WO2012146384A1 - Composite de feuillard en acier et son procédé de fabrication - Google Patents

Composite de feuillard en acier et son procédé de fabrication Download PDF

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Publication number
WO2012146384A1
WO2012146384A1 PCT/EP2012/001822 EP2012001822W WO2012146384A1 WO 2012146384 A1 WO2012146384 A1 WO 2012146384A1 EP 2012001822 W EP2012001822 W EP 2012001822W WO 2012146384 A1 WO2012146384 A1 WO 2012146384A1
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WO
WIPO (PCT)
Prior art keywords
hot
sheet
steel strip
formable
steel
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.)
Ceased
Application number
PCT/EP2012/001822
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English (en)
Inventor
Christiaan Theodorus Wilhelmus Lahaye
Albertus Johannes SCHOUWS
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.)
Tata Steel Nederland Technology BV
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Tata Steel Nederland Technology BV
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 Tata Steel Nederland Technology BV filed Critical Tata Steel Nederland Technology BV
Priority to CN201280027049.5A priority Critical patent/CN103582706A/zh
Priority to EP12720795.9A priority patent/EP2702178A1/fr
Publication of WO2012146384A1 publication Critical patent/WO2012146384A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering or brazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
    • B23K35/3053—Fe as the principal constituent
    • 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
    • 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
    • B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
    • 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
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • 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
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • 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
    • 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
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese

Definitions

  • the present invention relates to a hot-formable steel strip, sheet or blank, a method for the manufacture of the hot-formable steel strip sheet or blank and the use of the hot- formable steel strip, sheet or blank in hot-forming.
  • the present invention further relates to a process for manufacturing a hot-formed part and the hot-formed part thus formed.
  • Hot-forming is usually performed by providing a steel sheet blank, heating the blank in a heating furnace to a temperature between 800 and 1200°C, placing the heated blank in a hot forming press, forming the blank into a part in the hot forming press and hardening the hot formed part.
  • Zinc coated steel sheets are provided as hot dip galvanized steel sheets. These sheets are provided and subsequently subjected to a heat treatment between 800 and 1200 °C in the heating furnace of the hot-forming line. During the heat treatment a diffusion layer (zinc-iron alloy) and a thin layer of zinc oxide are formed. Although the diffusion layer provides protection against high temperature oxidation of the substrate and ensures good adhesion between the zinc coating and the substrate, the thin layer of zinc oxide has a negative impact on spot weldability. An additional process step to remove the zinc oxide layer is therefore required if hot-dip galvanised steel sheets are to be spot welded.
  • Al-Si coatings also rely on the formation of a diffusion layer to prevent against high temperature oxidation, which diffusion layer comprises oxides of aluminium and silicon.
  • a diffusion layer comprises oxides of aluminium and silicon.
  • Another object of the present invention is to provide a steel strip, sheet or blank that can be heated very fast in a hot-forming line.
  • Another object of the invention to provide a steel strip or blank having good weldability properties after hot-forming.
  • a further objective is to provide a steel strip sheet or blank having excellent formability after hot forming.
  • a further object of the invention to provide a process for the manufacture of a steel strip, sheet or blank having reduced susceptibility to high temperature oxidation and decarburisation, which process substantially avoids the processing issues disclosed hereinabove.
  • the first aspect of the invention relates to a hot-formable steel strip, sheet or blank which comprises a steel substrate and an oxidation resistant metallic clad layer on one or both sides of the steel substrate.
  • the oxidation resistant clad is adjacent to the steel substrate.
  • the hot-formable steel strip, sheet or blank exhibits improved resistance against high temperature oxidation and decarburisation at the steel substrate surface.
  • the steel, strip sheet or blank is substantially free of oxide scales after a heat-treatment between 800 and 1200'C. The substantial absence of oxide scales means that it is not necessary to remove oxide scales after the step of hot-forming, which is the case when uncoated steel strips are hot-formed.
  • a further advantage of the present invention is that the steel strip, sheet or blank is fully spot weldable because no deleterious oxide layer is formed as such.
  • Hot-forming may be defined as a process which comprises the steps of heating a steel substrate in a heating furnace to a temperature above Ac1 in order to austenise the steel substrate, transferring the austenised steel substrate to a press and press quenching the steel substrate to obtain a formed part having a high tensile strength.
