EP2653241A1 - Procédé de fabrication pour une bande - Google Patents

Procédé de fabrication pour une bande Download PDF

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Publication number
EP2653241A1
EP2653241A1 EP12164523.8A EP12164523A EP2653241A1 EP 2653241 A1 EP2653241 A1 EP 2653241A1 EP 12164523 A EP12164523 A EP 12164523A EP 2653241 A1 EP2653241 A1 EP 2653241A1
Authority
EP
European Patent Office
Prior art keywords
rolling
strip
profiling
stock
rolling stock
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Withdrawn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
EP12164523.8A
Other languages
German (de)
English (en)
Inventor
Karl Mayrhofer
Gerhard Finstermann
Guoxin Shan
Josef Watzinger
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.)
Primetals Technologies Austria GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH Austria
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 Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH Austria
Priority to EP12164523.8A priority Critical patent/EP2653241A1/fr
Priority to PCT/EP2013/057297 priority patent/WO2013156332A1/fr
Publication of EP2653241A1 publication Critical patent/EP2653241A1/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Withdrawn legal-status Critical Current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
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
    • B21B1/026—Rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling

Definitions

  • the present invention further relates to a computer program comprising machine code which can be processed directly by a control computer for a production device for a belt and whose execution by the control computer causes the control computer to operate the production device according to such a production method.
  • the present invention further relates to a control computer for a production device for a band.
  • the flat rolled stock When rolling metal, the flat rolled stock is reduced in thickness and lends itself correspondingly thereto.
  • the width of the flat rolled material remains substantially constant. In general, the length of the rolled rolling stock, so the band, viewed over the width is not constant. In particular, occurs in the middle of the rolled strip usually a slightly greater elongation than at the lateral ends.
  • the rolled strip therefore has on its head and on its band foot convex tongues of tongues, which arise as scrap.
  • the accumulated scrap amount can be up to about 0.4% of the rolling stock used.
  • a defined thickness profile is impressed during the transverse rolling of the flat rolling stock, which is a corresponding thickness profile seen in the subsequent longitudinal rolls transverse to the corresponding rolling conveying direction.
  • the rolling stock passes through the rolling stand in a conveying direction which, relative to the rolling stock, extends transversely to the conveying direction during the subsequent longitudinal rolling.
  • the thickness profile can thus be impressed on the rolling stock by appropriately tracking the roll gap.
  • the thickness profile can be concave or convex.
  • the known from the above DE-Script procedure is only applicable to heavy plate, so if the flat rolling is relatively short, so that it can be first rolled transversely.
  • the known from the aforementioned DE-Scripture principle is not applicable.
  • the length of a slab (English: slab) is often about 10 m, sometimes it is even above 10 m. With such lengths only a longitudinal rolling is possible. A rotation of the rolling stock by 90 ° and subsequent rolling is not possible.
  • the object of the present invention is to provide possibilities by means of which, even with a flat rolling stock, in which the further rolling conveying directions, based on the rolling stock, run parallel or antiparallel to the first rolling conveying direction, the band tongues avoided or at least significantly reduced can be.
  • Slabs generally have a relatively large thickness, typically 100 mm and more, usually even more than 150 mm.
  • Vorband usually has a thickness between 20 mm and 80 mm.
  • Prefabricated strip usually has a thickness which is between 0.5 mm and a few mm, in extreme cases up to 10 mm.
  • the production process according to the invention should, if possible, avoid the occurrence of scrap on the tape head and on the belt foot.
  • the concave thickness profile is therefore preferably determined such that the band has neither a convex band tongue at its band head nor at its band foot.
  • a convex tongue it is possible for a convex tongue to remain or for ligaments to remain, but for the remaining ligaments to be significantly smaller than in a conventional manufacturing method of the prior art ,
  • the profiling device is formed as part of a continuous casting device.
  • the casting mold itself may already have a corresponding concave cross section.
  • the corresponding profiling can take place in one or more roller segments of the casting device.
  • the profiling device is designed as a rolling device.
  • the rolling device can, for example, in the case that the concave thickness profile impressed the still hot flat flat rolling is, in front of the flame cutting machine (English: torch cutting machine) of the casting device may be arranged.
