EP1357205B1 - Procédé et installation de traitement d'un produit en bande - Google Patents

Procédé et installation de traitement d'un produit en bande Download PDF

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Publication number
EP1357205B1
EP1357205B1 EP03290996A EP03290996A EP1357205B1 EP 1357205 B1 EP1357205 B1 EP 1357205B1 EP 03290996 A EP03290996 A EP 03290996A EP 03290996 A EP03290996 A EP 03290996A EP 1357205 B1 EP1357205 B1 EP 1357205B1
Authority
EP
European Patent Office
Prior art keywords
band
section
tensioner
treatment section
running
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
Application number
EP03290996A
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German (de)
English (en)
French (fr)
Other versions
EP1357205A3 (fr
EP1357205A2 (fr
Inventor
Alain Douaud
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.)
Clecim SAS
Original Assignee
VAI Clecim SA
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 VAI Clecim SA filed Critical VAI Clecim SA
Publication of EP1357205A2 publication Critical patent/EP1357205A2/fr
Publication of EP1357205A3 publication Critical patent/EP1357205A3/fr
Application granted granted Critical
Publication of EP1357205B1 publication Critical patent/EP1357205B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C49/00—Devices for temporarily accumulating material

Definitions

  • the invention relates to a method and a processing facility of a strip product and is especially applicable to stripping a metal strip.
  • a more or less oxide layer is formed during cooling, which must be removed by appropriate treatment.
  • a chemical etching by allowing the strip to remain, for a determined time, in a treatment fluid such as an acid capable of dissolving the oxides by transforming them into a salt of the acid.
  • this stripping is performed by scrolling the band, successively, in one or more tanks, filled with acid. It is thus possible to vary the processing time which depends on the immersed length and the speed of scrolling.
  • the pickling tank In an old process known as "push-pull", the pickling tank is placed between two winders, respectively uncoiling a reel and rewinding it after scrolling in the tray.
  • the evacuation section comprises means of shearing the strip to allow the evacuation of the coil at the end winding and engagement on the reel the head of the next reel.
  • Such a continuous line installation therefore comprises, in the direction of travel, at least three successive sections, respectively, a feed section, a processing section comprising one or more successive bins and an evacuation section.
  • the continuous stripping lines must therefore be equipped with means of accumulation of a variable length of strip, making it possible to store in advance, upstream of the treatment section, a length of band sufficient to supply the treatment section. during the necessary stopping time, in the feed section, for joining the tail of a spool with the next spool head.
  • the band In the same way, at the end of the winding of a coil, the band must be sheared to allow the evacuation of the wound coil and the band head thus formed must be engaged on the winder for the winding of the coil. next reel. During the downtime required for these operations, the tape continues to travel in the pickling tanks and the strip length thus produced is stored in an accumulator placed upstream of the discharge section.
  • the accumulators Previously, the accumulators consisted of deep wells in which it was allowed to unwind, under its own weight, a band descending into the well and towed at the outlet thereof, for example by pinch rollers.
  • the band forms inside the well, a single loop between two support rollers.
  • the accumulated tape length then depends on the depth of the well but can be increased by using several successive wells called "loop pits".
  • Such an arrangement requires only relatively basic traction control devices, but can only be used in low or medium capacity installations and for products not requiring a high quality level.
  • treatment facilities in particular stripping, operating in a continuous line, were planned, so far, only for very high production, for example exceeding 1 million tons per year.
  • the coils Since the coils have a limited weight of the order of twenty tons, they must succeed each other fairly quickly, which requires frequent stops scrolling to allow, upstream, the welding of the next coil and downstream, the evacuation of the wound coil.
  • a 1.5 minute downtime for coil replacement requires an accumulation capacity of about 400 m.
  • Such accumulators are well known and generally comprise a set of fixed return rollers and a set of movable rollers mounted on a looping carriage so as to form a plurality of overlapping superposed strands in opposite directions.
  • a horizontal displacement of the carriage in one direction or the other makes it possible, then, to increase or decrease the length of band passing on the rollers.
  • a series of separator arms which are distributed along the path of the looping carriage and must therefore deviate to allow the passage of this one (FR-A-2778350).
