EP0122856A1 - Verfahren und Vorrichtung zum kontinuierlichen Überziehen eines Bleches mit einem oxydierbaren Überzug - Google Patents

Verfahren und Vorrichtung zum kontinuierlichen Überziehen eines Bleches mit einem oxydierbaren Überzug Download PDF

Info

Publication number
EP0122856A1
EP0122856A1 EP84400723A EP84400723A EP0122856A1 EP 0122856 A1 EP0122856 A1 EP 0122856A1 EP 84400723 A EP84400723 A EP 84400723A EP 84400723 A EP84400723 A EP 84400723A EP 0122856 A1 EP0122856 A1 EP 0122856A1
Authority
EP
European Patent Office
Prior art keywords
gas
substance
strip
enclosure
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.)
Granted
Application number
EP84400723A
Other languages
English (en)
French (fr)
Other versions
EP0122856B1 (de
Inventor
Jean-Paul Hennechart
Bernard Bramaud
François Prat
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.)
GALVANOR ZIEGLER
Original Assignee
GALVANOR ZIEGLER
Ziegler SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GALVANOR ZIEGLER, Ziegler SA filed Critical GALVANOR ZIEGLER
Priority to AT84400723T priority Critical patent/ATE34780T1/de
Publication of EP0122856A1 publication Critical patent/EP0122856A1/de
Application granted granted Critical
Publication of EP0122856B1 publication Critical patent/EP0122856B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • 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
    • C23C2/26—After-treatment
    • C23C2/261—After-treatment in a gas atmosphere, e.g. inert or reducing atmosphere
    • 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
    • C23C2/26—After-treatment
    • C23C2/265—After-treatment by applying solid particles to the molten coating

