EP4613902A4 - Fil machine en fibre d'acier d'armature pour béton non soumis à un traitement thermique, fibre d'acier et procédés de fabrication associés - Google Patents

Fil machine en fibre d'acier d'armature pour béton non soumis à un traitement thermique, fibre d'acier et procédés de fabrication associés

Info

Publication number
EP4613902A4
EP4613902A4 EP23907459.4A EP23907459A EP4613902A4 EP 4613902 A4 EP4613902 A4 EP 4613902A4 EP 23907459 A EP23907459 A EP 23907459A EP 4613902 A4 EP4613902 A4 EP 4613902A4
Authority
EP
European Patent Office
Prior art keywords
steel fiber
manufacturing
heat treatment
wire rod
concrete reinforcement
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
EP23907459.4A
Other languages
German (de)
English (en)
Other versions
EP4613902A1 (fr
Inventor
Yosep Yang
Jaehwan Kim
Seongryeol Jeon
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 EP4613902A1 publication Critical patent/EP4613902A1/fr
Publication of EP4613902A4 publication Critical patent/EP4613902A4/fr
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
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
    • 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
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • 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
    • C21D8/08—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 for concrete reinforcement
    • 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
    • C22C38/002—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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C21D2211/005—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)
EP23907459.4A 2022-12-21 2023-11-24 Fil machine en fibre d'acier d'armature pour béton non soumis à un traitement thermique, fibre d'acier et procédés de fabrication associés Pending EP4613902A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220180140A KR20240098409A (ko) 2022-12-21 2022-12-21 열처리 생략형 콘크리트 보강 강섬유용 선재, 강섬유 및 이들의 제조 방법
PCT/KR2023/019121 WO2024136173A1 (fr) 2022-12-21 2023-11-24 Fil machine en fibre d'acier d'armature pour béton non soumis à un traitement thermique, fibre d'acier et procédés de fabrication associés

Publications (2)

Publication Number Publication Date
EP4613902A1 EP4613902A1 (fr) 2025-09-10
EP4613902A4 true EP4613902A4 (fr) 2026-04-15

Family

ID=91589287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23907459.4A Pending EP4613902A4 (fr) 2022-12-21 2023-11-24 Fil machine en fibre d'acier d'armature pour béton non soumis à un traitement thermique, fibre d'acier et procédés de fabrication associés

Country Status (5)

Country Link
EP (1) EP4613902A4 (fr)
JP (1) JP2025539890A (fr)
KR (1) KR20240098409A (fr)
CN (1) CN120418470A (fr)
WO (1) WO2024136173A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636553A1 (de) * 1975-08-15 1977-02-24 Kobe Steel Ltd Nicht-alternder superweichstahl mit einer ausgezeichneten verarbeitbarkeit
JP2006022397A (ja) * 2004-07-09 2006-01-26 Nippon Steel Corp 高速変形時の延性に優れたトーションバー用鋼
EP3075871A1 (fr) * 2013-11-29 2016-10-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Acier magnétique doux et son procédé de fabrication et élément magnétique doux obtenu de l'acier magnétique doux
KR20220089479A (ko) * 2020-12-21 2022-06-28 주식회사 포스코 강도 및 가공성이 향상된 강섬유용 선재, 강선 및 그 제조 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100398390B1 (ko) * 1998-12-24 2003-12-18 주식회사 포스코 성형가공성이우수한콘크리트보강용강섬유선재의제조방법
JP4088220B2 (ja) * 2002-09-26 2008-05-21 株式会社神戸製鋼所 伸線前の熱処理が省略可能な伸線加工性に優れた熱間圧延線材
JP2016056418A (ja) * 2014-09-10 2016-04-21 株式会社神戸製鋼所 冷間加工用鋼材
KR102117399B1 (ko) * 2018-10-15 2020-06-09 주식회사 포스코 고강도 강섬유용 선재, 고강도 강섬유 및 이들의 제조방법
CN111690877A (zh) * 2020-06-30 2020-09-22 张家港联峰钢铁研究所有限公司 一种超低碳钢纤维用热轧盘条的生产方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636553A1 (de) * 1975-08-15 1977-02-24 Kobe Steel Ltd Nicht-alternder superweichstahl mit einer ausgezeichneten verarbeitbarkeit
JP2006022397A (ja) * 2004-07-09 2006-01-26 Nippon Steel Corp 高速変形時の延性に優れたトーションバー用鋼
EP3075871A1 (fr) * 2013-11-29 2016-10-05 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Acier magnétique doux et son procédé de fabrication et élément magnétique doux obtenu de l'acier magnétique doux
KR20220089479A (ko) * 2020-12-21 2022-06-28 주식회사 포스코 강도 및 가공성이 향상된 강섬유용 선재, 강선 및 그 제조 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024136173A1 *

Also Published As

Publication number Publication date
WO2024136173A1 (fr) 2024-06-27
KR20240098409A (ko) 2024-06-28
CN120418470A (zh) 2025-08-01
JP2025539890A (ja) 2025-12-09
EP4613902A1 (fr) 2025-09-10

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