  • it may be a rolling mill directly upstream rolling device. It is even possible to use the rolling stand (in the case of several rolling stands, the first rolling stand) of the rolling mill as a profiler.
  • the profiling device is designed as an uncontrolled device with respect to the concave thickness profile.
  • the profiling device is designed as a controllable with respect to the concave thickness profile device. Because in this case, it is possible that based on output data of the rolling stock and stitch plan data of the strip in conjunction with geometric data of the rolling mill on the basis of a rolling model a Sollkonkavtician is determined and the profiling is set such that a deviation of the concave thickness profile is minimized by the Sollkonkavtician. As a result, in particular the accumulated scrap amount can be minimized according to plan.
  • the controllability of the concave thickness profile has significant advantages.
  • a corresponding model error can be classified according to material properties and pass schedule and assigned to the corresponding type of rolling stock. This allows the Adjustment of the concave thickness profile in the sense of a manual or online adaptation of flat rolling stock to flat rolling stock to be further improved.
  • Other approaches are possible.
  • the production method according to the invention is particularly advantageous if the rolling stock is fed to the rolling mill as cut to length, essentially rectangular in length and width, in particular as a cuboid rolling stock.
  • the object of the invention is further achieved by a computer program of the type mentioned.
  • the computer program is designed such that the control computer operates the production device according to a production method according to the invention.
  • control computer for a production device for a belt which is designed such that it operates the production device according to a manufacturing method according to the invention.
  • control computer is designed according to the invention and operates the production device according to a manufacturing method according to the invention.
  • roller stock is always used for the precursor before the rolling of the rolling stock and during the rolling of the rolling stock, the term “strip” for the end product resulting from the rolling.
  • the rolling mill 2 comprises at least one rolling stand 3.
  • the rolling stands 3 of the rolling mill 2 have, as shown in FIG. 1 in addition to work rolls on other rollers, in particular support rollers (4-high) and possibly also intermediate rollers (6-high).
  • a flat rolling stock 4 is conveyed in a first rolling pass in a first rolling conveying direction x through a rolling stand 3 of the rolling mill 2 and in this case rolled.
  • the rolling stands 3 of the rolling stock 4 are consecutively run through.
  • Each rolling stand 3 carries out a respective rolling pass, so that the rolling stock 4 is rolled successively to the strip 1.
  • the rolling stock 4 passes through the rolling stand 3 executing the respective rolling pass in a respective rolling conveying direction, the respective rolling conveying direction coinciding with the direction of the first rolling pass, ie the first rolling conveying direction x.
  • the further rolling conveying directions are therefore parallel to the first rolling conveying direction x (non-reversing rolling).
  • the rolling mill 2 has only one single rolling stand 3 (or in individual cases two rolling stands 3), a reversing rolling usually takes place in the rolling mill 2.
  • the rolling stock 4 is therefore stopped after the first rolling pass, the conveying direction reversed, the rolling stock 4 again - this time against the first rolling conveyance x - promoted by the rolling stand 3 (or the two rolling stands 3), then again the rolling stock 4 stopped and the Conveying direction again reversed and so on until all necessary rolling passes are executed, the rolling stock 4 has thus been rolled successively to the belt 1.
  • the further rolling passes are also carried out after the first pass.
  • the rolling conveyance directions of the first, third, fifth, etc. roll passes are parallel to each other.
  • the rolling conveying directions of the second, fourth, sixth, etc. rolling parallel to each other.
  • the rolling conveyance directions of the straight rolling passes are in anti-parallel to the rolling conveyance directions of the odd rolling passes.
  • the manufacturing device further comprises - in addition to the rolling mill 2 - serving as a profiling rolling device 5.
  • the profiling is shown in FIG. 1 upstream of the rolling mill 2.
  • the rolling stock 4 - see FIG. 2 - Embossed a defined concave thickness profile K, ie a concave thickness profile K, the course in the width direction of the rolling stock 4 is known in advance.
  • the impressing of the thickness profile K is in this case essentially connected to a material transverse flow, with a material longitudinal flow not at all or only to a small extent.
