EP0953651B1 - Rostfreier Stahl zur Herstellung von gezogenem Draht, insbesondere zur Verstärkung von Reifen, und so hergestellter Draht - Google Patents

Rostfreier Stahl zur Herstellung von gezogenem Draht, insbesondere zur Verstärkung von Reifen, und so hergestellter Draht Download PDF

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Publication number
EP0953651B1
EP0953651B1 EP99400979A EP99400979A EP0953651B1 EP 0953651 B1 EP0953651 B1 EP 0953651B1 EP 99400979 A EP99400979 A EP 99400979A EP 99400979 A EP99400979 A EP 99400979A EP 0953651 B1 EP0953651 B1 EP 0953651B1
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European Patent Office
Prior art keywords
wire
less
diameter
copper
steel
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Expired - Lifetime
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EP99400979A
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English (en)
French (fr)
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EP0953651A1 (de
Inventor
Jean-Michel Hauser
Joel Marandel
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ugitech
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Sprint Metal Societe de Production Internationale de Trefiles
Ugine Savoie Imphy SA
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • 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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12778—Alternative base metals from diverse categories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12903—Cu-base component
    • Y10T428/12917—Next to Fe-base component
    • Y10T428/12924—Fe-base has 0.01-1.7% carbon [i.e., steel]