  • the tooling between which the steel substrate is pressed has a lower temperature relative to the steel substrate that is being hot-formed.
  • the steel substrate contains in weight %: 0.15 - 0.5 C, 0.5 - 3.0 Mn, 0.1 - 2.5 Si, ⁇ 0.1 Al, ⁇ 1.0 Cr, ⁇ 0.2 Ti, ⁇ 0.1 P, ⁇ 0.05 S, ⁇ 0.08 B, ⁇ 0, 1 V, ⁇ 0.5 Mo, ⁇ 0.003 ppm Ca, optionally ⁇ 0.1 Nb, unavoidable impurities, the remainder being iron.
  • the steel substrate contains in weight %: 0.15 - 0.5 C, 0.5 - 3.0 Mn, 0.1 - 0.5 Si, ⁇ 0.1 Al, ⁇ 1.0 Cr, ⁇ 0.2 Ti, ⁇ 0.1 P, ⁇ 0.05 S, 0.0005 - 0.08 B, optionally ⁇ 0.1 Nb and/or ⁇ 0,1 V, preferably 0.15 - 0.5 C, 0.5 - 3.0 Mn, 0.1 - 0.5 Si, ⁇ 0.1 Al, ⁇ 1.0 Cr, ⁇ 0.2 Ti, ⁇ 0.1 P, ⁇ 0.05 S, 0.0005 - 0.015 B, optionally ⁇ 0.1 Nb and/or ⁇ 0, 1 V unavoidable impurities, the remainder being iron.
  • These steel types are suitable for hot forming.
  • the amount of boron is between 0.001 and 0.005 weight%.
  • the steel substrate contains in weight %: 0.15 - 0.45 C, 1.0 - 3.0 Mn, 1.0 - 2.5 Si, ⁇ 2.5 Al, ⁇ 1.0 Cr, ⁇ 0.06 P, ⁇ 0.03 S, ⁇ 0.5 Mo, ⁇ 0.1 Ti or ⁇ 0.1 V and ⁇ 0.003 ppm Ca, preferably 0.2 - 0.4 C, 1.5 - 2.5 Mn, 1.4 - 2.0 Si, ⁇ 0.6 Al, ⁇ 1.0 Cr, ⁇ 0.06 P, ⁇ 0.03 S, ⁇ 0.5 Mo, ⁇ 0.1 Ti or ⁇ 0.1 V and ⁇ 0.003 ppm Ca, unavoidable impurities, the remainder being iron.
  • the oxidation resistant metallic clad layer contains in weight %: ⁇ 0.15 C , 0.2 - 5 Mn , ⁇ 2 Si , ⁇ 2 Al , 5 - 30 Cr, optionally 15 - 25 Ni, and unavoidable impurities, the remainder being iron.
  • the steel substrate is a hot-formable steel substrate, which comprises an advanced high strength steel or ultra high strength steel.
  • Suitable steels include dual phase (DP) steel, transformation induced plasticity (TRIP) steel, TRIP assisted dual phase (TADP) steel and twinning induced plasticity (TWIP) steel.
  • the TWIP steel contains in weight % between 10 and 40 % manganese, preferably between 12 and 25 % manganese and up to 10 % aluminium.
  • the hot-formable steel strip, sheet or blank comprising any one the above steels exhibits improved strength and ductility characteristics relative to other high strength steels and carbon steels.
  • the oxidation resistant clad layer is a stainless steel.
  • a stainless steel clad layer did not oxidise during the heat treatment between 800 and 1200 ° C or when transferring the hot-formable steel strip, sheet or blank to the hot-forming press.
  • the clad stainless steel did not delaminate from the steel substrate and did not show any signs of cracking following the heat treatment and the step of hot-forming.
  • the oxidation resistant clad layer is a stainless steel selected from the group consisting of martensitic stainless steel, ferritic stainless steel and austenitic stainless steel.
  • Martensitic stainless steels in accordance with the invention comprise the following composition in weight %: 0.01 - 0.15 C, 10.0 - 30.0 Cr, 1.0 - 30 Ni, optionally 0 - 5.0 Cu, 0 - 2.5 Si, 0 -2.5 Al, 0 - 10.0 Mn and 0 - 10.0 Mo, the remainder being iron and unavoidable impurities.
