MA44134B1 - Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées - Google Patents
Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage amélioréesInfo
- Publication number
- MA44134B1 MA44134B1 MA44134A MA44134A MA44134B1 MA 44134 B1 MA44134 B1 MA 44134B1 MA 44134 A MA44134 A MA 44134A MA 44134 A MA44134 A MA 44134A MA 44134 B1 MA44134 B1 MA 44134B1
- Authority
- MA
- Morocco
- Prior art keywords
- sheet
- steel sheet
- temperature
- producing
- segregation
- Prior art date
Links
Classifications
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- 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
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- 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
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- 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
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/22—Martempering
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- 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
- C21D6/00—Heat treatment of ferrous alloys
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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- 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
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- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
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- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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- 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—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
- C23C2/0224—Two or more thermal pretreatments
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
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- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
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- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
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- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
Abstract
Cette invention concerne un procédé de production d'une tôle d'acier possédant une microstructure constituée, en fraction de surface, de 20 à 50 % de ferrite intercritique, 10 à 20 % d'austénite résiduelle, 25 à 45 % de martensite revenue, 10 à 20 % de martensite fraîche, et de bainite, la somme de la martensite revenue et de la bainite étant comprise entre 30 et 60 %, le procédé comprenant les étapes successives suivantes : - la fourniture d'une tôle d'acier laminée à froid, la composition chimique de l'acier contenant, en % en poids : 0,18 % = c = 0,25 %, 0,9 % = si = 1,8 %, 0,02 % = al = 1,0 %, où 1,00 % = si + al = 2,35 %, 1,5 % = mn = 2,5 %, 0,010 % = nb = 0,035 %, 0,10 % = cr = 0,40 %, le reste étant du fe et les inévitables impuretés, - le recuit de la tôle d'acier à une température de recuit ta et pendant une durée de recuit ta, de manière à obtenir une structure comprenant de 50 à 80 % d'austénite et de 20 à 50 % de ferrite, - la trempe de la tôle à une vitesse de refroidissement comprise entre 20 et 50 °c/s jusqu'à une température de trempe qt comprise entre ms-50 °c et ms-5 °c, - le réchauffement la tôle jusqu'à une température de ségrégation pt comprise entre 375 et 450 °c et le maintien de la tôle à la température de ségrégation pt pendant un temps de ségrégation pt d'au moins 50 s., et - le refroidissement de la tôle à la température ambiante.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2015/059837 WO2017109538A1 (fr) | 2015-12-21 | 2015-12-21 | Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées |
PCT/EP2016/082192 WO2017108956A1 (fr) | 2015-12-21 | 2016-12-21 | Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées |
Publications (1)
Publication Number | Publication Date |
---|---|
MA44134B1 true MA44134B1 (fr) | 2020-06-30 |
