EP3988678B1 - Fil machine - Google Patents

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Publication number
EP3988678B1
EP3988678B1 EP20827854.9A EP20827854A EP3988678B1 EP 3988678 B1 EP3988678 B1 EP 3988678B1 EP 20827854 A EP20827854 A EP 20827854A EP 3988678 B1 EP3988678 B1 EP 3988678B1
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EP
European Patent Office
Prior art keywords
wire rod
wire
less
hydrogen embrittlement
steel wire
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EP20827854.9A
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German (de)
English (en)
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EP3988678A1 (fr
EP3988678A4 (fr
Inventor
Naoki Matsui
Hiroshi Ooba
Makoto Okonogi
Toshihiko TESHIMA
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Nippon Steel Corp
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Nippon Steel Corp
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    • 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
    • C22C38/001—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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C21D1/32—Soft annealing, e.g. spheroidising
    • 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
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/46—Salt baths
    • 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
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/48—Metal baths
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/607—Molten salts
    • 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
    • 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
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys

Definitions

  • the amount of B is set to 0.0050% or less, preferably 0.0030% or less, and more preferably 0.0020% or less.
  • the high-strength steel wire can be obtained by subjecting a wire rod having an appropriately controlled chemical composition and metal structure to wire drawing processing. It is preferable to form a fine pearlite structure having high uniformity up to a central portion by reheating the wire rod before wire drawing processing to subject the wire rod to a patenting treatment, or directly dipping the wire rod into a salt bath furnace after rolling to subject the wire rod to an isothermal transformation treatment.
  • Y1 is a parameter required for controlling the hardenability of the wire rod to provide strength required by forming a fine pearlite structure having high uniformity from a surface to a central portion, and improving the hydrogen embrittlement resistance of the wire rod. Y1 should be from 1.70 to 4.50.
  • the wire rod according to the present invention eight samples are collected at arbitrary equal intervals, and the relationship between the maximum value Hv simax and average value Hv siave of Vickers hardness Hv si measured at a position of a depth of 50 ⁇ m (hereinafter, may be referred to as "50 ⁇ m depth") from the surface of the wire rod in the axial cross section (cross section parallel to the longitudinal direction including the central axis) of each sample satisfies the following (4): Hv simax ⁇ Hv siave ⁇ 50 .
  • the tensile strength of the wire rod is more preferably 1200 MPa or more, and still more preferably 1300 MPa or more.
  • a structure other than the pearlite structure is a non-pearlite structure which cannot be discriminated as a pearlite structure being a lamellar structure of cementite and ferrite, such as partially produced martensite, bainite, and pro-eutectoid ferrite.
  • the outer peripheral portion of the test piece cut to have a length of 100 mm from the axial direction of the central portion of the wire rod was evenly shaved to cut out two test pieces each machined to have a diameter of 7 mm and a length of 100 mm.
  • the corrosion test was performed with (1) salt water spraying (5% NaCl spray, 35°C, 2 hr), (2) drying (humidity: 20%, 60°C, 4 hr), and (3) wetting (humidity: 95%, 50°C, 2 hr) as one cycle using a dry-wet cyclic corrosion tester capable of spraying salt water.
  • a test period was set to 12 weeks.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (3)

  1. Fil machine comprenant une composition chimique consistant, en % en masse, en
    C : 0,60 à 1,15 %,
    Si : 0,01 à 1,80 %,
    Mn : 0,20 à 0,90 %,
    P : 0,015 % ou moins,
    S : 0,015 % ou moins,
    Al : 0,005 à 0,080 %,
    N : 0,0015 à 0,0060 %,
    Cu : 0,10 à 0,65 %,
    Ni : 0,05 à moins de 0,65 %,
    Cr : 0 à 0,30 %,
    Mo : 0 à 0,30 %,
    Ti : 0 à 0,100 %,
    Nb : 0 à 0,100%,
    V: 0 à 0,20 %,
    Sn : 0 à 0,30 %,
    B : 0 à 0,0050 %,
    Ca : 0 à 0,0050 %,
    Mg : 0 à 0,0050 %,
    Zr : 0 à 0,100 %,
    REM (éléments des terres rares) : 0 à 0,0200 % ; et le reste étant du Fe et des impuretés,
    dans lequel :
    le fil machine satisfait aux conditions (1) à (3) suivantes : Cu / Ni > 1,00 ;
    Figure imgb0038
     1,70 ≤ Y 1 ≤ 4,50 ;
    Figure imgb0039
     Y 1 = 3 × Cr + 5 × Mn + Cu + Ni ;
    Figure imgb0040
     et Y 2 < 1,81 ,
    Figure imgb0041
     Y 2 = C + Si / 10 + A ;
    Figure imgb0042
    les teneurs en les éléments C, Si, Mn, Cr, Cu, Ni, N et Ti contenus dans le fil machine en % en masse étant représentées par [C], [Si], [Mn], [Cr], [Cu], [Ni], [N] et [Ti], respectivement,
    et A satisfaisant à A = a si la valeur de a = 350 × ([N] - 0,29 × [Ti]) satisfait à a ≥ 0, et A = 0 si la valeur satisfait à a < 0 ;
    la structure métallique du fil machine contient une structure de perlite ayant un rapport de section de 90 % ou plus dans une section transversale parallèle à une direction longitudinale incluant un axe central du fil machine ; et
    le fil machine satisfait à la condition (4) suivante : Hv simax − Hv siave ≤ 50
    Figure imgb0043
    la dureté Vickers mesurée à une position de profondeur de 50 µm depuis une surface du fil machine dans la section transversale pour chacun de huit échantillons si (i est un entier de 1 à 8) collectés à des intervalles identiques arbitraires dans la direction longitudinale du fil machine étant Hvsi, et la valeur moyenne et la valeur maximale de Hvsi étant respectivement Hvsiave et Hvsimax, laquelle dureté Vickers est mesurée comme défini dans la description.
  2. Fil machine selon la revendication 1, dans lequel les intervalles identiques arbitraires sont des intervalles de 600 mm.
  3. Fil machine selon la revendication 1 ou 2, dans lequel la composition chimique comprend un ou deux ou plus de deux choisis dans le groupe consistant, en % en masse, en
    Cr : 0,01 à 0,30 %,
    Mo : 0,01 à 0,30 %,
    Ti : 0,002 à 0,100 %,
    Nb : 0,002 à 0,100 %,
    V : 0,01 à 0,20 %,
    Sn : 0,01 à 0,30 %,
    B : 0,0002 à 0,0050 %,
    Ca : 0,0002 à 0,0050 %,
    Mg : 0,0002 à 0,0050 %,
    Zr : 0,0002 à 0,100 %, et
    REM : 0,0002 à 0,200 %, à la place d'une partie du Fe.
EP20827854.9A 2019-06-19 2020-06-19 Fil machine Active EP3988678B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019113720 2019-06-19
PCT/JP2020/024248 WO2020256140A1 (fr) 2019-06-19 2020-06-19 Fil machine

