EP1518004B1 - Use of separation gas in continuous hot dip metal finishing - Google Patents

Use of separation gas in continuous hot dip metal finishing Download PDF

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Publication number
EP1518004B1
EP1518004B1 EP03714895A EP03714895A EP1518004B1 EP 1518004 B1 EP1518004 B1 EP 1518004B1 EP 03714895 A EP03714895 A EP 03714895A EP 03714895 A EP03714895 A EP 03714895A EP 1518004 B1 EP1518004 B1 EP 1518004B1
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EP
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Prior art keywords
zinc
gas
nitrogen
hot dip
sulphur
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Expired - Lifetime
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EP03714895A
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German (de)
French (fr)
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EP1518004A1 (en
Inventor
Walter Trakowski
Rolf Brisberger
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SMS Siemag AG
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SMS Demag AG
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Priority claimed from DE10233343A external-priority patent/DE10233343A1/en
Application filed by SMS Demag AG filed Critical SMS Demag AG
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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
    • 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
    • C23C2/0038—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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas

Definitions

  • the invention relates to a method for suppressing the zinc evaporation in the hot dip coating of a steel strip with zinc or zinc alloys.
  • the document DE 44 00 886 C2 describes a method for suppressing the zinc evaporation in the hot dip coating of a steel strip with zinc or zinc alloys, wherein the steel strip is in an inlet region under a protective gas atmosphere of a mixture of an inert gas with hydrogen and / or carbon monoxide as reducing gases and additionally carbon dioxide.
  • the protective gas atmosphere should contain up to 20 percent by volume of hydrogen and up to 10 percent by volume of carbon monoxide, or it should be added to the inert gas atmosphere 0.05 to 8 percent by volume of Co 2 .
  • EP 0 172 681 B1 discloses a method for suppressing the development of zinc fumes in a continuous process for hot dip coating an iron-based metal strip with zinc or zinc alloys, in which the strip is enclosed in an inlet region. Water vapor is introduced into this inlet region to maintain an atmosphere which oxidizes the zinc vapors but does not oxidize the iron band and which contains at least 264 ppm of water vapor and at least 1% by volume of hydrogen.
  • the atmosphere within the inlet region should contain 1 to 8 percent by volume of hydrogen and 300-4500 percent by volume of water vapor, the adjustment being carried out with an inert gas, for example nitrogen.
  • the US 6,224,692 B1 discloses a method and apparatus for electroplating a metal strip.
  • the metal strip is passed into a bath of liquid zinc or a liquid zinc alloy after it has previously been exposed to a hydrogen or inert gas atmosphere to remove any residual oxides present on the surface of the metal strip.
  • the document US 4,862,825 describes a stripping process for a metal strip after it has passed through a zinc bath. After leaving the zinc bath, the metal strip is blown with a non-oxidizing gas intended to prevent the oxidation of the still fresh zinc coating on the metal strip.
  • the gas used is preferably sulfur hexafluoride SF 6 .
  • the Japanese publication JP 07180014 discloses a method for suppressing evaporation of zinc on the surface of a zinc dipping bath for galvanizing a metal strip.
  • the surface is provided of the immersion bath by applying gaseous nitrogen to 420 ° C to 440 ° C to cool. This advantageously leads to the fact that the zinc no longer evaporates on the surface of the immersion bath and that the metal strip after passing through the zinc bath has a zinc coating with a very good surface.
  • Japanese pamphlet JP-A-279 730 a process for hot-dip galvanizing a metal strip with suppressed zinc bath oxidation in the area of Badeintritts.
  • the zinc oxidation is suppressed by introducing inert gas having a density> 2 kg / m 2 into a furnace trunk through which the metal strip is introduced into the zinc bath.
  • the inert gas is one or at least two of the following inert gases xenon, krypton, radon or sulfur hexafluoride. These inert gases are mainly used to prevent zinc oxidation.
  • the reduction of zinc evaporation is only a side effect.
  • Xenon is a very expensive gas and therefore can not be used for industrial mass production.
  • the present invention seeks to provide an alternative separation gas for suppressing zinc evaporation in the hot dip coating of a metal strip with zinc or with a zinc alloy.
  • the invention is shown schematically in a figure 1. It can be seen from the drawing that the claimed gas mixture is used in such a way that during normal operation no large amounts of gas are required for injection into the furnace trunk 1.
  • the furnace trunk 1 Into the metal bath 2 located in the container 6, the furnace trunk 1, through which the metal strip 3 to be coated is inserted, emerges obliquely.
  • the metal strip 3 dips into the metal or coating bath 2, is deflected by the deflection roller 7 and exits at 8 from the metal bath. Above the exit point scraper nozzles 9 are arranged.
  • a separating gas layer of the claimed gas mixture between the surface of the metal bath 2 and a gas mixture 5 commonly used in the furnace trunk, consisting of nitrogen and hydrogen. With the use of a separating gas, the zinc sublimation in the continuous hot dipping refinement is at least largely reduced or completely avoided.