  • Other elements including N, Nb, Ti, Ce, S and W can also be present but only in small amounts.
  • martensitic stainless steels afford high temperature oxidation resistance they are less oxidation resistant when compared to their ferritic and austenitic counterparts. On the other hand martensitic stainless steels are extremely strong and tough making such steels highly machinable.
  • Ferritic stainless steels in accordance with the invention comprise the following composition in weight %: 0.01 - 0.15 C, 5.0 - 25.0 Cr, optionally 0 - 3.0 Ni, 0 - 2.0 Al, 0 - 1.0 N and 0 - 5 Mo, the remainder being iron and unavoidable impurities.
  • Other elements including Nb, Cu, Ti, Si, Mn, Ce, S, W can also be present but only in small amounts.
  • Ferritic stainless steels generally have better engineering properties than austenitic grades, but have reduced oxidation resistance, due to the lower chromium and nickel content. They are usually less expensive than austenitic stainless steels for that reason.
  • Austenitic stainless steels used in accordance with the invention comprise the following composition in weight %: 0.01 - 0.15 C, 5.0 - 25.0 Cr, optionally 0 -20.0 Ni, 0.02 - 2.0 N and 0 -2.0 Mo, the remainder being iron and inevitable impurities. Other elements including S and Mn can also be present but only in small amounts. Austenitic steels are less susceptible to cracking when compared to martensitic steels and also offer excellent high temperature oxidation resistance by virtue of the high alloy contents that are used. Suitable stainless steel grades include stainless 316 and 304.
  • the oxidation resistant clad layer is titanium, aluminium or copper.
  • the inventors found that such clad layers reduce the formation of deleterious oxides during annealing or when transferring the hot-formable steel strip, sheet or blank to the hot-forming press.
  • the hot-formed part also showed no signs of oxide scale formation.
  • the hot-formable steel strip, sheet or blank has a thickness between 0.5 and 10 mm, preferably between 0.5 and 4 mm and more preferably between 0.5 and 2.5 mm.
  • the oxidation resistant metallic clad layer comprises 0.25 - 20 %, preferably 0.25 - 10 % and more preferably 0.25 - 6 % of the total thickness of the hot-formable steel strip, sheet or blank.
  • the thickness of the oxidation resistant clad layer should not exceed 20 % since this will compromise the overall strength of the hot-formable steel strip, sheet or blank.
  • the thickness of the clad layer should not be less than 0.25% of the total thickness of the hot-formable steel strip, sheet or blank otherwise the effectiveness of the clad layer against high temperature oxidation will be compromised.
  • the steel substrate has a tensile strength between 500 - 800 MPa before hot-forming.
  • Steel strips, sheets or blanks having such a tensile strength ensures that the hot-formable strip, sheet or blank is able to withstand the mechanical forces of the hot-forming process.
  • the corresponding hardened hot-formed part which is produced during hot-forming will exhibit a tensile strength between 1200 and 2000 MPa, which is largely dependent on the initial strength of the steel substrate.
  • a process for the manufacture of a hot-formable steel strip, sheet of blank which comprises the steps of providing a steel substrate and an oxidation resistant metallic layer, providing the oxidation resistant metallic layer on one or both sides of the steel substrate to form a stack package and roll bonding the stack package.
  • Al-Si and zinc based protective coatings rely on Fe diffusion to make the coating thermally stable and suitable for subsequent processing steps such as hot-forming.
  • the formation of such diffusion layers is the limiting factor in the process window for Al-Si and zinc based coated products.
  • a heating rate between 5 and 10 ° C/s is used when heating such coated steel substrates to above the austenisation temperature prior to hot-forming. Heating rates above 10 °C/s can result in zinc or aluminium undergoing a solid-liquid transition that may cause zinc or aluminium to drip from the substrate or even evaporate.
  • the present invention is provided with an oxidation resistant metallic clad layer, which clad layer is provided by roll bonding.
  • Metallic clad layers provided by roll bonding are advantageous since heating rates of 15 ° C/s or above can be used to reach the austenisation temperature. A heating rate between 50 and 100 °C can even be used, meaning that the coated substrate will no longer be the limiting factor of the process, rather the heating technology. This is made possible because the protective properties of the oxidation resistant metallic clad layer are not reliant on the formation of a diffusion layer.