Definitions

  • the present invention relates to a method for producing a wire drawn wire, in particular tire reinforcement wire of diameter less than 0.3 mm, by drawing a basic wire-rod of a diameter greater than 5 mm or a previously drawn wire.
  • Metal reinforcing threads of elastomers for tires which can be used in the field of production of parts subjected to fatigue, must have a small diameter, generally between 0.1 mm and 0.4 mm, and characteristics mechanical high.
  • the tensile load at break can be greater than 2200 MPa
  • the residual ductility measured by the narrowing in tension, torsion or by loopback test must be non-zero
  • the fatigue endurance limit by rotary or alternating bending shall be greater than 1000 MPa.
  • the patent application FR 93 12 528 (EP-A-648891) deals with the use of a wire stainless steel with a diameter of between 0.05 mm and 0.5 mm the breaking strength Rm is greater than 2000 MPa.
  • Steel of which is composed the yarn contains in its composition at least 50% of martensite obtained, by drawing, at a reduction rate higher than 2.11 with intermediate annealing, the sum of the nickel and chromium being between 20% and 35%.
  • Patent No. 97 01 858 (European Application EP-A-859064) deals with the production of a steel wire austenitic stainless steel in the form of drawn hardened wire containing a certain proportion of martensite formed during drawing, wire drawing being performed without annealing, with a higher cumulative reduction rate to 6.
  • compositions particularly stable vis-à-vis martensite hardening that allow obtaining tensile loads greater than 2200 MPa when the cumulative deformation is very high and greater than 6.
  • Tire reinforcements are generally made by stranding of wires of diameter between 0.1 mm and 0.30 mm. In In the case of stainless steels, a breaking load of 2200 MPa is sufficient in view of the fact that the service behavior of the steel is not, or only slightly, degraded by the environment wet.
  • the object of the invention is to produce a drawn wire, in particular tire reinforcement thread of diameter less than 0.4 mm per wire drawing of a basic machine wire of diameter greater than or equal to 5 mm or a pre-drawn steel wire of composition given, and having a mechanical characteristic in charge at the rupture greater than 2200 MPa and preferably greater than 2400 MPa without fragility, that is to say with a narrowing non-zero in traction.
  • FIG. 1 shows the maximum cumulative deformation rate ⁇ that can be achieved by industrial drawing between the two drawing operations, as a function of the index JM defined by the relationship satisfying the composition.
  • FIG. 2 shows, as a function of the cumulative deformation rate ⁇ the evolution of the load at break, in the process according to the invention (steel A and B), compared to that of reference steels, excluding the invention.
  • the fine wire is made by wire drawing from a wire rod or a pre-drawn steel wire. Because of the composition of steel, after wire drawing, the final drawn wire has improved properties of tensile strength and residual ductility sufficient for its in assembly, for example in the form of plies, cables.
  • the drawing is carried out with a stainless steel of general weight composition A and B presented in Table 1, the steel C, E, F, G being taken as a reference.
  • the invention makes it possible to define an austenitic stainless steel capable of being drawn without annealing from the diameter wire rod greater than 5 mm to a diameter of between 0,7 mm and 2 mm, then, to be annealed at this intermediate diameter, and, possibly coated, for example brass, and finally to be drawn to new without annealing, between drawing passes, up to a diameter between 0.4 mm and 0.1 mm.
  • a mechanical characteristic load at break Rm greater than 2200 MPa, and preferably greater than 2400 MPa, without fragile character.
  • composition according to the invention satisfies a relationship JM included within a certain limited range such as for reduction rates cumulated specific during final drawing between ⁇ greater than 3, (from 1.6 mm to less than 0.357 mm, from 1.2 mm to less than 0.268 mm; from 0.8 mm to less than 0.179 mm), and ⁇ less than 4.5, 1.6 mm to more than 0.169 mm; from 1.2 mm to more than 0.126 mm; 0.8 mm to more than 0.0084 mm), live wire drawing of final diameter wire between 0.1 mm and 0.4 mm is possible without excessive brittleness, with a breaking load greater than 2200 MPa.
  • a relationship JM included within a certain limited range such as for reduction rates cumulated specific during final drawing between ⁇ greater than 3, (from 1.6 mm to less than 0.357 mm, from 1.2 mm to less than 0.268 mm; from 0.8 mm to less than 0.179 mm), and ⁇ less than 4.5, 1.6 mm to more