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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)
  • Materials For Medical Uses (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention relates to a method for suppressing zinc evaporation in the hot dip metal coating of a steel strip with zinc or zinc alloys. According to the invention, a separation gas layer is provided above the metal bath, said gas being selected from argon, butane, krypton, propane, sulphur dioxide, hydrogen sulphide, xenon, acetylene, arsine, boron trichloride, boron trifluoride, butene, dichlorosilane, disilane, ethylene oxide, tetrafluoromethane, monochlorodifluoromethane, trifluoromethane, hexafluoroethane, tetrafluoroethene, isobutane, nitrogen dioxide, nitrogen(III) fluoride, nitrogen oxide, phosphine, propene, silane, silicon tetrafluoride, silicon tetrachloride, sulphur hexafluoride, sulphur tetrafluoride, tungsten hexafluoride, or from an arbitrary combination of the aforementioned gases to form a gas mixture with or without argon. Said gases have a poor conductivity and are suitable for preventing gaseous turbulence.

Description

Die Erfindung betrifft ein Verfahren zur Unterdrückung der Zinkverdampfung beim Schmelztauchbeschichten eines Stahlbandes mit Zink oder Zinklegierungen.The invention relates to a method for suppressing the zinc evaporation in the hot dip coating of a steel strip with zinc or zinc alloys.

Bei der kontinuierlichen Schmelztauchveredelung und speziell der Feuerverzinkung von Metallbändern tritt der Effekt der Sublimation des Beschichtungsmetalls auf. Dies ist besonders kritisch, da die Sublimation auch im Ofenraum der vorgelagerten Bandglühung und Oberflächenaktivierung stattfindet. In diesem Aggregat liegt üblicherweise eine Wasserstoff-/Stickstoffatmosphäre vor. Das Sublimat dringt gegen den Bandlauf zurück und lagert sich an kälteren Stellen im Ofen ab. Dieser Effekt wird durch die Anwesenheit von Wasserstoff gefördert. Dieser Effekt ist bekannt und führt mit zunehmender Sublimatbildung zu Oberflächenfehler auf dem zu beschichtenden Metallband.In the case of continuous hot-dip finishing and especially hot-dip galvanizing of metal strips, the effect of sublimation of the coating metal occurs. This is particularly critical because the sublimation also takes place in the furnace chamber of the upstream strip annealing and surface activation. In this unit is usually present a hydrogen / nitrogen atmosphere. The sublimate penetrates back against the strip and settles in colder places in the oven. This effect is promoted by the presence of hydrogen. This effect is known and leads with increasing Sublimatbildung to surface defects on the metal strip to be coated.

Aus dem Stand der Technik ist bekannt, dass durch eine Zugabe von Feuchte bzw. von Kohlenmonoxid/-dioxid der Sublimationseffekt nachhaltig gehemmt und sogar unterdrückt werden kann.From the prior art it is known that by adding moisture or carbon monoxide / dioxide, the sublimation effect can be effectively inhibited and even suppressed.

Das Dokument DE 44 00 886 C2 beschreibt hierzu ein Verfahren zur Unterdrückung der Zinkverdampfung beim Schmelztauchbeschichten eines Stahlbandes mit Zink oder Zinklegierungen, wobei sich das Stahlband in einem Einlaufbereich unter einer Schutzgasatmosphäre aus einem Gemisch eines Inertgases mit Wasserstoff und/oder Kohlenmonoxid als reduzierenden Gasen und zusätzlich Kohlendioxid befindet. Die Schutzgasatmosphäre soll bis 20 Volumenprozent Wasserstoff und bis 10 Volumenprozent Kohlenmonoxid enthalten oder es soll der Schutzgasatmosphäre 0,05 bis 8 Volumenprozent Co2 zugemischt werden.The document DE 44 00 886 C2 describes a method for suppressing the zinc evaporation in the hot dip coating of a steel strip with zinc or zinc alloys, wherein the steel strip is in an inlet region under a protective gas atmosphere of a mixture of an inert gas with hydrogen and / or carbon monoxide as reducing gases and additionally carbon dioxide. The protective gas atmosphere should contain up to 20 percent by volume of hydrogen and up to 10 percent by volume of carbon monoxide, or it should be added to the inert gas atmosphere 0.05 to 8 percent by volume of Co 2 .

