EP1339891B1 - Procede et installation de revetement au trempe a chaud et en continu d'une bande metallique - Google Patents

Procede et installation de revetement au trempe a chaud et en continu d'une bande metallique Download PDF

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Publication number
EP1339891B1
EP1339891B1 EP01993387A EP01993387A EP1339891B1 EP 1339891 B1 EP1339891 B1 EP 1339891B1 EP 01993387 A EP01993387 A EP 01993387A EP 01993387 A EP01993387 A EP 01993387A EP 1339891 B1 EP1339891 B1 EP 1339891B1
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EP
European Patent Office
Prior art keywords
metal
liquid
compartment
liquid metal
bath
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
EP01993387A
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German (de)
English (en)
French (fr)
Other versions
EP1339891A1 (fr
Inventor
Didier Dauchelle
Hugues Baudin
Patrice Lucas
Laurent Gacher
Yves Prigent
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ArcelorMittal France SA
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ArcelorMittal France SA
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Publication date
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Publication of EP1339891A1 publication Critical patent/EP1339891A1/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
    • C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36—Elongated material
    • C23C2/40—Plates; Strips
    • 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
    • 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
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • 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
    • C23C2/50—Controlling or regulating the coating processes
    • C23C2/52—Controlling or regulating the coating processes with means for measuring or sensing
    • C23C2/523—Bath level or amount