  • the rolling stock 4 Due to the embossing of the concave thickness profile K, the rolling stock 4 has the corresponding concave thickness profile K, as seen transversely to the first rolling conveying direction x, before the first rolling pass.
  • FIG. 2 shows by way of example and greatly exaggerated a possible concave thickness profile K.
  • the rolling stock 4 runs according to FIG. 1 in a profiling conveying direction x 'from the profiling from.
  • the rolling stock 4 already has the concave thickness profile K at this time, that is to say when leaving the profiling device.
  • the concave thickness profile K is thus already impressed on the flat rolling stock 4 in the profiling device as a thickness profile transverse to the profiling conveying direction x ', ie in the form of the thickness as a function of the location in the width direction of the flat rolling stock 4.
  • the profiling device upstream of the rolling mill 2.
  • the profiling could alternatively (in the case of a reversing mill) with the roll stand 3 or (in the case of a multi-stand rolling train) to be identical to the first rolling stand 3 of the rolling mill 2.
  • the profiling device is furthermore designed as a rolling device 5. Again, this is not mandatory. This will be explained in more detail later in conjunction with further FIG.
  • the profiling device is designed as a rolling device 5, it usually executes two stitches.
  • the first of these two stitches serves as a calibration pass to compensate for any thickness inaccuracies of the incoming flat rolling stock 4.
  • the second of these two stitches is used to impress the desired concave thickness profile K.
  • the rolling device 5 can for this purpose in accordance with the representation of FIG. 1 have two rolling stands.
  • the manufacturing device furthermore has a control computer 6.
  • the control computer 6 controls (at least) the rolling mill 2 and the profiling device.
  • the control computer 6 is designed such that it operates the manufacturing device according to the above-explained procedure.
  • the control computer 6 may be designed for this purpose as a software programmable device which is programmed with a computer program 7.
  • the computer program 7 comprises machine code 8, which can be processed directly by the control computer 6.
  • the processing of the machine code 8 by the control computer 6 causes the corresponding operation of the manufacturing device by the control computer. 6
  • the computer program 7 can be supplied to the control computer 6 in any manner, for example via a connection to a computer network or via a mobile data carrier 9, on which the computer program 7 is stored in (exclusively) machine-readable form.
  • the mobile data carrier 9 is in FIG. 1 shown as a USB memory stick. However, this illustration is only an example.
  • the rolled strip 1 Due to the rolling of the rolling stock 4 in the rolling mill 2, the rolled strip 1 has a considerably smaller thickness d (see also FIG. 3 ) as the rolling stock 4, which has a thickness D (see also FIG. 2 ) having.
  • the band 1 according to FIG. 3 a considerably greater length 1 than the rolling stock 4, the length in FIG. 1 is denoted by L.
  • the width b of the band 1, however, is equal to or at least approximately equal to the width B of the rolling stock. 4
  • band tongues 10 would form on the tape head 1 'and the band foot 1 "of the band 1, which extend substantially over the entire width b of the band 1 and extend substantially convex.
  • the (unwanted) band tongues 10 are in FIG. 3 indicated by dashed lines. Due to the concave thickness profile K, however, the band tongues 10 can be avoided.
  • the band tongues 10 can be avoided both on the band head 1 'and on the band foot 1 "According to current knowledge, it is considered optimal if small residual tongues 11 form in the corners of the band 1, see FIG. 4 or the band 1 has a slightly concave shape (in FIG. 4 indicated by dashed lines).
  • the extent of the concavity of the concave thickness profile K can be readily determined experimentally. In particular, it can be estimated on the basis of experience in a first approximation. If - purely by way of example - it is known that the flat rolling stock 4 is formed as a (tongueless) slab having a thickness D of 203 mm, a width B of 1280 mm and a length L of 11,900 mm and a band 1 a Vorband be rolled with a thickness d of 25 mm and a width b of 1280 mm, so form in a manufacturing method of the prior art in the Rule strip tongues 10 with a tongue length ⁇ l of about 220 mm.
  • the contour of the concave thickness profile K can be mathematically approximated as needed.
  • the contour can be set as a second order symmetric parabola or as a higher order symmetric parabola - especially fourth, sixth, etc. order.
  • an approach by a polygon is possible.