In dem Dokument EP 0 172 681 B1 wird ein Verfahren zur Unterdrückung der Entwicklung von Zinkdämpfen in einem kontinuierlichen Verfahren zur Heißtauchbeschichtung eines auf Eisen basierenden Metallbandes mit Zink- oder Zinklegierungen beschrieben, bei welchem das Band in einem Einlassbereich eingeschlossen ist. Dabei wird Wasserdampf in diesen Einlassbereich eingeleitet, um eine Atmosphäre aufrechtzuerhalten, die die Zinkdämpfe oxidiert, jedoch das Eisenband nicht oxidiert und die mindestens 264 ppm Wasserdampf und mindestens 1 Volumenprozent Wasserstoff enthält. Bevorzugt soll die Atmosphäre innerhalb des Einlaufbereichs 1 bis 8 Volumenprozent Wasserstoff und 300 - 4500 Volumen-ppm Wasserdampf enthalten, wobei der Abgleich mit einem inerten Gas bspw. Stickstoff erfolgt.In the document EP 0 172 681 B1 discloses a method for suppressing the development of zinc fumes in a continuous process for hot dip coating an iron-based metal strip with zinc or zinc alloys, in which the strip is enclosed in an inlet region. Water vapor is introduced into this inlet region to maintain an atmosphere which oxidizes the zinc vapors but does not oxidize the iron band and which contains at least 264 ppm of water vapor and at least 1% by volume of hydrogen. Preferably, the atmosphere within the inlet region should contain 1 to 8 percent by volume of hydrogen and 300-4500 percent by volume of water vapor, the adjustment being carried out with an inert gas, for example nitrogen.

Die im Stand der Technik verwendeten Gase oder Gasgemische führen aber auch zu einer Oxidation der Metallbandoberfläche, die eine fehlerfreie Beschichtung erschwert. Auch diese Problematik, insbesondere bei der Feuchte, ist bei der Produktion von feuerverzinkten Metallbändern hinlänglich bekannt.However, the gases or gas mixtures used in the prior art also lead to an oxidation of the metal strip surface, which makes an error-free coating difficult. This problem, especially in terms of humidity, is well known in the production of hot-dip galvanized metal strips.

Die US 6,224,692 B1 offenbart ein Verfahren und eine Vorrichtung zum Galvanisieren eines Metallbandes. Dabei wird das Metallband in ein Bad aus flüssigem Zink oder einer flüssigen Zinklegierung geführt, nachdem es zuvor einer Wasserstoff oder Inertgas-Atmosphäre ausgesetzt wurde, um eventuell auf der Oberfläche des Metallbandes vorhandene Restoxide zu entfernen.The US 6,224,692 B1 discloses a method and apparatus for electroplating a metal strip. In this case, the metal strip is passed into a bath of liquid zinc or a liquid zinc alloy after it has previously been exposed to a hydrogen or inert gas atmosphere to remove any residual oxides present on the surface of the metal strip.

Das Dokument US 4,862,825 beschreibt einen Abstreifprozess für ein Metallband, nachdem dieses ein Zinkbad durchlaufen hat. Nach dem Verlassen des Zinkbades wird das Metallband mit einem nicht oxidierenden Gas angeblasen, welches die Oxidation der noch frischen Zinkbeschichtung auf dem Metallband verhindern soll. Als Gas wird vorzugsweise Schwefelhexafluorid SF6 verwendet.The document US 4,862,825 describes a stripping process for a metal strip after it has passed through a zinc bath. After leaving the zinc bath, the metal strip is blown with a non-oxidizing gas intended to prevent the oxidation of the still fresh zinc coating on the metal strip. The gas used is preferably sulfur hexafluoride SF 6 .

Die japanische Druckschrift JP 07180014 offenbart ein Verfahren zum Unterdrücken einer Verdampfung von Zink an der Oberfläche eines Zink-Tauchbades zum Verzinken eines Metallbandes. Zu diesem Zweck ist vorgesehen, die Oberfläche des Tauchbades durch Beaufschlagung mit gasförmigem Stickstoff auf 420°C bis 440°C abzukühlen. Dies führt vorteilhafterweise dazu, dass das Zink an der Oberfläche des Tauchbades nicht mehr verdampft und dass das Metallband nach Durchlaufen des Zink-Bades eine Zinkbeschichtung mit einer sehr guten Oberfläche aufweist.The Japanese publication JP 07180014 discloses a method for suppressing evaporation of zinc on the surface of a zinc dipping bath for galvanizing a metal strip. For this purpose, the surface is provided of the immersion bath by applying gaseous nitrogen to 420 ° C to 440 ° C to cool. This advantageously leads to the fact that the zinc no longer evaporates on the surface of the immersion bath and that the metal strip after passing through the zinc bath has a zinc coating with a very good surface.