  • each accumulator requires precise control of the tensile force applied to the strip so that the different strands thereof remain well tensioned during the movement of the looping carriage.
  • Each accumulator must therefore be associated with two tensioners placed respectively upstream and downstream and usually consisting of S-rollers.
  • the treatment section may consist of relatively deep tanks, filled with a pickling fluid in which plunges the band into a looser or shorter loop.
  • a difference between the speeds of movement at the inlet and the outlet of the tank causes, indeed, a corresponding variation in the length of immersed tape.
  • a deep tank requires a large amount of treatment liquid and, for some time, it has been proposed to use, for stripping, relatively flat trays.
  • the band has a small arrow, which reduces the amount of liquid needed in the tray.
  • it can, moreover, be provided with a curved bottom so as to substantially follow the chain form of the loop.
  • the tensile force to be applied at each support in a chain-shaped curve depends on the orientation of the end of the loop and becomes very important when the band must follow a relatively tight curve.
  • the arrow of the chain is very sensitive to a variation of the traction forces applied to the entry and exit of the tray.
  • the band which scrolls at high speed, may be damaged. To avoid defects, it is therefore necessary to precisely control the tensile force applied to both ends of the strip so that the length of the chain and the level of its lower part remain substantially constant.
  • the band must be kept taut by two tensioning devices, respectively an upstream tensioner placed in front, in the direction of travel, the inlet end in the processing section and a downstream tensioner placed behind the output end of the processing section.
  • the downstream tensioner determines the running speed of the band which is retained by the upstream tensioner.
  • An adjustment of the torques applied to the two tensioners makes it possible to precisely control the tension of the belt in order to keep the length of the belt constant and, consequently, the boom in each tank.
  • the traction levels to be ensured in the bins are not the same as in the accumulators and the two tensioners placed upstream and downstream of the processing section are therefore added to those associated with the accumulators.
  • US-A-4,886,199 discloses a simplified arrangement in which the upstream accumulator and the downstream accumulator use the same looping carriage or two integral carriages in displacement.
  • US-A-4,886,199 can therefore be used, for example, for continuous rolling, but would not, in the case of a stripping line using relatively flat trays, to maintain the tensile force to a sufficiently constant level to avoid a risk of contact of the strip with the bottom of the tray.
  • the object of the invention is therefore to solve this problem by means of a new tape drive method in a continuous online installation, making it possible to use much simpler and more economical equipment than in conventional large capacity installations.
  • the provisions of the invention allow the use of modern technologies such as low-speed pickling tanks with fast acid recirculation without risk of deterioration of the band.
  • the invention therefore applies to an installation comprising, in general, at least three successive sections respectively a feed section, a treatment section by passing the band in at least one elongate tray containing a treatment fluid and an evacuation section, said treatment section being associated with an upstream tensioner and a downstream tensioner placed respectively forward of the entrance end and behind the exit end of the section.
  • any variation in the running speed in the processing section is compensated immediately, at least during an acceleration or deceleration phase, by a corresponding variation in the length of the band between the output end. of the treatment section and the downstream tensioner, so as to permanently maintain a substantially constant band length between said output end of the processing section, and the upstream tensioner, without significant variation of the tensile force applied to the web between the two tensioners.
  • the speed of scrolling in the processing section is reduced to a minimum compatible value.
  • the quality of the web and the running tape length, at said minimum speed, during this stopping time is stored in a capacity accumulator corresponding to this minimum speed, which is interposed between the output end of the treatment section and the downstream tensioner.
  • the speed of movement in the processing section is reduced to a minimum value compatible with the the quality of the web and the length of the traveling web at said minimum speed during said standstill time is set aside in a capacity accumulator corresponding to this minimum speed which is interposed between the output of the feed section and the upstream tensioner.
  • the dynamic effect of a variation of the running speed in the processing section is immediately compensated by a corresponding variation in the length of the band between the output of the processing section. and the downstream tensioner, without changing the tensile force and, consequently, the arrow of the chains formed in the tanks.