Definitions

  • the present invention relates to a method and an installation for the continuous deposition of a coating on a strip, this deposition being carried out by passing the strip through a bath of coating material heated to deLadesonoointdefusion. Apply in carticu-Lier to the coating of a steel sheet with a layer of metaL such as zinc.
  • Patent FR 1,563,457 has described a more efficient method which consists in sending a layer of gas, preferably air in the case of a coating of lead and vapor of vapor, onto this layer of liquid coating material.
  • a layer of gas preferably air in the case of a coating of lead and vapor of vapor
  • this jet of gas being supplied by a nozzle in the form of a slot whose shape, position and orientation are precisely defined, as well as the gas pressure, in order to provide a jet in Blade shape which removes the external fraction of the liquid thickness and causes it to fall back towards the bath, causing with it the grime and oxides which could come from the surface of the bath.
  • this gas is compressed air in which fine solid zinc particles have been introduced.
  • a suction mouth is placed in the immediate vicinity of the blowing nozzle and the sucked air is recycled after filtration.
  • the main object of the present invention is to reduce the consumption of high purity inert gas without exaggerated increase in the complication of the installation, so as to achieve a total significant reduction in cost prices.
  • Another object of the invention is an improvement in the quality of the product by better regularity of the crystallization.
  • the invention therefore provides a process for continuously coating a. strip using an oxidizable coating material, method according to which the strip is passed through a bath containing the coating material in the liquid state; the strip is brought out of this bath in an ascending direction; it is subjected to a control operation of the thickness of the layer of liquid coating material entrained by the strip, this control operation being carried out in an enclosure substantially isolated from the atmosphere and containing a first non-oxidizing or weakly oxidizing gas.
  • the regularization operation being optionally followed by a germ projection operation during spraying, a second gas charged with crystallization seeds of said coating material is sprayed onto the coating material still liquid, this gas then being at least partially recycled, which has the particularity that one purifies at least a part of the first gas and / or at least a part of the second gas by bringing it into contact with a reducing substance to reduce its oxygen content below a value chosen to The advance.
  • the combination of known recycling with purification carried out during this recycling allows very precise control of the oxygen content of the gas, and great flexibility in adapting this content to needs.
  • the quantity of reducing substance required is low, since it only corresponds, in normal operation, to compensating for the influx of oxygen, and it adjusts to requirements.
  • the coating thickness control and germ blowing operations take place in a common enclosure, in which the first and second gases are mixed.
  • the quality is further improved by virtue of the fact that the strip can be protected from the atmosphere until crystallization, and the installation is simplified due to the existence of a single enclosure and, possibly, of a single purification device, placed on one or the other of the recycling circuits or at a point common to these two circuits.
  • the purification of the second gas When the purification of the second gas is carried out, the purification and the introduction of crystallization seeds are carried out simultaneously in said second gas before being used for the projection of germs.
  • This reduction reaction can be improved by injecting a hydrocarbon, in small quantity, The substance which gives rise to germs, zinc for example, then playing more than the rattle of catalyst in the hydrocarbon-oxygen reaction, in addition to its possible clean reducE role.
  • the second gas is brought, which contains the result of the oxidation of said substance and optionally a part of the unreacted substance, at the temperature conditions suitable for said germ projection operation.
  • the reducing substance is introduced into the second gas in the vapor state and after the oxidation of part of this vapor, the second gas is cooled to cause the said substance to form the germs by condensation in the state. solid.
  • the gas to be purified is brought into contact with a hot surface, in the presence of the reducing substance.
  • a hot surface in the presence of the reducing substance.
  • This hot surface can be formed by plates heated by an appropriate means, but also by the sheet itself leaving the bath, in the case where the metallic coating bath is at high temperature (manufacture of aluminized sheet for example).
  • This modality is particularly suitable in the case where one wishes to be able to use at will or to leave at a standstill the minimized flowering equipment.
  • this modality can be implemented by acting as well on the first gas as on the second gas, the seeds of crystallization being introduced into the latter for example in a classical manner. It can also be implemented inside the enclosure common to the two circuits if there is one.
