EP3370916B1 - Procédé et dispositif de production d'une surface homogène rectifiée d'une bande métallique - Google Patents

Procédé et dispositif de production d'une surface homogène rectifiée d'une bande métallique Download PDF

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Publication number
EP3370916B1
EP3370916B1 EP16793801.8A EP16793801A EP3370916B1 EP 3370916 B1 EP3370916 B1 EP 3370916B1 EP 16793801 A EP16793801 A EP 16793801A EP 3370916 B1 EP3370916 B1 EP 3370916B1
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EP
European Patent Office
Prior art keywords
grinding
belt
metal belt
ground
metal strip
Prior art date
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EP16793801.8A
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German (de)
English (en)
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EP3370916A1 (fr
Inventor
Herbert BLOCHBERGER
Roland Schuster
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Berndorf Band GmbH
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Berndorf Band GmbH
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Priority to SI201630962T priority Critical patent/SI3370916T1/sl
Publication of EP3370916A1 publication Critical patent/EP3370916A1/fr
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Publication of EP3370916B1 publication Critical patent/EP3370916B1/fr
Priority to HRP20201814TT priority patent/HRP20201814T1/hr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/005—Portal grinding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • B24B7/13—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work grinding while stock moves from coil to coil

Definitions

  • the invention relates to a method for the production of a metal strip, in which the metal strip is ground in several passes at least on one side over essentially the entire surface.
  • the invention also relates to a device for the production of a metal strip, which comprises two rollers or two reels for holding and moving the metal strip, as well as a grinding device for grinding the metal strip in several passes at least on one side and on essentially the entire surface.
  • methods and devices for grinding metal strips are known from the prior art.
  • Such metal strips are produced for specific purposes with a very high surface quality and are usually ground or even polished to a high gloss.
  • the metal strips are used, for example, for the production of plate-shaped or film-like materials, in particular for films for photography, LCD screens or for engineered stone.
  • a liquid or pasty material is applied to a driven / moving belt and the at least partially solidified material is lifted off.
  • the surface quality of the product manufactured with such a metal strip depends directly on the surface quality of the metal strip.
  • the closest prior art WO-A-2014/165891 describes a method for the production of a metal belt, which can be used for the production of plate-shaped or film-like materials, in which the metal belt is ground in several passes on one side over the entire surface, the grinding process taking place on the endless, closed metal belt.
  • the problem here is that a sufficiently homogeneous surface of the metal strip can only be produced with difficulty using conventional grinding processes.
  • Such belts sometimes have an area of several hundred square meters that have to be ground.
  • a homogeneous grinding pattern over the entire surface of the belt is difficult to achieve.
  • the products manufactured with this metal strip also do not have a uniform surface.
  • the metal strip should be ground in such a way that a homogeneous strip surface is created in order to be able to meet the above requirements.
  • the final grinding pass is started with an aged or worn grinding medium and carried out entirely with an aged or worn grinding medium.
  • the proposed measures achieve a particularly flat and high-quality surface of the metal strip. In doing so, one makes use of the fact that an aged or already worn grinding medium shows only a slight degradation and the grinding result is only subject to a slight change for a long time. In contrast to this, for a high-quality grinding result in the state of the art mostly new and unused grinding media are used. However, this procedure only leads to success or a homogeneous sanding pattern with relatively small surfaces to be sanded. In the case of large areas, however, the abrasion of the grinding particles, which is particularly large with a new grinding medium, comes into play. Points and sharp edges on the abrasive grains are rounded relatively quickly, but the rounded grinding edges remain for a comparatively long time. With the same grain size, a used abrasive medium can produce a significantly more homogeneous and smoother sanding pattern than a new abrasive medium.
  • the purpose of the grinding can for example be to grind the metal strip to a certain thickness and / or to ensure a certain thickness uniformity and / or to produce a certain surface quality.
  • a tolerance band for the thickness of the metal strip can be +/- 100 ⁇ m around a certain nominal dimension, whereas the tolerance for the thickness uniformity is only +/- 25 ⁇ m.