  • this stored length may be limited due to the reduction of the speed in the troughs to a minimum value and therefore a simpler and more economical accumulator can be used than in the classic continuous lines.
  • the invention also covers an installation for implementing the method, comprising two tensioners placed respectively upstream and downstream of a processing section.
  • the installation comprises means for controlling a variation of the length of strip moving between the output end of the processing section and the downstream tensioner, for the maintenance, at each moment, of a substantially constant band length between said output end and the upstream tensioner, without significant variation in the tensile force applied to the web between the two tensioners, respectively upstream and downstream.
  • the accumulation device interposed between the output end of the treatment section and the downstream tensioner may constitute, on the one hand, a means of maintaining, at any moment, a substantially constant strip length and tensile force between the inlet and outlet ends of each tray and, secondly, means for setting aside a sufficient strip length for the maintenance of a minimum tape running speed in the processing section during a scroll stopping time in the evacuation section.
  • such an accumulator has a maximum accumulation capacity corresponding to the length of the traveling band during the duration of a discharge cycle of a coil, for a reduced speed of scrolling in the processing section.
  • the accumulation capacity can be at most a few tens of meters.
  • the duration of an evacuation cycle is of the order of 1 to 2 minutes and the running speed, during this cycle, is reduced to about 10 m / min, the capacity of the accumulator possibly being 15 to 20 m.
  • such a tape accumulator comprises a return roller on which pass two strands of the strip, respectively back and forth, said return roller being displaceable, preferably horizontally, between two accumulation positions, respectively a minimum accumulation retracted position and a maximum accumulation output position.
  • the first accumulator placed between the outlet of the feed section and the upstream tensioner is advantageously of the type pit loop.
  • the invention thus makes it possible to provide a particularly simple and economical stripping plant that can operate in a continuous line in a profitable manner for a production of the order of 500,000 to 750,000 tons per year.
  • Figure 1 shows schematically a first part of an installation according to the invention having a feed section and the beginning of a processing section.
  • FIG. 2 schematically shows the second part of such an installation comprising the outlet of the treatment section and an evacuation section.
  • FIGS. 1 and 2 show schematically the assembly of a chemical stripping installation of a metal strip comprising three sections, respectively, a feed section 1, a treatment section 2 and a section of 3 evacuation successively along a longitudinal direction of travel of a metal strip 4.
  • the feed section 1 comprises, in a conventional manner, a reel 10 receiving a reel to be treated 41, pinch rollers 11 ensuring the unwinding of the reel 41, and a descaler-stripper block 12 for straightening the strip coming out of the reel and to rough plan to prevent the band may hang fixed parts, especially when scrolling in the pickling tanks.
  • a crop shear 13 allows to cut the head and the tail of each coil, in order to eliminate them.
  • the treatment section 2 consists of several pickling tanks 21, generally three or four trays, which are followed by a rinsing device 22.
  • each tray being provided, at its inlet and outlet, with baffle rollers 23 between which the strip follows a chain-shaped curve whose lowest part 43 passes a short distance from the bottom 24 of the tray, which may, optionally, be provided with a series of supports spaced to avoid direct contact.
  • the bottom 24 thereof it is possible to give the bottom 24 thereof a curved shape parallel to the chain-shaped curve followed by the strip between the two ends of the tray.
  • the number of tanks and their lengths are determined according to the maximum speed of the planned run, taking into account the type of strip to be treated, in particular its size and the nature of the material and the type of acid used.
  • the treatment section 2 is equipped with circulation and flow control systems of the pickling fluid in each tank, ensuring regeneration of the acid in order to maintain optimal chemical treatment conditions. Such means are well known and are not shown in the diagram.
  • the strip can then come into contact with the bottom 24 of the container and this results in a risk of deterioration and marking of the strip by friction.
  • the tensile force applied to the belt must also be controlled in order to avoid premature wear and deterioration of the support and guiding devices of the belt inside the troughs such as pinch rollers, sill thresholds or others.
