WO2012172648A1 - Équipement de placage par immersion à chaud en continu - Google Patents

Équipement de placage par immersion à chaud en continu Download PDF

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Publication number
WO2012172648A1
WO2012172648A1 PCT/JP2011/063620 JP2011063620W WO2012172648A1 WO 2012172648 A1 WO2012172648 A1 WO 2012172648A1 JP 2011063620 W JP2011063620 W JP 2011063620W WO 2012172648 A1 WO2012172648 A1 WO 2012172648A1
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WIPO (PCT)
Prior art keywords
steel plate
correction force
correction
wiping nozzle
warpage
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PCT/JP2011/063620
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English (en)
Japanese (ja)
Inventor
宏規 藤岡
隆 米倉
吉川　雅司
Original Assignee
三菱日立製鉄機械株式会社
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Priority to PCT/JP2011/063620 priority Critical patent/WO2012172648A1/fr
Publication of WO2012172648A1 publication Critical patent/WO2012172648A1/fr

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    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0034—Details related to elements immersed in bath
    • C23C2/00342—Moving elements, e.g. pumps or mixers
    • C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003—Apparatus
    • C23C2/0035—Means for continuously moving substrate through, into or out of the bath
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/24—Removing excess of molten coatings; Controlling or regulating the coating thickness using magnetic or electric fields

