• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method for producing a thick-profiled metal strip (2) is shown, in which at least one recess (9) is introduced into the metal strip (2) and in a subsequent step the metal strip (2) is at least partially inserted into the metal strip (2) whose width (8) penetrating roller (4) is longitudinally rolled and thus a thickness profiling at least in the width direction (3) of the metal strip (2) is generated. In order to improve the reproducibility of the method, it is proposed that at least one hole (11, 12, 13, 14) passing through the metal strip (2) is introduced into the metal strip (2) as a recess (9) via which the hole is inserted into the metal strip (2) penetrating roller (4) longitudinally rolls the metal strip (2) to produce the thickness profiling in the width direction (3) of the metal strip (2).
    公开号:AT516147A4
    申请号:T50891/2014
    申请日:2014-12-09
    公开日:2016-03-15
    发明作者:Markus Ing Polk
    申请人:Voestalpine Krems Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a method for producing a thickness-profiled metal strip, in which at least one recess is introduced into the metal strip and longitudinally rolled in a subsequent step, the metal strip with at least one in the Metallband over its bandwidth penetrating roller and thus at least one thickness profiling in the width direction of Metal strip is generated.
    In order to be able to form a homogeneous transition between different thicknesses of a metal strip in the preparation direction, it is known from the prior art (WO2012119166A1) to allow at least one circumferential roll or flat roll to penetrate into the metal strip in regions over its bandwidth during longitudinal rolling. In addition, grooves are introduced into the rolling stock or metal strip prior to this pass, which support a material flow in the width direction as a recess in the metal strip and thus counteract material flow in the longitudinal direction of the strip material. Nevertheless, in particular depending on the width of the flat roller, an uneven material flow in the longitudinal direction of the metal strip may result, which can lead to belt waves.
    These belt shafts are intended to avoid the EP976462A2 by using more than one flat roller in the width direction and longitudinally successive profile rollers, namely spinning rollers, which penetrate the metal band in some areas. However, several rollers require an increased design and control effort - and these are usually sensitive to geometric irregularities on the metal strip, which can reduce the Reproduzierbar¬keit the method for thickness profiling.
    It is therefore the object of the invention to provide a method for producing a thick-profiled metal strip of the type described, which is characterized by simplicity and high reproducibility.
    The invention achieves this object by introducing into the metal strip at least one hole passing through the metal strip as a recess via which the roller penetrating into the metal strip rolls the metal strip in order to produce the thickness profiling in the width direction.
    If at least one hole passing through the metal band is inserted into the metal band as a recess over which the roller penetrating into the metal band rolls the metal band longitudinally to produce the thickness profiling in the widthwise direction, the reproducibility of the method can be significantly improved over known methods. Namely, this special material recess in the metal strip can reduce or even interrupt the material flow in the longitudinal direction of the metal strip in the rolling zone, which counteracts uneven longitudinal expansion and thus prevents belt waves. This is also the case when the metal strip is longitudinally rolled in a pass with a comparatively wide rolling range and thus the risk of an uneven material flow over the width of the metal strip or rolling stock is particularly high. In other words, the through-hole in the rolling zone of the roller penetrating into the metal strip is geometrically designed so that the rolling-induced material flow in the longitudinal direction of the metal strip can be reduced and thus the formation of irregularities in the longitudinal extent can be reduced. In addition, the hole in the rolling area can contribute to the compensation of irregularities in the metal strip to be rolled in order to absorb increased material flow, which makes the method according to the invention more tolerant of parameter fluctuations and thus can further increase its reproducibility.
    In general it is mentioned that advantageously the volume excluded from the holes in the metal band at least corresponds to the material volume which flows in the longitudinal direction of the metal band due to the longitudinal rolling.
    A through hole can be procedurally relatively easily introduced into the metal strip when it is punched into the metal strip.
    If at least one row of holes with a plurality of through holes is introduced in the longitudinal direction of the metal strip, tape shafts can be reliably avoided even over a relatively long metal strip. Namely, these repeating holes can successively equalize a material longitudinal flow along the forming area, which may open up the possibility of reshaping the metal strip accordingly in one stitch. A continuous longitudinal rolling for producing a thickness-profiled metal strip, at least in the width direction, can thus be made possible, which can be used, for example, in an in-line method. In addition, a row of holes may allow a relatively high degree of deformation of the metal sheet to accelerate the process, for example, by increasing the strip tension speed.