  • Direct wire drawing refers to a drawing operation comprising a succession of drawing passes for each of which the wire engagement temperature is between ambient temperature and 200 ° C, without the wire being brought to a temperature above 600 ° C.
  • Table 1 presents, for comparison, steel compositions not satisfying the characteristics of the invention (steels C, E, F, G).
  • Table 2 shows some examples of drawing on steels according to the invention and outside the invention.
  • Steel Initial diameter (mm) Final diameter (mm) cumulative ⁇ Rm MPa Martensite% drawing AT 4.36 1.19 2.60 2214 53 correct 4.36 0.68 3.72 2500 69 breakages B 1.0 0.18 3.43 2064 - correct 5.67 1.0 3.47 1828 16 correct VS 5.56 0.59 4.49 2165 69 correct 5.56 0.55 4.63 2211 72 - 5.56 0.25 6.24 2666 87 breakages E 5.6 0.672 4.24 2069 62 correct 5.6 0,355 5.52 2424 86 correct 5.6 0.178 6.90 2644 90 breakages F 5.5 1.8 2.14 1950 22 cques breaks BOY WUT 1.95 0.7 2.10 2064 35 cques breaks
  • the drawing of the wire is preferably carried out on a machine multipasses the wire being, on the one hand, lubricated with soap or lubricant liquid, and on the other hand, temperature controlled between 20 ° C and 180 ° C.
  • the wire may also be brassed between the two operations of drawing.
  • the brass layer improves the drawing ability and the adhesion of the yarn with the elastomers of the tires.
  • gamma-gene elements favor the appearance of the austenite phase of metallographic structure of cubic type with faces centered. These elements include carbon, nitrogen, manganese, copper, nickel.
  • Carbon, nitrogen, chromium, nickel, manganese, silicon are the usual elements for obtaining a steel austenitic stainless.
  • compositions forming a quantity excessive martensite wire drawing become brittle and brittle at drawing.
  • This amount of martensite is a function of the total content carbon and nitrogen in steel and is in the order of 70% for a total carbon and nitrogen content less than or equal to 0,060%, and by example, by 30% for a total carbon and nitrogen content of approximately 0.100%.
  • the steel has a total carbon and nitrogen content of less than or equal to 0.060%, the drawing conditions satisfying the following relation: -55 ⁇ JM ⁇ -30
  • compositions having a subscript JM greater than the value determined above and a total content of carbon and nitrogen in the order of 0.040% become brittle before to achieve wire drawing at the final diameter.
  • the contents of manganese, chromium and sulfur are chosen in proportion to generate deformable sulfides of composition well determined.
  • Copper is added to the composition of the steel according to the invention because it stabilizes the austenite and as a result, improves the properties of cold deformation.
  • the copper content is limited to 4% to avoid difficulties of hot transformation because copper, in amount greater than 4% substantially lower the upper limit of reheating temperature of the steel before rolling, beyond which is a local merger.
  • the sulfur content must be less than 0.030% to obtain thick sulphide inclusions not exceeding 5 ⁇ m on rolled product.
  • Coarse inclusions such as oxides and sulphides are generally considered to be harmful to property in the field of fine wire drawing and in the field of fatigue resistance, especially in flexion and / or torsion.
  • composition of the stainless steel according to the invention containing more than 5% nickel, more than 0.01% copper, more than 10% of chromium, a total carbon and nitrogen content of less than 0,060%, a JM index less than -30, can be drawn by the method of the invention up to the final diameter with a reduced breakage rate, the wire retaining mechanical characteristics that allow its use in the field of tire reinforcement.
  • the JM should be in the range -55 to -30. Indeed, if JM is less than -55, the amount of martensite formed remains low and the load at break can not reach high values greater than 2200 MPa, even after final drawing with a cumulative deformation ⁇ close to 4.5.
  • the process applied to the drawing of the stainless steel according to the invention makes it possible to obtain a yarn having excellent fatigue strength measured by rotary bending with an endurance stress at 2.10 6 cycles greater than 1000 MPa.
  • the yarn obtained contains less than 50% of austenite or more than 50% of martensite.
  • the steel used is austenite slightly unstable with a total carbon and nitrogen content of less than 0.060%.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Ropes Or Cables (AREA)
  • Metal Extraction Processes (AREA)
  • Tyre Moulding (AREA)