Family
ID=55273296
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MA49585A MA49585B1 (fr) | 2015-12-21 | 2016-12-21 | Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées |
MA44134A MA44134B1 (fr) | 2015-12-21 | 2016-12-21 | Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MA49585A MA49585B1 (fr) | 2015-12-21 | 2016-12-21 | Procédé de production d'une tôle d'acier présentant une résistance, une ductilité et une aptitude au formage améliorées |
Country Status (15)
Country | Link |
---|---|
US (1) | US20190003005A1 (fr) |
EP (2) | EP3394296B1 (fr) |
JP (1) | JP6935420B2 (fr) |
KR (1) | KR102618089B1 (fr) |
CN (1) | CN108513591B (fr) |
BR (1) | BR112018012131B1 (fr) |
CA (1) | CA3008067C (fr) |
ES (2) | ES2780924T3 (fr) |
HU (2) | HUE056674T2 (fr) |
MA (2) | MA49585B1 (fr) |
MX (1) | MX2018007648A (fr) |
PL (2) | PL3394296T3 (fr) |
RU (1) | RU2716920C2 (fr) |
WO (2) | WO2017109538A1 (fr) |
ZA (1) | ZA201803917B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107597962A (zh) * | 2017-08-15 | 2018-01-19 | 上海交通大学 | 一种热冲压与模具修边的集成工艺 |
WO2019122964A1 (fr) * | 2017-12-19 | 2019-06-27 | Arcelormittal | Tôle d'acier présentant une ténacité, une ductilité et une résistance excellentes, et son procédé de fabrication |
WO2019122961A1 (fr) | 2017-12-19 | 2019-06-27 | Arcelormittal | Tôle d'acier à haute résistance et haute aptitude au formage et son procédé de fabrication |
WO2020058748A1 (fr) * | 2018-09-20 | 2020-03-26 | Arcelormittal | Tôle d'acier laminée à froid et revêtue et son procédé de fabrication |
CA3149331A1 (fr) * | 2019-08-07 | 2021-02-11 | United States Steel Corporation | Produits en tole d'acier zinguee a ductilite elevee |
WO2021123889A1 (fr) * | 2019-12-19 | 2021-06-24 | Arcelormittal | Feuille d'acier laminée à chaud et traitée thermiquement et son procédé de fabrication |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060011274A1 (en) * | 2002-09-04 | 2006-01-19 | Colorado School Of Mines | Method for producing steel with retained austenite |
FR2850671B1 (fr) * | 2003-02-05 | 2006-05-19 | Usinor | Procede de fabrication d'une bande d'acier dual-phase a structure ferrito-martensitique, laminee a froid et bande obtenue |
EP1749895A1 (fr) * | 2005-08-04 | 2007-02-07 | ARCELOR France | Procédé de fabrication de tôles d'acier présentant une haute résistance et une excellente ductilité, et tôles ainsi produites |
JP5418047B2 (ja) * | 2008-09-10 | 2014-02-19 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
US10023947B2 (en) * | 2009-11-30 | 2018-07-17 | Nippon Steel & Sumitomo Metal Corporation | High strength steel plate with ultimate tensile strength of 900 MPa or more excellent in hydrogen embrittlement resistance and method of production of same |
JP5333298B2 (ja) * | 2010-03-09 | 2013-11-06 | Jfeスチール株式会社 | 高強度鋼板の製造方法 |
KR20130036763A (ko) * | 2010-08-12 | 2013-04-12 | 제이에프이 스틸 가부시키가이샤 | 가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법 |
BR112013024984B1 (pt) * | 2011-03-28 | 2018-12-11 | Nippon Steel & Sumitomo Metal Corporation | chapa de aço laminada a quente e método de produção da mesma |
WO2012168564A1 (fr) * | 2011-06-07 | 2012-12-13 | Arcelormittal Investigación Y Desarrollo Sl | Tôle d'acier laminée à froid et revêtue de zinc ou d'alliage de zinc, procédé de fabrication et utilisation d'une telle tôle |
CA2850045C (fr) * | 2011-09-30 | 2016-04-12 | Nippon Steel & Sumitomo Metal Corporation | Feuille d'acier galvanisee et son procede de fabrication |
EP2762592B1 (fr) * | 2011-09-30 | 2018-04-25 | Nippon Steel & Sumitomo Metal Corporation | Feuille d'acier galvanisée par immersion à chaud à haute résistance et feuille d'acier galvanisée par immersion à chaud alliée à haute résistance, chacun ayant une résistance à la traction de 980 mpa ou plus, une excellente adhésion de placage, une excellente aptitude au formage et d'excellentes propriétés d'expansion des trous et leur procédé de fabrication |
