EP1334217B1 - Procede et installation de revetement au trempe d'une bande metallique - Google Patents

Procede et installation de revetement au trempe d'une bande metallique Download PDF

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Publication number
EP1334217B1
EP1334217B1 EP01993715A EP01993715A EP1334217B1 EP 1334217 B1 EP1334217 B1 EP 1334217B1 EP 01993715 A EP01993715 A EP 01993715A EP 01993715 A EP01993715 A EP 01993715A EP 1334217 B1 EP1334217 B1 EP 1334217B1
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EP
European Patent Office
Prior art keywords
compartment
metal
liquid
plant according
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
EP01993715A
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German (de)
English (en)
French (fr)
Other versions
EP1334217A1 (fr
Inventor
Didier Dauchelle
Hugues Baudin
Patrice Lucas
Laurent Gacher
Yves Prigent
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.)
ArcelorMittal France SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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.)
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Publication date
Application filed by Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Publication of EP1334217A1 publication Critical patent/EP1334217A1/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
    • C23C2/003—Apparatus
    • C23C2/0036—Crucibles
    • C23C2/00361—Crucibles characterised by structures including means for immersing or extracting the substrate through confining wall area
    • C23C2/00362—Details related to seals, e.g. magnetic means
    • 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
    • C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
    • C23C2/004—Snouts
    • 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 continuous hot-dip coating of a metal strip, in particular of a steel strip.
  • steel sheets coated with a protective layer for example against corrosion and most often coated with a layer of zinc.
  • This type of sheet is used in various industries to make all kinds of parts and in particular appearance parts.
  • Corrosion resistance of the parts thus coated is ensured by zinc, the thickness of which is produced most often by pneumatic spinning.
  • the adhesion of zinc to the steel strip is ensured by the alloy layer intermetallic cited above.
  • this strip of steel Before the steel strip passes through the molten metal bath, this strip of steel first circulates in an annealing furnace under an atmosphere reducing in order to recrystallize it after the significant work hardening linked to the operation cold rolling, and to prepare its surface chemical state in order to favor the chemical reactions necessary for the actual quenching operation.
  • the steel strip is brought to around 650 to 900 ° C depending on the grade during time required for recrystallization and surface preparation. Then she is 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 scrolls in a sheath also called “bell drop” or “horn” in an atmosphere protective against steel and is immersed in the molten metal bath.
  • a sheath also called "bell drop” or “horn” in an atmosphere protective against steel and is immersed in the molten metal bath.
  • 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 gasket which is crossed by the steel strip as it travels in said sheath.
  • the steel strip is deflected by a roller immersed in the metal bath and it comes out of this metal bath, then passes through wringing means used to regulate the thickness of the coating of liquid metal on this strip steel.
  • the surface of the liquid seal inside the sheath is generally covered with zinc oxide, from the reaction between the atmosphere inside this sheath and the zinc liquid seal and solid mattes from the dissolution reaction of the steel strip.
  • 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 spinning jets pneumatic before being ejected or disaggregated, creating streaks under thickness in liquid zinc a few millimeters long a few centimeters.
  • a first solution to avoid these drawbacks is to clean the surface of the liquid seal by pumping zinc oxides and mattes coming from the bath.
  • a second solution consists in reducing the surface of the liquid seal at the point of passage of the steel strip by placing a sheet metal plate or ceramic at this liquid joint to keep away from the strip part of the particles present on the surface and obtain a self-cleaning of the liquid joint by this strip.
  • This arrangement does not allow all the particles to be removed present on the surface of the liquid seal and self-cleaning is all the more important that the surface of the liquid seal is reduced, which is incompatible with industrial operating conditions.
  • Another solution is to add a frame to the surface of the liquid seal in the sheath and surrounding the steel strip.
