[go: up one dir, main page]

WO2015193099A1 - Câble en acier 4+9+14 - Google Patents

Câble en acier 4+9+14 Download PDF

Info

Publication number
WO2015193099A1
WO2015193099A1 PCT/EP2015/062201 EP2015062201W WO2015193099A1 WO 2015193099 A1 WO2015193099 A1 WO 2015193099A1 EP 2015062201 W EP2015062201 W EP 2015062201W WO 2015193099 A1 WO2015193099 A1 WO 2015193099A1
Authority
WO
WIPO (PCT)
Prior art keywords
filaments
lay
steel cord
twist
cord
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.)
Ceased
Application number
PCT/EP2015/062201
Other languages
English (en)
Inventor
Aijun Zhang
Haidong XI
Wei Wang
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.)
Bekaert NV SA
Original Assignee
Bekaert NV SA
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 Bekaert NV SA filed Critical Bekaert NV SA
Publication of WO2015193099A1 publication Critical patent/WO2015193099A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
    • D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0646—Reinforcing cords for rubber or plastic articles comprising longitudinally preformed wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B60C2009/0085—Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B60C2009/0092—Twist structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B60C2009/0425—Diameters of the cords; Linear density thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B60C2009/0466—Twist structures
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/2006—Wires or filaments characterised by a value or range of the dimension given
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/201—Wires or filaments characterised by a coating
    • D07B2201/2011—Wires or filaments characterised by a coating comprising metals
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2025—Strands twisted characterised by a value or range of the pitch parameter given
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2029—Open winding
    • D07B2201/203—Cylinder winding, i.e. S/Z or Z/S
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2029—Open winding
    • D07B2201/2031—Different twist pitch
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2015—Strands
    • D07B2201/2024—Strands twisted
    • D07B2201/2029—Open winding
    • D07B2201/2031—Different twist pitch
    • D07B2201/2032—Different twist pitch compared with the core
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3025—Steel
    • D07B2205/3035—Pearlite
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3085—Alloys, i.e. non ferrous
    • D07B2205/3089—Brass, i.e. copper (Cu) and zinc (Zn) alloys
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/20—Type of machine
    • D07B2207/204—Double twist winding
    • D07B2207/205—Double twist winding comprising flyer
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/20—Type of machine
    • D07B2207/209—Tubular strander
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2055—Improving load capacity
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/208—Enabling filler penetration