Und schließlich betrifft japanische Druckschrift JP-A-279 730 ein Verfahren zum Schmelztauchverzinken eines Metallbandes mit unterdrückter Zinkbadoxidation im Bereich des Badeintritts. Die Zinkoxidation wird dadurch unterdrückt, dass in einen Ofenrüssel, durch welchen das Metallband in das Zinkbad eingeführt wird, Inertgas mit einer Dichte > 2kg/m2 eingeleitet wird. Bei dem Inertgas handelt es sich um ein oder mindestens zwei der folgenden Inertgase Xenon, Krypton, Radon oder Schwefelhexafluorid. Diese Inertgase dienen hauptsächlich zur Vermeidung der Zinkoxidation. Die Verminderung einer Zinkverdampfung ist lediglich ein Nebeneffekt.And finally, Japanese pamphlet JP-A-279 730 a process for hot-dip galvanizing a metal strip with suppressed zinc bath oxidation in the area of Badeintritts. The zinc oxidation is suppressed by introducing inert gas having a density> 2 kg / m 2 into a furnace trunk through which the metal strip is introduced into the zinc bath. The inert gas is one or at least two of the following inert gases xenon, krypton, radon or sulfur hexafluoride. These inert gases are mainly used to prevent zinc oxidation. The reduction of zinc evaporation is only a side effect.

Xenon ist ein sehr teures Gas und deshalb für einen industriellen Massenbetrieb nicht einsetzbar.Xenon is a very expensive gas and therefore can not be used for industrial mass production.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein alternatives Trenngas zum Unterdrücken einer Zinkverdampfung beim Schmelztauchbeschichten eines Metallbandes mit Zink oder mit einer Zinklegierung bereitzustellen.Based on this prior art, the present invention seeks to provide an alternative separation gas for suppressing zinc evaporation in the hot dip coating of a metal strip with zinc or with a zinc alloy.

Diese Aufgabe wird durch das in dem Patentanspruch 1 beanspruchte Verfahren gelöst.This object is achieved by the method claimed in claim 1.

Die Verwendung von einem Gasgemisch bestehend aus Argon mit Beimischungen von Butan und/oder Propan als Trenngas bewirken vorteilhafterweise eine Unterdrückung der Zinksublimatbildung mit im Vergleich zu anderen bekannten Trenngasen geringen Kosten und ohne radioaktive Strahlung.The use of a gas mixture consisting of argon with admixtures of butane and / or propane as a separation gas advantageously cause a suppression of Zinksublimatbildung with compared to other known separation gases low cost and without radioactive radiation.

Die Erfindung wird in einer Figur 1 schematisch dargestellt. Anhand der Zeichnung ist erkennbar, dass das beanspruchte Gasgemisch in der Weise verwendet wird, dass beim normalen Betrieb keine hohen Gasmengen zur Eindüsung in den Ofenrüssel 1 erforderlich sind. In das im Behälter 6 befindliche Metallbad 2 taucht schräg der Ofenrüssel 1 ein, durch den das zu beschichtende Metallband 3 geführt ist. Das Metallband 3 taucht in das Metallbad bzw. Beschichtungsbad 2 ein, wird von der Umlenkrolle 7 umgelenkt und tritt bei 8 aus dem Metallbad aus. Oberhalb der Austrittsstelle sind Abstreifdüsen 9 angeordnet. In dem Ofenrüssel 1 befindet sich eine Trenngasschicht aus dem beanspruchten Gasgemisch zwischen der Oberfläche des Metallbades 2 und einem in dem Ofenrüssel üblicherweise verwendeten Gasgemisch 5, bestehend aus Stickstoff und Wasserstoff. Mit dem Einsatz eines Trenngases wird die Zinksublimation bei der kontinuierlichen Schmelztauchveredelung zumindest weitgehend reduziert bzw. ganz vermieden.The invention is shown schematically in a figure 1. It can be seen from the drawing that the claimed gas mixture is used in such a way that during normal operation no large amounts of gas are required for injection into the furnace trunk 1. Into the metal bath 2 located in the container 6, the furnace trunk 1, through which the metal strip 3 to be coated is inserted, emerges obliquely. The metal strip 3 dips into the metal or coating bath 2, is deflected by the deflection roller 7 and exits at 8 from the metal bath. Above the exit point scraper nozzles 9 are arranged. In the furnace trunk 1 is a separating gas layer of the claimed gas mixture between the surface of the metal bath 2 and a gas mixture 5 commonly used in the furnace trunk, consisting of nitrogen and hydrogen. With the use of a separating gas, the zinc sublimation in the continuous hot dipping refinement is at least largely reduced or completely avoided.

