EP3533898B1 - Walzdraht und herstellungsverfahren dafür - Google Patents

Walzdraht und herstellungsverfahren dafür Download PDF

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EP3533898B1
EP3533898B1 EP17866036.1A EP17866036A EP3533898B1 EP 3533898 B1 EP3533898 B1 EP 3533898B1 EP 17866036 A EP17866036 A EP 17866036A EP 3533898 B1 EP3533898 B1 EP 3533898B1
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Prior art keywords
wire rod
pro
eutectoid cementite
content
wire
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English (en)
French (fr)
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EP3533898A4 (de
EP3533898A1 (de
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Masashi Sakamoto
Junichi Kodama
Keisuke Saito
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Nippon Steel Corp
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Nippon Steel Corp
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/56Continuous furnaces for strip or wire
    • C21D9/573Continuous furnaces for strip or wire with cooling
    • C21D9/5732Continuous furnaces for strip or wire with cooling of wires; of rods
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32Ferrous alloys, e.g. steel alloys containing chromium with boron
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/60Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/009Pearlite

Claims (5)

  1. Ein Walzdraht, umfassend in Massen-%:
    C: 0,90 % bis 1,15 %;
    Si: 0,10 % bis 0,50 %;
    Mn: 0,10 % bis 0,80 %;
    Cr: 0,10% bis 0,50 %;
    Ni: 0 % bis 0,50 %;
    Co: 0% bis 1,00%;
    Mo: 0 % bis 0,20 %;
    B: 0 % bis 0,0030 %;
    P: begrenzt auf 0,020 % oder weniger;
    S: begrenzt auf 0,010 % oder weniger; und
    einen Rest, der Fe und Verunreinigungen enthält,
    wobei, wenn ein Radius des Walzdrahtes als R angenommen wird, in einer Struktur, die in einem Zentralbereich innerhalb von (1/5)R von einem Zentrum eines Querschnitts des Walzdrahtes betrachtet wird, ein Flächenanteil an Perlit 90,0 % oder mehr beträgt und ein Flächenanteil an pro-eutektoidem Zementit 1,00 % oder weniger beträgt,
    eine durchschnittliche Dicke des pro-eutektoiden Zementits im Zentralbereich 0,25 µm oder weniger beträgt,
    eine Gesamtlänge des pro-eutektoiden Zementits, bezogen auf eine Flächeneinheit, im Zentralbereich weniger als 40,0 mm/mm2 beträgt,
    eine Zugfestigkeit des Walzdrahtes die Formel (1) erfüllt und
    ein Durchmesser des Walzdrahtes 3,0 bis 5,5 mm beträgt, 1000 × C-Gehalt % + 300 × Cr-Gehalt % + 70 TS 1000 × C-Gehalt % + 300 × Cr-Gehalt % + 160
    Figure imgb0008
    wobei die Gesamtlänge des pro-eutektoiden Zementits, bezogen auf eine Flächeneinheit (mm/mm2), eine Summe der Längen des bezogen auf eine Flächeneinheit betrachteten pro-eutektoiden Zementits ist, TS in Formel (1) für die Zugfestigkeit des Walzdrahtes steht, wenn eine Einheit von TS MPa ist, "C-Gehalt (%)" in Formel (1) für eine im Walzdraht enthaltene Menge an C in Massen-% steht und "Cr-Gehalt (%)" für eine im Walzdraht enthaltene Menge an Cr in Massen-% steht,
    wobei die TS, die durchschnittliche Dicke des pro-eutektoiden Zementits und die Gesamtlänge des pro-eutektoiden Zementits, bezogen auf eine Flächeneinheit, gemäß dem in der Beschreibung beschriebenen Verfahren gemessen werden.
  2. Der Walzdraht gemäß Anspruch 1,
    wobei der Walzdraht, in Massen-%, eines oder zwei oder mehrere von:
    Ni: 0,10 % bis 0,50 %;
    Co: 0,10 % bis 1,00 %;
    Mo: 0,05 % bis 0,20 %; und
    B: 0,0002 % bis 0,0030 % enthält.
  3. Der Walzdraht gemäß Anspruch 1 oder 2,
    wobei der Flächenanteil des pro-eutektoiden Zementits mehr als 0 % bis 1,00 % beträgt.
  4. Der Walzdraht gemäß einem der Ansprüche 1 bis 3,
    wobei der Walzdraht ein oder zwei oder mehr aus pro-eutektoidem Zementit, intergranularem Ferrit und Bainit in der im Zentralbereich betrachteten Struktur enthält.
  5. Ein Herstellungsverfahren für den Walzdraht gemäß einem der Ansprüche 1 bis 4, wobei ein Stahlteil mit einer Zusammensetzung gemäß Anspruch 1 unterzogen wird:
    einem Warmwalzen zu einem Durchmesser von 3,0 bis 5,5 mm;
    einem Wickeln bei 940 °C bis 800 °C; und
    einem Kühlen bei einer durchschnittlichen Abkühlgeschwindigkeit von 6,0 bis 15,0°C/s bis 650 °C nach dem Wickeln, bei einer durchschnittlichen Abkühlgeschwindigkeit von 1,0 bis 3,0 °C/s bei 650 °C bis 600 °C und bei einer durchschnittlichen Abkühlgeschwindigkeit von 10,0 °C/s oder mehr bei 600 °C bis 300 °C.
EP17866036.1A 2016-10-28 2017-10-30 Walzdraht und herstellungsverfahren dafür Active EP3533898B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016211590 2016-10-28
PCT/JP2017/039166 WO2018079781A1 (ja) 2016-10-28 2017-10-30 線材およびその製造方法