Claims (7)

  1. Verfahren zur Herstellung von gezogenen Drähten und insbesondere Drähten zur Verstärkung von Luftreifen mit einem Durchmesser unter 0,4 mm durch Ziehen von Walzbasisdrähten mit einem Durchmesser über 5 mm oder von vorab gezogenen Basisdrähten aus einem Stahl mit der folgenden massebezogenen Zusammensetzung:
    0,005 % ≤ Kohlenstof ≤ 0,050 %,
    0,005 % ≤ Stickstoff ≤ 0,050 %,
    wobei Kohlenstoff und Stickstoff vorzugsweise die Beziehung
    C % + N % ≤ 60·10-3 % erfüllen,
    0,1 % ≤ Silicium ≤ 2,0 %,
    0,1 % ≤ Mangan ≤ 5 %,
    5 % ≤ Nickel ≤ 12 %,
    10 % ≤ Chrom ≤ 20 %,
    0,01 % ≤ Kupfer ≤ 4 %,
    0,01 % ≤ Molybdän ≤ 3 %,
    0,0001 % ≤ Schwefel ≤ 0,030 %,
    0,005 % ≤ Phosphor < 0,10 %,
    wobei der Rest aus Eisen und aus der Verarbeitung stammenden Verunreinigungen in einer Menge unter 0,5 % für jedes Element und einem Gesamtgehalt unter 1 % besteht,
    wobei die Zusammensetzung die folgende Beziehung erfüllt: JM = 551 - 462 · (C % + N %) - 9,2 · Si % - 20 · Mn % - 13,7 · Cr % -29 · (Ni % + Cu %) - 18,5 · Mo %, mit:
    -55 < JM < -30, und
    wobei die Basisdrähte folgendermaßen behandelt werden:
    zunächst Ziehen mit einem Gesamtdeformationsgrad ε über 2 und unter 4, um Drähte mit einem Durchmesser im Bereich von 2 bis 0,7 mm herzustellen,
    zwischenzeitliche Wärmebehandlung über 700 °C, um eine hauptsächlich austenitische, weichgemachte Struktur zu bilden,
    gegebenenfalls Konditionierung vor der endgültigen Reduktion,
    Ziehen mit einem Gesamtdeformationsgrad ε unter 4, 5 und über 3, um Drähte mit einem Durchmesser im Bereich von 0,1 bis 0,4 mm herzustellen,
    wobei die Drähte während den beiden Ziehvorgängen auf einer Temperatur unter 600 °C ohne Wärmebehandlung zwischen den Ziehvorgängen gehalten werden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Zusammensetzung ferner die folgende Beziehung erfüllt: JM = 551 - 462 · (C % + N %) - 9,2 · Si % - 20 · Mn % - 13,7 · Cr % -29 · (Ni % + Cu %) - 18,5 · Mo %, mit:
    -55 < JM < -30, wobei der Deformationsgrad beim Ziehen in der folgenden Beziehung mit JM steht: - 9,23ε - 17 < JM < -9,23ε + 3.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Zusammensetzung 3 bis 4 % Kupfer enthält.
  4. Verfahren nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Konditionierung vor dem endgültigen Ziehen ferner eine Beschichtung mit einem Metall oder einer metallischen Legierung darstellt, die unter Kupfer, Messing oder Zink ausgewählt sind.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die zwischenzeitliche Wärmebehandlung bei einer Temperatur im Bereich von 700 bis 1350 °C während einer Zeitspanne erfolgt, die an die Temperatur und das Heizverfahren angepasst ist.
  6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Konditionierung vor dem endgültigen Ziehen ferner eine Diffusionsbehandlung für die Abscheidungen von Kupfer, Zink oder Messing auf dem geglühten Draht bei weniger als 700 °C umfasst.
  7. Stahldrähte, die gemäß dem Verfahren nach den Ansprüchen 1 bis 6 hergestellt wurden, und insbesondere Drähte zur Verstärkung von Luftreifen mit einem Durchmesser unter 0,4 mm, die durch Ziehen von Walzbasisdrähten mit einem Durchmesser über 5 mm oder von vorab gezogenen Basisdrähten hergestellt werden, gekennzeichnet durch die folgende massebezogene Zusammensetzung:
    0,005 % ≤ Kohlenstoff ≤ 0,050 %,
    0,005 % ≤ Stickstoff ≤ 0,050 %,
    wobei Kohlenstoff und Stickstoff vorzugsweise die Beziehung
    C % + N % ≤ 60·10-3 % erfüllen,
    0,1 % ≤ Silicium ≤ 2,0 %,
    0,1 % ≤ Mangan ≤ 5 %,
    5 % ≤ Nickel ≤ 12 %,
    10 % ≤ Chrom ≤ 20 %,
    0,01 % ≤ Kupfer ≤ 4 %,
    0,01 % ≤ Molybdän ≤ 3 %,
    0,0001 % ≤ Schwefel ≤ 0,030 %,
    0,005 % ≤ Phosphor < 0,10 %,
    wobei die aus der Verarbeitung stammenden Verunreinigungen in einer Menge unter 0,5 % für jedes Element und einem Gesamtgehalt unter 1 % enthalten sind,
    wobei die Drähte gegebenenfalls bei der Bearbeitung vor dem endgültigen Ziehen einer Konditionierung unterzogen werden, die eine Beschichtung mit einem Metall oder einer metallischen Legierung, die unter Kupfer, Messing oder Zink ausgewählt sind, gegebenenfalls in Kombination mit einer Diffusionsbehandlung umfasst.
EP99400979A 1998-04-29 1999-04-22 Rostfreier Stahl zur Herstellung von gezogenem Draht, insbesondere zur Verstärkung von Reifen, und so hergestellter Draht Expired - Lifetime EP0953651B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9805356A FR2778188B1 (fr) 1998-04-29 1998-04-29 Acier inoxydable pour l'elaboration de fil trefile notamment de fil de renfort de pneumatique et procede de realisation dudit fil
FR9805356 1998-04-29

Publications (2)

Publication Number Publication Date
EP0953651A1 EP0953651A1 (de) 1999-11-03
EP0953651B1 true EP0953651B1 (de) 2003-06-25