Definitions

  • the present invention relates to a technology for correcting the warpage of a steel plate by means of an electromagnet type / non-contact type correction force generator in a continuous molten metal plating facility.
  • the steel sheet is turned upward by a sink roll placed in a molten metal bath, and the molten zinc adhered when pulled up from the molten metal is sprayed with a wiping gas from both sides of the steel sheet and excess zinc
  • the metal-plated steel plate having a desired plating adhesion thickness is obtained by wiping
  • the steel plate passing through the wiping nozzle portion is L-warped due to cylindrical plastic bending in which the outer peripheral portion is pulled and extended and the inner peripheral portion is compressed and contracted. After that, the L-warpage is restrained by the tension, and the C-warpage deformation in the sheet width direction occurs.
  • the amount of C warpage generated in a steel plate having a width of 1 m at a sink roll diameter of 800 mm and a steel plate tension of 3 kgf / mm 2 which are general equipment specifications and operating conditions is shown in FIG.
  • the amount of C warpage generated in a steel plate with a thickness of 1 mm is about 2 mm, it increases with the increase in the plate thickness, and the amount of C warpage generated with a plate thickness of 3.2 mm becomes about 33 mm.
  • the plate thickness difference between the leading plate and the trailing plate at the time of plate joining is suppressed to about 20% or less in order to perform stable passing. For example, if a steel plate with a thickness of 1.8 mm and a width of 1 m is changed to a thickness of 2.3 mm during operation, as shown in FIG. 10, the C warpage changes by about 10 mm from 18 mm to 28 mm. Although the support roll pressing position adjustment in the bath is performed, it is difficult to completely match the timing of the warpage change of the steel plate. Therefore, the distance between the steel plate and the wiping nozzle is secured at least about 10 mm so that the steel plate does not contact the wiping nozzle and break of the plate occurs.
  • the amount of C warpage generation also differs depending on the steel plate material (Young's modulus, yield stress), so even when passing through steel plates of the same size, coils with different steel plate materials of base metal are joined or by different rolling conditions within the same coil. If the shape of the base material in the sheet width direction of the steel plate is different, the amount of C warpage changes, so it is necessary to adjust the in-bath support roll pushing position each time.
  • the distance between the wiping nozzle and the steel sheet changes by about 2 to 3 mm.
  • the plating adhesion amount is affected by about 10 g / m 2.
  • Indentation control is control sensitive to the amount of plating adhesion.
  • the in-bath support roll condition in the molten metal bath is not visible from outside the molten metal bath, and the in-bath support roll and the in-bath support roll bearing form an alloy layer of zinc, iron, etc. formed during operation.
  • a clearance of about 1 to 2 mm is provided to prevent rotation failure due to Therefore, once the C warping amount of the wiping nozzle portion is suppressed to 1 to 2 mm flat by the support roll pressing position control in the bath, the same coil may be used even if the plating deposition amount deviation is slightly increased to avoid operation problems. Under the size condition, in-bath support roll pushing position adjustment is often not performed.
  • Patent document 1 JP 2008-280587 JP 2009-68040 JP, 2009-114534, A
  • the plate thickness of the steel plate processed by the hot metal plating equipment is up to about 6 mm, but the uniformity of the amount of plating adhesion is required because the adhesion is required so that peeling does not occur at the time of large bending etc. It is a rolled steel plate.
  • the thickness of the sheet to be processed by the molten metal plating facility for cold rolled steel sheet is up to 2.3 mm at most and up to 3.2 mm.
  • At least four electromagnets 80 are installed in the plate width direction.
  • the width of the electromagnet 80 is about 165 mm.
  • FIG. 8 shows, for each plate thickness, the relationship between the attraction force of one electromagnet and the distance between the steel plate and the electromagnet when four electromagnets 80 are installed in the plate width direction on a four-foot wide steel plate. As the distance between the steel plate and the electromagnet increases, the attraction force of the electromagnet decreases. Further, as shown in Patent Document 2, when the distance between the steel plate and the electromagnet is narrowed, the danger of contact with the steel plate is increased due to the characteristics of the electromagnet, so the normal use range is 10 mm to 15 mm.
  • the attraction force per electromagnet for each plate thickness when the distance between the steel plate and the electromagnet is 10 mm and 15 mm is shown in FIG.
  • the attraction force of the electromagnet increases almost linearly up to a plate thickness of 3.2 mm and becomes 50 kgf, but when the plate thickness is 3.2 mm or more, the magnetic property entering the steel plate is saturated and the attraction force is It only slightly increases.
  • the plate thickness is approximately doubled compared to 3.2 mm, but the suction force is only 1.2 times to 60 kgf.
  • the target for performing the warp correction of the steel plate by the electromagnet type non-contact type correction force generator is to set the target area up to a thickness of 3.2 mm where the suction force increases according to the necessity and the thickness. But I can say that it is efficient. In the plate thickness region of 3.2 mm or more, since the demand for uniformity in plating amount is not so high, it can be said that control of the in-bath support roll pushing position currently used is sufficient.
  • the warping plate shape correction of the steel plate by the electromagnet type non-contact type correction force generation device is correction of elastic range, so even if the steel plate shape becomes flat at the correction force generation device position, the correction effect by the correction force generation device is If the wiping nozzle is installed at a position far enough to attenuate significantly, there is a problem that the amount of C warpage is recovered. Therefore, it is desirable to install the correction force generator near the wiping nozzle.
  • vibrations are easily generated in the steel plate due to fluctuations in line tension, air cooling after gas wiping, rotation of the support roll in the bath, etc. It is necessary to take care not to touch the
  • a touch roll is provided between the wiping nozzle and the alloying heating device above it, and after mechanical correction of the plate warpage, the alloying heating device is alloyed and alloyed zinc Some produce plated steel sheets (hereinafter referred to as GA (galvannealing) products).