Claims (1)

  1. Method of suppressing zinc vaporisation in hot-dip coating of a steel strip (3) with zinc or a zinc alloy, wherein the steel strip (3) is led through a furnace blowpipe (1), which is immersed in the metal bath (2), and is deflected in the metal bath (2) by a deflecting roller (7) and subsequently exits upwardly from the metal bath (2), wherein a gas mixture as separating gas (4) is disposed in the furnace blowpipe (1) above the metal bath (2), characterised in that argon with admixtures of butane and/or propane is used as gas mixture.
EP03714895A 2002-06-28 2003-03-28 Use of separation gas in continuous hot dip metal finishing Expired - Lifetime EP1518004B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200331126T SI1518004T1 (en) 2002-06-28 2003-03-28 Use of separation gas in continuous hot dip metal finishing

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10229203 2002-06-28
DE10229203 2002-06-28
DE10233343 2002-07-23
DE10233343A DE10233343A1 (en) 2002-06-28 2002-07-23 Release gas used in continuous hot-dip coating
PCT/EP2003/003219 WO2004003250A1 (en) 2002-06-28 2003-03-28 Use of separation gas in continuous hot dip metal finishing

Publications (2)

Publication Number Publication Date
EP1518004A1 EP1518004A1 (en) 2005-03-30
EP1518004B1 true EP1518004B1 (en) 2007-12-26

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US (1) US20050233088A1 (en)
EP (1) EP1518004B1 (en)
JP (1) JP2005539136A (en)
CN (1) CN100422378C (en)
AT (1) ATE382104T1 (en)
AU (1) AU2003219109B2 (en)
BR (1) BR0311470A (en)
DE (1) DE50308889D1 (en)
ES (1) ES2297143T3 (en)
MX (1) MXPA04012328A (en)
PL (1) PL206283B1 (en)
RU (1) RU2319786C2 (en)
WO (1) WO2004003250A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013101131A1 (en) * 2013-02-05 2014-08-07 Thyssenkrupp Steel Europe Ag Apparatus for hot dip coating of metal strip
US9956576B2 (en) 2014-04-22 2018-05-01 Metokote Corporation Zinc rich coating process
CN110639233B (en) * 2019-08-20 2021-12-07 中船重工（邯郸）派瑞特种气体有限公司 Method for removing difluorodinitrogen and tetrafluorodinitrogen in nitrogen trifluoride

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AU421751B2 (en) * 1968-03-08 1972-02-25 Australian Wire Industries Pty, Ltd Improved method of and apparatus for wiping galvanised wire or strip
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JPH07180014A (en) * 1993-12-22 1995-07-18 Nippon Steel Corp Method for suppressing evaporation of zn from bath surface in snout for hot dip metal coating
JPH11279730A (en) * 1998-03-27 1999-10-12 Nisshin Steel Co Ltd Hot dip galvanizing method restraining oxidation of zinc
FR2782326B1 (en) * 1998-08-13 2000-09-15 Air Liquide METHOD FOR GALVANIZING A METAL STRIP
JP2006516302A (en) * 2002-09-18 2006-06-29 フジフィルム・エレクトロニック・マテリアルズ・ユーエスエイ・インコーポレイテッド Additive to prevent decomposition of alkyl-hydrogen siloxane
JP4243209B2 (en) * 2003-03-28 2009-03-25 富士フイルム株式会社 Insulating film forming material and insulating film using the same

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Publication number Publication date
CN1665954A (en) 2005-09-07
CN100422378C (en) 2008-10-01
ES2297143T3 (en) 2008-05-01
EP1518004A1 (en) 2005-03-30
JP2005539136A (en) 2005-12-22
DE50308889D1 (en) 2008-02-07
PL206283B1 (en) 2010-07-30
PL372068A1 (en) 2005-07-11
US20050233088A1 (en) 2005-10-20
WO2004003250A1 (en) 2004-01-08
RU2005102086A (en) 2005-07-20
AU2003219109A1 (en) 2004-01-19
AU2003219109B2 (en) 2009-01-22
MXPA04012328A (en) 2005-04-08
ATE382104T1 (en) 2008-01-15
RU2319786C2 (en) 2008-03-20
BR0311470A (en) 2005-03-15

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