  • the zinc vapors at the liquid joint will condense on the walls of the frame and at the slightest eddy caused by vibrations or the thermal folds of the immersion tape, the walls of the frame will become fouled and thus become storage areas for foreign bodies.
  • the renewal is carried out by the introduction of liquid zinc pumped into the bath near the immersion zone of the steel strip.
  • the piping ensuring the renewal of liquid zinc may cause scratches on the steel strip before immersion and it is itself a source of defects by accumulation of zinc vapors condensed above the liquid seal.
  • This process also requires a very high pumping rate to maintain a permanent spill effect as long as the box surrounding the band in the volume of the bath above the bottom roller can be hermetically sealed.
  • the object of the invention is to propose a method and an installation continuous galvanizing of a metal strip which prevents disadvantages previously mentioned and to achieve the very low density of defects satisfying the requirements of customers wanting flawless surfaces appearance.
  • the invention therefore relates to a dip coating process continuous metal strip in a tank containing a metal bath liquid, process in which we continuously scroll, under a protective atmosphere, the metal strip in a sheath whose lower part is immersed in the liquid metal bath to determine with the surface of said bath and inside from this sheath, a liquid seal, we deflect the metal strip on a deflector roller placed in the metal bath, and the strip is wrung metal coated at the outlet of the metal bath, characterized in that one realizes a natural flow of the liquid metal from the surface of the liquid seal in a discharge compartment formed in said sheath and comprising a wall internal extending the sheath to its lower part and at least one look of the side of the strip located on the side of the deflector roller, the upper edge of the compartment being positioned below said surface and the height of fall liquid metal in this compartment being determined to prevent the rise particles of metal oxide and intermetallic compounds to counter flow of the liquid metal flow and the metal level is maintained liquid in said compartment at a level below the seal surface liquid.
  • the strip of steel 1 passes through an annealing furnace, not shown, under a reducing atmosphere with a view to recrystallizing it after the significant work hardening linked to rolling at cold, and to prepare its surface chemical state in order to favor the 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 through a galvanizing installation shown in Fig. 1 and designated by the reference general 10.
  • This installation 10 comprises a tank 11 containing a bath 12 liquid zinc which contains chemicals 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.
  • the galvanizing installation 10 comprises a sheath 13 inside which the steel strip 1 travels under an atmosphere protective with respect to steel.
  • This sheath 13 also called “bell descent” or “trompe” presents, in the embodiment shown in the figures, a rectangular cross section.
  • the lower part 13a of the sheath 13 is immersed in the bath of zinc 12 so as to determine with the surface of said bath 12 and within this sheath 13, a liquid seal 14.
  • the steel strip 1 when immersed in the zinc bath 12 liquid, crosses the surface of the liquid seal 14 in the lower part 13a of the sheath 13.
  • the steel strip 1 is deflected by a roller 15 commonly called bottom roller and placed in the zinc bath 12. At the end of this bath of zinc 12, the coated steel strip 1 passes through wringing means 16 which are for example constituted by nozzles 16a for air projection and which are directed towards each side of the steel strip 1 to regulate the thickness of the coating liquid zinc.
  • the lower part 13a of the sheath 13 is extended, on the side opposite the face of the strip 1 located on the side of the deflection roller 15, by an internal wall 20 directed towards the surface of the liquid seal 14 and which cleans with said lower part 13a of the sheath 13, a compartment 25 for discharging the liquid zinc, as will be seen later.
  • the upper edge 21 of the internal wall 20 is positioned below of the surface of the liquid seal 14 and the compartment 25 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 to produce a flow natural liquid zinc from this surface of said liquid seal 14 towards this compartment 25.
  • the lower part 13a of the sheath 13 located opposite of the face of the strip 1 placed opposite the deflector roller 15, is extended by an internal wall 26 directed towards the surface of the liquid seal 14 and providing with said lower part 13a a sealed storage compartment 29 particles, in particular zinc oxide particles.
  • the upper edge 27 of the internal wall 26 is positioned above of the surface of the liquid seal 14.