  • Another advantage of the present invention is that roll bonding avoids the issues associated with zinc melting and vaporising together with the issue of liquid steel embrittlement.
  • the oxidation resistant metallic clad layer is also fully paintable and weldable.
  • it is not necessary to remove an oxide layer from the metallic clad layer. Such a step is required when conventional zinc coatings are used.
  • the hot-formable steel strip, sheet or blank is in full hard condition.
  • the hot-formable steel, strip sheet or blank can be supplied to the hot-forming manufacturer in full-hard condition.
  • full hard condition it is meant that the hot-formable steel strip, sheet or blank has not been annealed prior to subjecting the steel strip, sheet or blank to the heat treatment prior to hot-forming.
  • the steel substrate and the oxidation resistant metallic layer are deoxidised and cleaned prior to forming the stack package.
  • the oxidation resistant metallic layer are deoxidised and cleaned prior to forming the stack package.
  • the stack package is circumferentially welded before the step of roll bonding.
  • the steel substrate and the oxidation resistant metallic layer together, oxygen is prevented from contacting the interface therebetween, which would result in the formation of deleterious oxides at said interface.
  • the roll bonding is hot roll bonding or hot roll bonding followed by cold roll bonding.
  • hot roll bonding the stack package is heated and hot-rolled between 1250 ° C and 800 ° C.
  • the temperature after the final hot- rolling pass should be above the austenitic Ac1 temperature.
  • the steel strip, sheet or blank thus produced has an approximate thickness of 3 - 4 mm, which is then subjected to a controlled cooling to a coiling temperature in order to control phase transformations in the steel.
  • the steel strip, sheet or blank can subsequently be cold rolled.
  • a full hard product having a thickness between 0.3 and 2.5 mm, preferably between 1 and 2 mm can be formed.
  • the hot-formable steel strip, sheet or blank of the first aspect of the invention is used for hot-forming to form a part.
  • the hot- formable steel strip, sheet or blank is heated to a temperature between 800 and 1200 ° C in a heating furnace and subsequently transferred to a hot-forming press to be hot-formed.
  • oxide scales are absent from the hot-formable steel strip, sheet or blank upon entering the hot-forming press and after the step of hot-forming.
  • Both direct and indirect hot-forming processes are applicable to the invention.
  • Indirect hot-forming includes a step of pre-forming the hot-formable steel strip, sheet or blank in a pre-forming press prior to being transferred to the heating furnace.
  • a process for producing a hot-formed part which comprises the steps of:
  • the hot-formable steel strip, sheet or blank is heated at a rate of 15'C or above. This has the advantage that the time required to reach the austenisation temperature is reduced relative to substrates provided with Al- Si or zinc based protective coatings.
  • the hot-formed part produced according to the fourth aspect of the invention has a tensile strength above 1000 MPa, preferably between 1200 and 2000 MPa. This has the advantage that such parts are particularly suitable for use in the automotive sector.
  • Table 1 shows alloy compositions of steel substrates (A) and alloy compositions of oxidation resistant clad layers (B and C) used in accordance with the invention.
  • Steel compositions B and C relate to a stainless steel (austenitic grade EN1.4841) and (ferritic grade EN1.4742) respectively.
  • Figure 1 shows a cross section of a hot-formable steel strip, sheet or blank (1) according to the invention wherein a steel substrate (3) is disposed between two oxidation resistant clad layers (2).
  • Figures 2-5 correspond to Glow discharge optical emission spectrometry (GDOES) depth profiles taken after the step subjecting the steel strips to a heat treatment of 900 ° C.
  • GDOES Glow discharge optical emission spectrometry
  • Figure 2 is a comparative example (1) that shows the depth profile for an uncoated steel strip substrate (A). The presence of an oxide layer is clearly visible up to a depth of approximately 24 pm after the heat treatment.
  • Figure 3 is a comparative example (2) that shows the depth profile for a hot-dip galvanised steel strip substrate (A). The presence of an oxide layer is clearly visible up to a depth of approximately 8 m after the heat treatment.