Definitions

  • the invention relates to a steel cord for reinforcing pneumatic tires, this invention also relates to use of the steel cord for carcass reinforcement of pneumatic tires.
  • Prior art US5595057A discloses a 3+9+15 cord for carcass reinforcement.
  • this cord because the filaments around the core are pre-formed according to a forming ratio, the structure of the cord is maintained without a wrap wire. Therefore, the fretting wear between the filaments in the outer layer and the wrap wire is avoided. But because the twisting direction of intermediate layer is opposite to the twisting direction of the outer layer, fretting wear from the point contact between the filaments in the
  • Prior art US5318643A discloses a 27 CC compact cord, wherein the 27 filaments are twisted in the same direction with the same twisting pitch. Because all the filaments are twisted in the same direction with the same twisting pitch, filaments maintain line contact with adjacent filaments, and the fretting between filaments is limited. But this compact structure has inherent drawback on rubber penetration, because the line contact between filaments seals the routes for rubber to permeate through the cord.
  • Prior art JP59223503A discloses a 4+9+14 cord, wherein the intermediate layer and the outer layer of the cord are unsaturated. There are gaps between the filaments of the intermediate layer and the filaments of the outer layer for rubber penetration. But the breaking load of the steel cord needs further improvement. Disclosure of Invention
  • a steel cord for reinforcing pneumatic tires is a multi-layer steel cord comprising a core, an
  • the core has four filaments and preferably consists of four steel filaments
  • the intermediate lay has nine filaments and preferably consists of nine steel filaments
  • the outer lay has fourteen filaments and preferably consists of fourteen steel filaments.
  • At least one filament in the intermediate lay and the outer lay of the steel cord has a tensile strength no less than (3800-2000xd) MPa where d is the diameter of the filament expressed in mm.
  • the other filaments in the intermediate lay and the outer lay may have a tensile strength that is lower.
  • all the filaments in the intermediate lay and outer lay of the steel cord have a tensile strength no less than (3800-2000xd) MPa where d is the diameter of the respective filaments expressed in mm.
  • the tensile strength of a filament in the intermediate lay and the outer lay means the tensile strength of the filaments after twisting into a steel cord: to measure, firstly release the filament from the steel cord and secondly make a tensile test according to ISO6892-1 :2009.
  • the original tensile strength of the filament to be stranded into the steel cord should be no less than (4100-2000d) MPa.
  • the super tensile filaments give the steel cord the basis for a high breaking load, meanwhile the 4+9+14 structure provides gaps between filaments for rubber penetration.
  • the filaments of the core may have the same or a different tensile strength level.
  • the twist direction of the intermediate lay may be the same as the twist direction of the outer lay, and preferably the twist direction of the core may be the same as the twist direction of the intermediate lay.
  • the same twist direction provides more line contact between filaments in different lays, in contrast to point contacts. Line contacts limit the fretting wear.
  • All the filaments may have preferably the same filament diameter, and the filament diameter may range between 0.10mm and 0.40mm, and preferably between 0.15mm and 0.35mm.
  • the same filament diameter simplifies the preparation of filaments for this steel cord. Since the 4+9+14 structure already provides gaps for rubber penetration, it is not necessary to enlarge the filament diameter for core.
  • the ratio between the lay length of intermediate lay and the lay length of the outer lay may preferably range between 0.70 and 0.90, and most preferably between 0.75 and 0.85.
  • the higher ratio between the lay length further extends the line contact between filaments in different lays, and further limits the fretting wear.
  • the higher ratio also limits the tensile strength loss due to the twisting of the cord. This advantage is even higher with the high tensile strength levels applied in this invention, since the twisting loss tends to be higher with higher tensile strengths.
  • a forming ratio is defined as a ratio of
  • the forming ratio of the filaments in the intermediate lay and that of filaments in the outer lay may range between 0.75 and 0.95, and preferably between 0.85 and 0.95. This applied forming ratio of the filaments maintains the structure of the steel cord without a wrap wire.
  • the steel cord may have no flare. Flare means the spreading of the filament ends or the strand ends at the cut end of the cord, expressed as the unravelled length in millimetres. No flare means the filament ends at the cut end of cord do not spread.
  • At least one of the filaments may show a twist around its own axis in
  • all the filaments may show a twist round its own axis in addition to the twist around the central axis of the steel cord.
  • the cord can be made on a double twisting machine, wherein the filament has a twist around its own axis in addition to the twist around the central axis of the steel cord.
  • the double twisting machine provides the most cost-effective way to manufacture a multi-layer cord.
  • a steel cord for carcass reinforcement of pneumatic tires and the steel cord is a multilayer steel cord comprising a core, an intermediate lay and an outer lay.
  • the core has four filaments
  • the intermediate lay has nine filaments
  • the outer lay has fourteen filaments. At least one filament of the
  • intermediate lay and outer lay of the steel cord has a tensile strength no less than (3800-2000xd) MPa where d is the diameter of the filament expressed in mm.
  • Figure 1 schematically illustrates a cross-sectional view of a steel cord incorporating present invention.
  • Figures 2A, 2B and 2C schematically illustrate a device and process to manufacture a steel cord incorporating present invention.
  • FIGS. 3A, 3B and 3C schematically illustrate another device and process to manufacture a steel cord incorporating present invention. Mode(s) for Carrying Out the Invention
  • a typical steel tire cord composition has a minimum carbon content of 0.65%, a manganese content ranging from 0.40% to 0.70%, a silicon content ranging from 0.15% to 0.30%, a maximum sulphur content of 0.03%, a maximum phosphorus content of 0.30%, all percentages being percentages by weight. There are only traces of copper, nickel and / or chromium.
  • a typical steel tire cord composition for high-tensile steel cord has a minimum carbon content of between 0.80 and 0.85 weight %. To further improve the tensile strength of the steel filaments, the minimum carbon content may range between 0.85 and 0.90 weight %, or even between 0.90 and 0.95 weight %.
  • other alloy ingradients may be added, for example Cr.
  • the process to manufacture steel filaments for a steel cord always starts with a wire rod with above steel composition.
  • the wire rod is firstly cleaned by mechanical descaling and / or by chemical pickling in a H2SO4 or HCI solution in order to remove the oxides present on the surface.
  • the wire rod is then rinsed in water and is dried.
  • the dried wire rod is then subjected to a first series of dry drawing operations in order to reduce the diameter until a first intermediate diameter.