JP5953695B2 (ja) * | 2011-09-30 | 2016-07-20 | 新日鐵住金株式会社 | めっき密着性と成形性に優れた高強度溶融亜鉛めっき鋼板とその製造方法 |
EP2765212B1 (fr) * | 2011-10-04 | 2017-05-17 | JFE Steel Corporation | Tôle d'acier à haute résistance et procédé de fabrication associé |
JP5348268B2 (ja) * | 2012-03-07 | 2013-11-20 | Jfeスチール株式会社 | 成形性に優れる高強度冷延鋼板およびその製造方法 |
WO2014020640A1 (fr) * | 2012-07-31 | 2014-02-06 | Jfeスチール株式会社 | Tôle d'acier galvanisée par immersion à chaud à résistance élevée qui présente une excellente aptitude au moulage et une excellente aptitude à la fixation de formes, ainsi que procédé de fabrication de cette dernière |
CN102952996A (zh) * | 2013-01-04 | 2013-03-06 | 鞍钢股份有限公司 | 一种高延伸率冷轧trip钢板及其制备方法 |
US20160017472A1 (en) * | 2013-03-11 | 2016-01-21 | Tata Steel Ijmuiden Bv | High strength hot dip galvanised complex phase steel strip |
JP5728115B1 (ja) * | 2013-09-27 | 2015-06-03 | 株式会社神戸製鋼所 | 延性および低温靭性に優れた高強度鋼板、並びにその製造方法 |
EP3167092B1 (fr) * | 2014-07-07 | 2018-03-28 | Tata Steel IJmuiden BV | Bande d'acier ayant une résistance élevée et une grande aptitude au formage, la bande d'acier ayant un revêtement à base de zinc par immersion à chaud |
-
2015
- 2015-12-21 WO PCT/IB2015/059837 patent/WO2017109538A1/fr active Application Filing
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2016
- 2016-12-21 BR BR112018012131-2A patent/BR112018012131B1/pt active IP Right Grant
- 2016-12-21 CN CN201680074873.4A patent/CN108513591B/zh active Active
- 2016-12-21 HU HUE19216515A patent/HUE056674T2/hu unknown
- 2016-12-21 ES ES16825409T patent/ES2780924T3/es active Active
- 2016-12-21 JP JP2018551520A patent/JP6935420B2/ja active Active
- 2016-12-21 MX MX2018007648A patent/MX2018007648A/es unknown
- 2016-12-21 EP EP16825409.2A patent/EP3394296B1/fr active Active
- 2016-12-21 WO PCT/EP2016/082192 patent/WO2017108956A1/fr active Application Filing
- 2016-12-21 CA CA3008067A patent/CA3008067C/fr active Active
- 2016-12-21 MA MA49585A patent/MA49585B1/fr unknown
- 2016-12-21 EP EP19216515.7A patent/EP3653737B1/fr active Active
- 2016-12-21 PL PL16825409T patent/PL3394296T3/pl unknown
- 2016-12-21 MA MA44134A patent/MA44134B1/fr unknown
- 2016-12-21 PL PL19216515T patent/PL3653737T3/pl unknown
- 2016-12-21 RU RU2018122302A patent/RU2716920C2/ru active
- 2016-12-21 KR KR1020187017595A patent/KR102618089B1/ko active IP Right Grant
- 2016-12-21 HU HUE16825409A patent/HUE049063T2/hu unknown
- 2016-12-21 US US16/064,513 patent/US20190003005A1/en active Pending
- 2016-12-21 ES ES19216515T patent/ES2899448T3/es active Active
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Also Published As
Publication number | Publication date |
---|---|
EP3653737B1 (fr) | 2021-10-27 |
EP3394296B1 (fr) | 2020-02-12 |
HUE049063T2 (hu) | 2020-09-28 |
RU2018122302A3 (fr) | 2020-01-28 |
JP6935420B2 (ja) | 2021-09-15 |
WO2017109538A1 (fr) | 2017-06-29 |
KR20180096638A (ko) | 2018-08-29 |
ES2899448T3 (es) | 2022-03-11 |
CN108513591B (zh) | 2020-04-28 |
BR112018012131B1 (pt) | 2021-09-28 |
MA49585A (fr) | 2021-04-28 |
ES2780924T3 (es) | 2020-08-27 |
US20190003005A1 (en) | 2019-01-03 |
WO2017108956A1 (fr) | 2017-06-29 |
CN108513591A (zh) | 2018-09-07 |
BR112018012131A2 (pt) | 2018-12-04 |
EP3653737A1 (fr) | 2020-05-20 |
PL3394296T3 (pl) | 2020-08-10 |
RU2716920C2 (ru) | 2020-03-17 |
CA3008067A1 (fr) | 2017-06-29 |
ZA201803917B (en) | 2019-02-27 |
MX2018007648A (es) | 2018-09-21 |
PL3653737T3 (pl) | 2022-02-07 |
KR102618089B1 (ko) | 2023-12-26 |
RU2018122302A (ru) | 2019-12-25 |
EP3394296A1 (fr) | 2018-10-31 |
MA49585B1 (fr) | 2021-10-29 |
HUE056674T2 (hu) | 2022-02-28 |
CA3008067C (fr) | 2023-09-05 |
JP2019505692A (ja) | 2019-02-28 |
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