EP4621092A4 - Tôle d'acier laminée à chaud et son procédé de fabrication - Google Patents

Tôle d'acier laminée à chaud et son procédé de fabrication

Info

Publication number
EP4621092A4
EP4621092A4 EP23892002.9A EP23892002A EP4621092A4 EP 4621092 A4 EP4621092 A4 EP 4621092A4 EP 23892002 A EP23892002 A EP 23892002A EP 4621092 A4 EP4621092 A4 EP 4621092A4
Authority
EP
European Patent Office
Prior art keywords
hot
manufacturing
steel sheet
rolled steel
rolled
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.)
Pending
Application number
EP23892002.9A
Other languages
German (de)
English (en)
Other versions
EP4621092A1 (fr
Inventor
Il-Cheol Yi
Sung-Il Kim
Je-Woong Lee
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4621092A1 publication Critical patent/EP4621092A1/fr
Publication of EP4621092A4 publication Critical patent/EP4621092A4/fr
Pending legal-status Critical Current

Links

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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D1/667—Quenching devices for spray 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • 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
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • 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
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

  • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
EP23892002.9A 2022-11-18 2023-11-15 Tôle d'acier laminée à chaud et son procédé de fabrication Pending EP4621092A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220155038A KR20240075040A (ko) 2022-11-18 2022-11-18 열연강판 및 그 제조방법
PCT/KR2023/018349 WO2024106936A1 (fr) 2022-11-18 2023-11-15 Tôle d'acier laminée à chaud et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4621092A1 EP4621092A1 (fr) 2025-09-24
EP4621092A4 true EP4621092A4 (fr) 2026-02-25

Family

ID=91084766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23892002.9A Pending EP4621092A4 (fr) 2022-11-18 2023-11-15 Tôle d'acier laminée à chaud et son procédé de fabrication

Country Status (6)

Country Link
US (1) US20260168063A1 (fr)
EP (1) EP4621092A4 (fr)
JP (1) JP2026508718A (fr)
KR (1) KR20240075040A (fr)
CN (1) CN120187885A (fr)
WO (1) WO2024106936A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025169995A1 (fr) * 2024-02-07 2025-08-14 日本製鉄株式会社 Tôle d'acier et composant
KR20260096603A (ko) * 2024-12-17 2026-06-24 주식회사 포스코 강판 및 그 제조방법
KR20260097004A (ko) * 2024-12-17 2026-06-25 주식회사 포스코 강판 및 그 제조방법
KR20260097018A (ko) * 2024-12-17 2026-06-25 주식회사 포스코 강판 및 그 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2759615A1 (fr) * 2011-11-01 2014-07-30 JFE Steel Corporation Feuille d'acier laminée à chaud à haute résistance ayant d'excellentes caractéristiques de flexion et une excellente ténacité à basse température et son procédé de fabrication
EP2980256A1 (fr) * 2013-03-28 2016-02-03 Baoshan Iron & Steel Co., Ltd. Tôle d'acier haute performance, résistant à l'usure et faiblement allié et procédé de fabrication de cette dernière
EP3395994A1 (fr) * 2015-12-21 2018-10-31 Posco Pièce de véhicule présentant une haute résistance et une excellente durabilité et procédé de fabrication s'y rapportant
EP3950994A1 (fr) * 2019-03-28 2022-02-09 Nippon Steel Corporation Tôle d'acier à haute résistance
WO2022139190A1 (fr) * 2020-12-21 2022-06-30 주식회사 포스코 Tôle d'acier à ultra-haute résistance à rapport élevé de limite d'élasticité/résistance à la traction, ayant une excellente stabilité thermique, et son procédé de fabrication

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5845674B2 (ja) * 2010-07-16 2016-01-20 Ｊｆｅスチール株式会社 曲げ加工性および低温靱性に優れる高張力鋼板およびその製造方法
US10662493B2 (en) * 2014-01-28 2020-05-26 Jfe Steel Corporation Abrasion-resistant steel plate and method for manufacturing the same
KR20150089579A (ko) * 2014-01-28 2015-08-05 현대제철 주식회사 열연도금강판 및 그 제조 방법
KR102748708B1 (ko) * 2019-12-19 2025-01-06 닛폰세이테츠 가부시키가이샤 강판 및 그 제조 방법
JP7402724B2 (ja) * 2020-03-26 2023-12-21 株式会社小松製作所 ステアリング装置、および作業機械

