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WO2025003725A1 - Procédé de revêtement productif pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud revêtue métallique - Google Patents

Procédé de revêtement productif pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud revêtue métallique Download PDF

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Publication number
WO2025003725A1
WO2025003725A1 PCT/IB2023/056700 IB2023056700W WO2025003725A1 WO 2025003725 A1 WO2025003725 A1 WO 2025003725A1 IB 2023056700 W IB2023056700 W IB 2023056700W WO 2025003725 A1 WO2025003725 A1 WO 2025003725A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel sheet
chamber
hot rolled
pressurized chamber
metallic
Prior art date
Application number
PCT/IB2023/056700
Other languages
English (en)
Inventor
Eric Gailly
Nauwfel Amimi
Eric Silberberg
Sergio PACE
Vincent RUWET
Original Assignee
Arcelormittal
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 Arcelormittal filed Critical Arcelormittal
Priority to PCT/IB2023/056700 priority Critical patent/WO2025003725A1/fr
Priority to PCT/IB2024/055843 priority patent/WO2025003821A1/fr
Publication of WO2025003725A1 publication Critical patent/WO2025003725A1/fr

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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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02—Pretreatment of the material to be coated
    • C23C14/021—Cleaning or etching treatments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02—Pretreatment of the material to be coated
    • C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
    • C23C14/025—Metallic sublayers
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
    • C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
    • 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
    • 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
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0222—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating in a reactive atmosphere, e.g. oxidising 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
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • 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
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/325—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with layers graded in composition or in physical properties
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/16—Oxidising using oxygen-containing compounds, e.g. water, carbon dioxide
    • C23C8/18—Oxidising of ferrous surfaces
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/80—After-treatment
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment

Definitions

  • the present invention deals with the vacuum coating of steel.
  • Metallic coating of steel sheets is currently performed by hot dipping in a metallic bath. Immediately above the bath, liquid metal is wiped by gas knives to adjust coating thickness. In the case of a galvanizing line, the steel sheet must be heated from 500 to 550°C to pass in the metal bath while avoiding zinc solidification before the gas knives.
  • the coating thickness range of conventional hot dip coating technology is limited by the process. Bare spots may appear at the lower limit if the wiping pressure is excessive, or liquid metal dripping if the wiping pressure is insufficient at the upper limit of the coating thickness range. Furthermore, it is impossible to hot dip again a coating layer because the metal coating would melt.
  • Vacuum coating is the deposition of a source material, for example, from the crucible of a vacuum evaporator, on a substrate to form germs (nucleation), which gradually develop (growth) and result in an ordered coating layer.
  • Vacuum coating process is not limited regarding the thickness of the coating deposited. Vacuum deposition can be performed by several successive steps to increase the coating thickness.
  • Hot rolled steels are developed towards thinner gage down to 1.0 mm, allowing to spare the cold rolling process step.
  • the applications for hot rolled steels are increasing in the fields of automotive and general industry.
  • Hot rolled steels offers applications where a high corrosion resistance is needed, for examples chassis parts of automobile or in agricultural environment. It also offers application where a minimal corrosion resistance is needed. In other words, the thickness of the corrosion protection needed for hot rolled steels is wide.
  • the surface is covered by a mill scale resulting from the contact of hot steel with air at the hot rolling mill.
  • Said scale is composed of iron oxides which are layered.
  • the thickness of the scale is from 0.5 to 8 mm. It is porous and brittle and must be removed prior to coating, else the coating wouldn’t adhere to the hot rolled steel.
  • the patent CN 113846291 discloses a cleaning and coating-plating combined unit for a galvanized steel sheet and a production method of the cleaning and coating-plating combined unit.
  • the plasma cleaning can not only realize the descaling of a hot rolled sheet, but also realize the surface cleaning of a cold rolled sheet.
  • a first object of the present invention is to provide a manufacturing method to produce a coated steel sheet by vacuum deposition. This object is achieved by the method of claims 1 to 8.
  • a second object of the present invention is to provide an equipment able to produce a coated steel sheet by vacuum deposition. This object is achieved by the equipment of claims 9 to 13.
  • a third object of the present invention is to provide a coated hot rolled steel sheet. This object is achieved by the steel sheet of claims 14 to 18.
  • a first object of the invention is achieved by a method for manufacturing a steel sheet comprising the following steps: a. Providing a steel sheet 10, b. Descaling said steel sheet by acid pickling, c. Feeding said descaled steel sheet into a pressurized chamber 3 above the atmospheric pressure, said pressurized chamber comprising an inlet 2, and being connected via at least one sealing lock 20 to at least one vacuum deposition chamber 4, d. Depositing a metallic coating layer by vapor deposition.
  • the descaling at step b) occurs by acid pickling, preferably at a temperature from 60 to 90°C.
  • Acid pickling produces emissions of corrosive acidic vapor and droplets. Such vapor or droplets are highly corrosive. If they penetrate the vacuum chamber, they will deteriorate the equipment in chamber.
  • the acid pickling step can include a rinsing and a drying sub-step. However, this may not be sufficient to prevent acidic vapor or even droplets to be sucked by the low pressure of the vacuum chamber 5. The inventors have found that the pressurized chamber solves this issue.
  • the steel sheet After descaling by acid pickling, the steel sheet may be shortly exposed to air when transported to the vacuum deposition chamber. When the pickled surface is exposed to air, it becomes immediately oxidized by the oxygen of the atmosphere.
  • a resulting oxide is mainly composed of iron oxides.
  • it can also include aluminum oxides as well as magnesium oxides, depending on the chemical composition of the steel.
  • the thickness of this layer of metal oxides is from 3 to 60 nanometers, more usually from 3 to 20 nm.
  • the steel sheet enters the pressurized chamber through the inlet 2, which acts as a neck having closer walls than the chamber itself and forms a narrow passage.
  • the steel sheet leaves the pressurized chamber through the sealing lock 20.
  • a gas is blown into the pressurized chamber 3 to keep it at a pressure above atmospheric pressure, said gas being released through the inlet 2.
  • the gas can be blown by any mean.
  • the volume of the pressurized chamber can be continuously filled by a fan blowing gas into the pressurized chamber.
  • the pressure in the pressurized chamber is continuously monitored by adjusting the gas flow rate blown in said chamber according to said monitored pressure.
  • the flow rate filling the pressurized chamber is from 500 to 15 000 Nm 3 /h.
  • said flow rate is of more than 2 000 Nm 3 /h, advantageously more than 5 000 or even 10 000 Nm 3 /h.
  • Nm 3 means normal cubic meter.
  • 1 Nm 3 is the amount of gas which when dry, occupies 1 m3 at a temperature of 0°C and at an absolute pressure of 101 ,3 kPa.
  • Nm 3 /h is a unit for volumetric flow rate of gas at a temperature of 0 °C and pressure of 101 ,3 kPa, expressed in m 3 /h.
  • the pressurized chamber of step c) has a pressure from 0.1 to 200 mbar above the atmospheric pressure or even better a pressure from 10 to 150 mbar or from 50 to 150 mbar above the atmospheric pressure.
  • the sealing lock 20 may not be tight enough and the vacuum may be broken in the vacuum chamber.
  • the pressure in the pressurized chamber is of more than 20 mbar over the atmospheric pressure, advantageously more than 40 mbar, or even more than 60 mbar.
  • the pressurized chamber is filled with inert gas, for example argon.
  • the pressurized chamber is filled with filtered and dried air sucked outside a building that houses said pressurized chamber. Outside air is filtered to remove impurities and dried to remove moisture.
  • the steel sheet After leaving the pressurized chamber, the steel sheet is transported towards the vacuum chamber. This may occur for example by multistage differential sealing locks which introduce the steel sheet progressively into lower pressure.
  • a primer layer having a thickness from 2 to 15 nm is applied under vacuum on the steel sheet.
  • This primer layer can be applied on the steel sheet by any mean. For example, it is applied by magnetron sputtering.
  • Optional heating can be carried out by any mean, for example by induction.
  • the inductor to heat the steel sheet can be placed outside the vacuum chamber.
  • the metallic coating can be applied on the steel sheet by any known coating method under vacuum.
  • the metallic coating can be applied by a sonic vapor jet deposition process, which is also called JVD (Jet Vapor Deposition), by an electron gun deposition method, or by plasma-assisted evaporation.
  • JVD Jet Vapor Deposition
  • the JVD method is a vacuum deposition method in which metal vapor is generated by inductively heating a crucible.
  • Said crucible contains a bath of the coating metal in a vacuum enclosure.
  • the steam escapes from the crucible via a conduct that transports it to an exit orifice, which is preferably calibrated, to form a jet at the speed of sound directed at the surface of the substrate to be coated.
  • the coating layer is applied by jet vapor deposition at sonic speed.
  • the coating layer applied by vapor deposition in step d) has a thickness from 2.0 to 75.0 pm per side, advantageously from 10.0 to 55.0 pm.
  • the metallic coating consists of zinc and residual impurities coming from the manufacturing process up to 0.1 weight %.
  • the metallic coating comprises from 0.5 to 40 weight % magnesium, residual impurities coming from the manufacturing process up to 0.1 weight %, the balance being zinc.
  • the metallic coating comprises from 0.5 to 20 weight % magnesium, and from 0.5 to 20 weight % aluminium, residual impurities coming from the manufacturing process up to 0.1 weight %, the balance being zinc.