Publications (3)

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EP3533898A1 EP3533898A1 (de) 2019-09-04
EP3533898A4 EP3533898A4 (de) 2020-03-04
EP3533898B1 true EP3533898B1 (de) 2020-12-02

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EP (1) EP3533898B1 (de)
JP (1) JP6733741B2 (de)
KR (1) KR102247234B1 (de)
CN (1) CN109963960B (de)
WO (1) WO2018079781A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020080415A1 (ja) * 2018-10-16 2020-04-23 日本製鉄株式会社 熱間圧延線材
JP7230669B2 (ja) * 2019-04-24 2023-03-01 日本製鉄株式会社 鋼線及びアルミ被覆鋼線

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583929A (ja) * 1981-07-01 1983-01-10 Daido Steel Co Ltd 鋼線材の製造方法
JP2926195B2 (ja) * 1991-02-06 1999-07-28 新日本製鐵株式会社 伸線加工性に優れた高炭素鋼線の製造方法
JP2544867B2 (ja) * 1992-04-21 1996-10-16 新日本製鐵株式会社 過共析鋼線材の製造方法
JPH06228642A (ja) * 1993-02-01 1994-08-16 Nippon Steel Corp 過共析鋼線材の製造方法
JP3487957B2 (ja) * 1995-04-24 2004-01-19 新日本製鐵株式会社 伸線加工性の優れた線材
JP2001164337A (ja) * 1999-12-09 2001-06-19 Nippon Steel Corp 遅れ破壊特性の優れた高張力鋼材及びその製造方法
JP2001181789A (ja) 1999-12-22 2001-07-03 Nippon Steel Corp 伸線加工性に優れた細径高炭素鋼熱間圧延線材
JP4003450B2 (ja) * 2001-12-13 2007-11-07 住友金属工業株式会社 鋼線材、鋼線及びその製造方法
JP3997867B2 (ja) * 2002-09-04 2007-10-24 住友金属工業株式会社 鋼線材とその製造法及び当該鋼線材を用いる鋼線の製造法
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
JP2005206853A (ja) * 2004-01-20 2005-08-04 Kobe Steel Ltd 伸線加工性に優れた高炭素鋼線材およびその製造方法
KR101011565B1 (ko) * 2005-06-29 2011-01-27 신닛뽄세이테쯔 카부시키카이샤 신선 특성이 우수한 고강도 선재 및 그 제조 방법
EP2175043B1 (de) * 2008-03-25 2016-08-10 Nippon Steel & Sumitomo Metal Corporation Stahlstange und hochfester stahldraht mit hervorragender biegbarkeit und verfahren zu deren herstellung
JP5179331B2 (ja) 2008-12-02 2013-04-10 株式会社神戸製鋼所 伸線加工性およびメカニカルデスケーリング性に優れた熱間圧延線材およびその製造方法
KR101253852B1 (ko) * 2009-08-04 2013-04-12 주식회사 포스코 고인성 비조질 압연재, 신선재 및 그 제조방법
WO2011089782A1 (ja) * 2010-01-25 2011-07-28 新日本製鐵株式会社 線材、鋼線、及び線材の製造方法
CN102597291B (zh) * 2010-04-08 2015-05-20 新日铁住金株式会社 钢线锯用线材及其制造方法
JP4958998B1 (ja) * 2010-12-27 2012-06-20 株式会社神戸製鋼所 鋼線材及びその製造方法
JP6615485B2 (ja) 2015-04-28 2019-12-04 山下ゴム株式会社 液封防振装置

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
CN109963960A (zh) 2019-07-02
CN109963960B (zh) 2021-04-09
WO2018079781A1 (ja) 2018-05-03
EP3533898A4 (de) 2020-03-04
JPWO2018079781A1 (ja) 2019-09-19
JP6733741B2 (ja) 2020-08-05
KR102247234B1 (ko) 2021-05-03
KR20190073456A (ko) 2019-06-26
EP3533898A1 (de) 2019-09-04

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