  • the invention also provides, for the implementation of the process which has just been described, an installation comprising means for successively continuously passing a strip through a molten bath of material. coating, to bring this strip out of the bath in an upward direction, means for regulating the thickness of the layer of coating material Licuide entrained by the strip, these means being able to comprise at least one wiping nozzle arranged to blow a jet of gas in the form of a blade in the direction of the band, these means being arranged inside an enclosure open downwards and comprising lateral walls which plunge into the bath and an upper wall having a narrow slot intended for the outlet of the strip, the enclosure being associated with a circuit for recycling the gas which it contains and for sending this gas to the spinning nozzle (s), the installation further comprising at least one blowing nozzle for cooling the strip below the solidification point of the coating material and optionally projecting on it crystallization seeds, this blowing nozzle being associated with a circuit for recycling the second gas which comp orte means for introducing seeds of crystallization in said second gas upstream
  • the means for regulating the coating thickness and the germ blowing nozzle (s) are arranged in a common enclosure and said means for introducing the reducing substance (s) and for bringing the gas to the reaction temperature are arranged either in the enclosures, or in only one of the circuits for recycling.
  • the means for introducing the reducing substance into the gas and bringing it to reaction temperature consist of an enclosure traversed by the gas and containing a bath of reducing substance in the Liquid State and a plasma torch disposed above this bath for vaporizing said substance.
  • the purification reaction can be improved by adding a small amount of hydrocarbon.
  • the means for introducing the reducing substance into the gas consist of an enclosure containing a bath of reducing substance in the liquid state, and means for forcing the gas to lick the surface of this bath or to splash around.
  • the quantity of reducing substance introduced into the gas is a function of the temperature of the metallic bath of the reducing substance, and / or of the flow rate of gas bubbling through this enclosure.
  • the purification reaction can be improved by the injection of a hydrocarbon, in small quantity.
  • said means for introducing the reducing substance into the gas are arranged on the circuit for recycling the second gas, and between said means and the or germ blowing nozzles iL is provided means for cooling the second gas to the formation of germs by solid state condensation of the reducing substance.
  • the means for deoxidizing the gas are obtained by placing, in said enclosure, in the immediate vicinity of the narrow slot provided in the upper wall of the enclosure, plates heated to high temperature and by introducing into The enclosure, near these plates, a small amount of hydrocarbon in order to obtain the deoxidation of the gases contained in the enclosure.
  • This device can be installed at another location on either circuit, but the advantage of the arrangement just described is better control of the oxygen content.
  • the tape exit slot is the main passage for the entry of oxygen into the enclosure, by circulation against the current of the strip.
  • the strip to be coated arrives through the left on Figure 1, it first passes through an oven 2, controlled reducing atmosphere, which ensures both the cleaned e g and the surface preparation, optionally a heat treatment, and L ' adjustment of the sheet temperature to a temperature close to that of the bath.
  • the strip 1 guided by rollers 3, 4, 5 then descends into the bath of molten zinc 7, then rises vertically below the bath and is sent after a roll 6 to a winding station, not shown.
  • a sheath 8 which plunges into the bath and communicates with the oven 2, surrounds the strip on its path between the oven and the bath 7, so as to prevent any formation of oxide on the cleaned and hot metal before its contact with the zinc of the bath.
  • the strip On leaving the bath, the strip is surrounded by a bottomless box 9, the side walls of which plunge into molten zinc.
  • the roof of the box has a very narrow slot 10 for the exit of the strip 1 upwards.
  • nozzles 11 Inside the box are arranged two nozzles 11, in the form of an elongated slot, intended to regulate the thickness of the coating to the desired thickness, and, above the nozzles 11, two other nozzles 12, for cooling and / or minimized flowering.
  • the spinning nozzles 11 are supplied with nitrogen by a recycling circuit which comprises an extraction pipe 13 by which the gas is extracted from the box 9, a cold water cooler 14, which lowers the temperature of the gas to improve the operation of Pump 15 which follows Him.
  • a filter 16 is interposed between the refrigerant and the pump.
  • a supply line 17 connects the pump 15 to the dewatering nozzles 11. To this line 17 is connected a line 18 of nitrogen nitrogen provided with a valve and connected to a source of high purity nitrogen 19.