  • the thickness of the metal strip should therefore be within both tolerance bands at every point.
  • the surface quality can be defined, for example, by the surface roughness and / or the degree of gloss.
  • the surface roughness is usually specified in ⁇ m, whereby the specification can denote the mean roughness, square roughness or mean roughness depth.
  • the invention relates not only to bonded abrasive media, but also to loose abrasive particles.
  • the invention therefore also relates to grinding pastes in which grinding particles are present, for example, in an aqueous or oily solution.
  • Essentially the entire area” in the context of the invention denotes in particular a proportion of at least 90% of the entire surface of one side of the tape. Smaller areas can be excluded from processing, for example the area around a weld seam to connect the ends of the belt in an endless belt. Of course, the process is not limited to grinding one side of the belt, but both sides of the belt can also be ground.
  • the metal strip is ground in a final grinding pass with a grinding medium that exhibits minimum wear. This avoids that the degradation of the grinding medium is too severe.
  • the metal strip is ground in a final grinding pass until the grinding medium is worn to the maximum. In this way it is ensured that the grinding medium still has a sufficiently strong removal rate or a sufficiently long remaining service life.
  • the wear and tear of the grinding medium can be determined in various ways.
  • the wear and tear can be determined on the basis of the service life of the grinding medium. It is also conceivable that the wear is determined on the basis of the number of grinding cycles, that is, how often an abrasive grain is in contact with the metal belt.
  • Another influencing factor is the cycle engagement time, i.e. the period of time during which an abrasive grain is in engagement with the metal belt in one cycle.
  • a very similar influencing factor is the cycle path of engagement, i.e. the path length that an abrasive grain is in engagement with the metal belt in one cycle.
  • the contact pressure of the grinding medium on the metal belt also has an influence on the wear and tear of the grinding medium.
  • Natural grain materials (quartz, corundum, emery, garnet, natural diamond) and synthetic grain materials (corundum, silicon carbide, chromium oxides, cubic boron nitride, diamonds) are generally suitable for the abrasive particles.
  • the final grinding pass is carried out with a hard-bonded grinding medium.
  • abrasive media With this type of abrasive media, the abrasive particles remain in the matrix in which they are embedded for a comparatively long time. Therefore, the rounded edges of the abrasive particles also remain effective long before the abrasive particles break out and new abrasive particles with points and sharp edges are exposed.
  • the belt surface becomes particularly homogeneous with these grinding media.
  • soft grinding media is also conceivable.
  • the processing time is advantageously kept short and steps in the belt surface after a change of the grinding medium are prevented.
  • the final grinding pass is carried out with several aged or already used grinding media. In this way, the influence of the degradation of the grinding media can be further reduced. This procedure is particularly suitable for grinding particularly large metal strips.
  • an oscillating movement in the transverse direction can be superimposed on a feed in the longitudinal direction, or the movement takes place in stages, that is, a feed in the longitudinal direction does not take place until the movement in the transverse direction has been completed.
  • the transverse grinding and longitudinal grinding take place simultaneously at points offset in the longitudinal direction of the metal strip.
  • a longitudinal grinding device is arranged in the feed direction behind a transverse grinding device. This procedure enables the metal strip to be produced particularly quickly.
  • the transverse grinding and longitudinal grinding take place one after the other.
  • the cross grinding and the longitudinal grinding are decoupled from each other, which means that the grinding result can be influenced in a very targeted manner.
  • the device for the production of a metal strip has a grinding wheel or grinding roller, or if the metal strip is ground with a grinding wheel or grinding roller. It is also advantageous if the device for the production of a metal belt has a grinding belt, or if the metal belt is ground with a grinding belt.
  • the abovementioned grinding media are particularly well suited for the abovementioned purpose because they have a long service life and thus enable efficient and dimensionally accurate grinding.
  • the belt surface can be homogenized / leveled with a relatively low grinding pressure.