  • Figure 4 is a depth profile for a hot-formable steel strip according to the invention, which steel strip consists of a steel substrate (A) disposed between two stainless steel strips (B). It is clear from Figure 4 that the thickness of the oxide layer is significantly reduced relative to the oxide layers of comparative examples (1) and (2).
  • Figure 5 is a depth profile for a hot-formable steel strip according to the invention, which steel strip consists of a steel substrate (A) between two stainless steel strips (C).
  • a steel substrate (A) (3) is provided in the form of a cast block, hot-rolled at a temperature of 1250'C and break down rolled from 100 mm to a flat 32 mm plate.
  • Two strips of stainless steel (B) (2) having a strip thickness of 4 mm are cut to a width of approximately 1 mm less than that of the steel plate.
  • the contact surfaces of each substrate are brushed and milled before each side of the steel plate is provided with a layer of stainless steel, resulting in a 3-layer stack package.
  • the different layers of the stack package are welded together by rectangular arc welding.
  • the welded 3-layer stack package is then heated to a temperature of 1250 ° C for 30 minutes before being hot-rolled in six passes 27-17.8-12-8-6-4mm, the final pass being performed at a temperature of 880 ° C.
  • the welded and hot-rolled stack package is then cooled at a rate of 30'C/s from 840 ° C to 600 ° C using a table simulation and cooled to room temperature using a warm coil simulation.
  • the steel strip thus formed is then pickled and cold-rolled to 1.5 mm in steps of 0.5 mm per pass to form a hot-formable steel strip (1) suitable for hot-forming.
  • the hot-formable steel strip (1) is then cut into strip blanks and transferred to a heating furnace, each strip blank is heated to 900 ° C.
  • the hot steel strip is subsequently transferred to a hot-forming press where it is hot-formed to obtain a hot-formed part.
  • Hardened hot-formed parts obtained by hot-forming steel strips (1) according to the invention have tensile and yield strengths in excess of 1500 and 1000 MPa respectively.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

L'invention concerne un feuillard, une tôle ou une ébauche en acier apte au formage à chaud et comprenant un substrat en acier et une couche de revêtement métallique résistant à l'oxydation formée sur l'une des deux faces du substrat en acier.
PCT/EP2012/001822 2011-04-27 2012-04-27 Composite de feuillard en acier et son procédé de fabrication Ceased WO2012146384A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280027049.5A CN103582706A (zh) 2011-04-27 2012-04-27 钢带材复合物及其制备方法
EP12720795.9A EP2702178A1 (fr) 2011-04-27 2012-04-27 Composite de feuillard en acier et son procédé de fabrication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11003444 2011-04-27
EP11003444.4 2011-04-27

Publications (1)

Publication Number Publication Date
WO2012146384A1 true WO2012146384A1 (fr) 2012-11-01

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PCT/EP2012/001822 Ceased WO2012146384A1 (fr) 2011-04-27 2012-04-27 Composite de feuillard en acier et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP2702178A1 (fr)
CN (1) CN103582706A (fr)
WO (1) WO2012146384A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016146581A1 (fr) * 2015-03-16 2016-09-22 Tata Steel Ijmuiden B.V. Acier pour formage à chaud