  • Patenting means first austenitizing until a temperature of about 1000 °C followed by a transformation phase from austenite to pearlite at a temperature of about 600 - 650 °C. The steel wire is then ready for further mechanical deformation.
  • the steel wire is further dry drawn from the first intermediate diameter d1 until a second intermediate diameter d2 in a second number of diameter reduction steps.
  • the second diameter d2 typically ranges from 1 .0 mm to 2.5 mm.
  • the steel wire is subjected to a second patenting treatment, i.e. austenitizing again at a temperature of about 1000 °C and thereafter quenching at a temperature of 600 to 650 °C to allow for transformation to pearlite.
  • a direct drawing operation can be done from wire rod till diameter d2.
  • the steel wire is usually provided with a brass coating: copper is plated on the steel wire and zinc is plated on the copper. A thermo-diffusion treatment is applied to form the brass coating.
  • the brass-coated steel wire is then subjected to a final series of cross- section reductions by means of wet drawing machines.
  • the final product is a steel filament with a carbon content above 0.60 per cent by weight, with a tensile strength typically above 2000 MPa and adapted for the reinforcement of elastomer products.
  • the brass-coating may contain other ingrediants, for example Co, to form a ternary alloy coating comprising Cu, Zn and Co to further improve the adhesion between the steel filaments and the polymer matrix when the steel cord is embeded into a polymer matrix.
  • other ingrediants for example Co, to form a ternary alloy coating comprising Cu, Zn and Co to further improve the adhesion between the steel filaments and the polymer matrix when the steel cord is embeded into a polymer matrix.
  • filaments with a final diameter ranging from 0.05 mm to 0.60 mm, e.g. from 0.10 mm to 0.40 mm.
  • filament diameters are 0.10 mm, 0.12 mm, 0.15 mm, 0.175 mm, 0.18 mm, 0.20 mm, 0.22 mm, 0.245 mm, 0.28 mm, 0.30 mm, 0.32 mm, 0.35 mm, 0.38 mm, 0.40 mm.
  • FIG. 1 schematically illustrates a cross-sectional view of a steel cord incorporating present invention.
  • the steel cord 10 is a multi-layer steel cord comprising a core, an intermediate layer and an outer layer.
  • the core has four core filaments 12, the intermediate layer has nine intermediate filaments 14, and the outer layer has fourteen outer filaments 16. There are gaps between the intermediate filaments 14 and outer filaments 16 for rubber penetration.
  • One of the embodiments of present invention is a 4+9+14x0.20 ST cord with following specifications.
  • the filament diameter is 0.20 mm with an original tensile strength no less than 3700 Mpa. All the filaments are twisted in the same direction.
  • the four core filaments are twisted with a lay length 6mm.
  • the nine intermediate lay filaments are twisted with a lay length 12mm, and the fourteen outer lay filaments are twisted with a lay length 15mm.
  • FIGS. 2A, 2B and 2C schematically illustrate a device and process to manufacture a steel cord incorporating present invention.
  • Figure 2A shows a cabling machine 18 to make the 4x1 core strand 20, wherein four spools of core filaments 12 are installed inside the drum 22.
  • the four core filaments 12 are led through the surface of the drum 22, to the cord forming point 24.
  • the drum 22 rotates, the four core filaments 12 are twisted together at the cord forming point 24.
  • Figure 2B shows a cabling machine 18 to make the 4+9 strand 26,
  • FIG. 1C shows a cabling machine 18 to make the 4+9+14 steel cord 10, wherein fourteen spools of outer lay filaments 16 are installed inside the drum 22 and the 4+9 strand 26 is installed outside the drum 22.
  • the fourteen outer lay filaments 16 are led through the surface of drum 22 to the cord forming point 24.
  • the 4+9 strand 26 is led through the surface of the drum 22 to the cord forming point 24.
  • the 4+9 strand 26 is located in the centre and the fourteen outer lay filaments 16 are surrounding the 4+9 strand 26.
  • the fourteen outer lay filaments 16 are twisted around the 4+9 strand 26 at the cord forming point 24 to form the 4+9+14 steel cord 10.
  • Figures 3A, 3B and 3C schematically illustrate another device and process to manufacture a steel cord incorporating present invention.
  • Figure 3A shows a double twist machine 28 to make the 4x1 core strand 20, wherein the four core filaments 12 are located outside the machine and are led through the cord forming point 24, the first twist point 30, the flyer 32, the second twist point 34, and to the spool 36 winding the 4x1 core strand 20.
  • the flyer 32 rotates, the four core filaments 12 firstly receive the first twist at the first twist point 30, and secondly receive the second twist at the second twist point 34. Therefore, the 4x1 core strand 20 receives two twists when the flyer 32 rotates once.
  • Figure 3B shows a double twist machine 28 to make the 4+9 strand 26, wherein the 4x1 core strand 20 and the nine intermediate filaments 14 are located outside the machine and are led through the cord forming point 24, the first twist point 30, the flyer 32, the second twist point 34, and to the spool 38 winding the 4+9 strand 26.
  • the 4x1 core strand 20 is located in the centre and the nine intermediate filaments 14 are surrounding the 4x1 core strand 20.
  • the flyer 32 rotates, the 4x1 core strand 20 and the nine intermediate filaments 14 are firstly twisted together at the first twist point 30, and secondly receive the second twist at the second twist point 34.
  • the 4+9 strand 26 receives two twists when the flyer 32 rotates once. Besides, since the 4x1 core strand 20 receives the same twist as the intermediate filament 14 in Figure 3B, the lay length of 4x1 core strand 20 for Figure 3B can be longer than that for Figure 2B.
  • Figure 3C shows a double twist machine 40 to make the 4+9+14 cord, wherein the 4+9 strand 26 is located outside the machine while the fourteen spools of outer filaments 16 are located inside the machine.
  • the 4+9 strand 26 is led through the first twist point 42, the first flyer 44, the second twist point 46, to get together with the fourteen outer filaments 16 at the cord forming point 24.
  • the 4+9 strand 26 and the fourteen outer filaments 16 are stranded together at the third twist point 47, and are further led through the second flyer 48 and the second twist point 49 to the spool 50 winding the finished 4+9+14 steel cord 10.
  • the 4+9 strand 26 receives the first twist at the first twist point 42 and a second twist at the second twist point 46.
  • the 4+9 strand 26 and the fourteen outer filaments 16 receive the first twist at the third twist point 47 and the second twist at the fourth twist point 49. Since the first flyer 44 and the second flyer 48 form a loop, both the first flyer 44 and the second flyer 48 rotate at the same direction. Since the 4+9 strand 26 on the first flyer 44 runs in the opposite direction against the 4+9 strand 26 on the second flyer 48. The second flyer 48 gives reverse twist on the 4+9 strand 26. i.e.
  • the first flyer 44 gives two twists to the 4+9 strand 26 while the second flyer 48 gives two reverse twists to the 4+9 strand 26. Therefore, the 4+9 strand 26 maintains the lay length from Figure 3B in the final product 4+9+14, and the fourteen outer filaments are twisted around the 4+9 strand 26.
  • the same twist direction between the intermediate lay and outer lay can improve the breaking load from 2500N to 2700N, while the increase of the ratio between the lay length of intermediate lay and the lay length of outer lay can further improve the breaking load from 2700N to 3000N.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ropes Or Cables (AREA)