    To reduce the hole diameter of the holes can contribute if at least two through holes of a row of holes in the width direction of the metal strip offset are introduced into the metal strip. Such a reduced hole diameter, for example, at the rolled hole füh¬ren to a small gap, which can subsequently facilitate a subsequent cohesive joining of durchge through hole.
    The distances between successive, continuous holes of a row of holes can be different in order to utilize the material flow in the longitudinal direction in a targeted manner for rolling-related closing of the through holes.
    It may also be advantageous for roll-related closing of the through holes when holes with different cross-sectional shapes are introduced into the metal strip.
    If the longitudinal pitch t between the successive, continuous holes is greater than twice the hole width w of the consecutive holes 13 and less than five times the hole width w of the successive holes, a procedural regulation that is easy to handle can be used to avoid belt waves.
    The process conditions can be further simplified when the metal strip is cold rolled.
    Through holes in the metal strip can be provided quickly and cost-effectively if a circular hole and / or a slot is introduced into the metal strip.
    In particular, the method according to the invention may be distinguished when the rolling method is set such that the through hole substantially closes after longitudinal rolling.
    An inserted into the metal strip through hole can procedurally simply be closed again by the hole longitudinally closed by joining material fit.
    If the roller deeply penetrates into the metal strip at most two-thirds of the initial thickness of the metal strip, a simple procedure for avoiding belt waves during thickness profiling of the metal strip can be given.
    The thick-profiled metal strip according to the invention can be particularly distinguished when a circuit board is separated therefrom.
    In the figures, for example, the subject invention using an exemplary Ausfüh¬ tion is shown in more detail. Show it
    1 is a plan view of a production line for carrying out a method for the production of a thick-profiled metal strip,
    Fig. 2 shows a section according to ll-ll of Fig. 1 undFig. 3 is a detail view of FIG. 1.
    1 is a plan view of a continuous rolling train 1, in which a metal strip 2 consisting of, for example, a steel material is thick-profiled, in its width direction 3. For this purpose, a roller 4 with two cylindrical sections 5, 6 is provided intended. The roller 4 is designed as a flat longitudinal roller. Not shown in detail but generally conceivable is, for example, instead of providing such a flat longitudinal roller successively two flat longitudinal rollers each with only one cylindrical section. The flat longitudinal roller 4 cooperates with a counter roller 7 for forming the roller nips. wherein the metal strip 2 is longitudinally rolled by the roll 4 penetrating over its strip width 8, namely at two adjacent rolling zones 50, 60. As can be seen in particular in FIG. 2, in these cold-rolled rolling zones 50, 60 The maximum dimension is according to the invention that the roller 4 penetrates deeply into the metal strip 2 ma¬ximal two thirds of the initial thickness 20 of the metal strip 2. In addition, the metal strip 2 recesses 9 on the roller 4 facing Breitsei¬te 10, which are already to be found on the metal strip 2 before the longitudinal rolling.
    According to the invention, these recesses 9 are formed as holes 11, 12, 13, 14 passing through the metal strip 2, in that they are introduced into the metal strip 2 before its longitudinal rolls in a simple manner by means of a separation process. As a result, a material flow of the material of the metal strip 2 in the longitudinal direction 15, which can occur during the longitudinal rolling of a material band 2, can be reduced. An uneven longitudinal flow over the bandwidth 8 is thus avoided, which stably prevents tape waves. The method according to the invention for the production of the thickness-profiled metal strip 2 is thereby particularly well reproducible.
    In general, it is mentioned that the recesses 9 can have any hole shape. For example, round holes 11, 12 and a slot 14 are shown in FIG. 1 - any cross-sectional shapes, for example an oblong-shaped, polygonal, rectangular, square, etc., cross-sectional shape can be imagined as required or required.
    These recesses 9 are punched into the metal strip 2 - procedurally simple - before the longitudinal rolls. This will be done with an indicated punching tool 180 with punch and cooperating die, which is upstream of the roll 4 in the tape drawing direction 17.