  • Other curves are also possible, such as trigonometric functions, exponential or logarithmic functions, Chebyshev polynomials and others.
  • the opening band is often referred to as pre-strip.
  • the rolling mill 2 is designed in this case as a pure finishing line.
  • the finishing train is usually designed as a multi-stand rolling train, in which the individual rolling stands 3 are traversed by the flat rolling stock 4 successively and always in the same conveying direction x.
  • the rolling stock 4 is formed as a slab, the band 1 as a finished strip.
  • the rolling mill 2 is designed as a combined rolling mill, which has a roughing train and a finishing train downstream of the roughing train. For example, a reversing rolling can take place in the roughing train, a non-reversing rolling in the finishing train.
  • the profiling is designed as part of a strand casting device.
  • a continuous casting mold 12 already have a corresponding concave profile, so that even the emerging from the continuous casting mold 12 metal strand 13 has the corresponding concave thickness profile K.
  • Roll segments 14 serve the continuous casting as profiling. This procedure may be particularly advantageous if the forming of the cast strand 13 takes place in a region in which the cast strand 13 is not solidified or is just solidified, ie the deformation takes place in a region of the cast strand 13 in which it still has a liquid core or just no liquid core.
  • the profiling device is designed as a roller segment 14 of the continuous casting device
  • different configurations of the roller segments 14 are also possible.
  • the roller segments 14 according to the representation of FIGS. 7 to 10 a plurality of rollers 14 'have.
  • the outer rollers 14 'taper outwards Is shown in FIG. 7 a linear rejuvenation.
  • the taper could not be linear.
  • the roller axes 14 "of the outer rollers 14' may form an angle with the roller axes 14" of the middle roller 14 '(or middle rollers 14'). This is in FIG. 8 shown.
  • FIG. 7 and 8th show rigid embodiments of the roller segments 14, in which, with the exception of the total employment of the respective roller segment 14 (see FIG. 9 ) no further parking possibilities are given.
  • the angle that the roller axles 14 "form with each other is adjustable.
  • the profiling device as a rolling device 5
  • TCM torch cutting machine
  • the concave thickness profile K is impressed on the flat rolling stock 4 by means of the rolling device 5.
  • This rolling device 5 can - analogous to FIG. 1 - have two rolling stands.
  • FIGS. 13 to 17 show possible designs of rollers 15 of the rolling device 5.
  • rollers 15 of the corresponding rolling device 5 are mounted axially immovable and are cambered in a suitable manner.
  • the rollers 15 may have a reversed point contour and be arranged axially displaceable. This is in FIG. 14 shown schematically.
  • the corresponding embodiment is also possible if the rolling stock 4 is formed as a slab, the rolling device 5 thus has one or two roughing stands.
  • the rollers 15 - with or without axial displaceability - according to the FIGS. 15 to 17 have a reduced diameter on one side.
  • the diameter reduction can be uniformly linear ( FIG. 15 ), in several sections each linear (polygonal, FIG. 16 ) or non-linear ( FIG. 17 ) be.
  • the FIGS. 16 and 17 In this case, only the respectively relevant part of a single roller 15 show.
  • the corresponding contour can be circular-arc-shaped, for example. Non-circular configurations are also possible. In particular, a clothoid may be advantageous.
  • rollers 15 can be pivoted against each other, so that the axes of rotation of the rollers 15 in each case in a direction parallel to the conveying direction x 'and Walzgutierinraum plane are pivotable, wherein the pivoting movements in opposite directions to each other.
  • the rolling device 5 as a rolling stand with only two rollers 15 - namely the work rolls 15 - is formed.
  • Other rolls which are usually found in rolling mills for flat rolled goods, can omitted.
  • embodiments with more than two rollers 15 are also possible.
  • the rolling device 5 As an alternative to an arrangement of the rolling device 5 in front of the flame cutting machine of the casting device, it is according to FIG. 18 (see also FIG. 1 ) alternatively possible to form the profiling device 5 as a rolling device 5, which is the upstream of the rolling mill 2 or part of the rolling mill 2.
  • the rolling device 5 may in particular be arranged between an input-side furnace 16 -for example a pusher furnace or a walking beam furnace-and the first rolling stand 3 of the rolling mill 2.