  • the drop height of the liquid metal in the compartment spill 25 is determined to prevent the rise of particles of metal oxide and intermetallic compounds against the flow liquid metal and this height is greater than 50mm and preferably 100mm
  • the internal walls 20 and 26 have a part lower flared towards the bottom of the tank 11.
  • the internal walls 20 and 26 of the compartments 25 and 29 are made of stainless steel and have a thickness included for example between 10 and 20mm.
  • the upper edge 21 of the internal wall 20 is straight and preferably tapered.
  • the upper edge 21 of the internal wall 20 of the discharge compartment 25 comprises, in the longitudinal direction, a succession of hollows 22 and projections 23.
  • the recesses 22 and the projections 23 have the shape of arcs of a circle and the amplitude "a" between said recesses and said projections is preferably comprised between 5 and 10mm.
  • the distance "d" between the recesses 22 and the projections 23 is for example of the order of 150mm.
  • the upper edge 21 of the internal wall 20 is preferably tapered.
  • the means of maintaining the level of liquid zinc in the discharge compartment 25 are formed by a pump 30 connected to the suction side to said compartment 25 by a connecting duct 31 and provided with discharge side of an evacuation duct 32 in the volume of the bath 12 of the zinc removed.
  • the installation also includes display means the level of liquid zinc in the spill compartment 25 or all another way to view the level of liquid zinc.
  • these display means are formed by a reservoir 35 disposed outside the sheath 13 and connected at the base of the discharge compartment 25 by a connecting pipe 36.
  • connection point of the pump 30 on the discharge compartment 25 is located above the point connecting the reservoir 35 to said compartment 25.
  • the external reservoir 35 enables the level of the spill compartment 25 outside the lower part 13a of the sheath 13 in a more favorable environment so as to easily detect this level.
  • the reservoir 35 can be equipped with a level detector of liquid zinc, such as a contactor supplying a warning light, a radar or a laser beam.
  • the sheath 13 is extended at its lower part and opposite each lateral edge of the strip of steel 1, by an internal wall 40 directed towards the surface of the liquid seal 14 and the upper edge 41 of which is positioned below the said joint surface liquid 14.
  • Each internal wall 41 household, with the lower part of the sheath 13, a pouring compartment 42 for liquid zinc.
  • the steel strip 1 enters the bath zinc 12 through the sheath 13 and the liquid seal 14 and this strip causes zinc oxides and mattes from the bath creating appearance defects in the coating.
  • the surface of the liquid seal 14 is reduced thanks to the internal walls 20 and 26 and the insulated liquid seal surface 14 between said walls 20 and 26 flows into the discharge compartment 25 passing over the upper edge 21 of the internal wall 20 of said compartment 25.
  • Oxide particles and mattes or other particles which float on the surface of the liquid seal 14 and which are the source of appearance defects, are entrained in the spill compartment 25 and the liquid zinc contained in this compartment 25 is pumped in order to maintain a sufficient level below to allow the natural flow of zinc from the surface of the liquid seal 14 towards this compartment 25.
  • the steel strip 1 at immersion scrolls through the surface of the liquid seal 14 constantly cleaned and comes out of the zinc 12 with a minimum of defects.
  • the sealed compartment 29 serves as a receptacle for the oxides of zinc or other particles that may come from the inclined bottom wall of the sheath and allows these oxides to be stored in order to protect the steel strip 1.
  • the external reservoir 35 makes it possible to detect the level of liquid zinc in the spill compartment 25 and adjust this level so to keep it below the level of the bath 12 by acting for example on the introduction of zinc ingots into the tank 11.
  • the installation according to the invention the density of defects on the coated surfaces of the steel strip is considerably reduced and the quality appearance thus obtained from this coating is suitable for the criteria required by customers wanting parts whose surfaces have no appearance defects.
  • the invention applies to any metallic 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)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Electroplating Methods And Accessories (AREA)
EP01993715A 2000-11-10 2001-11-07 Procede et installation de revetement au trempe d'une bande metallique Expired - Lifetime EP1334217B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0014480A FR2816639B1 (fr) 2000-11-10 2000-11-10 Installation de revetement au trempe d'une bande metallique
FR0014480 2000-11-10
PCT/FR2001/003455 WO2002038824A1 (fr) 2000-11-10 2001-11-07 Procede et installation de revetement au trempe d'une bande metallique