  • GA galvannealing
  • a touch roll or a correction force generator is used to maintain the surface quality of the steel plate after plating, in either case, the wiping nozzle upper region automatically follows the steel plate edge as shown in FIG.
  • the edge sensor 21 that detects the steel plate edge, wiring and piping 22, the correction force generator 8 and the wiping nozzle The distance from 5 was about 1.5 m apart.
  • the correction force generation device 8 is disposed in two stages, the upper and lower stages of the plate position measurement sensor, the correction force generation device position indicates the plate position measurement sensor.
  • the edge overcoat is a phenomenon in which the hot-dip metal does not blow away near the side edge of the steel plate because the discharge gas from the wiping nozzle is at a pressure where the steel plate does not exist.
  • the corrective force effect has a problem that the amount of warp recovers to 6 mm at the nozzle portion. If the correction force generator 8 can generate a large correction force even if it is slightly away from the wiping nozzle 5, it is a measure against the damping.
  • the correction force generation device alone is controlled, and in the case of no
  • there is an upper limit to the area where the shape correction can be performed by the correction force generating device alone because of the restriction of the electromagnet attraction force used in the correction force generating device.
  • the specific method of determining that the force generator alone can be controlled and the thickness range are not described, and only a general operation method is described. Further, in a correction force generator using a general electromagnet, there has been no method for defining the range that can be controlled by the correction force generator alone.
  • the steel plate is made to continuously enter the molten metal bath, and the wiping steel is sprayed from the wiping nozzle onto the steel plate pulled up from the bath.
  • a correction force which is a suction force to a steel plate by a correction force generator installed above the wiping nozzle, thereby correcting C curvature of the steel plate at the wiping nozzle position without contact.
  • the correction force generator is composed of an electromagnet having a predetermined deformation ability to a steel plate of a predetermined thickness passing through the equipment, and a distance between the correction force generator and the wiping nozzle is It is characterized in that the following equation (1) is satisfied.
  • A amount of warpage of the steel plate at the wiping nozzle position in the case of a correction force of 0 (mm)
  • B Distance between the correction force generating devices installed across the steel plate (mm)
  • C Warpage correction coefficient D defined by the amount of deformation (mm / mm) that must be given at the correction force generator position to reduce the warpage of the steel plate at the wiping nozzle position by 1 mm: correction force generation when the correction force is 0 Warpage at the device position (mm)
  • the continuous molten metal plating facility according to claim 2 of the present invention for solving the above-mentioned problems is characterized in that, in the continuous molten metal plating facility according to claim 1, the thickness of the steel plate is 3.2 mm or less.
  • the continuous molten metal plating facility according to claim 3 of the present invention for solving the above problems is the continuous molten metal plating facility according to claim 1, wherein the thickness of the steel plate is 3.2 mm or less, and the correction force is generated.
  • the distance between the apparatus and the wiping nozzle is 700 mm or less.
  • the steel plate plated through the molten metal bath is reverse to the C-warpage by the electromagnet type correction force generator arranged according to the attraction force of the electromagnet.
  • the C-warpage of the steel plate at the wiping nozzle position can be effectively corrected without the steel plate coming into contact with the correction force generating device.
  • the uniformity of the plating adhesion amount is required, and according to the plate thickness
  • the target area of the steel plate is up to a plate thickness of 3.2 mm where the suction force increases, it is also efficient in terms of equipment.
  • the target area of the steel plate is up to a plate thickness of 3.2 mm, the C-warpage of the steel plate can be sufficiently corrected even with a compact design in which the electromagnets are arranged in one row in the plate line direction.
  • Warpage correction factor C defined as the amount of deformation (mm) that must be applied at the correction force generator position to reduce the 1 mm wide steel plate at the wiping nozzle position (hereinafter also referred to as the nozzle portion) It is a semi-logarithmic graph which shows the relationship between, electromagnet-nozzle distance: L. 4 (a) is a plan view at the correction force generator position when the distance between the electromagnet and the nozzle is 600 mm, and FIG.
  • FIG. 4 (b) is a front view of the continuous molten metal plating facility when the distance between the electromagnet and the nozzle is 600 mm. It is. 5 (a) is a plan view at the correction force generator position when the distance between the electromagnet and the nozzle is 1500 mm, and FIG. 5 (b) is a front view of the continuous molten metal plating facility when the distance between the electromagnet and the nozzle is 1500 mm. It is. Suction force required per foot width at the correction force generator position in order to reduce the 1 mm wide steel plate in the nozzle by 1 mm in the correction force generator position: A half-log graph showing the relationship between Fi and the distance between electromagnet and nozzle: L is there.
  • sectional drawing which shows the relationship between the correction force generator which embodied this invention, and the wiping nozzle.
  • FIG. 1 A first embodiment of the present invention is shown in FIG. 1
  • a non-contact correction force generator 8 is provided above the wiping nozzle 5 to apply a suction force to the steel plate 2 so that the C of the steel plate 2 is removed. Correct the shape without contacting the warp. Thereafter, the shape-corrected steel plate 2 is turned in the horizontal direction by the top roll 6, and the plating adhesion amount sensor 7 detects the plating adhesion amount.
  • a plurality of electromagnets 80 are disposed on both sides of the steel plate 2 in the plate width direction. C curvature correction of the steel plate 2 is performed by acting in the opposite direction to the part.