  • the minimized flowering nozzles are supplied by an analogous circuit, comprising an extraction line 20, a coolant 21, a pump 22 and a supply line 23, but without an auxiliary line.
  • a purification device connected to the circuit of the wiping gas and in this case it can be constituted by means of injecting a gaseous or liquid hydrocarbon, or a similar substance and a hot surface which comes hit The gas.
  • a purification device placed in the box 9, near the slot 10.
  • This device may include one or more hot surfaces.
  • the injection of hydrocarbon can be placed at another location in the circuits.
  • FIG. 2 shows an apparatus for introducing a reducing substance which is preferably placed at the spacing designated by 24 in FIG. 1.
  • This apparatus comprises a closed enclosure 30 which contains a bath of liquid z-inc 31 and, in addition, from this bath a plasma torch 32 arranged to vaporize the zinc of the bath.
  • the enclosure 30 is connected to the pipes 20, 23 by two pipes 33, 34, on either side of the pump 22, so as to constitute a circuit parallel to the circuit which comprises the nozzles 12 for the projection of germs.
  • An adjustment valve is provided on the gas inlet pipe 33 to the enclosure.
  • FIG. 3 shows a self-apparatus for introducing a reducing substance which can be substituted for that of FIG. 2. It comprises an enclosure 40 in which a bath of liquid zinc 41 is maintained at the temperature chosen to introduce the desired amount of zinc vapor in the gas. The free surface of the bath 41 is also defined accordingly.
  • the gas inlet 43 and outlet 42 conduits are arranged in the same manner as in the case of FIG. 2. If it is desired to increase the quantity of zinc vapor introduced into the gas, it is also possible to provide for bubbling a little gas by a cane 44 immersed in the bath, this cane being connected to a source of high purity nitrogen 46.
  • a tube 45 connected to the pipe 43, makes it possible to introduce a very small amount of 'hydrocarbon; the latter in the presence of zinc powder improves the deoxidation of the recirculating gas.
  • FIG. 5 represents another embodiment of purification equipment.
  • an enclosure 50 In an enclosure 50 are arranged two concentric nozzles supplied 51, 52, the first of which is supplied with gas to be purified through an inlet pipe 53, provided with a valve 54, and the second is supplied with methane, or another hydrocarbon, via a supply line 55 provided with a valve 56.
  • the mixture of gas to be purified and methane is sprayed onto a plate 57 heated for example by resistors up to a temperature sufficient for the Free oxygen to disappear .
  • the purified gas is returned in circuit by a return line 58.
  • Such equipment can be arranged both in the position provided in 24 in FIG. 1, as in the position identified in 25. If it is in position 24, a conventional device for introducing germs must be provided.
  • two plates 60 are arranged on either side of the slot 10 through which the strip 1 leaves the enclosure 9, which corresponds to position 26 of Figure 1. These plates 60 are heated by resistors 61 to a temperature such that the oxygen entering through the slot 10 against the current of the strip 1 immediately reacts on the methane introduced into the gas near the hot surfaces.
  • the zinc vaporization device and the methane injection were out of service.
  • the oxygen content of the nitrogen in circulation was 2%.
  • the oxygen content in the circulating nitrogen was less than 200 ppm.
  • the device of FIG. 3 was used.
  • the temperature of the zinc in the annexed crucible was 500 ° C. and the flow rate of nitrogen washing the surface of this crucible was 25 m 3 / h, The nitrogen flow bubbling through the crucible was 2 m 3 / h and The quantity of methane injected was 1 m 3 / h.
  • An oxygen content in nitrogen was also obtained of less than 200 ppm.
  • the device of FIG. 4 was used, the methane flow rate injected was 2 m 3 / h, and the temperature of the hot surface 60 was 700 ° C. An oxygen content in nitrogen of 10 to 20 ppm was obtained.
  • the device of FIG. 4 therefore makes it possible to obtain very high purities of oxygen, it must however be observed that it does not provide germs for the minimized flowering nozzles. If this is necessary, a separate diet should be provided for these germs. It is for example possible to operate in parallel a zinc vaporization device according to FIG. 2 or 3.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating With Molten Metal (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Catalysts (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Chemical Vapour Deposition (AREA)
  • Wrappers (AREA)
EP84400723A 1983-04-13 1984-04-11 Verfahren und Vorrichtung zum kontinuierlichen Überziehen eines Bleches mit einem oxydierbaren Überzug Expired EP0122856B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400723T ATE34780T1 (de) 1983-04-13 1984-04-11 Verfahren und vorrichtung zum kontinuierlichen ueberziehen eines bleches mit einem oxydierbaren ueberzug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8306056A FR2544337B1 (fr) 1983-04-13 1983-04-13 Procede et installation pour le revetement en continu d'une bande a l'aide d'un revetement oxydable
FR8306056 1983-04-13