Publications (2)

Publication Number Publication Date
EP1334217A1 EP1334217A1 (fr) 2003-08-13
EP1334217B1 true EP1334217B1 (fr) 2004-06-16

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EP01993715A Expired - Lifetime EP1334217B1 (fr) 2000-11-10 2001-11-07 Procede et installation de revetement au trempe d'une bande metallique

Country Status (34)

Country Link
US (1) US6936307B2 (pt)
EP (1) EP1334217B1 (pt)
JP (1) JP3747199B2 (pt)
KR (1) KR100725557B1 (pt)
CN (1) CN1271234C (pt)
AR (1) AR034274A1 (pt)
AT (1) ATE269427T1 (pt)
AU (2) AU2002223777B2 (pt)
BG (1) BG64800B1 (pt)
BR (1) BR0100006B1 (pt)
CA (1) CA2428487C (pt)
CZ (1) CZ298795B6 (pt)
DE (1) DE60103925T2 (pt)
DK (1) DK1334217T3 (pt)
EA (1) EA004448B1 (pt)
EC (1) ECSP034594A (pt)
EE (1) EE04644B1 (pt)
ES (1) ES2223956T3 (pt)
FR (1) FR2816639B1 (pt)
HR (1) HRP20030370B1 (pt)
HU (1) HU226624B1 (pt)
MA (1) MA25923A1 (pt)
ME (1) ME00792B (pt)
MX (1) MXPA03004133A (pt)
NO (1) NO20032089L (pt)
PL (1) PL201517B1 (pt)
PT (1) PT1334217E (pt)
RS (2) RS50049B (pt)
SK (1) SK286793B6 (pt)
TR (1) TR200401449T4 (pt)
TW (1) TW554073B (pt)
UA (1) UA73220C2 (pt)
WO (1) WO2002038824A1 (pt)
ZA (1) ZA200303500B (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
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
RU2344197C2 (ru) * 2003-02-27 2009-01-20 Смс Демаг Акциенгезелльшафт Способ и устройство для нанесения покрытий погружением в расплав на металлические ленты, в частности на стальные ленты
DE102006050681B3 (de) * 2006-10-24 2007-12-27 Gea Energietechnik Gmbh Verfahren zur Herstellung eines Wärmetauschers
KR101459360B1 (ko) * 2012-12-18 2014-11-20 포스코강판 주식회사 도금강판의 미도금 방지장치
DE102013101131A1 (de) * 2013-02-05 2014-08-07 Thyssenkrupp Steel Europe Ag Vorrichtung zum Schmelztauchbeschichten von Metallband
CN104562088A (zh) * 2015-01-20 2015-04-29 郑州经纬科技实业有限公司 电解铝阴极导电棒及其制备方法
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
CN107447174A (zh) * 2016-05-31 2017-12-08 宝钢新日铁汽车板有限公司 一种炉鼻子内的清洁系统和方法
CN107794478B (zh) * 2017-11-13 2019-10-29 北京首钢冷轧薄板有限公司 一种应用于热镀锌炉鼻子内部液位清洁装置
WO2019175623A1 (en) 2018-03-12 2019-09-19 Arcelormittal Method for dip-coating a metal strip
WO2019224584A1 (en) 2018-05-25 2019-11-28 Arcelormittal Method for dip-coating a metal strip
CN108624832A (zh) * 2018-07-10 2018-10-09 河北首燕机械股份有限公司 热镀锌炉鼻子内抑制和清除锌灰装置
DE102019206609A1 (de) * 2019-05-08 2020-11-12 Severstal Verfahren und Vorrichtung zum Spülen einer Überlaufkammer an dem badseitigen Ende eines Rüssels einer Vorrichtung zum Schmelztauchbeschichten
WO2021048593A1 (en) 2019-09-10 2021-03-18 Arcelormittal Moveable overflow for continuous hot-dip coating equipments
CN111705282B (zh) * 2020-06-24 2022-04-08 浙江东南新材科技有限公司 一种高强度镀锌钢卷的生产工艺
EP4215637A1 (en) 2022-01-25 2023-07-26 John Cockerill S.A. Device for cleaning a snout in a hot-dip galvanization installation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759807A (en) * 1986-12-29 1988-07-26 Rasmet Ky Method for producing non-aging hot-dip galvanized steel strip
JPH0211742A (ja) * 1988-06-29 1990-01-16 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
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
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
JPH11199997A (ja) * 1998-01-14 1999-07-27 Nisshin Steel Co Ltd 連続溶融めっき装置のスナウト
JP2001335906A (ja) * 2000-05-26 2001-12-07 Nippon Steel Hardfacing Co Ltd スナウト内異物除去装置