  • grinding wheels / grinding rollers or grinding belts can be used for this purpose, which touch the belt surface along a line.
  • the grinding medium touches the metal belt on a surface, or if the contact between the metal belt and the grinding medium occurs on a surface during grinding.
  • the strip surface can be homogenized or leveled particularly well.
  • Abrasive belts that lie flat on the metal belt are particularly suitable for this purpose.
  • the metal strip is ground over the entire strip width. In this way, a particularly flat surface of the metal strip can be produced. It is particularly advantageous if the longitudinal grinding takes place over the entire bandwidth.
  • the metal strip is ground in an area that is smaller than the entire strip width. This allows the grinding process to take place in a very differentiated manner. For example, a comparatively high amount of removal can take place in a width region of the metal strip, whereas in another width region of the metal strip a rather low removal rate takes place.
  • the grinding process takes place on the endless, closed metal belt.
  • the grinding processes can be carried out in several passes.
  • the cross grinding can be carried out in several passes or the longitudinal grinding.
  • the grinding process can take place in a tightly limited space even with long belts, for example in that the belt to be ground is unwound from one reel and the ground belt is reeled onto another reel.
  • the sanding belt can also be laid flat without the use of reels.
  • the metal strip is sanded dry. In this way, the resulting grinding dust can be easily extracted.
  • the metal strip is ground wet or with the aid of a lubricant. This prevents the creation of grinding dust.
  • the grinding medium is kept largely free of deposits and the processing point is cooled.
  • petroleum, oil or water can be used as a lubricant for wet grinding.
  • the stock removal rate with wet sanding is usually higher than with dry sanding.
  • Fig. 1 shows an exemplary and purely schematically represented plant for the production of a metal strip in side view
  • the Fig. 2 in plan view.
  • Figures 1 and 2 a metal belt 1, which is designed as an endless belt and is guided around two rollers 2 and 3, of which at least one is driven.
  • a grinding roller 4 is shown.
  • the metal strip 1 can be ground transversely to its longitudinal extension.
  • the grinding roller 4 is used for this purpose, the grinding direction (not the feed direction) is designated by "B". This movement is brought about by rotation of the grinding roller 4 about a horizontal axis aligned along the metal strip 1.
  • the metal strip 1 is moved in the "C" direction with the aid of the rollers 2 and 3 and thus causes a longitudinal feed during cross grinding.
  • a feed in direction D transversely to the longitudinal direction of the metal strip 1.
  • the welding area can be ground flat with the grinding roller 4.
  • an oscillating movement in the transverse direction D is superimposed on the feed in the longitudinal direction C, for example with a triangular, sawtooth or sinusoidal profile.
  • the movement in direction D can also take place in stages.
  • a feed in the longitudinal direction C does not take place until the movement in the transverse direction D has been completed.
  • the metal strip 1 is thus stopped.
  • Cross-grinding can take place over the entire bandwidth or, for example, also be limited to a region that is smaller than the entire bandwidth, which is in the Fig. 2 is labeled "E".
  • Fig. 3 shows a further exemplary and purely schematically illustrated system for the production of a metal strip 1 in side view, the Fig. 4 in plan view.
  • the system in turn comprises a metal belt 1, which is designed as an endless belt and is guided around two rollers 2 and 3, at least one of which is powered.
  • a belt grinding device is shown which comprises three pulleys 5, 6 and 7 and a grinding belt 8.
  • a counter-plate 9 for supporting the metal strip 1 is also shown (Note: The sensor 10 and the electronic evaluation or alarm unit 11 are used in the context of the Fig. 5 explained).
  • a support roller could also be provided, or the grinding could in principle also take place without a counter plate 9 or support roller. The same applies to those in the Figs. 1 and 2 illustrated system. There, too, the grinding can take place with a counter-plate 9 or a support roller.
  • the metal strip 1 is ground in its longitudinal direction.
  • the belt grinding device 6..8 is used for this purpose, the grinding direction (not the feed direction) being designated by "F".
