EP4512923A4 - Nicht abgeschreckter und nichtgetemperter stahldraht für warmschmieden mit hervorragender bearbeitbarkeit und schlagzähigkeit und verfahren zur herstellung davon - Google Patents

Nicht abgeschreckter und nichtgetemperter stahldraht für warmschmieden mit hervorragender bearbeitbarkeit und schlagzähigkeit und verfahren zur herstellung davon

Info

Publication number
EP4512923A4
EP4512923A4 EP23816363.8A EP23816363A EP4512923A4 EP 4512923 A4 EP4512923 A4 EP 4512923A4 EP 23816363 A EP23816363 A EP 23816363A EP 4512923 A4 EP4512923 A4 EP 4512923A4
Authority
EP
European Patent Office
Prior art keywords
tempered
producing
steel wire
impact strength
hot 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
EP23816363.8A
Other languages
English (en)
French (fr)
Other versions
EP4512923A1 (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 EP4512923A1 publication Critical patent/EP4512923A1/de
Publication of EP4512923A4 publication Critical patent/EP4512923A4/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
    • 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
    • B21B3/02—Rolling special iron alloys, e.g. stainless 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
    • 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
    • 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
    • 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
    • C22C38/06—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
    • C22C38/18—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
    • C22C38/60—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
    • C21D2211/004—Dispersions; Precipitations
    • 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)
EP23816363.8A 2022-05-31 2023-05-31 Nicht abgeschreckter und nichtgetemperter stahldraht für warmschmieden mit hervorragender bearbeitbarkeit und schlagzähigkeit und verfahren zur herstellung davon Pending EP4512923A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20220066880 2022-05-31
PCT/KR2023/007444 WO2023234702A1 (ko) 2022-05-31 2023-05-31 절삭성과 충격인성이 우수한 열간단조용 비조질 선재 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4512923A1 EP4512923A1 (de) 2025-02-26
EP4512923A4 true EP4512923A4 (de) 2026-04-01

Family

ID=89025282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23816363.8A Pending EP4512923A4 (de) 2022-05-31 2023-05-31 Nicht abgeschreckter und nichtgetemperter stahldraht für warmschmieden mit hervorragender bearbeitbarkeit und schlagzähigkeit und verfahren zur herstellung davon

Country Status (6)

Country Link
US (1) US20250320587A1 (de)
EP (1) EP4512923A4 (de)
JP (1) JP2025519207A (de)
KR (1) KR20250011609A (de)
CN (1) CN119213159A (de)
WO (1) WO2023234702A1 (de)

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
JP2000282172A (ja) * 1999-01-28 2000-10-10 Sumitomo Metal Ind Ltd 被削性と靱性に優れた機械構造用鋼材及び機械構造部品
JP2008057021A (ja) * 2006-09-04 2008-03-13 Sumitomo Metal Ind Ltd 機械構造用鋼材
JP2008231544A (ja) * 2007-03-23 2008-10-02 Sumitomo Metal Ind Ltd 非調質鋼材およびその製造方法
JP2010144226A (ja) * 2008-12-19 2010-07-01 Sumitomo Metal Ind Ltd 高周波焼入れ用圧延鋼材およびその製造方法
EP3396002A1 (de) * 2015-12-25 2018-10-31 Nippon Steel & Sumitomo Metal Corporation Stahlbauteil
KR20210077530A (ko) * 2019-12-17 2021-06-25 주식회사 포스코 절삭성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
EP4502221A1 (de) * 2022-05-27 2025-02-05 POSCO Co., Ltd Nicht vergüteter und gehärteter stahlstabdraht zum warmschmieden mit verbesserter bearbeitbarkeit und zähigkeit und verfahren zur herstellung davon

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1072619A (ja) * 1996-08-30 1998-03-17 Kawasaki Steel Corp 機械構造用鋼の製造方法
JPH1129842A (ja) * 1997-07-15 1999-02-02 Sumitomo Metal Ind Ltd フェライト・パーライト型非調質鋼
JP3671688B2 (ja) * 1998-08-28 2005-07-13 株式会社神戸製鋼所 破断分断性に優れた破断分割型コンロッド用熱間鍛造用非調質鋼
JP3737323B2 (ja) * 1999-09-17 2006-01-18 株式会社神戸製鋼所 球状化後の冷間鍛造性に優れた鋼線材・棒鋼およびその製造方法
JP4556334B2 (ja) * 2001-02-01 2010-10-06 大同特殊鋼株式会社 軟窒化用非調質鋼熱間鍛造部品
CN1218061C (zh) * 2002-11-25 2005-09-07 宝山钢铁股份有限公司 一种钙处理钒－氮－钛微合金化非调质钢及其制备工艺
EP1700925B1 (de) * 2005-03-09 2009-09-09 Ovako Bar Oy Ab Hochfester luftgekühlter Stahl und daraus resultiertes warmverformte Produkt.
US9376738B2 (en) * 2007-10-29 2016-06-28 Nippon Steel & Sumitomo Metal Corporation Hot forging use non-heat-treated steel and hot forged non-heat-treated steel part
JP5251872B2 (ja) * 2008-02-26 2013-07-31 新日鐵住金株式会社 破断分離性及び被削性に優れた熱間鍛造用非調質鋼及び熱間圧延鋼材、並びに熱間鍛造非調質鋼部品
KR101630978B1 (ko) * 2014-12-11 2016-06-16 주식회사 포스코 냉간가공성이 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
JP2000282172A (ja) * 1999-01-28 2000-10-10 Sumitomo Metal Ind Ltd 被削性と靱性に優れた機械構造用鋼材及び機械構造部品
JP2008057021A (ja) * 2006-09-04 2008-03-13 Sumitomo Metal Ind Ltd 機械構造用鋼材
JP2008231544A (ja) * 2007-03-23 2008-10-02 Sumitomo Metal Ind Ltd 非調質鋼材およびその製造方法
JP2010144226A (ja) * 2008-12-19 2010-07-01 Sumitomo Metal Ind Ltd 高周波焼入れ用圧延鋼材およびその製造方法
EP3396002A1 (de) * 2015-12-25 2018-10-31 Nippon Steel & Sumitomo Metal Corporation Stahlbauteil
KR20210077530A (ko) * 2019-12-17 2021-06-25 주식회사 포스코 절삭성 및 충격인성이 우수한 비조질 선재 및 그 제조방법
EP4502221A1 (de) * 2022-05-27 2025-02-05 POSCO Co., Ltd Nicht vergüteter und gehärteter stahlstabdraht zum warmschmieden mit verbesserter bearbeitbarkeit und zähigkeit und verfahren zur herstellung davon

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023234702A1 *

Also Published As

Publication number Publication date
US20250320587A1 (en) 2025-10-16
CN119213159A (zh) 2024-12-27
JP2025519207A (ja) 2025-06-24
KR20250011609A (ko) 2025-01-21
WO2023234702A1 (ko) 2023-12-07
EP4512923A1 (de) 2025-02-26

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