    As shown in FIG. 1 further, the recesses 9 are provided in the metal band 2nacheinander, whereby two rows of holes 18, 19 form. For this purpose, with the punching tool 180, with two associated punches to the two holes 18, 19 each have a plurality of through holes 11, 13 and 12, 14, which are arranged correspondingly in the longitudinal direction of the metal strip 2 successively, punched together.
    As can be seen in FIG. 1 at the row of holes 18 formed by holes 11, 13 following one another in the longitudinal direction, the following circular holes 13 arranged lengthwise in the longitudinal direction are arranged offset in the width direction 3 of the metal strip 2. Thus, the surface of the circular holes 13 may be smaller compared to the surface of the preceding hole 11 and nevertheless a continuous material flow in the longitudinal direction of the metal sheet 2 is interrupted. This in particular because these offset holes 13 overlap in the longitudinal direction of the metal sheet 2 , In addition, the head web width c or the Ab¬ states between the circular holes 13 are preferably equidistant or diebezügliche hole pitch is the same.
    The head land width c between successive through holes 12, 14 of the second row of holes 19 varies or is different, as can be seen in the comparison of the distances between two holes 12 and between the holes 12 and 14.
    As can be seen further in FIG. 1 in the strip tensioning direction 17 after the roller 4, the roller method is set such that the through hole 11, 12, 13, 14 substantially closes after the longitudinal rolling. This facilitates a material-locking joining subsequent to the longitudinal rolling and leads to a stable weld seam 21. Instead of the illustrated welded seam 21, a weld point can also be imagined, which has not been described in detail.
    According to FIG. 3, the characteristics of the rows of holes 18, 19 are shown in more detail in detail. For this purpose, it is generally mentioned that the longitudinal pitch t as the center distance in the longitudinal direction between adjacent holes 11, 13 or 12, 14, the hole width is one diameter of a circular hole 11, 12, 13 or the smaller opening dimension of a different shaped hole, 14, For example, a slot, is understood - in contrast, the hole length I as the longer opening dimension of the hole 14 applies.
    As can be seen in FIG. 3 with regard to the fans 13, the longitudinal pitch t between the successive through holes 13 is greater than twice the hole width w of the holes 13 and smaller than five times the hole width w of the holes 13. Thus, tape shafts are in the case of thickness profiling of the metal strip However, this provision is also applicable to the other holes 11,12 and 14 without Weite¬res, but this has not been shown in detail.
    权利要求:
    Claims (13)
    [1]
    1. A method for producing a thick-profiled metal strip (2), in which at least one recess (9) introduced in the metal strip (2) and in a subsequent step, the metal strip (2) with at least one in the metal strip (2) partially over its bandwidth (8) penetrating roller (4) along roller and thus a thickness profiling at least in the width direction (3) of the metal strip (2) is generated, characterized in that in the metal strip (2) at least one by the metal strip (2 ) is inserted through the hole (11, 12, 13, 14) as an recess (9) over which the metal strip (2) penetrates the metal strip (2) in order to control the thickness profiling in the width direction (3) of the strip To produce metal bands (2).
    [2]
    2. The method according to claim 1, characterized in that the hole (11,12,13,14) is punched in the metal strip (2).
    [3]
    3. The method according to claim 1 or 2, characterized in that in the longitudinal direction (15) of the metal strip (2) at least one row of holes (18, 19) with mehrerendurchgehende holes (11, 13 and 12, 14) is introduced.
    [4]
    4. The method according to claim 3, characterized in that at least two holes (13) of a row of holes (18) in the width direction (3) of the metal strip (2) offset in the metal strip (2) are introduced.
    [5]
    5. The method according to claim 3 or 4, characterized in that the Kopf¬stegbreite (c) between successive, continuous holes (12, 14) of a row of holes (19) are different.
    [6]
    6. The method according to claim 3, 4 or 5, characterized in that the longitudinal pitch (t) between the successive through holes (13) greater than twice the hole width (w) of successive holes (13) and smaller than five times the hole width ( w) of the successive holes (13).
    [7]
    A method according to any one of claims 1 to 6, characterized in that holes (11, 12, 13, 14) having different cross-sectional shapes are introduced into the metal strip (2).
