EP4265768A4 - STEEL WIRE WITH IMPROVED DRAWABILITY AND MANUFACTURING PROCESS THEREFOR - Google Patents

STEEL WIRE WITH IMPROVED DRAWABILITY AND MANUFACTURING PROCESS THEREFOR Download PDF

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Publication number
EP4265768A4
EP4265768A4 EP21906896.2A EP21906896A EP4265768A4 EP 4265768 A4 EP4265768 A4 EP 4265768A4 EP 21906896 A EP21906896 A EP 21906896A EP 4265768 A4 EP4265768 A4 EP 4265768A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing process
steel wire
process therefor
improved drawability
drawability
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
EP21906896.2A
Other languages
German (de)
French (fr)
Other versions
EP4265768A1 (en
Inventor
Choongyeol LEE
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 EP4265768A1 publication Critical patent/EP4265768A1/en
Publication of EP4265768A4 publication Critical patent/EP4265768A4/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
    • 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
    • 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
    • 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
    • C22C38/02—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
    • 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
    • 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
    • C21D2211/009—Pearlite
    • 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

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)
EP21906896.2A 2020-12-15 2021-11-18 STEEL WIRE WITH IMPROVED DRAWABILITY AND MANUFACTURING PROCESS THEREFOR Pending EP4265768A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200175304A KR102464611B1 (en) 2020-12-15 2020-12-15 Steel wire with improved wire drawability and the method for manufacturing the same
PCT/KR2021/016988 WO2022131591A1 (en) 2020-12-15 2021-11-18 Steel wire with improved drawability, and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP4265768A1 EP4265768A1 (en) 2023-10-25
EP4265768A4 true EP4265768A4 (en) 2024-11-27

Family

ID=82057871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21906896.2A Pending EP4265768A4 (en) 2020-12-15 2021-11-18 STEEL WIRE WITH IMPROVED DRAWABILITY AND MANUFACTURING PROCESS THEREFOR

Country Status (5)

Country Link
US (1) US20240117459A1 (en)
EP (1) EP4265768A4 (en)
KR (1) KR102464611B1 (en)
CN (1) CN116829754A (en)
WO (1) WO2022131591A1 (en)

Citations (6)

* 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
EP1277846B1 (en) * 2001-06-28 2005-08-31 Kabushiki Kaisha Kobe Seiko Sho High-carbon steel wire rod with superior drawability and method for production thereof
KR20160075956A (en) * 2014-12-19 2016-06-30 주식회사 포스코 High strength steel wire and method for manufacturing the same
JP2016183408A (en) * 2015-03-26 2016-10-20 新日鐵住金株式会社 Hot rolled wire rod and production method therefor
KR101676130B1 (en) * 2014-12-19 2016-11-15 주식회사 포스코 Wire rod having high strength and ductility and method for manufacturing the same
EP3336205B1 (en) * 2016-12-16 2020-06-03 Posco High-strength steel wire and method of manufacturing the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000001751A (en) * 1998-04-15 2000-01-07 Nippon Steel Corp Breaking resistant high strength steel wire
JP3940270B2 (en) * 2000-04-07 2007-07-04 本田技研工業株式会社 Method for producing high-strength bolts with excellent delayed fracture resistance and relaxation resistance
JP2005206853A (en) * 2004-01-20 2005-08-04 Kobe Steel Ltd High carbon steel wire rod having excellent wire drawability, and production method therefor
JP5503515B2 (en) * 2010-12-15 2014-05-28 株式会社神戸製鋼所 High carbon steel wire rod excellent in dry drawing and method for producing the same
KR101316154B1 (en) * 2012-02-29 2013-10-08 주식회사 포스코 High carbon steel wire for aluminium conductor steel reinforced having superior electroconductivity and method of manufacturing the same
KR101461714B1 (en) * 2012-08-21 2014-11-14 주식회사 포스코 Steel wire rod and steel wire having excellent drawability and method for manufacturing thereof
EP3091097B1 (en) * 2014-03-28 2018-10-17 JFE Steel Corporation High-carbon hot-rolled steel sheet and method for producing same

Patent Citations (6)

* 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
EP1277846B1 (en) * 2001-06-28 2005-08-31 Kabushiki Kaisha Kobe Seiko Sho High-carbon steel wire rod with superior drawability and method for production thereof
KR20160075956A (en) * 2014-12-19 2016-06-30 주식회사 포스코 High strength steel wire and method for manufacturing the same
KR101676130B1 (en) * 2014-12-19 2016-11-15 주식회사 포스코 Wire rod having high strength and ductility and method for manufacturing the same
JP2016183408A (en) * 2015-03-26 2016-10-20 新日鐵住金株式会社 Hot rolled wire rod and production method therefor
EP3336205B1 (en) * 2016-12-16 2020-06-03 Posco High-strength steel wire and method of manufacturing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022131591A1 *

Also Published As

Publication number Publication date
KR102464611B1 (en) 2022-11-09
WO2022131591A1 (en) 2022-06-23
CN116829754A (en) 2023-09-29
EP4265768A1 (en) 2023-10-25
US20240117459A1 (en) 2024-04-11
KR20220085333A (en) 2022-06-22

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