  • the metal strip 1 is moved in the "C” direction with the aid of the rollers 2 and 3 and thus causes a longitudinal advance during longitudinal grinding.
  • the grinding roller 4 is used for the transverse grinding of the metal strip 1, and the grinding belt 8 for the longitudinal grinding. however, this is not the only option. It is of course also conceivable that the transverse grinding takes place with the grinding belt 8 or that the longitudinal grinding takes place with the grinding roller 4. In particular, it is generally also conceivable to use a grinding wheel instead of the grinding roller 4, the main difference between which and the grinding roller 4 is the larger diameter / width ratio. The grinding pressure is reduced by the smaller contact surface, which promotes high removal rates.
  • Fig. 5 shows schematically the relationship between the roughness R of the grinding medium 4, 8 and the wear A of the grinding medium 4, 8.
  • the initial roughness R0 for a new grinding medium 4, 8 (wear A0) is comparatively high and decreases rapidly.
  • the roughness R then decreases less and less. That is, at the beginning the abrasive particles of the abrasive medium 4, 8 sharp points and edges that are rounded relatively quickly. Although these rounded edges do not enable such a high removal rate, they have a comparatively long service life or are subject to relatively little degradation.
  • the wear of the grinding medium 4, 8 can be determined in various ways.
  • the wear A can be determined on the basis of the duration of use of the grinding medium 4, 8. It is also conceivable that the wear A is determined on the basis of the number of grinding cycles, that is, how often an abrasive grain is in contact with the metal strip 1.
  • Another influencing factor is the cycle engagement time, that is to say the time span during which an abrasive grain is in engagement with the metal belt 1 in one cycle.
  • a very similar influencing factor is the cycle path of engagement, that is to say the path length which an abrasive grain is in engagement with the metal belt 1 in one cycle.
  • the contact pressure of the grinding medium 4, 8 on the metal belt 1 also has an influence on the wear and tear on the grinding medium.
  • the metal strip 1 is ground in a final grinding pass with a grinding medium 4, 8 that has a minimum amount of wear. This avoids that the degradation of the grinding medium 4, 8 in the final grinding process is too severe.
  • the minimum wear can be defined by the value A1.
  • the metal strip 1 is ground in a final grinding pass up to a maximum wear of the grinding medium 4, 8.
  • the maximum wear can be defined by the value A2.
  • the device shown comprises exemplary means for determining an age or wear of the grinding belt 8 and for outputting an alarm if the grinding belt 8 does not correspond to a predetermined age or a predetermined amount of wear in a final grinding pass.
  • a sensor 10 and an electronic evaluation or alarm unit 11 are provided in the example shown.
  • the sensor 10 can be designed as a displacement sensor or rotary encoder or revolution meter.
  • the wear of the abrasive belt 8 can then be specified, for example, as the product of the cycle path of engagement and the number of cycles, the cycle path of engagement essentially corresponding to the horizontal distance between the two rollers 5 and 6 and the number of cycles indicating how often a certain point of the grinding belt 8 traverses or passes this cycle engagement path.
  • the engagement force and / or a factor can also be used to determine the wear on the grinding belt 8.
  • the cycle engagement time i.e. the time that a certain point on the grinding belt 8 needs to pass the cycle engagement path
  • simply the operating time of the grinding belt 8 can be used to determine the wear.
  • the sanding belt 8 used for the final sanding step does not correspond to a certain specification, that is, if the wear A is not in a range between A1 and A2, for example, the machine operator is notified. It is also conceivable that an upper limit between A1 and A2, but close to A1, is used to determine the suitability of the grinding belt 8 for the final grinding step in order to ensure a certain remaining service life of the grinding belt 8.
  • the contact between the metal belt 1 and the grinding medium 4 takes place on a line, as in FIG Figures 1 and 2 is shown.
  • grinding belts 8 can also be used for this purpose, which touch the belt surface along a line (see also Figures 8 and 9 ).