    [8]
    A method according to any one of claims 1 to 7, characterized in that the metal strip (2) is cold rolled.
    [9]
    9. The method according to any one of claims 1 to 8, characterized in that a circular hole (11, 12, 13) and / or a slot (14) in the metal strip (2) is introduced.
    [10]
    A method according to any one of claims 1 to 9, characterized in that the rolling process is adjusted such that the through hole (11, 12, 13, 14) substantially closes after longitudinal rolling.
    [11]
    11. The method according to any one of claims 1 to 10, characterized in that after the longitudinal rolling the hole (11, 12, 13, 14) is cohesively closed by joining.
    [12]
    12. The method according to any one of claims 1 to 11, characterized in that the roller (4) in the metal strip (2) penetrates a maximum of two thirds of the initial thickness (20) of the metal strip (2) deep.
    [13]
    A board separated from a thickness-profiled metal strip (2) produced by a method according to any one of claims 1 to 12.
    类似技术:
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    同族专利:
    公开号 | 公开日
    AT516147B1|2016-03-15|
    US20170348746A1|2017-12-07|
    EP3229991B1|2020-08-05|
    EP3229991A1|2017-10-18|
    WO2016090399A1|2016-06-16|
    US10618090B2|2020-04-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3622926A1|1985-08-28|1987-03-12|Dowa Mining Co|CONTINUOUS MULTI-STAGE ROLLING MILL|
    JPH06234A|1992-06-23|1994-01-11|Daiwa Golf Kk|Golf club shaft and manufacture thereof|
    JPH0973103A|1995-06-30|1997-03-18|Canon Inc|Display device and its production|
    DE19748321A1|1996-10-31|1998-05-07|Hitachi Cable|Material manufacturing process for transistor conductor frame/system carrier|
    DE10113610A1|2001-03-20|2002-10-02|Reiner Kopp|Production of a thick profiled one-piece rolling stock used in the production of sheet metal comprises deforming the starting material widthwise using rollers which penetrate into the starting material forming a three-dimensional profile|
    EP1430973A1|2002-12-18|2004-06-23|Protektorwerk Florenz Maisch GmbH & Co. KG|Embossing process, embossing tool and profiled element|
    DE102006024775A1|2006-05-27|2007-11-29|Sms Demag Ag|Mill stand for rolling a metal strip comprises cylindrical partial rolls with partial roll gaps having different sizes|
    FR2515541B1|1981-10-30|1985-05-10|Griset Ets|
    JPS6239602Y2|1982-11-06|1987-10-09|
    JPS606234A|1983-06-27|1985-01-12|Kobe Steel Ltd|Rolling method of irregular shaped metallic plate|
    US5351397A|1988-12-12|1994-10-04|Olin Corporation|Method of forming a nucleate boiling surface by a roll forming|
    DE19831882A1|1998-07-17|2000-01-20|Schloemann Siemag Ag|Method and rolling installation for producing arbitrary thickness profile over width of metal strip involves several pressure rolls which are staggered in rolling direction and adjusted to vary penetration into initial material|
    DE10156087B4|2001-11-16|2005-06-02|Müller Weingarten AG|Device for processing a metal strip with different thicknesses|
    AT510957B1|2011-03-10|2012-08-15|Voestalpine Krems Gmbh|METHOD AND DEVICE FOR PRODUCING A METALLIC TAPE|ITUB20160442A1|2016-02-04|2017-08-04|Fiat Ricerche|PROCEDURE FOR THE LAMINATION OF METAL SHEETS WITH VARIABLE THICKNESS|
    法律状态:
    2021-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20201209 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50891/2014A|AT516147B1|2014-12-09|2014-12-09|Method for producing a thickness-profiled metal strip|ATA50891/2014A| AT516147B1|2014-12-09|2014-12-09|Method for producing a thickness-profiled metal strip|
    PCT/AT2015/050310| WO2016090399A1|2014-12-09|2015-12-09|Method for producing a thickness-profiled metal strip|
    US15/534,474| US10618090B2|2014-12-09|2015-12-09|Method for producing a thickness-profiled metal strip|
    EP15825906.9A| EP3229991B1|2014-12-09|2015-12-09|Method for producing a thickness-profiled metal strip|
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