Publications (2)

Publication Number Publication Date
EP0122856A1 true EP0122856A1 (de) 1984-10-24
EP0122856B1 EP0122856B1 (de) 1988-06-01

Family

ID=9287818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400723A Expired EP0122856B1 (de) 1983-04-13 1984-04-11 Verfahren und Vorrichtung zum kontinuierlichen Überziehen eines Bleches mit einem oxydierbaren Überzug

Country Status (8)

Country Link
US (1) US4612215A (de)
EP (1) EP0122856B1 (de)
JP (1) JPS59205463A (de)
AT (1) ATE34780T1 (de)
CA (1) CA1251364A (de)
DE (2) DE3471691D1 (de)
ES (1) ES8501805A1 (de)
FR (1) FR2544337B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045349A1 (de) * 2007-10-05 2009-04-08 Linde Aktiengesellschaft Vorrichtung und Verfahren zur durchgehenden feuerverzinkten Beschichtung von Metallstreifen
WO2010130884A1 (fr) * 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procédé de fabrication d'une bande métallique revêtue présentant un aspect amélioré
WO2010130890A1 (fr) * 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procédé de fabrication d'une bande métallique revêtue présentant un aspect amélioré
ES2725126R1 (es) * 2016-05-17 2019-09-27 Dongkuk Steel Mill Co Ltd Aparato para formar una nube de nitrogeno para fabricar una chapa de acero recubierta por inmersion en caliente con una calidad de la superficie excelente y metodo para fabricar una chapa de acero recubierta por inmersion en caliente de cinc y aluminio utilizando el mismo aparato.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631893A1 (de) * 1986-09-19 1988-03-31 Paul Fontaine Verfahren und vorrichtung zum abstreifen von mit schmelzfluessigem material beschichtetem blech
FR2608945B1 (fr) * 1986-12-31 1990-01-12 Stein Heurtey Perfectionnements apportes aux systemes d'essorage, par soufflage de gaz, d'un revetement metallique depose sur une bande
DE4008738C1 (en) * 1989-06-07 1990-11-08 Hoesch Stahl Ag, 4600 Dortmund, De Improving surface quality of steel strip or sheet - by coating with aluminium zinc alloy including silicon
FR2807070B1 (fr) * 2000-03-28 2002-05-17 Delot Process Sa Procede et dispositif pour realiser un revetement metallique sur un objet sortant d'un bain de metal fondu
DE10333766B4 (de) * 2003-07-23 2009-01-22 Thyssenkrupp Steel Ag Verfahren und Vorrichtung zum Schmelztauchbeschichten von Metallband
JP4451194B2 (ja) * 2004-04-13 2010-04-14 三菱日立製鉄機械株式会社 液体ワイピング装置
US20050281953A1 (en) * 2004-06-21 2005-12-22 Carroll Kevin R Coating apparatus and method
EP2166124A1 (de) * 2008-09-12 2010-03-24 Linde AG Verfahren und Vorrichtung zur kontinuierlichen Schmelztauchbeschichtung von Metallbändern
US9863029B2 (en) * 2012-08-01 2018-01-09 Dongkuk Steel Mill Co., Ltd. Apparatus for forming nitrogen cloud to produce hot dip coated steel sheet
DE102015216721B3 (de) * 2015-09-01 2016-11-24 Fontaine Engineering Und Maschinen Gmbh Vorrichtung zum Behandeln eines Metallbandes
DE102016222230A1 (de) 2016-08-26 2018-03-01 Sms Group Gmbh Verfahren und Beschichtungseinrichtung zum Beschichten eines Metallbandes
DE102017109559B3 (de) 2017-05-04 2018-07-26 Fontaine Engineering Und Maschinen Gmbh Vorrichtung zum Behandeln eines Metallbandes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773495A (en) * 1928-08-21 1930-08-19 Newhall Henry B Corp Process and apparatus for treating galvanized articles
US2889803A (en) * 1956-05-29 1959-06-09 William S Pearson Galvanizing means
FR2454470A1 (fr) * 1979-04-16 1980-11-14 Armco Inc Procede et appareil de revetement en continu d'une bande de metal ferreux
EP0066523A1 (de) * 1981-06-03 1982-12-08 Stein Heurtey Vorrichtung zur Oberflächenbehandlung galvanisierter Bleche in einer abgegrenzten Atmosphäre