  • the line contact allows the metal strip 1 to be removed in a particularly targeted manner with a relatively low grinding pressure.
  • the Figures 6 and 7 now show a further arrangement for grinding a metal strip 1 ( Fig. 6 Side view, Fig. 7 Top view).
  • This includes both a grinding roller 4 for cross-grinding the metal strip 1 and a belt grinding device 6..8 for longitudinally grinding the metal strip 1.
  • the to the Figures 1 to 4 What has been said also applies accordingly to those in the Figures 6 and 7 illustrated device.
  • the metal strip can be ground transversely and lengthways. In the configuration shown, cross sanding takes place before longitudinal sanding. In principle, however, it is also possible to grind the metal strip 1 first longitudinally and then across.
  • FIG. 6 and 7 Another feature of using the Figures 6 and 7 The method shown consists in that a wider grinding medium 8 is used for the longitudinal grinding than for the transverse grinding. As a result, a relatively high removal rate can be achieved with a comparatively low grinding pressure during transverse grinding, whereas the surface of the metal strip 1 is well leveled out by the wide grinding belt 8 during longitudinal grinding (however, see also FIG Figures 8 and 9 ).
  • the transverse grinding and longitudinal grinding can take place simultaneously at points offset in the longitudinal direction of the metal strip 1.
  • the grinding roller 4 and the grinding belt 8 are activated at the same time.
  • the metal strip 1 can be manufactured particularly quickly by this procedure.
  • transverse grinding and longitudinal grinding take place one after the other, that is to say that the grinding roller 4 and the grinding belt 8 are not active at the same time.
  • transverse loops and longitudinal loops you can influence the grinding result in a targeted manner.
  • the Figures 8 and 9 now show an embodiment variant, which is in the Figures 6 and 7
  • the variant shown is basically very similar.
  • a single belt grinding device 5..8 is now used for the longitudinal grinding and the transverse grinding.
  • the Figures 8 and 9 show the device in the position for longitudinal grinding.
  • the belt grinding device 5..8 can, however, be rotated by 90 ° around its vertical axis in this variant (see the double arrow in Fig. 9 ) whereby only a single grinding device 5..8 is required for cross grinding and longitudinal grinding.
  • two separate belt grinding devices 5..8 can also be provided, which are rotated by 90 ° with respect to one another.
  • cross feed in direction D this applies to Figures 1 and 2 Said accordingly.
  • the cross feed can be oscillating (eg triangular, sawtooth or sinusoidal) at the same time as the longitudinal feed in direction C, or one after the other.
  • the grinding belt 8 touches the metal belt 1 both during transverse grinding and longitudinal grinding along a line. It is also conceivable, however, that a contact between the grinding belt 8 and metal belt 1 is provided on a surface for longitudinal grinding, as was already the case in FIG Figures 3 and 4 is shown. This can be achieved by providing two separate belt grinding devices 5..8 which are rotated by 90 ° about their vertical axis against each other, with the belt grinding device 5..8 only resting with the roller 5 (line contact) and the Belt grinding device 5..8 intended for longitudinal grinding as in Figures 3 and 4 is arranged (surface contact).
  • a single belt grinding device 5..8 can be rotated not only by 90 ° around the vertical axis, but also around the axis of the roller 5 (here by 60 °), so that it is possible to switch between line contact and surface contact.
  • two separate belt grinding devices 5..8 it is also possible to use grinding belts 8 of different widths for longitudinal grinding and cross grinding. In principle, it is also conceivable to provide surface contact between the grinding belt 8 and the metal belt 1 during transverse grinding.
  • FIGS 10 and 11 show another variant, which is similar to the variants shown so far.
  • a grinding wheel 12 is used for transverse grinding
  • a grinding roller 4 is used for longitudinal grinding.
  • cross grinding and longitudinal grinding is also conceivable with a single grinding roller 4 that can be rotated 90 ° about its vertical axis (cf. Figures 8 and 9 ).