  • the treatment section 2 is therefore associated with two tensioning devices 6, 6 'placed respectively upstream and downstream of the tray. downstream, in the direction of travel, the inlet and outlet ends 20 'of the treatment section 2.
  • the upstream device for tensioning 6 thus comprises an upstream stretcher 61 of the "S-block” type comprising at least two rollers with parallel axes on which the strip follows an S-shaped path and followed by a guiding device 62 which makes it possible to keep the band centered at the inlet 20 in the first treatment tank 5a.
  • the downstream tensioning device 6 ' comprises a guide block 62' making it possible to maintain the centering of the strip at the outlet 20 'of the rinsing section 22 and a tensioner block 62'.
  • the upstream tensioner 61 thus makes it possible, on the one hand, to drive the strip into the feed section 1 and, on the other hand, to retain the band which is driven by the downstream tensioner 61 '.
  • the torques applied by the two tensioners 61, 61 ' are adjusted in relation to each other so as to control the tensile force applied to the strip.
  • shear 63 which may be of the towed type is advantageously placed between the tensioner 61 'which pulls the strip and the guide block 62' which allows to center the strip in the shear so as to minimize edge drops.
  • a coiler 30 associated, on the one hand with a shear 31 for cutting the strip at the end of the winding of a coil 41 and on the other hand, means for removing the finished bobbin and means for engaging the tape head for winding a new bobbin.
  • Such means are well known and are therefore not shown in the diagram.
  • the installation being provided to allow the continuous movement of the band to be treated, it is necessary, as we have seen, to connect the tail of a band at the end of scrolling to the head of the next coil.
  • the tape must be stopped in the feed section 1 but must continue, in contrast, in the treatment section 2 because a stop in acid trays would be detrimental to the quality of the band and lead to a loss of metal.
  • a second accumulation device must be provided upstream of the winder 30 to reserve the strip length leaving the processing section 2 during the stop winding for the evacuation of a coil completed.
  • the tape travels at a very high speed, for example 250 m / min and this speed must be kept as constant as possible so as not to disturb the operation of the installation.
  • very high capacity accumulators which are each associated with two tensioners and that only a high production makes it possible to make a facility so expensive.
  • the invention is based on the idea that, assuming a certain loss of productivity compared to the continuous online processing installations carried out so far for large capacities, simpler and less expensive arrangements could be used which, however, allow to retain most of the benefits of continuous treatment and thus, it would be possible to reduce sufficiently the investment and operating costs for such a facility to be profitable for an average production, for example from 500,000 to 750,000 tons / year.
  • the downtime required for a cycle of replacement or removal of a coil is about 1.5 minutes. If the running speed can be reduced to a minimum value, for example 10 m / min, the capacity of the accumulator should be simply 15 to 20 m.
  • the accumulator 15 placed upstream of the inlet tensioner 61 of the processing section 2 may be of the type "loop pit”.
  • the tension of the band does not need to be controlled with great precision.
  • the general level of traction is therefore determined simply by adjusting the relative speeds of the tensioner 61 placed upstream of the feed section and the nip rolls 11 and 17.
  • this accumulator 5 is integrated in the downstream device 6 'and is therefore placed between the output end of the processing section 2 and the downstream tensioner 61 '.
  • this accumulator 5 is placed upstream of this stretcher 61 'because it can have a rather weak capacitance and can be arranged to maintain the voltage in the treatment section 2 at a constant level.
  • Such an accumulator 5 therefore makes it possible, not only to absorb the length of band produced during an evacuation cycle, but also to maintain constant, at each instant, the length of the band between the two tensioners 61, 61 'and, consequently , lengths and arrows in each bin 21.
  • the normal duration of a complete winding cycle of a coil 41 ' is about 1.5 minutes. If the speed of travel is reduced to 10 m / min, the capacity of the accumulator 5 must therefore be of the order of 15 to 20 m and in any case not more than a few tens of meters.
  • the accumulator 5 may be of the dancer roll type comprising a single return roller 51 associated with two fixed rollers 52, 52 'and movable over a length of about ten meters.
  • the return roller 51 moves horizontally below the rinsing section 22, one of the fixed rollers 52 being fixed at the outlet of the section. 2 and the other fixed roller 52 'may be part of the centering device 62' placed in front of the downstream tensioner 61 '.
