EP4640904A4 - Fil d'acier non trempé et trempé présentant d'excellentes propriétés de forgeage à froid et son procédé de fabrication - Google Patents

Fil d'acier non trempé et trempé présentant d'excellentes propriétés de forgeage à froid et son procédé de fabrication

Info

Publication number
EP4640904A4
EP4640904A4 EP23907284.6A EP23907284A EP4640904A4 EP 4640904 A4 EP4640904 A4 EP 4640904A4 EP 23907284 A EP23907284 A EP 23907284A EP 4640904 A4 EP4640904 A4 EP 4640904A4
Authority
EP
European Patent Office
Prior art keywords
quenched
manufacturing
steel wire
method therefor
cold forging
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
EP23907284.6A
Other languages
German (de)
English (en)
Other versions
EP4640904A1 (fr
Inventor
Jae Han Lim
Hyeon Bae Noh
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.)
Hyundai Steel Co
Original Assignee
Hyundai Steel Co
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 Hyundai Steel Co filed Critical Hyundai Steel Co
Publication of EP4640904A1 publication Critical patent/EP4640904A1/fr
Publication of EP4640904A4 publication Critical patent/EP4640904A4/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
    • C22C38/18—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0035—Forging or pressing devices as units
    • 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
    • C21D1/84—Controlled slow cooling
    • 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • 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
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • 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
    • C21D8/06—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
EP23907284.6A 2022-12-23 2023-09-01 Fil d'acier non trempé et trempé présentant d'excellentes propriétés de forgeage à froid et son procédé de fabrication Pending EP4640904A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220183546A KR102871471B1 (ko) 2022-12-23 2022-12-23 냉간단조성이 우수한 비조질강 선재 및 그 제조 방법
PCT/KR2023/013084 WO2024135996A1 (fr) 2022-12-23 2023-09-01 Fil d'acier non trempé et trempé présentant d'excellentes propriétés de forgeage à froid et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4640904A1 EP4640904A1 (fr) 2025-10-29
EP4640904A4 true EP4640904A4 (fr) 2026-04-22

Family

ID=91589099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23907284.6A Pending EP4640904A4 (fr) 2022-12-23 2023-09-01 Fil d'acier non trempé et trempé présentant d'excellentes propriétés de forgeage à froid et son procédé de fabrication

Country Status (6)

Country Link
US (1) US20250305082A1 (fr)
EP (1) EP4640904A4 (fr)
JP (1) JP2026500921A (fr)
KR (1) KR102871471B1 (fr)
CN (1) CN120344703A (fr)
WO (1) WO2024135996A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121087385B (zh) * 2025-11-11 2026-04-21 江苏新合益机械有限公司 一种活塞杆用免调制钢材

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102178711B1 (ko) * 2019-07-03 2020-11-13 주식회사 포스코 강도 및 충격인성이 우수한 비조질 선재 및 그 제조방법
CN113966404A (zh) * 2020-02-24 2022-01-21 株式会社Posco 具有优异的可拉拔性和冲击韧性的非热处理线材及其制造方法
KR20220097722A (ko) * 2020-12-31 2022-07-08 현대자동차주식회사 냉간단조용 비조질강 및 그 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101262462B1 (ko) 2010-11-19 2013-05-08 주식회사 포스코 냉간 신선형 고인성 비조질 선재 및 그 제조방법
KR101271997B1 (ko) * 2010-11-29 2013-06-05 주식회사 포스코 선재코일 냉각 장치 및 방법
JP5736929B2 (ja) * 2011-04-19 2015-06-17 Ｊｆｅスチール株式会社 加工性および低温靭性に優れた中空部材用超高強度電縫鋼管およびその製造方法
KR101435320B1 (ko) * 2013-02-27 2014-08-29 현대제철 주식회사 강재 제조 방법
JP7001202B1 (ja) 2020-03-31 2022-02-03 Ｊｆｅスチール株式会社 鋼板及び部材

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102178711B1 (ko) * 2019-07-03 2020-11-13 주식회사 포스코 강도 및 충격인성이 우수한 비조질 선재 및 그 제조방법
CN113966404A (zh) * 2020-02-24 2022-01-21 株式会社Posco 具有优异的可拉拔性和冲击韧性的非热处理线材及其制造方法
KR20220097722A (ko) * 2020-12-31 2022-07-08 현대자동차주식회사 냉간단조용 비조질강 및 그 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024135996A1 *

Also Published As

Publication number Publication date
US20250305082A1 (en) 2025-10-02
KR102871471B1 (ko) 2025-10-15
JP2026500921A (ja) 2026-01-09
KR20240101158A (ko) 2024-07-02
EP4640904A1 (fr) 2025-10-29
WO2024135996A1 (fr) 2024-06-27
CN120344703A (zh) 2025-07-18

