EP4265766A4 - Walzdraht und teile mit verbesserter beständigkeit gegen verzögerte fraktur und verfahren zur herstellung davon - Google Patents

Walzdraht und teile mit verbesserter beständigkeit gegen verzögerte fraktur und verfahren zur herstellung davon

Info

Publication number
EP4265766A4
EP4265766A4 EP21907056.2A EP21907056A EP4265766A4 EP 4265766 A4 EP4265766 A4 EP 4265766A4 EP 21907056 A EP21907056 A EP 21907056A EP 4265766 A4 EP4265766 A4 EP 4265766A4
Authority
EP
European Patent Office
Prior art keywords
producing
parts
same
wire rod
improved resistance
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
EP21907056.2A
Other languages
English (en)
French (fr)
Other versions
EP4265766A1 (de
Inventor
Youngsoo Chun
Sang-Yoon Lee
Seok-Hwan Choi
Myungsoo 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 EP4265766A1 publication Critical patent/EP4265766A1/de
Publication of EP4265766A4 publication Critical patent/EP4265766A4/de
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
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/32—Soft annealing, e.g. spheroidising
    • 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
    • C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
    • 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
    • C22C38/002—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • 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 Articles (AREA)
EP21907056.2A 2020-12-18 2021-12-14 Walzdraht und teile mit verbesserter beständigkeit gegen verzögerte fraktur und verfahren zur herstellung davon Pending EP4265766A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200178274A KR102492644B1 (ko) 2020-12-18 2020-12-18 지연파괴 저항성이 향상된 선재, 부품 및 그 제조방법
PCT/KR2021/018977 WO2022131752A1 (ko) 2020-12-18 2021-12-14 지연파괴 저항성이 향상된 선재, 부품 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4265766A1 EP4265766A1 (de) 2023-10-25
EP4265766A4 true EP4265766A4 (de) 2025-10-01

Family

ID=82059247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21907056.2A Pending EP4265766A4 (de) 2020-12-18 2021-12-14 Walzdraht und teile mit verbesserter beständigkeit gegen verzögerte fraktur und verfahren zur herstellung davon

Country Status (6)

Country Link
US (1) US20240060162A1 (de)
EP (1) EP4265766A4 (de)
JP (2) JP2024500152A (de)
KR (1) KR102492644B1 (de)
CN (1) CN116783316A (de)
WO (1) WO2022131752A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005133152A (ja) * 2003-10-30 2005-05-26 Kobe Steel Ltd 冷間加工性及び耐衝撃特性に優れた高周波焼入用高強度線材及びこの線材を利用した鋼部品
KR20100076743A (ko) * 2008-12-26 2010-07-06 주식회사 포스코 반복 가압 특성이 우수한 저온 압력용기용 고강도 강판, 그제조방법 및 딥 드로잉 제품의 제조방법
WO2011108459A1 (ja) * 2010-03-02 2011-09-09 新日本製鐵株式会社 冷間鍛造性に優れた鋼線及びその製造方法
EP2832875A1 (de) * 2012-03-26 2015-02-04 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Hochfester bolzenstahl mit borzusatz und hervorragender beständigkeit gegen verzögerte fraktur sowie hochfester bolzen
EP3252184A1 (de) * 2015-01-27 2017-12-06 Nippon Steel & Sumitomo Metal Corporation Material für ungehärteten maschinenteil, stahlstab für ungehärteten maschinenteil und ungehärteter maschinenteil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1036940A (ja) * 1996-07-19 1998-02-10 Kobe Steel Ltd 耐遅れ破壊性に優れた高強度ボルト用鋼およびボルト
JP3535754B2 (ja) * 1998-02-10 2004-06-07 株式会社神戸製鋼所 冷間加工性と耐遅れ破壊性に優れたｂ含有鋼およびその製造方法並びにボルト
JP3966493B2 (ja) 1999-05-26 2007-08-29 新日本製鐵株式会社 冷間鍛造用線材及びその製造方法
KR101033752B1 (ko) * 2005-02-16 2011-05-09 신닛뽄세이테쯔 카부시키카이샤 구상화 처리 후의 냉간 단조성이 우수한 열간 압연 선재,우수한 냉간 단조성을 갖는 구상화 어닐링 처리된 강선, 및그들의 제조 방법
JP5776623B2 (ja) * 2012-05-08 2015-09-09 新日鐵住金株式会社 冷間加工性に優れた鋼線材・棒鋼とその製造方法
KR101665886B1 (ko) 2015-09-04 2016-10-13 주식회사 포스코 냉간가공성 및 충격인성이 우수한 비조질강 및 그 제조방법
CN107815594A (zh) * 2017-11-12 2018-03-20 湖南华菱湘潭钢铁有限公司 一种冷挤压齿轮盘条的生产方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005133152A (ja) * 2003-10-30 2005-05-26 Kobe Steel Ltd 冷間加工性及び耐衝撃特性に優れた高周波焼入用高強度線材及びこの線材を利用した鋼部品
KR20100076743A (ko) * 2008-12-26 2010-07-06 주식회사 포스코 반복 가압 특성이 우수한 저온 압력용기용 고강도 강판, 그제조방법 및 딥 드로잉 제품의 제조방법
WO2011108459A1 (ja) * 2010-03-02 2011-09-09 新日本製鐵株式会社 冷間鍛造性に優れた鋼線及びその製造方法
EP2832875A1 (de) * 2012-03-26 2015-02-04 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Hochfester bolzenstahl mit borzusatz und hervorragender beständigkeit gegen verzögerte fraktur sowie hochfester bolzen
EP3252184A1 (de) * 2015-01-27 2017-12-06 Nippon Steel & Sumitomo Metal Corporation Material für ungehärteten maschinenteil, stahlstab für ungehärteten maschinenteil und ungehärteter maschinenteil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022131752A1 *

Also Published As

Publication number Publication date
WO2022131752A1 (ko) 2022-06-23
KR102492644B1 (ko) 2023-01-30
KR20220087847A (ko) 2022-06-27
JP2025148485A (ja) 2025-10-07
EP4265766A1 (de) 2023-10-25
CN116783316A (zh) 2023-09-19
JP2024500152A (ja) 2024-01-04
US20240060162A1 (en) 2024-02-22

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