Abstract

L'invention porte sur un câble en acier pour renforcer un pneu, lequel câble est un câble en acier multicouche comprenant un cœur, une couche intermédiaire et une couche externe. Le cœur a quatre filaments, la couche intermédiaire a neuf filaments, et la couche externe a quatorze filaments. Au moins un filament du câble en acier a une résistance à la traction qui n'est pas inférieure à (3800 – 2000 x d) MPa, et d est le diamètre du filament. La direction de torsion des filaments peut être la même, et le rapport entre la longueur de pose de la couche intermédiaire et la longueur de pose de la couche externe est entre 0,70 et 0,90. Ce câble en acier produit un bon équilibre entre la résistance à la traction et la pénétration du caoutchouc, mais est également rentable du point de vue des coûts pour la fabrication et l'utilisation.
PCT/EP2015/062201 2014-06-18 2015-06-02 Câble en acier 4+9+14 Ceased WO2015193099A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2014/080185 2014-06-18
CN2014080185 2014-06-18

Publications (1)

Publication Number Publication Date
WO2015193099A1 true WO2015193099A1 (fr) 2015-12-23

Family

ID=53298355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/062201 Ceased WO2015193099A1 (fr) 2014-06-18 2015-06-02 Câble en acier 4+9+14

Country Status (2)

Country Link
CN (1) CN105648810A (fr)
WO (1) WO2015193099A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019243688A1 (fr) * 2018-06-20 2019-12-26 Compagnie Generale Des Etablissements Michelin Câble multi-torons à deux couches à pénétrabilité améliorée
WO2019243687A1 (fr) * 2018-06-20 2019-12-26 Compagnie Generale Des Etablissements Michelin Câble multi-torons à deux couches à pénétrabilité améliorée
CN110904551A (zh) * 2019-12-10 2020-03-24 江苏兴达钢帘线股份有限公司 一种1+n+n+n结构钢帘线
EP4116111A1 (fr) * 2021-07-09 2023-01-11 Kumho Tire Co., Inc. Pneumatique
FR3160047A1 (fr) * 2024-03-07 2025-09-12 Compagnie Generale Des Etablissements Michelin Câble compact à résistance mécanique élevée comprenant des fils fins

