EP4265800A4 - Fil machine pour traitement thermique de graphitisation, et acier au graphite - Google Patents

Fil machine pour traitement thermique de graphitisation, et acier au graphite

Info

Publication number
EP4265800A4
EP4265800A4 EP21907168.5A EP21907168A EP4265800A4 EP 4265800 A4 EP4265800 A4 EP 4265800A4 EP 21907168 A EP21907168 A EP 21907168A EP 4265800 A4 EP4265800 A4 EP 4265800A4
Authority
EP
European Patent Office
Prior art keywords
heat treatment
wire rod
graphite steel
graphitization heat
graphitization
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.)
Withdrawn
Application number
EP21907168.5A
Other languages
German (de)
English (en)
Other versions
EP4265800A1 (fr
Inventor
Byounggab Lee
Ingyu Park
Cheolki Kim
Sangwoo Choi
Kiho Rhee
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 EP4265800A1 publication Critical patent/EP4265800A1/fr
Publication of EP4265800A4 publication Critical patent/EP4265800A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • C21D2211/005—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)
EP21907168.5A 2020-12-18 2021-12-17 Fil machine pour traitement thermique de graphitisation, et acier au graphite Withdrawn EP4265800A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200178565A KR102497429B1 (ko) 2020-12-18 2020-12-18 절삭성 및 연자성이 우수한 흑연화 열처리용 선재 및 흑연강
PCT/KR2021/019313 WO2022131864A1 (fr) 2020-12-18 2021-12-17 Fil machine pour traitement thermique de graphitisation, et acier au graphite

Publications (2)

Publication Number Publication Date
EP4265800A1 EP4265800A1 (fr) 2023-10-25
EP4265800A4 true EP4265800A4 (fr) 2025-10-15

Family

ID=82057944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21907168.5A Withdrawn EP4265800A4 (fr) 2020-12-18 2021-12-17 Fil machine pour traitement thermique de graphitisation, et acier au graphite

Country Status (5)

Country Link
EP (1) EP4265800A4 (fr)
JP (1) JP2024500138A (fr)
KR (1) KR102497429B1 (fr)
CN (1) CN116806276A (fr)
WO (1) WO2022131864A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102497435B1 (ko) * 2020-12-18 2023-02-08 주식회사 포스코 흑연화 열처리용 선재 및 흑연강
WO2025125881A1 (fr) * 2023-12-15 2025-06-19 Arcelormittal Acier graphitique travaillé à chaud et recuit pour usinage de pièces et son procédé de fabrication

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019112711A (ja) * 2017-12-21 2019-07-11 ポスコＰｏｓｃｏ 黒鉛鋼用鋼材および被削性が向上した黒鉛鋼
KR20200075643A (ko) * 2018-12-18 2020-06-26 주식회사 포스코 흑연화 열처리용 선재와 흑연강 및 그 제조방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476556A (en) 1993-08-02 1995-12-19 Kawasaki Steel Corporation Method of manufacturing steel for machine structural use exhibiting excellent free cutting characteristic, cold forging characteristic and post-hardening/tempering fatigue resistance
JPH07188850A (ja) * 1993-12-28 1995-07-25 Kawasaki Steel Corp 被削性に優れた黒鉛快削鋼
JP4084462B2 (ja) * 1998-06-04 2008-04-30 Ｊｆｅ条鋼株式会社 快削熱間加工鋼材およびその製造方法
JP3255612B2 (ja) * 1998-08-19 2002-02-12 エヌケーケー条鋼株式会社 超快削鋼棒線材の製造方法及びそれによる超快削鋼棒線材
CN102962423B (zh) * 2012-11-28 2014-12-10 江苏共昌轧辊股份有限公司 离心复合高碳高硼高速钢复合辊套及其组合轧辊的制造方法
JP6528920B2 (ja) * 2017-05-18 2019-06-12 日本製鉄株式会社 線材、及び鋼線の製造方法
CN109207840B (zh) * 2017-06-29 2020-12-22 宝山钢铁股份有限公司 一种易切削非调质钢及其制造方法
KR102126971B1 (ko) * 2018-10-23 2020-06-25 주식회사 포스코 절삭성 및 연자성이 우수한 흑연강 및 그 제조방법
KR102497435B1 (ko) * 2020-12-18 2023-02-08 주식회사 포스코 흑연화 열처리용 선재 및 흑연강

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019112711A (ja) * 2017-12-21 2019-07-11 ポスコＰｏｓｃｏ 黒鉛鋼用鋼材および被削性が向上した黒鉛鋼
KR20200075643A (ko) * 2018-12-18 2020-06-26 주식회사 포스코 흑연화 열처리용 선재와 흑연강 및 그 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022131864A1 *

Also Published As

Publication number Publication date
CN116806276A (zh) 2023-09-26
EP4265800A1 (fr) 2023-10-25
JP2024500138A (ja) 2024-01-04
KR102497429B1 (ko) 2023-02-10
KR20220087978A (ko) 2022-06-27
WO2022131864A1 (fr) 2022-06-23

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