Definitions

  • the present invention relates to a method and an installation for hot-dip coating and continuous coating of a metal strip, in particular a steel strip.
  • steel sheets coated with a protective layer for example against corrosion and usually coated with a zinc layer are used.
  • This type of sheet is used in various industries to make all kinds of parts and in particular appearance parts.
  • an Fe-Zn-Al intermetallic alloy is formed on the surface of said strip with a thickness of some ten nanometers.
  • the corrosion resistance of the parts thus coated is ensured by the zinc, so the thickness is most often achieved by pneumatic spinning.
  • the adhesion of zinc to the steel strip is provided by the intermetallic alloy layer mentioned above.
  • this steel strip Before the passage of the steel strip in the bath of molten metal, this steel strip first circulates in a annealing furnace under a reducing atmosphere in order to recrystallize it after the important work hardening related to the rolling operation. cold, and prepare its chemical surface state to promote the chemical reactions necessary for the soaking operation itself.
  • the steel strip is brought to about 650 to 900 ° C depending on the grade for the time required for recrystallization and surface preparation. It is then cooled to a temperature close to that of the molten metal bath using exchangers.
  • the steel strip After passing through the annealing furnace, the steel strip passes through a sheath also called “bell drop” or “horn” under a protective atmosphere with respect to the steel and is immersed in the bath of molten metal.
  • a sheath also called "bell drop” or “horn” under a protective atmosphere with respect to the steel and is immersed in the bath of molten metal.
  • the lower part of the sheath is immersed in the metal bath to determine, with the surface of said bath and inside this sheath, a liquid seal which is traversed by the steel strip when it is moved through said sheath.
  • the steel strip is deflected by a roll immersed in the metal bath and it emerges from the metal bath, then passes through the wiper means for regulating the thickness of the liquid metal coating on the steel strip.
  • the surface of the liquid seal inside the sheath is generally covered with zinc oxide, resulting from the reaction between the atmosphere inside this sheath and the zinc of the liquid seal and solid mattes from the dissolution reaction of the steel strip.
  • These mattes or other particles, supersaturation in the zinc bath have a lower density than liquid zinc and go back to the surface of the bath and in particular to the surface of the liquid seal.
  • the coated steel strip has appearance defects which are amplified or even revealed during the zinc wringing operation.
  • the intruded particles are retained by the pneumatic wringing jets before being ejected or disintegrated, thus creating sub-thick streaks in the liquid zinc of a length of a few millimeters to a few centimeters.
  • a first solution to avoid these disadvantages consists in cleaning the surface of the liquid seal by pumping zinc oxides and mattes from the bath.
  • a second solution is to reduce the surface of the liquid seal at the point of passage of the steel strip by placing a plate of sheet metal or ceramic at this liquid seal to keep away from the band a portion of the particles present on the surface and get a self-cleaning of the liquid seal by this tape.
  • This arrangement does not allow to remove all the particles present on the surface of the liquid seal and the self-cleaning is all the more important that the surface of the liquid seal is reduced, which is incompatible with the industrial conditions of exploitation.
  • Another solution is to add a frame to the surface of the liquid seal in the sheath and surrounding the steel strip.
  • This arrangement does not completely eliminate the defects related to the entrainment of zinc oxides and mattes by the scrolling of the steel strip.
  • This solution can only work a few hours or even a day before becoming an additional source of defects.
  • this solution only partially processes the liquid seal and does not achieve a very low density of defects satisfying the requirements of customers wanting surfaces without appearance defects.
  • Renewal is achieved by introducing liquid zinc pumped into the bath in the vicinity of the immersion zone of the steel strip.
  • the piping ensuring the renewal of liquid zinc can cause scratches on the steel strip before immersion and is itself a source of defects by accumulation of condensed zinc vapor above the liquid seal.
  • a process is also known which is based on the renewal of zinc at the liquid seal and wherein this renewal is carried out using a stainless steel box surrounding the steel strip and opening on the surface of the liquid seal .
  • a pump sucks the particles entrained by the spill thus created and pushes them back into the volume of the bath.
  • This method also requires a very high pumping rate to maintain a permanent spill effect in that the box surrounding the strip in the bath volume above the bottom roller can not be hermetically sealed.
  • JP-A-04120258 discloses a coating installation by dipping a metal strip having a sheath, immersed in the bath of liquid metal and having two liquid metal spill compartments.
  • the object of the invention is to provide a method and an installation for continuously galvanizing a metal strip which makes it possible to avoid the above-mentioned drawbacks and to achieve the very low density of defects satisfying the requirements of customers desiring surfaces without appearance defects.
  • the subject of the invention is therefore a process for the continuous coating of a metal strip in a tank containing a bath of liquid metal, a process in which the metal strip is continuously deflected under a protective atmosphere in a sheath of which the lower part is immersed in the bath of liquid metal to determine with the surface of said bath and inside this sheath, a liquid seal, the metal strip is deflected on a baffle roll disposed in the metal bath and the coated metal strip is dewatered at the outlet of the metal bath, characterized in that a natural flow of the liquid metal, of the surface of the liquid seal, is carried out in two discharge compartments formed in said sheath and each having an internal wall extending the sheath at its lower part and at least opposite each face of the strip, the upper edge of each compartment being positioned at below said surface, the level of liquid metal in said compartments is detected and the level of liquid metal in said compartments is maintained at a level below the surface of the liquid seal so that the drop height of the liquid metal in compartments st greater
  • the steel strip 1 passes into an annealing furnace, not shown, under a reducing atmosphere in order to recrystallize it after the cold-rolling-forming process, and prepare its chemical surface state to promote the chemical reactions necessary for the galvanizing operation.
  • the steel strip is brought to a temperature for example between 650 and 900 ° C.
  • the steel strip 1 passes into a galvanizing installation shown in FIG. Fig. 1 and designated by the general reference 10.
