EP4509631A4 - Walzdraht aus nicht vergütetem und gehärtetem stahl mit verbesserter bearbeitbarkeit und zähigkeit sowie verfahren zur herstellung davon - Google Patents

Walzdraht aus nicht vergütetem und gehärtetem stahl mit verbesserter bearbeitbarkeit und zähigkeit sowie verfahren zur herstellung davon

Info

Publication number
EP4509631A4
EP4509631A4 EP23816361.2A EP23816361A EP4509631A4 EP 4509631 A4 EP4509631 A4 EP 4509631A4 EP 23816361 A EP23816361 A EP 23816361A EP 4509631 A4 EP4509631 A4 EP 4509631A4
Authority
EP
European Patent Office
Prior art keywords
untempered
toughness
producing
hardened steel
wire made
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
EP23816361.2A
Other languages
English (en)
French (fr)
Other versions
EP4509631A1 (de
Inventor
Namsuk Lim
Dongjun Mun
Hanhwi Kim
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 EP4509631A1 publication Critical patent/EP4509631A1/de
Publication of EP4509631A4 publication Critical patent/EP4509631A4/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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
    • C21D2211/003—Cementite
    • 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
    • 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
    • C21D2211/009—Pearlite

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)
EP23816361.2A 2022-05-31 2023-05-31 Walzdraht aus nicht vergütetem und gehärtetem stahl mit verbesserter bearbeitbarkeit und zähigkeit sowie verfahren zur herstellung davon Pending EP4509631A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20220066879 2022-05-31
PCT/KR2023/007440 WO2023234700A1 (ko) 2022-05-31 2023-05-31 절삭성 및 충격인성이 우수한 비조질 선재 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4509631A1 EP4509631A1 (de) 2025-02-19
EP4509631A4 true EP4509631A4 (de) 2026-04-01

Family

ID=89025279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23816361.2A Pending EP4509631A4 (de) 2022-05-31 2023-05-31 Walzdraht aus nicht vergütetem und gehärtetem stahl mit verbesserter bearbeitbarkeit und zähigkeit sowie verfahren zur herstellung davon

Country Status (5)

Country Link
EP (1) EP4509631A4 (de)
JP (1) JP2025519192A (de)
KR (1) KR20250011608A (de)
CN (1) CN119213158A (de)
WO (1) WO2023234700A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230165627A (ko) * 2022-05-27 2023-12-05 주식회사 포스코 절삭성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
CN118326267A (zh) * 2024-03-28 2024-07-12 鞍钢股份有限公司 一种低碳非调质冷镦钢盘条及其制备方法
CN118421889B (zh) * 2024-05-24 2026-02-13 湖南华菱湘潭钢铁有限公司 一种8.8级非调质冷镦钢盘条的生产方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09310152A (ja) * 1996-05-21 1997-12-02 Kobe Steel Ltd 熱間鍛造用非調質鋼
JP2011241466A (ja) * 2010-05-21 2011-12-01 Sumitomo Metal Ind Ltd 高周波焼入れ用圧延鋼材およびその製造方法
US20160083823A1 (en) * 2013-04-10 2016-03-24 Nippon Steel & Sumitomo Metal Corporation Rolled round steel material for steering rack bar and steering rack bar
US20160186300A1 (en) * 2013-08-26 2016-06-30 Nippon Steel & Sumitomo Metal Corporation Rolled round steel material for steering rack bar, and steering rack bar
WO2017098964A1 (ja) * 2015-12-07 2017-06-15 株式会社神戸製鋼所 機械構造部品用鋼線
KR20210077530A (ko) * 2019-12-17 2021-06-25 주식회사 포스코 절삭성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
EP3964601A1 (de) * 2020-02-24 2022-03-09 Posco Nicht wärmebehandelter walzdraht mit ausgezeichneter drahtziehfähigkeit und schlagzähigkeit und verfahren zu seiner herstellung
KR20220074475A (ko) * 2020-11-27 2022-06-03 주식회사 포스코 절삭성 및 충격인성이 향상된 중탄소 비조질 선재 및 그 제조방법

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JPH10235447A (ja) * 1997-02-25 1998-09-08 Daido Steel Co Ltd 高靱性・高耐力フェライト＋パーライト型非調質鋼鍛造品の製造方法
JP3780999B2 (ja) * 2002-10-17 2006-05-31 住友金属工業株式会社 非調質鋼熱間鍛造部材の製造方法
ATE442464T1 (de) * 2005-03-09 2009-09-15 Ovako Bar Oy Ab Hochfester luftgekühlter stahl und daraus resultiertes warmverformte produkt.
CN101338398B (zh) * 2008-08-14 2012-05-09 武汉钢铁(集团)公司 汽车连杆用高强度非调质易切削钢及其工艺方法
JP5706766B2 (ja) * 2011-06-14 2015-04-22 株式会社神戸製鋼所 被削性に優れた高周波焼入れ用鋼、及びその製造方法
CN104032224B (zh) * 2013-09-26 2015-12-02 北大方正集团有限公司 一种非调质钢及其生产工艺
JP6838873B2 (ja) * 2016-07-04 2021-03-03 株式会社神戸製鋼所 冷間加工用機械構造用鋼およびその製造方法
KR102143075B1 (ko) * 2018-11-26 2020-08-31 주식회사 포스코 신선가공성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
KR102175586B1 (ko) * 2019-06-04 2020-11-06 주식회사 포스코 신선가공성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
KR102178711B1 (ko) * 2019-07-03 2020-11-13 주식회사 포스코 강도 및 충격인성이 우수한 비조질 선재 및 그 제조방법
KR102318035B1 (ko) * 2019-12-17 2021-10-27 주식회사 포스코 신선가공성 및 충격인성이 우수한 비조질 선재 및 그 제조방법

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09310152A (ja) * 1996-05-21 1997-12-02 Kobe Steel Ltd 熱間鍛造用非調質鋼
JP2011241466A (ja) * 2010-05-21 2011-12-01 Sumitomo Metal Ind Ltd 高周波焼入れ用圧延鋼材およびその製造方法
US20160083823A1 (en) * 2013-04-10 2016-03-24 Nippon Steel & Sumitomo Metal Corporation Rolled round steel material for steering rack bar and steering rack bar
US20160186300A1 (en) * 2013-08-26 2016-06-30 Nippon Steel & Sumitomo Metal Corporation Rolled round steel material for steering rack bar, and steering rack bar
WO2017098964A1 (ja) * 2015-12-07 2017-06-15 株式会社神戸製鋼所 機械構造部品用鋼線
KR20210077530A (ko) * 2019-12-17 2021-06-25 주식회사 포스코 절삭성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
EP3964601A1 (de) * 2020-02-24 2022-03-09 Posco Nicht wärmebehandelter walzdraht mit ausgezeichneter drahtziehfähigkeit und schlagzähigkeit und verfahren zu seiner herstellung
KR20220074475A (ko) * 2020-11-27 2022-06-03 주식회사 포스코 절삭성 및 충격인성이 향상된 중탄소 비조질 선재 및 그 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023234700A1 *

Also Published As

Publication number Publication date
JP2025519192A (ja) 2025-06-24
WO2023234700A1 (ko) 2023-12-07
KR20250011608A (ko) 2025-01-21
EP4509631A1 (de) 2025-02-19
CN119213158A (zh) 2024-12-27

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