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1588258A (en) * 1926-01-15 1926-06-08 Air Reduction Production of oxygen-free nitrogen
US2526731A (en) * 1945-02-13 1950-10-24 Armco Steel Corp Method of and apparatus for coating metallic strands with a metal coating
JPS5235722A (en) * 1975-09-16 1977-03-18 Nippon Steel Corp One side molten metal plating method
JPS55110716A (en) * 1979-02-20 1980-08-26 Ishikawajima Harima Heavy Ind Co Ltd Slab insertion device for heating furnace
US4330574A (en) * 1979-04-16 1982-05-18 Armco Inc. Finishing method for conventional hot dip coating of a ferrous base metal strip with a molten coating metal
AU525668B2 (en) * 1980-04-25 1982-11-18 Nippon Steel Corporation Hot dip galvanizing steel strip with zinc based alloys
JPS56158860A (en) * 1980-05-13 1981-12-07 Nippon Steel Corp Method and apparatus for removing fume from galvanizing
US4370357A (en) * 1981-03-11 1983-01-25 Cleveland Gear Company Process of continuous metal coating
US4444814A (en) * 1982-06-11 1984-04-24 Armco Inc. Finishing method and means for conventional hot-dip coating of a ferrous base metal strip with a molten coating metal using conventional finishing rolls
FR2544336B1 (fr) * 1983-04-13 1985-08-09 Ziegler Sa Installation pour le revetement en continu de bande, notamment pour la galvanisation de tole d'acier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773495A (en) * 1928-08-21 1930-08-19 Newhall Henry B Corp Process and apparatus for treating galvanized articles
US2889803A (en) * 1956-05-29 1959-06-09 William S Pearson Galvanizing means
FR2454470A1 (fr) * 1979-04-16 1980-11-14 Armco Inc Procede et appareil de revetement en continu d'une bande de metal ferreux
EP0066523A1 (de) * 1981-06-03 1982-12-08 Stein Heurtey Vorrichtung zur Oberflächenbehandlung galvanisierter Bleche in einer abgegrenzten Atmosphäre

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 4, no. 173, 29 novembre 1980, page 655 C 32; & JP-A-55 110 766 (SHIN NIPPON SEITUTSU K.K.) 26-08-1980 *
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 44, 19 mars 1982, page 922 C 95; & JP -A-56 158 860 (SHIN NIPPON SEITETSU K.K.) 07-12-1981 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045349A1 (de) * 2007-10-05 2009-04-08 Linde Aktiengesellschaft Vorrichtung und Verfahren zur durchgehenden feuerverzinkten Beschichtung von Metallstreifen
US9598754B2 (en) 2007-10-05 2017-03-21 Linde Aktiengesellschaft Method for continuous hot-dip coating of metal strips
WO2010130895A1 (fr) * 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procede de fabrication d'une bande metallique revetue presentant un aspect ameliore
WO2010130890A1 (fr) * 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procédé de fabrication d'une bande métallique revêtue présentant un aspect amélioré
WO2010130883A1 (fr) * 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procede de fabrication d'une bande metallique revetue presentant un aspect ameliore
US9181614B2 (en) 2009-05-14 2015-11-10 ArcelorMittal Investigación y Desarrollo, S.L. Method for manufacturing a coated metal strip with an enhanced appearance
WO2010130884A1 (fr) * 2009-05-14 2010-11-18 Arcelormittal Investigacion Y Desarrollo Sl Procédé de fabrication d'une bande métallique revêtue présentant un aspect amélioré
US10344368B2 (en) 2009-05-14 2019-07-09 ArcelorMittal Investigación y Desarrollo, S.L. Coated metal strip having an improved appearance
US10724130B2 (en) 2009-05-14 2020-07-28 Arcelormittal Process for manufacturing a coated metal strip of improved appearance
US11098396B2 (en) 2009-05-14 2021-08-24 Arcelormittal Process for manufacturing a coated metal strip of improved appearance
US11371128B2 (en) 2009-05-14 2022-06-28 Arcelormittal Coated metal band having an improved appearance
US11597990B2 (en) 2009-05-14 2023-03-07 Arcelormittal Process for manufacturing a coated metal strip of improved appearance
ES2725126R1 (es) * 2016-05-17 2019-09-27 Dongkuk Steel Mill Co Ltd Aparato para formar una nube de nitrogeno para fabricar una chapa de acero recubierta por inmersion en caliente con una calidad de la superficie excelente y metodo para fabricar una chapa de acero recubierta por inmersion en caliente de cinc y aluminio utilizando el mismo aparato.

