gleiten von jedem Richtwerk (4, 5) mit seiner Abstützung (35, 35') (41, 51) innen in diesem Gestell (6) zur Höheneinstellung von jeder aktiven Rolle (23, 24) bzw. zur Einstellung der axialen Lage von seinem sich verjüngenden Teil (25, 25') umfasst.
  2. Richtvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Abstützung von jedem Richtwerk mit einer unsymmetrischen Rolle (23, 24) und seinen Stützrollen (21, 22) aus einem als Kassette (35, 35') ausgebildeten Châssis besteht, das gemäss einer axialen Richtung auf einem Stützträger (36, 36') gleitbar montiert ist, der senkrecht auf den Ständer (61) des Gerüstes (10) gleitbar geführt wird, dass die Mittel zur Einstellung der Axiallage von jeder Rolle (23, 24) aus Zylinder (37, 37') bestehen, die sich in axialer Richtung jeweils auf den entsprechenden Kassette (35, 35') und Träger (36, 36') abstützen, und dass die Mittel zur Höheneinstellung von jeder aktiven Rolle (23, 24) aus Zylinder (39, 39') bestehen, die sich in senkrechter Richtung jeweils auf dem entsprechenden Träger (36, 36') und dem Gestell (6) des Gerüstes (10) abstützen.
  3. Richtvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Abstützung jedes Richtwerks (4, 5) mit einer unsymmetrischen Rolle (23, 24) und seinen Stützrollen (21, 22) aus einem oberen (41) bzw. unteren Träger (51) besteht, der jeweils gemäss der senkrechten Richtung und gemäss der axialen Richtung auf den Ständer (61) des Gerüstes (10) gleitbar montiert und über Laufrollen (42, 52) auf feststehenden, zu den Achsen der Rollen (23, 24) parallelen oberen (66) bzw. unteren (67) Schienen abgestützt ist, und zwar derart, dass dieser Träger (41, 51) zwischen den Ständer (61) des Gerüstes (10) bei Betätigung des Mittels (64, 65) zur Höheneinstellung der entsprechenden aktiven Rolle (23, 24) einerseits senkrecht verschiebbar ist, und bei Betätigung des Mittels (7, 7') zur Einstellung der Axiallage des sich verjüngenden Teils (25, 25') der entsprechenden aktiven Rolle (23, 24) auf diesen Trägerschienen (66, 67) anderseits axial verfahrbar ist, wobei die senkrechten Einstellmittel (63, 64) sich jeweils auf dem entsprechenden Träger (41, 51) derart abstützen, dass dieser in axialer Richtung verschiebbar ist.
  4. Richtvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Laufrollen (42) zur Abstützung des oberen Trägers (41) an jedem Ende des Trägers (41) auf um Horizontalachsen (44) angelenkten Arme (43) paarweise montiert sind, wodurch der Träger (41) mit dem Richtwerk (4, 5) bei Betätigung der Zylinder (64) in die Arbeitsstellung absenkbar und der Träger (41) in die obere Ausbaustellung rückstellbar ist.
  5. Richtvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass jedem Träger (41, 51) zur Abstützung des Richtwerks (4) (5) mit einer unsymmetrischer Rolle (23) (24) eine axiale Einstellvorrichtung (7) mit einem Zentrierplättchen (71) zugeordnet ist, das senkrecht zum Träger auf einem, auf zwischen den beiden Ständer (61) des Gestells (6) parallel zum Träger (41) (51) verlaufenden Schienen (81) gleitbar angeordneten Schlitten (8) gleitend montiert ist, wobei das Ende (72) des Plättchens (71) in einer auf dem Träger (41) (51) gemäss einer senkrechten Richtung angeordneten Führungsnut (47) zum Eingriff kommen kann.
EP88401722A 1987-07-08 1988-07-01 Verfahren und Vorrichtung zum Richten eines metallischen Bandes Expired - Lifetime EP0298852B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8709715 1987-07-08
FR8709715A FR2617744B1 (fr) 1987-07-08 1987-07-08 Procede et installation de planage d'une bande metallique

Publications (3)

Publication Number Publication Date
EP0298852A2 EP0298852A2 (de) 1989-01-11
EP0298852A3 EP0298852A3 (en) 1990-09-12
EP0298852B1 true EP0298852B1 (de) 1993-10-20

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EP88401722A Expired - Lifetime EP0298852B1 (de) 1987-07-08 1988-07-01 Verfahren und Vorrichtung zum Richten eines metallischen Bandes

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Country Link
US (1) US4898013A (de)
EP (1) EP0298852B1 (de)
JP (1) JP2650141B2 (de)
CS (1) CS274742B2 (de)
DE (1) DE3885019T2 (de)
FR (1) FR2617744B1 (de)

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FR2882667B1 (fr) * 2005-03-01 2007-05-11 Redex Sa Dispositif de planage sous traction d'une bande metallique continue
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US9776226B2 (en) * 2011-08-08 2017-10-03 Primetals Technologies Austria GmbH Tension and guidance device, and method of rolling strip material
CN109317975B (zh) * 2018-09-29 2020-09-25 广东亮河机电设备有限公司 一种便于调节的五金制品加工装置
CN109465311B (zh) * 2018-11-20 2020-07-03 广东博智林机器人有限公司 一种铝模板平面校正装置
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032890A1 (de) 2009-09-18 2011-03-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und vorrichtung zum kontinuierlichen streckbiegerichten von metallbändern
DE102009041852A1 (de) 2009-09-18 2011-04-07 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren und Vorrichtung zum kontinuierlichen Streckbiegerichten von Metallbändern
WO2011161134A1 (de) 2010-06-23 2011-12-29 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Streckbiegerichtanlage
DE102010024714A1 (de) 2010-06-23 2011-12-29 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Streckbiegerichtanlage
DE102010024714B4 (de) * 2010-06-23 2014-09-25 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zum Streckbiegerichten von Metallbändern und Streckbiegerichtanlage
DE102010024714C5 (de) 2010-06-23 2018-10-18 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zum Streckbiegerichten von Metallbändern und Streckbiegerichtanlage

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US4898013A (en) 1990-02-06
EP0298852A2 (de) 1989-01-11
CS488788A2 (en) 1990-12-13
DE3885019D1 (de) 1993-11-25
FR2617744B1 (fr) 1994-05-20
CS274742B2 (en) 1991-10-15
JPS6427718A (en) 1989-01-30
FR2617744A1 (fr) 1989-01-13
DE3885019T2 (de) 1994-05-11
JP2650141B2 (ja) 1997-09-03
EP0298852A3 (en) 1990-09-12

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