  • the rolling device 5 of FIG. 18 apply the above remarks to the FIGS. 13 to 17 in an analogous way.
  • the rolling device 5 may comprise two rolling stands.
  • the profiling device 5, 12, 14 with respect to the concave thickness profile K is designed as a non-controllable device.
  • the profiling device according to FIG. 6 be possible as a continuous casting mold 12, that although the width B of the cast rolled material 4 is adjustable, but neither its thickness D nor the course of the concave thickness profile K are adjustable.
  • it is possible to adjust the concave thickness profile K be it statically before the profiling process for a specific rolling stock 4, be it dynamically during the profiling operation, ie during the impressing of the concave thickness profile K into the respective rolling stock 4
  • the employment of the rollers 15 be adjustable to each other, in the case of FIGS. 14 to 17 in addition to the employment, the axial displacement of the rollers 15 against each other.
  • cooling means for example, locally the profile the rollers 15 are affected. Similar statements apply to an arrangement of the rolling device 5 in front of the flame cutting machine of the casting device and for an arrangement immediately before or in the rolling mill 2. Also controllability is given if the profiling is adjustable by the roller segments 14 of the continuous casting device.
  • the control computer 6 If the profiling device 5 is designed as a controllable with respect to the concave thickness profile K device, the control computer 6 according to FIG. 19 - see supplementary FIG. 1 - Supplied in a step S1 output data of the rolling stock 4 and stitch plan data of the belt 1.
  • the output data of the rolling stock 4 may include, for example, its thickness D, its length L, its width B, its temperature T (possibly also temperature distribution), its chemical composition C, etc.
  • the stitch plan data of the strip 1 may in particular include its nominal dimensions (length 1, width b, thickness d) and implicitly or explicitly reference tongues which the rolled strip 1 should have, the respective stitch decreases, rolling temperatures and rolling forces etc. expected for the individual rolling passes.
  • the control computer 6 is usually supplied with geometric data of the rolling mill 2 (profiles of the rolls of the rolling stands 3, etc.).
  • the control computer 6 determines in a step S2 using a rolling model 17 (see FIG. 1 ) an (ideal) Sollkonkavtician for the flat rolling stock 4.
  • the rolling model 17 may, for example, as an empirical model, as on mathematical / physical equation-based model, be designed as a neural network, etc.
  • the rolling model 17 usually comprises two partial models. In the first part model, the geometric shape of the ends of the resulting strip 1 is determined on the basis of the given shape of the rolling stock 4 in conjunction with the other known data. In the second submodel Based on the geometric shape of the Schopfenden of the resulting strip 1, the required concavity of the rolling stock 4 is determined, which at least approximates the shape of the band 1 of a desired shape.
  • the control computer 6 determines setting parameters P of the profiling device.
  • the determination of the adjustment parameters P is carried out in such a way that a deviation of the resulting concave thickness profile K from the ideal desired concavity is minimized. For example, the mean square error over the rolling stock width B or the maximum error over the rolling stock width B can be minimized.
  • control computer 6 sets the profiling device 5 in accordance with the setting parameters P determined in step S3.
  • steps S2 and S3 are performed uniformly for the entire rolling stock 4.
  • steps S2 and S3 according to FIG. 20 separately for the band tongues 10 on the band head 1 'and on the band foot 1 "and to determine their own adjustment parameters P for the profiling device 5.
  • the control computer 6 varies according to FIG. 20 during the expiration of the rolling stock 4 from the profiling the adjustment parameters P.
  • the concave thickness profile K is seen over the length L of the rolling stock 4 varies.
  • control computer 6 can transfer the setting parameters P linearly or non-linearly from the setting parameters P determined for the tape head 1 'into the setting parameters P determined for the belt foot 1 "during the runout of the rolling stock 4 from the profiling device 5
  • FIGS. 21 to 23 show - purely by way of example - some possibilities for varying the concave thickness profile K.
  • the maximum thickness reduction ⁇ D is linearly reduced from an initial value to 0, then it remains constant in a second section A2 0 and then increases again in a third section A3 until it reaches its final value.
  • the initial value and the end value may be the same or different.