  • the Figures 12 and 13 also show a variant in which the grinding process takes place on the open belt 1. Specifically, the band 1 to be ground is unwound from a reel 13 and the ground band 1 is reeled onto another reel 14. In this way, the grinding process can take place in a very limited space even with long belts 1. Of course, all of the design variants mentioned so far can also be used for grinding on the open belt 1. Of course, a metal strip 1 that has just been laid on (and not wound up) can also be ground in the specified manner.
  • FIGS 14 and 15 show an example in which a belt grinding device 6..8 are attached to a portal frame 15 which can be moved along the metal belt 1 with the aid of wheels 16 and rails 17. In this way, in particular an (open) and flatly spread metal belt 2 can be edited. What has been said for the preceding example also applies accordingly to this device.
  • the portal structure is not mandatory, but the grinding of the metal strip 1 can also be carried out by an articulated arm robot (industrial robot) or by several such robots.
  • the portal frame 15 and / or articulated arm robot can also be used in connection with the processing of endless metal strips 1 or metal strips 1 that have been reeled out / reeled on.
  • a relative movement between a grinding device and the metal band 1 can then take place in particular by moving the portal frame 15 / articulated arm robot and / or by moving the metal band 1.
  • the metal strip 1 can be ground in sections, in that the relative movement between the metal strip 1 and the portal frame 15 during grinding occurs exclusively by moving the portal frame 15 and then the metal strip 1 is moved on to the next grinding section.
  • a weld seam 18 is also explicitly shown, with the aid of which several parts are connected to form a metal strip 1.
  • This can be sanded lengthways with the belt sanding device 6..8.
  • a separate device for cross grinding is provided on the portal frame 15 (see e.g. Figures 6 and 7 ), it can in particular be provided that the metal strip 1 is ground in the seam region G of the weld seam 18 transversely and thus along the weld seam 18. In this way, the weld seam 18 can be removed in a very targeted manner. The metal strip 1 can then be ground lengthways.
  • weld seam 18 is cross-sanded with the belt sanding device 6..8 if this is carried out as in FIGS Figures 8 and 9 is designed to be rotatable. Similar considerations naturally also apply to a weld seam with which a metal band 1 is welded together to form an endless band.
  • the individual grinding processes can generally be carried out in several passes.
  • the transverse grinding can be carried out in several passes and the subsequent longitudinal grinding as well.
  • the manufacturing method has been explained using a metal strip 1, the weld seam 18 of which is aligned in the transverse direction, the method presented can of course also be applied to longitudinally running weld seams. This can also be sanded first across and then lengthways.
  • the final grinding pass is carried out with a hard-bonded grinding medium 4, 8, 12.
  • a hard-bonded grinding medium 4, 8, 12 With this type of grinding media 4, 8, 12, the grinding particles remain in the matrix in which they are embedded for a comparatively long time. Therefore, the rounded edges of the abrasive particles also remain effective long before the abrasive particles break out and new abrasive particles with points and sharp edges are exposed.
  • the belt surface 1 becomes particularly homogeneous with these grinding media.
  • the use of soft grinding media 4, 8, 12 is also conceivable.
  • Natural grain materials (quartz, corundum, emery, garnet, natural diamond) and synthetic grain materials (corundum, silicon carbide, chromium oxides, cubic boron nitride, diamonds) are generally suitable for the abrasive particles.
  • the final grinding pass is carried out with a single grinding medium 4, 8, 12.
  • the processing time is advantageously kept short, and steps in the belt surface after changing the grinding medium 4, 8, 12 are prevented.
  • the final sanding pass can be carried out using the Figures 3 and 4 device shown take place in such a way that a used grinding belt 8 is inserted into the belt grinding device 5..7 or is already located there and the metal belt 1 is moved around once, that is, one cycle is carried out. The grinding belt 8 is not changed.
  • the final grinding pass is carried out with several aged or already used grinding media 4, 8, 12. In this way, the influence of the degradation of the grinding media 4, 8, 12 can be further reduced.
  • This procedure is particularly suitable for grinding particularly large metal strips 1.