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US6936307B2 (en) 2005-08-30
ME00792B (me) 2012-03-20
BG107779A (en) 2004-01-30
FR2816639B1 (fr) 2003-10-24
AU2002223777B2 (en) 2006-11-16
DE60103925D1 (de) 2004-07-29
HU226624B1 (hu) 2009-04-28
ATE269427T1 (de) 2004-07-15
CZ20031294A3 (cs) 2004-01-14
PL201517B1 (pl) 2009-04-30
ZA200303500B (en) 2003-11-13
HUP0302618A2 (hu) 2003-11-28
MA25923A1 (fr) 2003-10-01
CA2428487C (fr) 2009-08-04
TR200401449T4 (tr) 2004-07-21
DK1334217T3 (da) 2004-08-30
YU36703A (sh) 2005-11-28
FR2816639A1 (fr) 2002-05-17
PT1334217E (pt) 2004-10-29
BR0100006A (pt) 2002-07-09
SK5382003A3 (en) 2004-01-08
CA2428487A1 (fr) 2002-05-16
HRP20030370B1 (en) 2005-04-30
CZ298795B6 (cs) 2008-01-30
ECSP034594A (es) 2003-09-24
UA73220C2 (en) 2005-06-15
EE200300209A (et) 2003-08-15
AU2377702A (en) 2002-05-21
MXPA03004133A (es) 2003-08-19
YU40503A (sh) 2005-11-28
EE04644B1 (et) 2006-06-15
HRP20030370A2 (en) 2003-06-30
KR100725557B1 (ko) 2007-06-08
EP1334217A1 (fr) 2003-08-13
HUP0302618A3 (en) 2003-12-29
NO20032089D0 (no) 2003-05-09
NO20032089L (no) 2003-07-08
CN1479799A (zh) 2004-03-03
EA004448B1 (ru) 2004-04-29
CN1271234C (zh) 2006-08-23
JP3747199B2 (ja) 2006-02-22
PL362615A1 (en) 2004-11-02
WO2002038824A1 (fr) 2002-05-16
RS50049B (sr) 2008-11-28
BG64800B1 (bg) 2006-04-28
EA200300553A1 (ru) 2003-10-30
DE60103925T2 (de) 2004-10-28
JP2004513238A (ja) 2004-04-30
RS50096B (sr) 2009-01-22
BR0100006B1 (pt) 2010-12-28
SK286793B6 (sk) 2009-05-07
KR20030048135A (ko) 2003-06-18
US20040052958A1 (en) 2004-03-18
AR034274A1 (es) 2004-02-18
ES2223956T3 (es) 2005-03-01
TW554073B (en) 2003-09-21

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