  • This installation 10 comprises a tank 11 containing a bath 12 of liquid zinc which contains chemical elements such as aluminum, iron and possible additives such as lead, antimony, in particular.
  • the temperature of this liquid zinc bath is of the order of 460 ° C.
  • the steel strip 1 is cooled to a temperature close to that of the liquid zinc bath using exchangers and is then immersed in the bath 12 of liquid zinc.
  • an Fe-Zn-Al intermetallic alloy is formed on the surface of the steel strip 1 to ensure the connection between the steel strip and the zinc remaining after the spinning.
  • the galvanizing installation 10 comprises a sheath 13 inside which the steel strip 1 passes under a protective atmosphere with respect to the steel.
  • This sheath 13 also known as "bell drop” or “horn” has, in the embodiment shown in the figures, a rectangular cross section.
  • the lower part 13a of the sheath 13 is immersed in the zinc bath 12 so as to determine with the surface of said bath 12 and inside this sheath 13, a liquid seal 14.
  • the steel strip 1 is deflected by a roller 15 commonly called a bottom roller and placed in the zinc bath 12. At the outlet of this zinc bath 12, the coated steel strip 1 passes into spinning means 16 which are for example constituted by air jet nozzles 16a and which are directed towards each side of the steel strip 1 to regulate the thickness of the liquid zinc coating.
  • the lower part 13a of the sheath 13 is extended, on the opposite side of the face of the strip 1 located on the side of the baffle roller 15, by an inner wall 20 directed towards the surface of the liquid seal 14 and which is in keeping with said lower part 13a of the sheath 13, a first compartment 25 for pouring liquid zinc.
  • the upper edge 21 of the inner wall 20 is positioned below the surface of the liquid seal 14 to produce a natural flow of liquid zinc from this surface of said seal 14 to this compartment 25.
  • the lower portion 13a of the sheath 13 facing the face of the strip 1 placed opposite the deflector roll 15, is extended by an inner wall 26 facing the surface of the liquid seal 14 and gentle with said lower portion 13a a second compartment 29 for pouring liquid zinc.
  • the upper edge 27 of the inner wall 26 is positioned below the surface of the liquid seal 14 and the compartment 29 is provided with means for maintaining the level of liquid zinc in said compartment at a level below the surface of the liquid seal 14 for producing a natural flow of liquid zinc from this surface of said liquid seal 14 to this compartment 29.
  • the height of drop of the liquid metal in the compartments 25 and 29 is determined to prevent the rise of the particles of metal oxide and intermetallic compounds against the current of the liquid metal flow and this height is greater than 50 mm and of preferably 100mm.
  • the inner walls 20 and 26 have a lower portion flared towards the bottom of the tank 11.
  • the inner walls 20 and 26 of the compartments 25 and 29 are made of stainless steel and have a thickness of between 10 and 20 mm.
  • the upper edges 21 and 27 of the inner walls 20 and 26 are rectilinear and preferably tapered.
  • the upper edges 21 and 27 of the inner walls 20 and 26 comprise, in the longitudinal direction, a succession of recesses 22 and projections 23.
  • the recesses 22 and the projections 23 have the shape of circular arcs and the amplitude "a" between said recesses and said projections is preferably between 5 and 10 mm.
  • the distance "d" between the recesses 22 and the projections 23 is for example of the order of 150mm.
  • the upper edges 21 and 27 of the inner walls 20 and 26 are preferably tapered.
  • one of the upper edges 21 or 27 of the compartments 25 or 29 may be rectilinear and the other comprise a succession of recesses and projections.
  • the means for maintaining the level of liquid zinc in the pouring compartments 25 and 29 are formed by a pump 30 connected on the suction side to said compartment 25 and 29 by a connection duct, respectively 31 and 33.
  • the pump 30 is provided on the discharge side of a discharge pipe 32 in the volume of the bath 12 of the zinc removed.
  • the installation comprises means for displaying the level of liquid zinc in the pouring compartments 25 and 29 or any other means for visualizing the level of liquid zinc.
  • these display means are formed by a reservoir 35 disposed outside the sheath 13 and connected to the base of each of the compartments 25 and 29 by a connecting pipe, respectively 36 and 37.
  • the point of connection of the pump 30 to the overflow compartments 25 and 29 is located above the point of connection of the reservoir 35 to said compartments 25 and 29.
  • the external reservoir 35 makes it possible to postpone the level of the dumping compartments 25 and 29 to the outside of the lower part 13a of the sheath 13 in a favorable environment so as to easily detect this level.
  • the reservoir 35 may be equipped with a liquid zinc level detector, such as for example a contactor supplying a light, a radar or a laser beam.
  • the sheath 13 is extended to be lower and facing each side edge of the steel strip 1, by an inner wall 49 facing the surface of the liquid seal 14 and whose upper edge 41 is positioned below of said surface of the liquid seal 14.
  • Each inner wall 41 with the lower part of the sheath 13 houses a spill compartment 42 of the liquid zinc.
  • the steel strip 1 enters the zinc bath 12 via the sheath 13 and the liquid seal 14 and this strip causes zinc oxides and matts from the bath thereby creating appearance defects in the coating.
  • the surface of the liquid seal 14 is reduced by the internal walls 20 and 26 and the surface of the liquid seal 14 between said walls 20 and 26 flows into the overflow compartments 25 and 29 passing over upper edges 21 and 27 of the inner walls 20 and 26 of said compartments 25 and 29.
  • the oxide particles and the mattes or other particles which float on the surface of the liquid seal 14 and which are at the origin of the defects of appearance, are entrained in the dumping compartments 25 and 29 and the liquid zinc contained in these Compartments 25 and 29 are pumped to maintain a sufficient level below to allow the natural flow of zinc from the surface of the liquid seal to these compartments 25 and 29.
  • the steel strip 1 to the immersion scrolls through the surface of the permanently cleaned liquid gasket 14 and leaves the zinc bath 12 with a minimum of defects.
  • the external reservoir 35 makes it possible to detect the level of liquid zinc in the pouring compartments 25 and 29 and to adjust this level so as to keep it below the bath 12 by acting, for example, on the introduction of zinc ingots in the tank 11.
  • the installation further comprises spill compartments 25 and 29, two lateral spill compartments 42, the efficiency of the installation is substantially increased.
  • the density of defects on the coated surfaces of the steel strip is considerably reduced and the resulting appearance quality of this coating is suitable for the criteria required by customers wishing pieces whose surfaces are free of defects in appearance.
  • the invention applies to any metal coating by dipping.