  • the final grinding pass can be carried out with the aid of the Figures 3 and 4 shown device take place in such a way that a used grinding belt 8 is inserted into the belt grinding device 5..7 or is already there and part of the metal belt 1 is ground. Another used grinding belt 8 is then inserted, and a further part of the metal belt 1 is ground. This process is repeated until the entire surface of the belt has finally been sanded.
  • the abrasive belts used advantageously have the same or approximately the same wear A.
  • a final grinding step can also be carried out with a grinding roller 4 or a grinding wheel 12.
  • What has been said about the grinding belt 8 can also be applied accordingly to the grinding roller 4 or a grinding wheel 12.
  • the metal strip 1 can be ground dry or wet. With dry sanding, the sanding dust that arises can be easily extracted, with wet sanding the formation of sanding dust is prevented at all.
  • the grinding medium 4, 8, 12 is kept largely free of deposits and the processing point is cooled.
  • petroleum, oil or water can be used as a lubricant for wet grinding.
  • the exemplary embodiments show possible design variants of a manufacturing method for a metal strip 1, whereby it should be noted at this point that the invention is not restricted to the specifically shown design variants of the same, but rather various combinations of the individual design variants with one another are possible and this possible variation due to the Teaching for technical action through objective invention within the ability of the person skilled in this technical field lies. All conceivable design variants that result from combinations of individual details of the embodiment variant shown and described are therefore also possible.
  • the devices shown can in reality also include more or fewer components than shown and are sometimes shown in a greatly simplified manner in the figures.
  • loose grinding media for example grinding pastes, can also be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Coating By Spraying Or Casting (AREA)

Claims (17)

  1. Procédé pour la fabrication d'une bande métallique (1), qui peut être utilisée pour la fabrication de matériaux en forme de plaques ou en forme de films, dans lequel la bande métallique (1) est poncée en plusieurs passages au moins sur un côté sur globalement toute la surface, dans lequel le processus de ponçage a lieu sur la bande métallique (1) sans fin fermée,
    caractérisé en ce que
    la bande métallique (1) est poncée en un passage de ponçage final au total avec un seul élément de ponçage (4, 8, 12) vieilli respectivement usé, qui présente, au début du passage de ponçage de finition, une usure minimale (A1).
  2. Procédé selon la revendication 1, caractérisé en ce que la bande métallique (1) est poncée en un passage de ponçage final jusqu'à une usure maximale du support de ponçage (4, 8, 12).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le passage de ponçage final est effectué avec un élément de ponçage (4, 8, 12) à liaison dure.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la bande métallique (1) est poncée transversalement et longitudinalement.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la bande métallique (1) est poncée avec un disque de ponçage (12) ou un rouleau de ponçage (4).
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que la bande métallique (1) est poncée avec une bande de ponçage (8).
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que l'élément de ponçage (4, 8, 12) est en contact avec la bande métallique (1) le long une ligne.
  8. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que l'élément de ponçage (4, 8, 12) est contact avec la bande métallique (1) sur une surface.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la bande métallique (1) est poncée sur toute la largeur de la bande.
  10. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la bande métallique (1) est poncée dans une zone (E) réduite par rapport à toute la largeur de la bande.
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que la bande métallique (1) est poncée à sec.
  12. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que la bande métallique (1) est poncée par voie humide respectivement à l'aide d'un produit lubrifiant.
  13. Procédé selon l'une des revendications 1 à 12, caractérisé en ce qu'un mouvement d'avance entre l'élément de ponçage et la bande métallique (1) a lieu dans le sens opposé à un sens de ponçage.
  14. Procédé selon l'une des revendications 1 à 12, caractérisé en ce qu'un mouvement d'avance entre l'élément de ponçage et la bande métallique (1) a lieu dans le même sens que le sens de ponçage.