  • the tension applied on the strip 4 in the pickling tanks 21, which determines the level of the lower part 43 of the curve formed in each tray by the band, depends solely on the torques applied respectively to the stretcher.
  • downstream 61 ' which determines the driving force and on the upstream tensioner 61 which exerts a restraining force and is not separated from the inlet 20' of the first trough by any device other than a deflection roller, which allows precise control of the tensile force on the belt.
  • the dancer roll 51 of the downstream accumulator 5 is preferably actuated by one or more not shown cylinders associated with a hydraulic control system which makes it possible to respond without delay to a variation of the tensile force applied between the two tensioners. 61, 61 ', for example, due to the dynamic effect of a variation of the speed, in the acceleration or deceleration phases.
  • the accumulator 5 therefore constitutes a traction control device making it possible to maintain the length of the band between the two tensioners 61, 61 'constant and, consequently, the arrow f of the chain-shaped curve followed by the band in each tray.
  • the unwinding of the strip 4 and its passage through the successive sections of the installation is controlled until the head of the strip is engaged on the winder 30.
  • installation can then operate continuously at a normal speed of travel in the tanks, for example 200 m / min.
  • the torques applied respectively by the two tensioners 61, 61 ' are adjusted so as to apply to the strip, at the ends 23, 23' of each tray 21, tensile stresses compatible with the stress level admissible by the material. constituting the strip, maintaining a minimum distance between the bottom 24 of the tray 21 and the lower portion 43 of the strip.
  • the speeds of the nip rollers 17 are adjusted so as to form, in each pit 16, a loop 42.
  • the dancer roll 51 of the downstream accumulator 5 is placed in its retracted position. minimum accumulation with, however, some possibility of horizontal displacement to compensate, if necessary, slight variations in the tensile force applied to the tape.
  • the running of the strip is stopped at the shear 13 in order to eliminate the tail of the strip, and the speed of travel in the tanks 21 is reduced to a minimum speed of the order of 10 m / min for which the loop lengths 42 previously accumulated in the pits 16 are sufficient to continue the treatment.
  • the speed of travel in the tanks 21 is again reduced to a minimum speed, for example 10 m / min, and the scrolling is stopped at the level of downstream shear 31 which cuts the band to allow the evacuation of the completed coil 41 'and then the engagement of the next part of the band on the winder 30 to form a new coil.
  • the accumulator 5 made it possible to absorb this deceleration so as to keep the length of each chain constant, despite the inertia of the drive devices. Then, the return roller 51 can move slightly in order to absorb the strip length treated in section 2 at this reduced speed, this length being, as we have seen, 15 to 20 m stopping 1, 5 min.
  • downstream accumulator 5 placed between the outlet 20 'of the treatment section and the downstream tensioner 61' fulfills the two functions, respectively of maintaining, at each instant, a substantially constant length of strip between the two ends of the each tray and setting aside a constant strip length scrolling in the processing section 2 at a minimum speed during the discharge cycle of the finished coil.
  • loop pits it is advantageous and particularly economical to use loop pits to form the upstream accumulator, but other arrangements could be used to provide the same function, for example a dancer roll.
  • the guiding devices 62, 62 ' can be two or three rollers and the tensioners 61, 61' with two or four rollers.
  • the fractionation shears 13, 31 may also be of any type adapted to the capacity of the line, to the desired scrolling speeds and to the nature of the materials to be treated.
  • the pickling system used for example a shallow dish or a tank with injection acid, as well as means for reducing the speed of scrolling to a level compatible with a reduced accumulation capacity to a few tens of meters. It is known, in particular, that it is advantageous for this purpose to carry out a hydrochloric etching and that it is also possible to use inhibitors to reduce the effect of the acid so as not to excessively attack the metal at high speed. scaled down.
  • the invention is specifically intended for producing continuous stripping lines of average capacity, for example of the order of 500,000 to 750,000 tons per year.
  • the invention also has advantages for lines of greater capacity because the traction control provided by the dancer roll would allow the use of low height bins with a very tight band, without risk of deterioration thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Adornments (AREA)
  • Coating With Molten Metal (AREA)
EP03290996A 2002-04-26 2003-04-23 Procédé et installation de traitement d'un produit en bande Expired - Lifetime EP1357205B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0205318 2002-04-26
FR0205318A FR2839085B1 (fr) 2002-04-26 2002-04-26 Procede et installation de traitement d'un produit en bande