  • the lengths of the first portion A1 and the third portion A3 may be the same or different.
  • FIG. 22 is before the first section A1, a further section A4 available, in which the initial value of the maximum thickness reduction ⁇ D is kept constant.
  • a similar section (in FIG. 22 not shown) may follow the third section A3.
  • FIG. 23 are - analogous to FIG. 22 -
  • the width of the concave thickness profile K decreases toward the second section A2.
  • FIGS. 21 to 23 purely exemplary. There are also other variations possible.
  • the profiling device is designed as a controllable device with respect to the concave thickness profile K, it is preferred to use a corresponding measuring device 18 (see FIG. 1 ) - for example, a multi-line CCD camera - or manually determined after the production of the tape 1 (ie after the last pass) an extent of the tape head 1 'and / or at the tape foot 1 "real band tongues 10, preferably including the contour can - see the FIGS. 19 and 20 the control computer 6 receives the corresponding measured values in a step S5 and determines the extent of the real band tongues 10.
  • the real occurring preferably by the control computer 6, alternatively intellectually by a human Tongue tongues 10 compared with the Sollzache. Based on the comparison, the rolling model 17 is adapted in the context of step S6.
  • Steps S5 and S6 are only optional. They are therefore in the FIGS. 19 and 20 shown only by dashed lines.
  • the production method according to the invention is always usable in principle.
  • the production method according to the invention exhibits its strengths, in particular, when the rolling stock 4 is fed to the rolling mill 2 as a cut-to-length rolled stock 4, seen in length L and width B.
  • the Profilier drove a corresponding separator 19 upstream or downstream, for example, a flame cutting machine or a Schopfschere.
  • the rolling stock 4 is a slab and the band 1 is a preliminary band and in addition the preliminary band is to be reused later as a rolling stock 4 for a further inventive production method, in which the rolling stock 4 is a preliminary band and the band 1 is a finished strip, a corresponding cropping shear may also be arranged on the outlet side of the rolling mill 2.
  • the present invention has significant advantages over the prior art.
  • the scrap content in the production of the strip can be significantly reduced, for example, from about 0.35% to less than 0.1%.
  • the saving of scrap is on the one hand an increase in productivity and on the other a considerable cost and energy minimization connected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
EP12164523.8A 2012-04-18 2012-04-18 Procédé de fabrication pour une bande Withdrawn EP2653241A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12164523.8A EP2653241A1 (fr) 2012-04-18 2012-04-18 Procédé de fabrication pour une bande
PCT/EP2013/057297 WO2013156332A1 (fr) 2012-04-18 2013-04-08 Procédé de fabrication d'une bande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12164523.8A EP2653241A1 (fr) 2012-04-18 2012-04-18 Procédé de fabrication pour une bande

Publications (1)

Publication Number Publication Date
EP2653241A1 true EP2653241A1 (fr) 2013-10-23

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EP12164523.8A Withdrawn EP2653241A1 (fr) 2012-04-18 2012-04-18 Procédé de fabrication pour une bande

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WO (1) WO2013156332A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115608790B (zh) * 2022-11-03 2023-11-10 新余钢铁股份有限公司 防止冷轧带钢边部起筋缺陷的方法及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119256A (en) * 1977-03-28 1978-10-18 Sumitomo Metal Ind Ltd Steel plate rolling method
US4238946A (en) 1977-04-04 1980-12-16 Kawasaki Steel Corporation Method for rolling metal plate
EP0164265A2 (fr) * 1984-06-08 1985-12-11 DAVY McKEE (SHEFFIELD) LIMITED Procédé pour laminer une brame métallique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119256A (en) * 1977-03-28 1978-10-18 Sumitomo Metal Ind Ltd Steel plate rolling method
US4238946A (en) 1977-04-04 1980-12-16 Kawasaki Steel Corporation Method for rolling metal plate
DE2814472C2 (de) 1977-04-04 1985-02-07 Kawasaki Steel Corp., Kobe, Hyogo Verfahren zum Warmwalzen von Grobblech
EP0164265A2 (fr) * 1984-06-08 1985-12-11 DAVY McKEE (SHEFFIELD) LIMITED Procédé pour laminer une brame métallique

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