EP4063531A4 - ROLLED WIRE FOR HIGH-STRENGTH SPRING, STEEL WIRE AND METHOD FOR PRODUCING THE SAME - Google Patents

ROLLED WIRE FOR HIGH-STRENGTH SPRING, STEEL WIRE AND METHOD FOR PRODUCING THE SAME Download PDF

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Publication number
EP4063531A4
EP4063531A4 EP20903249.9A EP20903249A EP4063531A4 EP 4063531 A4 EP4063531 A4 EP 4063531A4 EP 20903249 A EP20903249 A EP 20903249A EP 4063531 A4 EP4063531 A4 EP 4063531A4
Authority
EP
European Patent Office
Prior art keywords
ultra
manufacturing
high strength
strength spring
steel wire
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
EP20903249.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4063531A1 (en
Inventor
Jun Mo Lee
Seok-Hwan Choi
Han Hwi Kim
Myung Soo Choi
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 EP4063531A1 publication Critical patent/EP4063531A1/en
Publication of EP4063531A4 publication Critical patent/EP4063531A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • 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
    • 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
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/22—Martempering
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D1/34—Methods of heating
    • C21D1/42—Induction heating
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • 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
    • C22C38/02—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
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
EP20903249.9A 2019-12-20 2020-06-22 ROLLED WIRE FOR HIGH-STRENGTH SPRING, STEEL WIRE AND METHOD FOR PRODUCING THE SAME Pending EP4063531A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190172003A KR102326263B1 (ko) 2019-12-20 2019-12-20 초고강도 스프링용 선재, 강선 및 그 제조방법
PCT/KR2020/008091 WO2021125471A1 (ko) 2019-12-20 2020-06-22 초고강도 스프링용 선재, 강선 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4063531A1 EP4063531A1 (en) 2022-09-28
EP4063531A4 true EP4063531A4 (en) 2023-12-06

Family

ID=76477565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20903249.9A Pending EP4063531A4 (en) 2019-12-20 2020-06-22 ROLLED WIRE FOR HIGH-STRENGTH SPRING, STEEL WIRE AND METHOD FOR PRODUCING THE SAME

Country Status (5)

Country Link
EP (1) EP4063531A4 (zh)
JP (2) JP2023508314A (zh)
KR (1) KR102326263B1 (zh)
CN (1) CN114929923B (zh)
WO (1) WO2021125471A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113943895B (zh) * 2021-10-15 2022-04-22 本钢板材股份有限公司 一种高质量弹簧钢丝用钢及其生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6264759B1 (en) * 1998-10-16 2001-07-24 Pohang Iron & Steel Co., Ltd. Wire rods with superior drawability and manufacturing method therefor
KR20030053771A (ko) * 2001-12-24 2003-07-02 주식회사 포스코 피로강도가 우수하고 페라이트 탈탄층이 없는 스프링강용선재 제조방법
KR20040035136A (ko) * 2002-10-18 2004-04-29 주식회사 포스코 스프링용강 선재의 제조방법
WO2015052035A1 (en) * 2013-10-11 2015-04-16 Nv Bekaert Sa High tensile strength steel wire
CN107299291A (zh) * 2017-06-30 2017-10-27 武汉钢铁有限公司 一种弹簧钢及其表面脱碳控制工艺
US20170362679A1 (en) * 2015-01-30 2017-12-21 Nv Bekaert Sa High tensile steel wire
CN108179355A (zh) * 2018-01-31 2018-06-19 中钢集团郑州金属制品研究院有限公司 一种高强度高韧性弹簧钢丝及其制备工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100311795B1 (ko) 1997-12-19 2001-11-22 이구택 스프링용 강 및 그 제조방법
CN102268604A (zh) * 2007-07-20 2011-12-07 株式会社神户制钢所 弹簧用钢线材及其制造方法
US9097306B2 (en) * 2010-08-30 2015-08-04 Kobe Steel, Ltd. Steel wire rod for high-strength spring excellent in wire drawability, manufacturing method therefor, and high-strength spring
BR112014003415B1 (pt) * 2011-08-18 2019-05-28 Nippon Steel & Sumitomo Metal Corporation Aço para mola e mola
KR20150089846A (ko) * 2014-01-28 2015-08-05 현대제철 주식회사 스프링 및 그 제조 방법
KR101940873B1 (ko) * 2016-12-22 2019-01-21 주식회사 포스코 인성이 우수한 선재, 강선 및 그 제조 방법
EP3640357A4 (en) * 2017-06-15 2020-09-30 Nippon Steel Corporation ROLLED WIRE FOR SPRING STEEL
JP6816738B2 (ja) * 2018-03-30 2021-01-20 Ｊｆｅスチール株式会社 鋼線材の製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6264759B1 (en) * 1998-10-16 2001-07-24 Pohang Iron & Steel Co., Ltd. Wire rods with superior drawability and manufacturing method therefor
KR20030053771A (ko) * 2001-12-24 2003-07-02 주식회사 포스코 피로강도가 우수하고 페라이트 탈탄층이 없는 스프링강용선재 제조방법
KR20040035136A (ko) * 2002-10-18 2004-04-29 주식회사 포스코 스프링용강 선재의 제조방법
WO2015052035A1 (en) * 2013-10-11 2015-04-16 Nv Bekaert Sa High tensile strength steel wire
US20170362679A1 (en) * 2015-01-30 2017-12-21 Nv Bekaert Sa High tensile steel wire
CN107299291A (zh) * 2017-06-30 2017-10-27 武汉钢铁有限公司 一种弹簧钢及其表面脱碳控制工艺
CN108179355A (zh) * 2018-01-31 2018-06-19 中钢集团郑州金属制品研究院有限公司 一种高强度高韧性弹簧钢丝及其制备工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021125471A1 *

Also Published As

Publication number Publication date
JP2024060017A (ja) 2024-05-01
KR20210079830A (ko) 2021-06-30
CN114929923B (zh) 2023-10-20
CN114929923A (zh) 2022-08-19
EP4063531A1 (en) 2022-09-28
WO2021125471A1 (ko) 2021-06-24
JP2023508314A (ja) 2023-03-02
KR102326263B1 (ko) 2021-11-15

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