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2759615A1 (fr) * 2011-11-01 2014-07-30 JFE Steel Corporation Feuille d'acier laminée à chaud à haute résistance ayant d'excellentes caractéristiques de flexion et une excellente ténacité à basse température et son procédé de fabrication
EP2980256A1 (fr) * 2013-03-28 2016-02-03 Baoshan Iron & Steel Co., Ltd. Tôle d'acier haute performance, résistant à l'usure et faiblement allié et procédé de fabrication de cette dernière
EP3395994A1 (fr) * 2015-12-21 2018-10-31 Posco Pièce de véhicule présentant une haute résistance et une excellente durabilité et procédé de fabrication s'y rapportant
EP3950994A1 (fr) * 2019-03-28 2022-02-09 Nippon Steel Corporation Tôle d'acier à haute résistance
WO2022139190A1 (fr) * 2020-12-21 2022-06-30 주식회사 포스코 Tôle d'acier à ultra-haute résistance à rapport élevé de limite d'élasticité/résistance à la traction, ayant une excellente stabilité thermique, et son procédé de fabrication
EP4265782A1 (fr) * 2020-12-21 2023-10-25 POSCO Co., Ltd Tôle d'acier à ultra-haute résistance à rapport élevé de limite d'élasticité/résistance à la traction, ayant une excellente stabilité thermique, et son procédé de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024106936A1 *

Also Published As

Publication number Publication date
KR20240075040A (ko) 2024-05-29
CN120187885A (zh) 2025-06-20
WO2024106936A1 (fr) 2024-05-23
US20260168063A1 (en) 2026-06-18
EP4621092A1 (fr) 2025-09-24
JP2026508718A (ja) 2026-03-12

Similar Documents

Publication Publication Date Title
EP4610377A4 (fr) Plaque d'acier de qualité 460 mpa résistante à la corrosion et son procédé de production
EP4632098A4 (fr) Tôle d'acier, élément, et procédés de fabrication associés
EP4560044A4 (fr) Tôle d'acier laminée à chaud et procédé de fabrication pour celle-ci
EP4375389A4 (fr) Tôle d'acier laminée à froid et son procédé de fabrication
EP4632099A4 (fr) Tôle d'acier, élément, et procédés de fabrication associés
EP4464810A4 (fr) Composant d'acier et son procédé de production
EP4636110A4 (fr) Tôle d'acier, et procédé de fabrication de celle-ci
EP4640883A4 (fr) Tôle d'acier laminée à froid et son procédé de fabrication
EP4306664A4 (fr) Tôle d'acier laminée à chaud et son procédé de fabrication
EP4549608A4 (fr) Tôle d?acier galvanisée ultrarésistant de qualité 120 kg et son procédé de fabrication
EP4575012A4 (fr) Tôle d'acier, élément, et procédés de fabrication associés
EP4640852A4 (fr) Tôle d'acier électrique à grains orientés et son procédé de fabrication
EP4549599A4 (fr) Tôle d'acier haute résistance galvanisée à chaud au trempé et son procédé de production
EP4450665A4 (fr) Tôle d'acier et son procédé de fabrication
EP4509628A4 (fr) Acier inoxydable ferritique et son procédé de production
EP4417718A4 (fr) Tôle d'acier laminée à chaud
EP4261308A4 (fr) Tôle d'acier laminée à chaud pour tube de train hypersonique et son procédé de fabrication
EP4403661A4 (fr) Tôle d'acier épaisse et son procédé de fabrication
EP4640886A4 (fr) Feuille d'acier laminée à chaud et son procédé de fabrication
EP4575014A4 (fr) Feuille d'acier à haute résistance, élément et procédés de fabrication associés
EP4624615A4 (fr) Tôle d'acier électromagnétique à grains orientés, et procédé de fabrication de celle-ci
EP4261307A4 (fr) Tôle d'acier laminée à chaud pour hyper-tube et son procédé de fabrication
EP4585706A4 (fr) Feuille d'acier électromagnétique non orientée et son procédé de production
EP4650477A4 (fr) Feuille d'acier et feuille d'acier plaquée
EP4650479A4 (fr) Tôle d'acier et tôle d'acier plaquée

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250430

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C22C0038380000

Ipc: C21D0001020000

A4 Supplementary search report drawn up and despatched

Effective date: 20260128

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/02 20060101AFI20260122BHEP

Ipc: C21D 1/18 20060101ALI20260122BHEP

Ipc: C21D 1/667 20060101ALI20260122BHEP

Ipc: C21D 1/60 20060101ALI20260122BHEP

Ipc: C21D 9/46 20060101ALI20260122BHEP

Ipc: C22C 38/02 20060101ALI20260122BHEP

Ipc: C22C 38/04 20060101ALI20260122BHEP

Ipc: C22C 38/38 20060101ALI20260122BHEP

Ipc: C22C 38/22 20060101ALI20260122BHEP

Ipc: C22C 38/26 20060101ALI20260122BHEP

Ipc: C22C 38/28 20060101ALI20260122BHEP

Ipc: C22C 38/24 20060101ALI20260122BHEP

Ipc: C22C 38/06 20060101ALI20260122BHEP

Ipc: C22C 38/32 20060101ALI20260122BHEP

Ipc: C22C 38/00 20060101ALI20260122BHEP

Ipc: C23G 1/08 20060101ALI20260122BHEP