Similar Documents

Publication Publication Date Title
WO2017106654A3 (fr) Alliages d'aluminium 6xxx haute résistance et leurs procédés de fabrication
ZA202107698B (en) A cold rolled martensitic steel and a method of martensitic steel thereof
EP1521860A4 (fr) Fil d'acier trempe et revenu presentant des caracteristiques de forgeage a froid superieures
CN107084181B (zh) 由低合金碳钢制成的螺钉和制造该螺钉的方法
WO2005080619A8 (fr) Procede en ligne de fabrication de feuille d'alliage en aluminium traitee thermiquement et recuite
ZA202203452B (en) Cold rolled and heat-treated steel sheet and method of manufacturing the same
EP4640904A4 (fr) Fil d'acier non trempé et trempé présentant d'excellentes propriétés de forgeage à froid et son procédé de fabrication
EP2418296A4 (fr) Acier pour durcissement superficiel qui présente une excellente aptitude au façonnage à froid et une excellente aptitude à l'usinage et qui présente d'excellentes caractéristiques à la fatigue après cémentation au carbone et trempe, et son procédé de fabrication
PT3749790T (pt) Aço de alta resistência laminado a quente ou laminado a frio e recozido, e método para a sua produção
ZA202210907B (en) Cold rolled and annealed steel sheet and method of manufacturing the same
ZA202101976B (en) Cold rolled and heat-treated steel sheet and method of manufacturing the same
EP4074858A4 (fr) Acier pour poutre-h laminé à chaud basé sur le laminage et le formage de billettes de forme spéciale, et procédé de fabrication associé
WO2010074435A3 (fr) Dispositif de recuit pour tôles d'acier, dispositif de production de tôle d'acier plaqué comprenant le premier dispositif, et procédé de production de tôle d'acier plaqué au moyen de ce même premier dispositif
EP3438315A4 (fr) Tôle d'acier laminée à froid à résistance élevée ayant d'excellentes limite d'élasticité et ductilité, plaque d'acier revêtue et son procédé de fabrication
ZA202210973B (en) Cold rolled and annealed steel sheet and method of manufacturing the same
WO2008068352A3 (fr) Bande d'acier ayant une épaisseur variable dans le sens de la longueur
ZA202207671B (en) High strength cold rolled and galvannealed steel sheet and manufacturing process thereof
EP4265803A4 (fr) Feuille d'acier laminée à froid ultra haute résistance présentant une excellente soudabilité par points et une excellente formabilité, feuille d'acier plaquée ultra haute résistance et son procédé de fabrication
KR102403767B9 (ko) 초고강도 냉연강판 및 그 제조방법
EP4206350A4 (fr) Acier à forte expansion de trou martensitique à faible teneur en carbone et à haute résistance et procédé de fabrication
ATE551131T1 (de) Verfahren zur kontinuierlichen herstellung von kaltgewalztem stahl
EP4386103A4 (fr) Tôle d'acier haute résistance laminée à chaud présentant une excellente aptitude au formage, et procédé de fabrication associé
WO2006097593A8 (fr) Procede de fabrication d'une piece d'acier revetu presentant une tres haute resistance apres traitement thermique
EP4339308A4 (fr) Tôle d'acier galvanisé à et élément et procédé de fabrication associé
CA3264072A1 (fr) Acier de forgeage à froid à économie d'énergie et son procédé de fabrication

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: 20250617

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: C22C0038580000

Ipc: C21D0001840000

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20260323

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/84 20060101AFI20260317BHEP

Ipc: C21D 6/00 20060101ALI20260317BHEP

Ipc: C21D 8/06 20060101ALI20260317BHEP

Ipc: C21D 9/52 20060101ALI20260317BHEP

Ipc: B21B 1/16 20060101ALI20260317BHEP

Ipc: B21B 15/00 20060101ALI20260317BHEP

Ipc: C22C 38/00 20060101ALI20260317BHEP

Ipc: C22C 38/02 20060101ALI20260317BHEP

Ipc: C22C 38/04 20060101ALI20260317BHEP

Ipc: C22C 38/06 20060101ALI20260317BHEP

Ipc: C22C 38/42 20060101ALI20260317BHEP

Ipc: C22C 38/44 20060101ALI20260317BHEP

Ipc: C22C 38/46 20060101ALI20260317BHEP

Ipc: C22C 38/48 20060101ALI20260317BHEP

Ipc: C22C 38/50 20060101ALI20260317BHEP

Ipc: C22C 38/54 20060101ALI20260317BHEP

Ipc: C22C 38/58 20060101ALI20260317BHEP