  • a plate position measurement sensor 9 for measuring the position of the steel plate 2 is attached directly above the correction force generator 8. The plate position measurement sensor 9 is used to confirm the correction effect of the warping of the steel plate by the correction force generating device and to set the reverse warp target position of the steel plate, and be installed in the vicinity of the correction force generating device 8 as much as possible. Is preferred.
  • the correction force generator 8 and the plate position measuring sensor 9 are collectively referred to as a noncontact plate position adjusting device 10.
  • the symbol a indicates the path position of the steel plate 2 when the correction force generator 8 is turned off
  • the symbol b indicates the path position of the steel plate 2 when the correction force generator is turned on.
  • the gap of the correction force generator 8 that is, the gap of the electromagnet sandwiching the steel plate 2 is B ′
  • the protection cover 81 of 2 mm thickness covers the electromagnet surface so that the steel plate does not contact the electromagnet directly
  • the amount of warpage of the steel plate at the position of the wiping nozzle 5 is A
  • the amount of warpage at the position of the correction force generator 8 Let D be.
  • the warp correction coefficient (mm) which is the warp correction amount (mm) by the correction force generator 8 necessary to reduce the warp of the steel plate 2 at the position of the wiping nozzle 5 by 1 mm
  • C the warp correction coefficient
  • the size of C ⁇ A is larger than the warpage D at the position of the correction force generator 8 when the correction force is 0. It has to grow.
  • the magnitude of the amount of warpage at the position of the correction force generator 8 is (C ⁇ A ⁇ D).
  • 2 ' is a steel plate shape at the correction force generating device position when the correction force is 0, and 2 ′ ′ is a steel plate shape at the correction force generating device position when reverse warpage is generated by the correction force generating device.
  • the width of the general electromagnet 80 is designed in consideration of the type of width of the steel plate to be produced, the amount of production, etc. In this case, an electromagnet of about 165 mm is adopted .
  • the amount of warpage (C ⁇ A ⁇ D) at the position of the correction force generator 8 is calculated from the correction force generator interval B obtained by subtracting the thickness of the cover for electromagnet protection from the gap B ′ of the electromagnet sandwiching the steel plate 2. It must be small. Therefore, the condition that the steel plate 2 does not contact the correction force generator 8 can be expressed by equation (1).
  • the thickness of a plate with a warp correction coefficient C defined by the amount of deformation (mm) that must be given at the correction force generator position to reduce a 1 mm width steel plate with a width of 1 m at the nozzle portion Indicate what was found for each.
  • C is 3 to 4. That is, in order to correct the amount of warpage of 1 mm at the position of the wiping nozzle at the position of the correction force generating device, it is necessary to correct the reverse warpage by 3 to 4 mm by 3 to 4 times. Specifically, as shown in FIGS.
  • FIG. 6 shows the suction force Fi (kgf / 165mm) and electromagnet required for 1 foot at the correction force generator position in order to reduce the warpage of a steel plate with a plate thickness of 3.2mm and a width of 1m at the nozzle part by 1mm. It is a graph which shows the relationship with the interval of a nozzle. As apparent from FIG. 6, when the suction force Fi is 26 to 50 kgf, the distance between the electromagnet and the nozzle is 600 to 700 mm.
  • the specific amount of reverse warpage correction given by the correction force generator 8 is shown below.
  • a ⁇ D warpage of the steel plate at the position of the wiping nozzle and the correction force generator is temporarily assumed to be A ⁇ D, and the warpage correction coefficient C is 3 and the electromagnet surface is protected by the protective cover 81 of 2 mm thickness.
  • the minimum dimension of the electromagnet-wiping nozzle interval is obtained.
  • the wiping nozzle height is 200 to 300 mm and the electromagnet height is 100 to 150 mm
  • the minimum size depends on the size of the wiping nozzle and electromagnet applied.
  • the distance between the correction force generator and the nozzle is set by the warpage correction coefficient C, which is a factor of the distance, so that the equation (1) is satisfied. It is possible to reliably provide the necessary correction force at the correction force generator position.
  • FIG. 1 A comparative example of the invention is shown in FIG.
  • This comparative example relates to Non-Patent Document 1 in which the distance between the wiping nozzle 5 and the correction force generator 8 is about 1500 mm.
  • the suction force required to correct a steel plate having a thickness of 3.2 mm is about 400 kgf from FIG.
  • the corrective force that can be applied by an electromagnet is about 50 kgf. Accordingly, in the comparative example, as in the case of the electromagnet-nozzle distance of 700 mm, it is possible to give the steel plate an amount of reverse warpage of 24 mm, but in the nozzle portion, the correction effect is significantly attenuated.
  • the symbol a indicates the pass position of the steel plate 2 when the correction force generator 8 is turned off
  • the symbol b indicates the pass position of the steel plate 2 when the correction force generator is turned on.
  • a wiping gas is sprayed from the wiping nozzle 5 toward the steel plate 2 to form a static pressure region between the wiping nozzle 5 and the steel plate 2 so as to suppress the vibration of the steel plate. Since it is formed only between the nozzle 5 and the steel plate 2 and is narrow, when the equipment is installed near the upper part of the wiping nozzle, the gas flow around the wiping nozzle is stabilized to prevent the steel plate 2 from contacting the equipment. It will incorporate the cushion plate 11 which has a cushion effect (refer patent document 3).
  • position adjustment control with respect to the steel plate edge is performed using the common drive device for the baffle plate 12 and the cushion plate 11, and the correction force generator 8 and the wiping nozzle 5 use the common drive device for the position relative to the steel plate center
  • the overlapping space can be eliminated, and the distance of 700 mm or less between the wiping nozzle 5 and the correction force generator 8 can be easily achieved.
  • the present invention is capable of correcting the amount of warpage of a steel plate at the wiping nozzle position to be flat in equipment for continuous molten metal plating, and therefore enables the production of a steel plate having a uniform distribution of plating adhesion in the plate width direction.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)