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223503A (ja) * 1983-06-01 1984-12-15 Toyo Tire & Rubber Co Ltd 空気タイヤ
JPH09143890A (ja) * 1995-11-17 1997-06-03 Bridgestone Metalpha Kk タイヤ補強用スチ−ルコ−ド及びそれを用いた空気入りタイヤ
JP2008260409A (ja) * 2007-04-12 2008-10-30 Toyo Tire & Rubber Co Ltd 大型車両用空気入りラジアルタイヤ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5806296A (en) * 1995-05-26 1998-09-15 Bridgestone Metalpha Corporation Corrosion resistant spiral steel filament and steel cord made therefrom
CN102292223B (zh) * 2009-02-03 2014-05-07 横滨橡胶株式会社 乘用车用充气轮胎以及乘用车用充气轮胎的制造方法
CN102812177B (zh) * 2010-03-23 2016-06-08 贝卡尔特公司 具有预成型钢丝的敞开式越野轮胎钢绳
EP2653608B1 (fr) * 2010-12-16 2017-05-10 Bridgestone Corporation Câblé en acier pour renforcer un article en caoutchouc, et pneu l'utilisant
CN204939989U (zh) * 2015-06-02 2016-01-06 贝卡尔特公司 用于加强充气轮胎的钢丝帘线

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223503A (ja) * 1983-06-01 1984-12-15 Toyo Tire & Rubber Co Ltd 空気タイヤ
JPH09143890A (ja) * 1995-11-17 1997-06-03 Bridgestone Metalpha Kk タイヤ補強用スチ−ルコ−ド及びそれを用いた空気入りタイヤ
JP2008260409A (ja) * 2007-04-12 2008-10-30 Toyo Tire & Rubber Co Ltd 大型車両用空気入りラジアルタイヤ

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019243688A1 (fr) * 2018-06-20 2019-12-26 Compagnie Generale Des Etablissements Michelin Câble multi-torons à deux couches à pénétrabilité améliorée
WO2019243687A1 (fr) * 2018-06-20 2019-12-26 Compagnie Generale Des Etablissements Michelin Câble multi-torons à deux couches à pénétrabilité améliorée
AU2019291190B2 (en) * 2018-06-20 2025-05-15 Compagnie Generale Des Etablissements Michelin Double-layer multi-strand cord with improved penetrability
AU2019291191B2 (en) * 2018-06-20 2025-05-22 Compagnie Generale Des Etablissements Michelin Double-layer multi-strand cord with improved penetrability
CN110904551A (zh) * 2019-12-10 2020-03-24 江苏兴达钢帘线股份有限公司 一种1+n+n+n结构钢帘线
EP4116111A1 (fr) * 2021-07-09 2023-01-11 Kumho Tire Co., Inc. Pneumatique
FR3160047A1 (fr) * 2024-03-07 2025-09-12 Compagnie Generale Des Etablissements Michelin Câble compact à résistance mécanique élevée comprenant des fils fins
WO2025185955A1 (fr) 2024-03-07 2025-09-12 Compagnie Generale Des Etablissements Michelin Câble compact à résistance mécanique élevée comprenant des fils fins

Also Published As

Publication number Publication date
CN105648810A (zh) 2016-06-08

Similar Documents

Publication Publication Date Title
JP5918747B2 (ja) 予成形されたフィラメントを有するオープンオフロードコード
WO2012055677A2 (fr) Cordon en acier semi-calmé
EP2475818A1 (fr) Câble d'acier ovale constitué de fils ovales
US11286587B2 (en) Steel cord
WO2015193099A1 (fr) Câble en acier 4+9+14
WO2015169521A1 (fr) Câble en acier avec torsions résiduelles réduites
US12296631B2 (en) Steel cord for rubber reinforcement
JP7290640B2 (ja) ゴム補強用スチールコード
JP6352668B2 (ja) ゴム物品補強用スチールコード
CN102812177B (zh) 具有预成型钢丝的敞开式越野轮胎钢绳
CN204939989U (zh) 用于加强充气轮胎的钢丝帘线
KR20230121878A (ko) 고무 보강용 스틸 코드
CN208933725U (zh) 一种防断裂航空绳
CN211471933U (zh) 一种用于橡胶增强的钢帘线和轮胎
WO2024207219A1 (fr) Câble d'acier à allongement élevé pour renforcement de caoutchouc
EA040546B1 (ru) Стальной корд для армирования резины

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15727372

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15727372

Country of ref document: EP

Kind code of ref document: A1