EP4394072A4 - Graphitstahlwalzdraht mit zusätzlichem schwefel, stahldraht und graphitstahl mit hervorragender schneidleistung und herstellungsverfahren dafür - Google Patents

Graphitstahlwalzdraht mit zusätzlichem schwefel, stahldraht und graphitstahl mit hervorragender schneidleistung und herstellungsverfahren dafür

Info

Publication number
EP4394072A4
EP4394072A4 EP22881305.1A EP22881305A EP4394072A4 EP 4394072 A4 EP4394072 A4 EP 4394072A4 EP 22881305 A EP22881305 A EP 22881305A EP 4394072 A4 EP4394072 A4 EP 4394072A4
Authority
EP
European Patent Office
Prior art keywords
steel
wire
graphite
manufacturing process
graphite steel
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
EP22881305.1A
Other languages
English (en)
French (fr)
Other versions
EP4394072A1 (de
Inventor
Sangwoo 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 EP4394072A1 publication Critical patent/EP4394072A1/de
Publication of EP4394072A4 publication Critical patent/EP4394072A4/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, rods or tubes
    • 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
    • C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited 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
    • C22C38/06—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
    • C21D2211/009—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)
EP22881305.1A 2021-10-12 2022-10-11 Graphitstahlwalzdraht mit zusätzlichem schwefel, stahldraht und graphitstahl mit hervorragender schneidleistung und herstellungsverfahren dafür Pending EP4394072A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020210135091A KR20230052013A (ko) 2021-10-12 2021-10-12 절삭성능이 우수한 유황 첨가 흑연강 선재, 강선, 흑연강 및 그 제조방법
PCT/KR2022/015274 WO2023063678A1 (ko) 2021-10-12 2022-10-11 절삭성능이 우수한 유황 첨가 흑연강 선재, 강선, 흑연강 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4394072A1 EP4394072A1 (de) 2024-07-03
EP4394072A4 true EP4394072A4 (de) 2025-10-29

Family

ID=85988461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22881305.1A Pending EP4394072A4 (de) 2021-10-12 2022-10-11 Graphitstahlwalzdraht mit zusätzlichem schwefel, stahldraht und graphitstahl mit hervorragender schneidleistung und herstellungsverfahren dafür

Country Status (6)

Country Link
US (1) US20240401167A1 (de)
EP (1) EP4394072A4 (de)
JP (1) JP2024536913A (de)
KR (1) KR20230052013A (de)
CN (1) CN118076760A (de)
WO (1) WO2023063678A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20250091693A (ko) * 2023-12-14 2025-06-23 주식회사 포스코 쾌삭강 및 그 제조방법
WO2025125881A1 (en) * 2023-12-15 2025-06-19 Arcelormittal A hot worked and annealed graphitic steel for parts machining and manufacturing method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160064324A (ko) * 2014-11-27 2016-06-08 주식회사 포스코 표면 흑연화 선재 및 그 제조 방법
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
KR20200045906A (ko) * 2018-10-23 2020-05-06 주식회사 포스코 절삭성 및 연자성이 우수한 흑연강 및 그 제조방법
KR20200075643A (ko) * 2018-12-18 2020-06-26 주식회사 포스코 흑연화 열처리용 선재와 흑연강 및 그 제조방법
WO2021149849A1 (ko) * 2020-01-22 2021-07-29 주식회사 포스코 흑연화 열처리용 선재와 흑연강 및 그 제조방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11131187A (ja) * 1997-10-24 1999-05-18 Kobe Steel Ltd 迅速黒鉛化鋼および迅速黒鉛化鋼の製造方法
JP4119516B2 (ja) * 1998-03-04 2008-07-16 新日本製鐵株式会社 冷間鍛造用鋼
JP3764273B2 (ja) * 1998-06-04 2006-04-05 Ｊｆｅ条鋼株式会社 被削性に優れた熱間鍛造鋼部品の製造方法、その部品、それに用いる熱間圧延鋼材及び鋼材の製造方法
JP4494676B2 (ja) * 2001-07-23 2010-06-30 新日本製鐵株式会社 被削性に優れた機械構造用鋼
US8945719B2 (en) * 2010-01-25 2015-02-03 Nippon Steel & Sumitomo Metal Corporation Steel plate for cold forging and process for producing same
KR101657792B1 (ko) * 2014-12-11 2016-09-20 주식회사 포스코 흑연화 열처리용 강재 및 피삭성이 우수한 흑연강
WO2017199442A1 (ja) * 2016-05-20 2017-11-23 新日鐵住金株式会社 熱間鍛造品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160064324A (ko) * 2014-11-27 2016-06-08 주식회사 포스코 표면 흑연화 선재 및 그 제조 방법
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
KR20200045906A (ko) * 2018-10-23 2020-05-06 주식회사 포스코 절삭성 및 연자성이 우수한 흑연강 및 그 제조방법
KR20200075643A (ko) * 2018-12-18 2020-06-26 주식회사 포스코 흑연화 열처리용 선재와 흑연강 및 그 제조방법
WO2021149849A1 (ko) * 2020-01-22 2021-07-29 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 WO2023063678A1 *

Also Published As

Publication number Publication date
EP4394072A1 (de) 2024-07-03
CN118076760A (zh) 2024-05-24
US20240401167A1 (en) 2024-12-05
KR20230052013A (ko) 2023-04-19
WO2023063678A1 (ko) 2023-04-20
JP2024536913A (ja) 2024-10-08

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Ipc: C22C 38/02 20060101AFI20250925BHEP

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