Abstract

La présente invention se rapporte à un équipement de placage par immersion à chaud en continu avec lequel une tôle d'acier (2) est continuellement immergée dans un bain de métal fondu (1), un gaz d'essuyage est pulvérisé depuis des buses d'essuyage (5) sur la tôle d'acier (2) sortie du bain de sorte à enlever le zinc en excès, et une force électromagnétique agit sur la tôle d'acier (2) au moyen de générateurs de force corrective (8) qui sont agencés au-dessus des buses d'essuyage (5) afin de corriger sans contact le bombage de la tôle d'acier (2) au niveau de la position des buses d'essuyage (5). L'équipement de placage par immersion à chaud en continu est caractérisé en ce que les générateurs de force corrective (8) comprennent des électroaimants (80) qui peuvent déformer, selon un degré prédéterminé, la tôle d'acier (2) ayant une épaisseur prédéterminée qui passe à travers ledit équipement (8) et en ce que la distance entre les générateurs de force corrective (8) et les buses d'essuyage (5) satisfait l'équation (1) donnée ci-dessous. C × A - D < B … Equation (1)
PCT/JP2011/063620 2011-06-14 2011-06-14 Équipement de placage par immersion à chaud en continu WO2012172648A1 (fr)

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Cited By (7)

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DE102015216721B3 (de) * 2015-09-01 2016-11-24 Fontaine Engineering Und Maschinen Gmbh Vorrichtung zum Behandeln eines Metallbandes
US20170283929A1 (en) * 2014-11-21 2017-10-05 Fontaine Engineering Und Maschinen Gmbh Method and device for coating a metal strip with a coating material which is at first still liquid
WO2017170714A1 (fr) * 2016-03-29 2017-10-05 新日鐵住金株式会社 Appareil d'élimination de liquide et procédé d'élimination de liquide
WO2017187729A1 (fr) * 2016-04-28 2017-11-02 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Installation et procédé de placage de métal fondu
DE102017109559B3 (de) 2017-05-04 2018-07-26 Fontaine Engineering Und Maschinen Gmbh Vorrichtung zum Behandeln eines Metallbandes
IT201900023484A1 (it) * 2019-12-10 2021-06-10 Danieli Off Mecc Apparato di stabilizzazione
US11255009B2 (en) 2016-08-26 2022-02-22 Fontaine Engineering Und Maschinen Gmbh Method and coating device for coating a metal strip