WO2017016536A1 (fr) * 2015-07-28 2017-02-02 Benteler Automobiltechnik Gmbh Pièce de véhicule à moteur en acier composite tricouche
DE102015116619A1 (de) 2015-09-30 2017-03-30 Thyssenkrupp Ag Herstellung von Halbzeugen und Strukturbauteilen mit bereichsweise unterschiedlichen Materialdicken
EP3162558A1 (fr) * 2015-10-30 2017-05-03 Outokumpu Oyj Composant constitué d'un matériau composite métallique et procédé pour la fabrication du composant par formage à chaud
EP3088549A4 (fr) * 2013-12-25 2017-06-14 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Tôle d'acier pour formage à chaud et procédé de production d'élément en acier formé à la presse à chaud
EP3243913A1 (fr) * 2016-05-12 2017-11-15 Benteler Automobiltechnik GmbH Procede de fabrication de pieces de vehicule automobile protegees contre la corrosion
DE102016120567A1 (de) * 2016-10-27 2018-05-03 Benteler Automobiltechnik Gmbh Mehrlagiges Kraftfahrzeugbauteil
WO2018099347A1 (fr) * 2016-11-30 2018-06-07 宝山钢铁股份有限公司 Plaque d'acier composite laminée en acier inoxydable martensitique et son procédé de fabrication
WO2018137781A1 (fr) 2017-01-30 2018-08-02 Thyssenkrupp Ag Composite à base d'acier présentant une répartition inhomogène des propriétés
WO2019068341A1 (fr) 2017-10-06 2019-04-11 Thyssenkrupp Steel Europe Ag Matériau composite de formage à chaud, sa fabrication, composant et son utilisation
JP6573060B1 (ja) * 2017-12-28 2019-09-11 Ｊｆｅスチール株式会社 クラッド鋼板
CN111850410A (zh) * 2020-07-30 2020-10-30 吉林建龙钢铁有限责任公司 一种打包带用冷硬卷板及其制备方法
EP3060687B1 (fr) 2013-10-21 2021-04-21 Magna International Inc. Procédé d'ébavurage d'une pièce formée à chaud
JP2021523301A (ja) * 2018-05-16 2021-09-02 宝山鋼鉄股▲ふん▼有限公司Ｂａｏｓｈａｎ Ｉｒｏｎ ＆ Ｓｔｅｅｌ Ｃｏ．，Ｌｔｄ． 高強度両面ステンレス鋼クラッド板およびその製造方法
US11519047B2 (en) 2016-05-12 2022-12-06 Benteler Automobiltechnik Gmbh Motor vehicle component and a method of manufacturing thereof
JP2023510288A (ja) * 2020-01-13 2023-03-13 宝山鋼鉄股▲分▼有限公司 高耐食性ストリップ鋼およびその製造方法
KR20240107919A (ko) * 2022-12-30 2024-07-09 현대제철 주식회사 핫 스탬핑 부품 및 이의 제조 방법

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US11519047B2 (en) 2016-05-12 2022-12-06 Benteler Automobiltechnik Gmbh Motor vehicle component and a method of manufacturing thereof
DE102016120567A1 (de) * 2016-10-27 2018-05-03 Benteler Automobiltechnik Gmbh Mehrlagiges Kraftfahrzeugbauteil
DE102016120567B4 (de) 2016-10-27 2018-06-07 Benteler Automobiltechnik Gmbh Mehrlagiges Kraftfahrzeugbauteil
WO2018099347A1 (fr) * 2016-11-30 2018-06-07 宝山钢铁股份有限公司 Plaque d'acier composite laminée en acier inoxydable martensitique et son procédé de fabrication
WO2018137781A1 (fr) 2017-01-30 2018-08-02 Thyssenkrupp Ag Composite à base d'acier présentant une répartition inhomogène des propriétés
WO2019068341A1 (fr) 2017-10-06 2019-04-11 Thyssenkrupp Steel Europe Ag Matériau composite de formage à chaud, sa fabrication, composant et son utilisation
JP6573060B1 (ja) * 2017-12-28 2019-09-11 Ｊｆｅスチール株式会社 クラッド鋼板
JP2021523301A (ja) * 2018-05-16 2021-09-02 宝山鋼鉄股▲ふん▼有限公司Ｂａｏｓｈａｎ Ｉｒｏｎ ＆ Ｓｔｅｅｌ Ｃｏ．，Ｌｔｄ． 高強度両面ステンレス鋼クラッド板およびその製造方法
JP7274505B2 (ja) 2018-05-16 2023-05-16 宝山鋼鉄股▲ふん▼有限公司 高強度両面ステンレス鋼クラッド板およびその製造方法
US11833777B2 (en) 2018-05-16 2023-12-05 Baoshan Iron & Steel Co., Ltd. High-strength double-sided stainless steel clad sheet and manufacturing method therefor
JP2023510288A (ja) * 2020-01-13 2023-03-13 宝山鋼鉄股▲分▼有限公司 高耐食性ストリップ鋼およびその製造方法
JP7720308B2 (ja) 2020-01-13 2025-08-07 宝山鋼鉄股▲分▼有限公司 高耐食性ストリップ鋼およびその製造方法
CN111850410A (zh) * 2020-07-30 2020-10-30 吉林建龙钢铁有限责任公司 一种打包带用冷硬卷板及其制备方法
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