Publications (3)

Publication Number Publication Date
EP1357205A2 EP1357205A2 (fr) 2003-10-29
EP1357205A3 EP1357205A3 (fr) 2005-02-23
EP1357205B1 true EP1357205B1 (fr) 2006-12-13

Family

ID=28686340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03290996A Expired - Lifetime EP1357205B1 (fr) 2002-04-26 2003-04-23 Procédé et installation de traitement d'un produit en bande

Country Status (6)

Country Link
US (1) US20030230663A1 (es)
EP (1) EP1357205B1 (es)
AT (1) ATE347941T1 (es)
DE (1) DE60310294T2 (es)
ES (1) ES2278123T3 (es)
FR (1) FR2839085B1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006035008A1 (de) * 2006-07-28 2008-01-31 Siemens Ag Betriebsverfahren für einen Schlingenspeicher mit Zugausgleich
CN103920740B (zh) * 2014-03-27 2016-08-24 中冶南方工程技术有限公司 一种低板面残留以热代冷产品生产方法
CN104128382B (zh) * 2014-03-27 2016-08-10 中冶南方工程技术有限公司 一种低酸耗耐蚀热轧酸洗产品生产方法
CN112775056B (zh) * 2020-12-21 2022-12-27 山东水星博惠汽车部件股份有限公司 一种汽车玻璃上的密封条加工生产装置

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Publication number Priority date Publication date Assignee Title
DE1452440A1 (de) * 1965-07-17 1969-04-17 Siemag Siegener Maschb Gmbh Einrichtung zum kontinuierlichen Zufuehren von in Bundform vorliegendem Walzband,in Bearbeitungslinien fuer Baender
US3593938A (en) * 1969-10-08 1971-07-20 United States Steel Corp Method and apparatus for processing strip
US4060186A (en) * 1975-11-18 1977-11-29 National Steel Corporation Metal strip handling apparatus and method
US4110824A (en) * 1977-05-18 1978-08-29 Youngstown Sheet And Tube Company Method and apparatus for continuously processing strand
GB2023549A (en) * 1978-06-23 1980-01-03 Loewy Robertson Eng Co Ltd Web Accumulators
US4281784A (en) * 1979-04-24 1981-08-04 Mcmullen James W Magnetic strip separator
DE2933017C2 (de) * 1979-08-16 1984-04-12 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Bandspeicherantrieb
US4293101A (en) * 1979-12-21 1981-10-06 Dunaevsky Vladimir I Apparatus for helically coiling bands after slitting wide strip
FR2484382A1 (fr) * 1980-05-07 1981-12-18 Clesid Sa Dispositif accumulateur de bande du type horizontal
DE3743763C1 (de) * 1987-07-10 1989-06-01 Bwg Bergwerk Walzwerk Bandbehandlungsanlage fuer Metall-,Kunststoff-,Papierbaender oder dergleichen
US5727748A (en) * 1996-09-04 1998-03-17 Arpeco Engineering Ltd. Web inspection and repair machine with web indexer device
FR2778350B1 (fr) * 1998-05-05 2000-07-28 Kvaerner Metals Clecim Installation d'accumulation d'un produit en bande
FR2784998B1 (fr) * 1998-10-22 2001-01-12 Kvaerner Metals Clecim Installation de decapage d'une bande metallique
JP2003094107A (ja) * 2001-09-21 2003-04-02 Hitachi Ltd 連続式酸洗冷間圧延設備とその操業方法

Also Published As

Publication number Publication date
DE60310294T2 (de) 2007-07-12
DE60310294D1 (de) 2007-01-25
ES2278123T3 (es) 2007-08-01
FR2839085B1 (fr) 2005-02-04
EP1357205A3 (fr) 2005-02-23
US20030230663A1 (en) 2003-12-18
FR2839085A1 (fr) 2003-10-31
EP1357205A2 (fr) 2003-10-29
ATE347941T1 (de) 2007-01-15

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