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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)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une tôle d'acier revêtue qui comprend les étapes suivantes consistant à : a) fournir une tôle d'acier (10) ; b) décalaminer ladite tôle d'acier par décapage acide ; c) amener ladite tôle d'acier décalaminée dans une chambre sous pression (3) dont la pression est supérieure à la pression atmosphérique, ladite chambre sous pression comprenant une entrée (2), et étant reliée par l'intermédiaire d'au moins un sas d'étanchéité (20) à au moins une chambre de dépôt sous vide (4) ; d) déposer une couche de revêtement métallique par dépôt en phase vapeur.
PCT/IB2023/056700 2023-06-28 2023-06-28 Procédé de revêtement productif pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud revêtue métallique WO2025003725A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IB2023/056700 WO2025003725A1 (fr) 2023-06-28 2023-06-28 Procédé de revêtement productif pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud revêtue métallique
PCT/IB2024/055843 WO2025003821A1 (fr) 2023-06-28 2024-06-14 Procédé de revêtement de production pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud, revêtue de métal

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PCT/IB2023/056700 WO2025003725A1 (fr) 2023-06-28 2023-06-28 Procédé de revêtement productif pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud revêtue métallique

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PCT/IB2024/055843 WO2025003821A1 (fr) 2023-06-28 2024-06-14 Procédé de revêtement de production pour une tôle d'acier, équipement correspondant, tôle d'acier laminée à chaud, revêtue de métal

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267162A (ja) * 1985-09-20 1987-03-26 Nisshin Steel Co Ltd ブリスタ−の発生を防止した熱延めつき鋼板の製造方法
JPS6293371A (ja) * 1985-10-17 1987-04-28 Kobe Steel Ltd 連続材料の真空処理装置
JPH05186863A (ja) * 1991-12-28 1993-07-27 Nisshin Steel Co Ltd めっき密着性に優れた蒸着亜鉛めっき鋼板の製造方法
US20170114467A1 (en) * 2014-04-04 2017-04-27 Arcelormittal Multi-layer substrate and fabrication method
US20190085445A1 (en) * 2016-05-25 2019-03-21 Sms Group Gmbh Method and installation for coating a scaled hot-rolled strip
CN113846291A (zh) 2020-06-28 2021-12-28 宝山钢铁股份有限公司 一种镀锌钢板/卷的清洗涂镀联合机组及其生产方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169082A (en) * 1981-04-08 1982-10-18 Mitsubishi Heavy Ind Ltd Continuous vacuum vapor-depositing method
JPH0488163A (ja) * 1990-07-31 1992-03-23 Mitsubishi Heavy Ind Ltd 真空蒸着亜鉛めっき装置
DE102018222063A1 (de) * 2018-12-18 2020-06-18 Volkswagen Aktiengesellschaft Stahlsubstrat zur Herstellung eines warmumgeformten und pressgehärteten Stahlblechbauteils sowie Warmumformverfahren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6267162A (ja) * 1985-09-20 1987-03-26 Nisshin Steel Co Ltd ブリスタ−の発生を防止した熱延めつき鋼板の製造方法
JPS6293371A (ja) * 1985-10-17 1987-04-28 Kobe Steel Ltd 連続材料の真空処理装置
JPH05186863A (ja) * 1991-12-28 1993-07-27 Nisshin Steel Co Ltd めっき密着性に優れた蒸着亜鉛めっき鋼板の製造方法
US20170114467A1 (en) * 2014-04-04 2017-04-27 Arcelormittal Multi-layer substrate and fabrication method
US20190085445A1 (en) * 2016-05-25 2019-03-21 Sms Group Gmbh Method and installation for coating a scaled hot-rolled strip
CN113846291A (zh) 2020-06-28 2021-12-28 宝山钢铁股份有限公司 一种镀锌钢板/卷的清洗涂镀联合机组及其生产方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DAN ATASI ET AL: "A review on physical vapor deposition-based metallic coatings on steel as an alternative to conventional galvanized coatings", JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, SPRINGER NEW YORK LLC, US, vol. 19, no. 2, 19 January 2022 (2022-01-19), pages 403 - 438, XP037730290, ISSN: 1547-0091, [retrieved on 20220119], DOI: 10.1007/S11998-021-00564-Z *

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