Abstract:
A compact metal cable having two layers (C1, C2) of construction 1+N, rubberized in situ, usable in particular as a reinforcing element for a tire belt for a heavy industrial vehicle, comprising a core or inner layer (C1) comprising a single core wire of diameter d1, and a saturated outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2 around the layer C1. The layered cable has the following characteristics (d1, d2, p2 in mm): 0.15
Abstract:
A tire having a radial carcass reinforcement, comprised of at least one layer of metal reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are non-hooped cords having, in the permeability test, a flow rate of less than 20 cm3/min and at least one layer of the carcass reinforcement being provided on at least one side with at least one layer of textile threads of straight orientation and said textile threads forming an angle with the direction of the metal reinforcing elements of said at least one carcass reinforcement layer of more than 10°.
Abstract:
Provided is a method for the highly efficient formation of a uniform, high-quality film with which increased line speed, improved productivity, and cost reduction can be envisaged. A method for forming a rustproof film on a PC strand, wherein a PC stranded (1) is untwisted to separate surrounding wires (1b) from a core wire (1a), a synthetic resin powdered coating material is uniformly adhered by being applied and heated over the outer periphery of the core wire and surrounding wires in this untwisted state, the product is cooled to form a resin film (26), and then the surrounding wires are twisted back to the original state with respect to the core wire. Pre-heating is performed before the coating step and post-heating is performed after the coating step, the pre-heating temperature is set 30 to 130° C. higher than the post-heating temperature, a synthetic resin powdered coating material having an average grain size of 40 to 50 μm is used, and the process line speed is 5 to 10 m/min.
Abstract:
The present invention is related a steel cord (500, 600) comprising one or more strands (504, 602), said strands comprising at least two filaments, wherein the void spaces between at least two filaments of at least one of said one or more strands are at least partially filled with a composition comprising a thermosetting material (506, 606), characterized in that the thermosetting material (506, 606) is a heat-curable one-component thermosetting material. Further, the invention relates to a steel cord (100, 200, 300) comprising at least two strands (102, 104, 202, 204, 302, 304), said strands comprising at least two filaments, wherein the void spaces (105, 205, 305) between at least two strands are at least partially filled with a composition comprising a thermosetting material (106, 206, 306), characterized in that the thermosetting material (106, 206, 306) is a heat-curable one-component thermosetting material.
Abstract:
An annular metal cord includes an annular core portion formed in an annular shape, and an outer layer portion spirally wound around the annular core portion while running over an annular circumference thereof plural times and covering an outer peripheral surface of the annular core portion. Each of the annular core portion and the outer layer portion are formed by a strand material which is formed by intertwisting a plurality of metal filaments. The annular core portion and the outer layer portion are formed by a continuous strand material.
Abstract:
The object of this invention is to provide a steel cord, which has ultrafine steel filaments with a diameter of 0.04-0.14 mm stranded with each other so as to reinforce a tire carcass, and a radial tire for a passenger car using the same. The steel cord includes one core filament with a diameter of 0.04-0.14 mm and 4-7 sheath filaments, each having a diameter of 0.04-0.14 mm, spirally stranded around the core filament. At this time, the steel cord has a diameter of 0.2-0.5 mm and shear strength of 25-35 kgf. Additionally, each of the sheath filaments has a smaller diameter than the core filament, and the core filament and the sheath filaments are made of the steel filaments. The radial tire includes the tire carcass provided with the steel cord and a topping sheet, and the steel cord is embedded in the topping sheet such that a rubber gauge ratio is 200-500 % and a rubber clearance ratio is 60-250 %. The steel cord has improved physical properties, such as shear strength and durability, to reduce a thickness of a carcass including the steel cord, leading to the reduction of a weight of the radial tire. Furthermore, controlling stability and durability of the radial tire are improved, thereby reducing costs of maintenance of the passenger car.
Abstract:
A bead cord which is lightweight and inexpensive, high in formability, and includes an annular core that is high in corrosion resistance. The bead cord which is lightweight and inexpensive and high in formability includes an annular core 1 and a wrap wire 2 helically wrapped around the annular core 1, the annular core 1 being made of a medium carbon steel or an alloy steel having a lower C content and containing specific elements in suitable amounts, and having a diameter dC that satisfies the following relation 1.04≦dC/dS≦1.30 with respect to the diameter dS of the wrap wire 2, the wrap wire 2 having a coil diameter DS which is 0.5 to 1.3 times the coil diameter DC of the annular core 1. In order to improve the corrosion resistance of the annular core 1, the annular core 1 may be formed with a plating layer 4 of an Al—Zn alloy or a thick plating layer 4 of Zn, or the annular core 1 may be made of stainless steel.
Abstract translation:一种重量轻且成本低,成形性高的胎圈帘线,包括耐腐蚀性高的环形芯。 重量轻且成本高的胎圈帘线包括环形芯1和螺旋缠绕在环形芯1周围的缠绕线2,环形芯1由中碳钢或具有较低C含量的合金钢制成 并且含有适当量的特定元素,并且具有满足以下关系的直径d C C 1 / D 2 / 相对于包裹线2的直径d 3 S <1.30,缠绕线2的线圈直径D 为线圈直径D C sub>。为了提高环形铁心1的耐腐蚀性,环形铁芯1可以形成有具有Al-Zn合金或镀层4的镀层4 Zn或环形芯1可以由不锈钢制成。
Abstract:
A pneumatic tire comprises a cord-reinforced layer such as carcass, belt, bead reinforcing layer which is made of metallic cords, each metallic cord is made up of six to twelve metallic filaments whose diameter is in a range of from 0.15 to 0.45 mm, the metallic filaments include waved filaments and unwaved filaments, each waved filament is two-dimensionally waved at a wave pitch and wave height before twisted, the wave pitch is in a range of from 5.0 to 35.0 times the diameter of the filament, and the wave height is in a range of from 0.2 to 4.0 times the diameter of the filament, and the metallic filaments are twisted together into the cord at a twist pitch of from 10 to 40 mm so that the two-dimensionally waved filaments are each subjected to a certain rotation around its axial.
Abstract:
A multi-layer cable having an unsaturated outer layer, comprising a core (C0) of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (M=6 or 7) of diameter d1 wound together in a helix at a pitch p1, surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable has the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.14
Abstract:
A highly flexible radiopaque cable includes two, and preferably three or more strands of nickel-titanium (NiTi) alloy wire which are twined about a higher density core wire preferably made of at least one of silver, gold, tungsten, or platinum-iridium to form a wire rope. Other high density core wires may be used. The wire rope is drawn through successive dies to reduce its diameter until the outer surface of the cable is substantially smooth, the cross section of the cable is substantially circular, and the overall diameter of the wire rope is reduced by 20-50%. The cable is then annealed to remove the effects of cold working. The resulting cable has been found to have a substantially equal or improved flexibility (i.e., a lower modulus of elasticity) relative to single strand nickel-titanium wires of the same diameter and a higher radiopacity. In an alternative embodiment, no core wire is utilized, and the higher density wire is drawn with two or more strands of NiTi wire. In another embodiment, the higher density wire is radioactive.