Also Published As

Publication number Publication date
JPH0534424B2 (de) 1993-05-24
FR2544337B1 (fr) 1985-08-09
EP0122856B1 (de) 1988-06-01
JPS59205463A (ja) 1984-11-21
US4612215A (en) 1986-09-16
DE3471691D1 (en) 1988-07-07
ES531555A0 (es) 1984-12-01
ES8501805A1 (es) 1984-12-01
ATE34780T1 (de) 1988-06-15
CA1251364A (fr) 1989-03-21
FR2544337A1 (fr) 1984-10-19
DE122856T1 (de) 1985-05-23

Similar Documents

Publication Publication Date Title
EP0122856B1 (de) Verfahren und Vorrichtung zum kontinuierlichen Überziehen eines Bleches mit einem oxydierbaren Überzug
JP4763953B2 (ja) 薄鋼ストリップの鋳造
EP0124408A1 (de) Vorrichtung zum kontinuierlichen Überziehen eines Bandes, insbesondere zum Feuerverzinken eines Stahlbleches
FR2501724A1 (fr) Procede et appareil de revetement en continu d'une bande de metal ferreux
CH670819A5 (de)
JPS6141755A (ja) 鉄基金属ストリツプ上への溶融亜鉛メツキ被覆のための仕上げ方法において亜鉛蒸気を制御する方法
CH670447A5 (de)
EP0196952B1 (de) Verfahren zur Herstellung beruhigten Stahls mit niedrigem Stickstoffgehalt
CA2482055C (en) Casting steel strip
FR2504036A1 (fr) Procede et dispositif pour empecher l'oxydation de brames de cuivre a la sortie d'une machine de coulee continue
FR2919876A1 (fr) Ligne combinee de recuit et de galvanisation et procede de transformation d'une ligne de recuit continu en une telle ligne combinee
EP0041010B2 (de) Herstellung von mit Metalloxidfilmen beschichteten Glasscheiben
JPH07150320A (ja) 溶融金属めっき方法及び装置
KR20120092726A (ko) 주조 금속 스트립의 제조 방법 및 이에 상응하는 이중 롤 주조 설비
RU2358033C1 (ru) Способ и устройство для нанесения покрытия на металлическую полосу погружением в расплав
JPH03211263A (ja) 溶融めっき鋼板の製造装置
BE1005288A6 (fr) Installation de traitement continu d'une bande d'acier galvanisee et procede pour son utilisation.
EP4370719A1 (de) Flüssigkeitskühlung eines in einer kontinuierlichen leitung laufenden bandes
CH191023A (fr) Procédé pour recouvrir des objets métalliques avec d'autres métaux.
JPH07145465A (ja) 溶融金属めっき方法及び装置
JPH07145462A (ja) 溶融金属めっき方法及び装置
JPH07145463A (ja) 溶融金属めっき方法及び装置
JPH05239608A (ja) 溶融亜鉛めっき鋼板の製造方法及び製造装置
JPH0297654A (ja) 溶融亜鉛メッキ鋼板の製造方法
BE413215A (de)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE GB IT LU NL SE

ITCL It: translation for ep claims filed

Representative=s name: STUDIO TORTA SOCIETA' SEMPLICE

TCNL Nl: translation of patent claims filed
TCAT At: translation of patent claims filed
17P Request for examination filed

Effective date: 19850124

DET De: translation of patent claims
17Q First examination report despatched

Effective date: 19860515

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE GB IT LU NL SE

REF Corresponds to:

Ref document number: 34780

Country of ref document: AT

Date of ref document: 19880615

Kind code of ref document: T

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: GALVANOR ZIEGLER

REF Corresponds to:

Ref document number: 3471691

Country of ref document: DE

Date of ref document: 19880707

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: STUDIO TORTA SOCIETA' SEMPLICE

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: GALVANOR ZIEGLER TE PARIJS, FRANKRIJK.

BECN Be: change of holder's name

Effective date: 19880601

NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: IN PAT.BUL.20/88,PAGES 2378 AND 2419:CORR.:GALVANOR ZIEGLER PAT.BUL.21/88,PAGE 2561 SHOULD BE DELETED

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 84400723.7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030325

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030326

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030331

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20030401

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20030402

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20030403

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20030423

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20040410

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20040411

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040411

Ref country code: AT

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20040411

BE20 Be: patent expired

Owner name: *GALVANOR ZIEGLER

Effective date: 20040411

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

EUG Se: european patent has lapsed
NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20040411