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EP99400979A Expired - Lifetime EP0953651B1 (de) 1998-04-29 1999-04-22 Rostfreier Stahl zur Herstellung von gezogenem Draht, insbesondere zur Verstärkung von Reifen, und so hergestellter Draht

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US (1) US6048416A (de)
EP (1) EP0953651B1 (de)
AT (1) ATE243770T1 (de)
DE (1) DE69909012T2 (de)
FR (1) FR2778188B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7166174B2 (en) 2001-07-20 2007-01-23 Nv Bekaert Sa Bundle drawn stainless steel fibers

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6537396B1 (en) 2001-02-20 2003-03-25 Ace Manufacturing & Parts Company Cryogenic processing of springs and high cycle rate items
US6715331B1 (en) 2002-12-18 2004-04-06 The Goodyear Tire & Rubber Company Drawing of steel wire
US6949149B2 (en) * 2002-12-18 2005-09-27 The Goodyear Tire & Rubber Company High strength, high carbon steel wire
CN100503871C (zh) * 2007-08-15 2009-06-24 金雹峰 一种铁合金
CN101775560B (zh) * 2009-01-14 2012-09-26 宝山钢铁股份有限公司 一种节镍奥氏体不锈钢及其制造方法
UA111115C2 (uk) 2012-04-02 2016-03-25 Ейкей Стіл Пропертіс, Інк. Рентабельна феритна нержавіюча сталь
FR2995231B1 (fr) * 2012-09-07 2014-08-29 Michelin & Cie Procede de trefilage
FR3013737B1 (fr) * 2013-11-22 2016-01-01 Michelin & Cie Fil d'acier a haute trefilabilite comprenant un taux de carbone en masse compris entre 0,05 % inclus et 0,4 % exclu
FR3035412A1 (fr) * 2015-04-24 2016-10-28 Michelin & Cie Procede de trefilage et fil obtenu par ce procede de trefilage
KR101964314B1 (ko) * 2017-08-21 2019-08-07 주식회사포스코 가공성 및 내시효균열성이 우수한 오스테나이트계 스테인리스강 및 이를 이용한 드로잉 가공품
CN113941617A (zh) * 2021-10-25 2022-01-18 山东津丝新材料科技有限公司 一种用于纺织的银铜合金长丝的生产工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096405B1 (de) * 1970-06-22 1974-03-08 Bridgestone Tire Co Ltd
US3819399A (en) * 1972-07-26 1974-06-25 Monsanto Co Treating metal clad steel wire for application of organic adhesive
FR2194195A5 (de) * 1972-07-28 1974-02-22 Creusot Loire
JPH0762171B2 (ja) * 1989-07-28 1995-07-05 新日本製鐵株式会社 伸線性ならびに冷間圧延性に優れたオーステナイト系ステンレス鋼の製造方法
FR2666352B1 (fr) * 1990-08-30 1992-12-11 Ugine Savoie Sa Procede d'elaboration de produits a tres haute charge a la rupture a partir d'un acier austhenitique instable, et produits en resultant.
JPH05271771A (ja) * 1992-03-23 1993-10-19 Sumitomo Metal Ind Ltd 伸線性に優れたステンレス鋼線材の製造方法
FR2711149A1 (fr) * 1993-10-15 1995-04-21 Michelin & Cie Fil en acier inoxydable pour carcasse d'enveloppe de pneumatique.
FR2725730A1 (fr) * 1994-10-12 1996-04-19 Michelin & Cie Fil en acier inoxydable pour renforcer le sommet des enveloppes de pneumatiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7166174B2 (en) 2001-07-20 2007-01-23 Nv Bekaert Sa Bundle drawn stainless steel fibers

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DE69909012D1 (de) 2003-07-31
DE69909012T2 (de) 2004-04-01
FR2778188B1 (fr) 2000-06-02
FR2778188A1 (fr) 1999-11-05
EP0953651A1 (de) 1999-11-03
US6048416A (en) 2000-04-11
ATE243770T1 (de) 2003-07-15

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