  15. Dispositif pour la fabrication d'une bande métallique (1), comprenant deux rouleaux (2, 3) ou deux dévidoirs (13, 14) pour le maintien et le déplacement de la bande métallique (1) ainsi qu'un dispositif de ponçage (4, 8, 12) pour le ponçage de la bande métallique (1) en plusieurs passages au moins sur un côté sur globalement toute la surface, caractérisé par
    des moyens, qui sont conçus pour déterminer un vieillissement respectivement une usure (A) d'un élément de ponçage (4, 8, 12) et pour déclencher une alarme lorsqu'un élément de ponçage (4, 8, 12) ne correspond pas, au début d'un passage de ponçage final, à un vieillissement prédéterminé ou à une usure prédéterminée (A).
  16. Dispositif selon la revendication 15, caractérisé par un disque de ponçage (12) ou un rouleau de ponçage (4).
  17. Dispositif selon la revendication 15, caractérisé par une bande de ponçage (8).
EP16793801.8A 2015-11-03 2016-11-02 Procédé et dispositif de production d'une surface homogène rectifiée d'une bande métallique Active EP3370916B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201630962T SI3370916T1 (sl) 2015-11-03 2016-11-02 Postopek in naprava za izdelavo homogene, brušene površine kovinskega traka
HRP20201814TT HRP20201814T1 (hr) 2015-11-03 2020-11-13 Postupak i uređaj za proizvodnju homogene, brušene površine metalne trake

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50928/2015A AT517879B1 (de) 2015-11-03 2015-11-03 Verfahren und Vorrichtung zum Herstellen einer homogenen, geschliffenen Oberfläche eines Metallbands
PCT/EP2016/076427 WO2017076905A1 (fr) 2015-11-03 2016-11-02 Procédé et dispositif de production d'une surface homogène rectifiée d'une bande métallique

Publications (2)

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EP3370916A1 EP3370916A1 (fr) 2018-09-12
EP3370916B1 true EP3370916B1 (fr) 2020-08-19

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EP (1) EP3370916B1 (fr)
CN (1) CN108349057B (fr)
AT (1) AT517879B1 (fr)
HR (1) HRP20201814T1 (fr)
HU (1) HUE052535T2 (fr)
SI (1) SI3370916T1 (fr)
WO (1) WO2017076905A1 (fr)

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DE102017208498A1 (de) * 2017-05-19 2018-12-06 Homag Bohrsysteme Gmbh Verfahren zur Bestimmung eines Zustands eines Schleifmittels und Schleifvorrichtung
AT524459B1 (de) * 2020-11-27 2023-01-15 Berndorf Band Gmbh Metallbandfertigung durch Schleifen

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US2244536A (en) * 1937-10-30 1941-06-03 Minnesota Mining & Mfg Apparatus for and method of surfacing metals, etc.
EP1089851B1 (fr) * 1998-06-25 2002-10-16 Unova U.K. Limited Procede et dispositif de polissage de bords de plaquette
CN104981302A (zh) * 2012-12-27 2015-10-14 百德福钢带有限公司 用于金属环形带的清洁设备和具有这种清洁设备的带浇铸设备
CN105008762B (zh) * 2013-03-07 2017-03-08 百德福钢带有限公司 包括由金属制成的带体的环形带以及用于检查在带外侧的带表面中的孔隙尺寸的方法
CN105073339B (zh) * 2013-04-10 2017-07-14 百德福钢带有限公司 用于打磨金属带的装置和方法
CN103692324B (zh) * 2013-12-18 2016-04-13 湖南湘投金天钛金属有限公司 金属带表面打磨设备及利用该设备打磨的方法

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Publication number Publication date
SI3370916T1 (sl) 2020-12-31
AT517879B1 (de) 2018-02-15
CN108349057A (zh) 2018-07-31
AT517879A1 (de) 2017-05-15
CN108349057B (zh) 2021-03-12
WO2017076905A1 (fr) 2017-05-11
EP3370916A1 (fr) 2018-09-12
HRP20201814T1 (hr) 2021-01-08
HUE052535T2 (hu) 2021-05-28

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