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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)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP01993387A 2000-11-10 2001-11-07 Procede et installation de revetement au trempe a chaud et en continu d'une bande metallique Expired - Lifetime EP1339891B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0014481A FR2816640B1 (fr) 2000-11-10 2000-11-10 Installation de revetement au trempe a chaud et en continu d'une bande metallique
FR0014481 2000-11-10
PCT/FR2001/003456 WO2002038825A1 (fr) 2000-11-10 2001-11-07 Procede et installation de revetement au trempe a chaud et en continu d'une bande metallique

Publications (2)

Publication Number Publication Date
EP1339891A1 EP1339891A1 (fr) 2003-09-03
EP1339891B1 true EP1339891B1 (fr) 2009-12-23

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EP01993387A Expired - Lifetime EP1339891B1 (fr) 2000-11-10 2001-11-07 Procede et installation de revetement au trempe a chaud et en continu d'une bande metallique

Country Status (33)

Country Link
US (1) US6939586B2 (pt)
EP (1) EP1339891B1 (pt)
JP (2) JP3753693B2 (pt)
KR (1) KR100725558B1 (pt)
CN (1) CN1279205C (pt)
AR (1) AR034181A1 (pt)
AT (1) ATE452998T1 (pt)
AU (2) AU2002223778B2 (pt)
BG (1) BG65788B1 (pt)
BR (1) BR0100009B1 (pt)
CA (1) CA2428488C (pt)
CZ (1) CZ299077B6 (pt)
DE (1) DE60140896D1 (pt)
DK (1) DK1339891T3 (pt)
EA (1) EA004449B1 (pt)
EC (1) ECSP034593A (pt)
EE (1) EE04820B1 (pt)
ES (1) ES2336306T3 (pt)
FR (1) FR2816640B1 (pt)
HR (1) HRP20030363B1 (pt)
HU (1) HUP0303834A2 (pt)
MA (1) MA25855A1 (pt)
ME (1) ME00841B (pt)
MX (1) MXPA03004132A (pt)
NO (1) NO20032092L (pt)
PL (1) PL201518B1 (pt)
PT (1) PT1339891E (pt)
RS (1) RS49958B (pt)
SK (1) SK287885B6 (pt)
TW (1) TW554071B (pt)
UA (1) UA74223C2 (pt)
WO (1) WO2002038825A1 (pt)
ZA (1) ZA200303502B (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013104267B3 (de) * 2013-04-26 2014-02-27 Thyssenkrupp Steel Europe Ag Vorrichtung zum kontinuierlichen Schmelztauchbeschichten von Metallband
US11850634B2 (en) 2019-05-08 2023-12-26 Sms Group Gmbh Method and device for rinsing an overflow chamber at the bath-side end of a snout of a hot-dip coating device

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Publication number Priority date Publication date Assignee Title
CN100471980C (zh) * 2002-09-13 2009-03-25 杰富意钢铁株式会社 热镀金属带的制造方法和制造装置
ES2365951T3 (es) 2008-02-25 2011-10-13 Arcelormittal France Procedimiento de revestimiento de una banda metálica e instalación de realización del procedimiento.
DE102013101131A1 (de) * 2013-02-05 2014-08-07 Thyssenkrupp Steel Europe Ag Vorrichtung zum Schmelztauchbeschichten von Metallband
WO2017187225A1 (fr) 2016-04-26 2017-11-02 Arcelormittal Installation de revêtement au trempé à chaud et en continu d'une bande métallique et procédé associé
WO2017187226A1 (fr) * 2016-04-26 2017-11-02 Arcelormittal Installation de revêtement au trempé à chaud et en continu d'une bande métallique et procédé associé
WO2019175623A1 (en) 2018-03-12 2019-09-19 Arcelormittal Method for dip-coating a metal strip
FR3105796B1 (fr) * 2019-12-26 2022-06-10 Fives Stein Dispositif pour l’evacuation de mattes de la surface d’un bain de metal liquide a l’interieur d’une descente de cloche d’une ligne de revetement en continu d’une bande metallique
CN111893414B (zh) * 2020-04-30 2024-05-24 武汉钢铁有限公司 一种热涂镀生产线炉鼻子环形溢流装置
CN112695265A (zh) * 2020-12-11 2021-04-23 华菱安赛乐米塔尔汽车板有限公司 一种控制锌锅液位的方法
EP4215637A1 (en) * 2022-01-25 2023-07-26 John Cockerill S.A. Device for cleaning a snout in a hot-dip galvanization installation
WO2024110603A1 (en) * 2022-11-24 2024-05-30 Tata Steel Ijmuiden B.V. A hot dip coating device and a method of operating thereof