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JP2017535678A (ja) * 2014-11-21 2017-11-30 フォンテーン エンジニーアリング ウント マシーネン ゲゼルシャフト ミット ベシュレンクテル ハフツングＦｏｎｔａｉｎｅ Ｅｎｇｉｎｅｅｒｉｎｇ ｕｎｄ Ｍａｓｃｈｉｎｅｎ ＧｍｂＨ 当初はまだ液状のコーティング材料で金属ストリップをコーティングする方法および装置
JP2018522141A (ja) * 2015-09-01 2018-08-09 フォンテーン エンジニーアリング ウント マシーネン ゲゼルシャフト ミット ベシュレンクテル ハフツングＦｏｎｔａｉｎｅ Ｅｎｇｉｎｅｅｒｉｎｇ ｕｎｄ Ｍａｓｃｈｉｎｅｎ ＧｍｂＨ 金属帯材を処理するための装置
KR102032789B1 (ko) * 2015-09-01 2019-10-16 폰테인 엔지니어링 운트 마쉬넨 게엠베하 금속 스트립을 처리하기 위한 장치
AU2016316541B2 (en) * 2015-09-01 2019-05-02 Fontaine Engineering Und Maschinen Gmbh Device for treating a metal strip
KR20180008520A (ko) * 2015-09-01 2018-01-24 폰테인 엔지니어링 운트 마쉬넨 게엠베하 금속 스트립을 처리하기 위한 장치
US10190203B2 (en) 2015-09-01 2019-01-29 Fontaine Engineering Und Maschinen Gmbh Device for treating a metal strip with a liquid coating material
DE102015216721B3 (de) * 2015-09-01 2016-11-24 Fontaine Engineering Und Maschinen Gmbh Vorrichtung zum Behandeln eines Metallbandes
CN108699707A (zh) * 2016-03-29 2018-10-23 新日铁住金株式会社 液体去除装置和液体去除方法
WO2017170714A1 (fr) * 2016-03-29 2017-10-05 新日鐵住金株式会社 Appareil d'élimination de liquide et procédé d'élimination de liquide
JPWO2017170714A1 (ja) * 2016-03-29 2018-08-30 新日鐵住金株式会社 液体除去装置及び液体除去方法
CN108699707B (zh) * 2016-03-29 2020-03-17 日本制铁株式会社 液体去除装置和液体去除方法
US11174558B2 (en) 2016-03-29 2021-11-16 Nippon Steel Corporation Liquid removal device and liquid removal method
EP3333278A4 (fr) * 2016-04-28 2018-06-13 Primetals Technologies Japan, Ltd. Installation et procédé de placage de métal fondu
CN107923025A (zh) * 2016-04-28 2018-04-17 普锐特冶金技术日本有限公司 熔融金属镀敷设备以及方法
JP2017197823A (ja) * 2016-04-28 2017-11-02 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 溶融金属めっき設備及び方法
WO2017187729A1 (fr) * 2016-04-28 2017-11-02 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Installation et procédé de placage de métal fondu
US10815559B2 (en) 2016-04-28 2020-10-27 Primetals Technologies Japan, Ltd. Molten metal plating facility and method
US11255009B2 (en) 2016-08-26 2022-02-22 Fontaine Engineering Und Maschinen Gmbh Method and coating device for coating a metal strip
RU2724269C1 (ru) * 2017-05-04 2020-06-22 Фонтэн Инжиниринг Унд Машинен Гмбх Устройство для обработки металлической полосы
DE102017109559B3 (de) 2017-05-04 2018-07-26 Fontaine Engineering Und Maschinen Gmbh Vorrichtung zum Behandeln eines Metallbandes
WO2018202389A1 (fr) 2017-05-04 2018-11-08 Fontaine Engineering Und Maschinen Gmbh Dispositif pour le traitement d'une bande métallique
US11549168B2 (en) 2017-05-04 2023-01-10 Fontaine Engineering Und Maschinen Gmbh Apparatus for treating a metal strip including an electromagnetic stabilizer utilizing pot magnets
IT201900023484A1 (it) * 2019-12-10 2021-06-10 Danieli Off Mecc Apparato di stabilizzazione
WO2021116964A1 (fr) * 2019-12-10 2021-06-17 Danieli & C. Officine Meccaniche S.P.A. Appareil de stabilisation

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