Publications (3)

Publication Number Publication Date
EP3988678A1 EP3988678A1 (fr) 2022-04-27
EP3988678A4 EP3988678A4 (fr) 2022-07-06
EP3988678B1 true EP3988678B1 (fr) 2023-12-06

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EP (1) EP3988678B1 (fr)
JP (1) JP7226548B2 (fr)
CN (1) CN113748224B (fr)
WO (1) WO2020256140A1 (fr)

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CN111589893A (zh) * 2020-04-16 2020-08-28 江苏兴达钢帘线股份有限公司 一种橡胶软管增强用钢丝及其生产工艺
JP7469642B2 (ja) 2020-05-21 2024-04-17 日本製鉄株式会社 高強度鋼線
CN114807767B (zh) * 2022-05-06 2023-01-13 鞍钢股份有限公司 一种具有双重复相组织的高碳钢盘条及其制造方法
WO2024161785A1 (fr) * 2023-01-30 2024-08-08 Ｊｆｅスチール株式会社 Matériau d'acier laminé à chaud et son procédé de production
WO2024161659A1 (fr) * 2023-02-03 2024-08-08 日本製鉄株式会社 Fil machine, fil d'acier, câble et procédé de production de câble

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JP4124590B2 (ja) * 2001-12-28 2008-07-23 株式会社神戸製鋼所 耐遅れ破壊性および耐食性に優れた高強度鋼線
JP5315790B2 (ja) * 2008-05-19 2013-10-16 新日鐵住金株式会社 耐遅れ破壊特性に優れた高強度ｐｃ鋼線
JP5742801B2 (ja) 2012-08-20 2015-07-01 新日鐵住金株式会社 熱間圧延棒鋼または線材
JP6093212B2 (ja) * 2013-03-15 2017-03-08 株式会社神戸製鋼所 冷間加工性又は被削性に優れた鋼材の製造方法
JP6212473B2 (ja) 2013-12-27 2017-10-11 株式会社神戸製鋼所 高強度ばね用圧延材及びこれを用いた高強度ばね用ワイヤ
CN105960477B (zh) * 2014-02-06 2018-11-06 新日铁住金株式会社 钢线
JP6416709B2 (ja) * 2015-07-21 2018-10-31 新日鐵住金株式会社 高強度ｐｃ鋼線
JP6416708B2 (ja) * 2015-07-21 2018-10-31 新日鐵住金株式会社 高強度ｐｃ鋼線
CN108138285B (zh) * 2015-10-23 2020-02-21 日本制铁株式会社 拉丝加工用钢丝材
JP6687112B2 (ja) 2016-07-14 2020-04-22 日本製鉄株式会社 鋼線
MY197958A (en) 2016-07-29 2023-07-25 Nippon Steel & Sumitomo Metal Corp High strength steel wire
JP2019113720A (ja) 2017-12-25 2019-07-11 日本精機株式会社 車両周辺表示制御装置

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WO2020256140A1 (fr) 2020-12-24
JPWO2020256140A1 (fr) 2020-12-24
EP3988678A1 (fr) 2022-04-27
JP7226548B2 (ja) 2023-02-21
EP3988678A4 (fr) 2022-07-06
CN113748224B (zh) 2022-05-03
CN113748224A (zh) 2021-12-03

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