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US4759807A (en) * 1986-12-29 1988-07-26 Rasmet Ky Method for producing non-aging hot-dip galvanized steel strip
JPH02305948A (ja) * 1989-05-19 1990-12-19 Kawasaki Steel Corp 連続溶融金属めっき用スナウト内部のドロス除去装置
JPH03150338A (ja) * 1989-11-07 1991-06-26 Nippon Steel Corp 連続溶融合金化亜鉛メツキ鋼板の製造方法
JP2501654B2 (ja) * 1990-06-28 1996-05-29 川崎製鉄株式会社 連続溶融亜鉛めっき装置
JPH04120258A (ja) * 1990-09-12 1992-04-21 Kawasaki Steel Corp 連続溶融亜鉛めっき方法および装置
JPH05279827A (ja) * 1992-03-31 1993-10-26 Kawasaki Steel Corp 溶融金属めっきにおけるスナウト内ドロス除去装置
JP2001335906A (ja) * 2000-05-26 2001-12-07 Nippon Steel Hardfacing Co Ltd スナウト内異物除去装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013104267B3 (de) * 2013-04-26 2014-02-27 Thyssenkrupp Steel Europe Ag Vorrichtung zum kontinuierlichen Schmelztauchbeschichten von Metallband
WO2014173663A1 (de) 2013-04-26 2014-10-30 Thyssenkrupp Steel Europe Ag Vorrichtung zum kontinuierlichen schmelztauchbeschichten von metallband
US9745653B2 (en) 2013-04-26 2017-08-29 Thyssenkrupp Steel Europe Ag Apparatus for the continuous hot-dip coating of metal strip
US11850634B2 (en) 2019-05-08 2023-12-26 Sms Group Gmbh Method and device for rinsing an overflow chamber at the bath-side end of a snout of a hot-dip coating device

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Publication number Publication date
CZ20031293A3 (cs) 2004-01-14
PL362649A1 (en) 2004-11-02
SK5582003A3 (en) 2004-01-08
HRP20030363B1 (en) 2011-05-31
FR2816640A1 (fr) 2002-05-17
EA200300554A1 (ru) 2003-10-30
CA2428488A1 (fr) 2002-05-16
KR20030048136A (ko) 2003-06-18
RS49958B (sr) 2008-09-29
EE04820B1 (et) 2007-04-16
EA004449B1 (ru) 2004-04-29
AU2002223778B2 (en) 2006-04-27
MA25855A1 (fr) 2003-07-01
EP1339891A1 (fr) 2003-09-03
US20040052959A1 (en) 2004-03-18
TW554071B (en) 2003-09-21
JP4823634B2 (ja) 2011-11-24
NO20032092D0 (no) 2003-05-09
SK287885B6 (sk) 2012-02-03
ECSP034593A (es) 2003-09-24
ATE452998T1 (de) 2010-01-15
PT1339891E (pt) 2010-02-11
ZA200303502B (en) 2004-07-19
CN1479798A (zh) 2004-03-03
NO20032092L (no) 2003-07-08
FR2816640B1 (fr) 2003-10-31
UA74223C2 (uk) 2005-11-15
AR034181A1 (es) 2004-02-04
BR0100009B1 (pt) 2012-02-07
ME00841B (me) 2008-09-29
DE60140896D1 (de) 2010-02-04
MXPA03004132A (es) 2003-08-19
BG65788B1 (bg) 2009-11-30
BG107785A (en) 2003-12-31
BR0100009A (pt) 2002-07-09
JP2004513239A (ja) 2004-04-30
CZ299077B6 (cs) 2008-04-16
YU36503A (sh) 2005-11-28
JP2006063453A (ja) 2006-03-09
DK1339891T3 (da) 2010-04-26
HUP0303834A2 (en) 2004-03-01
US6939586B2 (en) 2005-09-06
AU2377802A (en) 2002-05-21
WO2002038825A1 (fr) 2002-05-16
CN1279205C (zh) 2006-10-11
CA2428488C (fr) 2010-10-19
HRP20030363A2 (en) 2003-06-30
PL201518B1 (pl) 2009-04-30
ES2336306T3 (es) 2010-04-12
KR100725558B1 (ko) 2007-06-08
JP3753693B2 (ja) 2006-03-08
EE200300208A (et) 2003-08-15

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