The present invention relates to a high-pressure gas storage container and a method for manufacturing the high-pressure gas storage container. The high-pressure gas storage container of the present invention comprises: a liner having a storage space therein; and a composite material layer coupled to the liner, wherein the composite material layer comprises a resin, fibers, and steel wires, and the method for manufacturing the high-pressure gas storage container, according to the present invention, comprises: a resin impregnation step of impregnating a plurality of fibers with a resin; a fiber supply step of supplying the plurality of fibers to a traverse device; a steel wire supply step of supplying a plurality of steel wires to the traverse device; an arrangement step of arranging, through an arrangement unit, the plurality of steel wires on the plurality of fibers impregnated with the resin and contacting each other; and a coupling step of coupling the composite material layer to the liner by winding the plurality of fibers and the plurality of steel wires around the liner.
F17C 1/06 - Protecting sheatings built-up from wound-on bands or filamentary material, e.g. wires
B29B 15/12 - Coating or impregnating of reinforcements of indefinite length
B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
B29C 53/58 - Winding and joining, e.g. winding spirally helically
The present invention relates to a steel cord for reinforcing tire belt plies, comprising a cord formed by periodically twisting n wires, wherein: the n wires are compressed by rolling, the wires are compressed by rolling such that at least one of the n wires is compressed into a non-circular shape; and if n is an odd number, the cross-section of one wire from among the n wires becomes circular and the cross-section of n-1 wires becomes non-circular by rolling, and if n is an even number, the cross-section of two wires from among the n wires becomes circular and the cross-section of n-2 wires becomes non-circular by rolling.
The present invention relates to a steel wire having an excellent straightness quality and a method for manufacturing same. The steel wire having an excellent straightness quality comprises a wire which goes through, after going through a wire drawing step, a heating step in which the wire is heated in a state where tension is applied thereto, and then goes through a cooling step, wherein when the wire is wound around a winding part having a diameter larger than the diameter of the wire during a predetermined period and then the linearity of the wire configured to have length of 400 mm is measured, the linearity of the wire is 30 mm or less. A method for manufacturing a steel wire having an excellent straightness quality comprises a wire preparing step, a heating step, a cooling step, and a linearity measuring step.
22/AI ternary eutectic structure, a Zn single-phase structure, and an Fe-Zn-AI-based crystal structure, wherein the Fe-Zn-AI-based crystal structure is formed adjacent to the base steel wire, and can have an average thickness of 1/5 to 1/2 with respect to an average thickness of the zinc alloy plated layer.
The present invention relates to an electroplated bead wire having excellent oxidation resistance, of which the oxidation resistance and the aging adhesive strength with tire rubber are enhanced by formation of a copper- and cobalt-plated layer in an electroplating manner. The electroplated bead wire comprises the plated layer formed through electroplating, wherein the plated layer contains 40-99 wt% of copper and 1-40 wt% of cobalt.
The present invention relates to a high-strength bead wire, and a manufacturing method therefor. The high-strength bead wire preparation method comprises: a step of preparing a wire rod comprising 0.86-1.02 wt% of carbon; a film coating step of coating a phosphate film of 5-10 g/m2on the surface of the wire rod; and a drawing step of drawing the wire rod on which the phosphate film is coated, wherein: the wire rod is drawn in the drawing step by a drawing apparatus, which comprises a drawing dice capable of drawing the wire rod and a pressure dice provided in front of the drawing dice and capable of applying pressure to the wire rod; the pressure dice is formed so as to have a diameter 1.05-1.2 times the diameter of the drawing dice; and the high-strength bead wire comprises a wire rod comprising 0.86-1.02 wt% of carbon and a phosphate film of 5-10 g/m2 coated on the surface of the wire rod, and is manufactured by the manufactured method.
B21C 1/16 - Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
B29D 30/48 - Bead-rings or bead-cores; Treatment thereof prior to building the tyre
B05D 5/00 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
C10M 105/74 - Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing phosphorus
7.
STEEL CORD AND SINGLE STEEL WIRE HAVING EXCELLENT STRAIGHTNESS QUALITY FOR REINFORCING TIRE AND MANUFACTURING METHOD THEREOF
The present invention relates to a steel cord and a single steel wire having excellent straightness quality for reinforcing a tire and a method for manufacturing the same. The steel cord and the single steel wire having excellent straightness quality for reinforcing a tire comprise: a wire which undergoes a heating step which is heated in a tensioned state after a wire drawing step, and which undergoes a cooling step; and a winding part having a diameter larger than the diameter of the wire and on which the wire is wound, wherein when one end of the wire, wound on the winding part for 6 months to one year, is fixed to one point and the wire is vertically lowered by 400 mm, it is preferable that a distance between a first axis which forms a line perpendicular to the one point and the other end of the wire is 30 mm or less, and wherein a method for manufacturing a steel cord and a single steel wire having an excellent straightness quality for reinforcing a tire comprises: a wire preparing step; a heating step; a cooling step; and a winding step.
A crimped saw wire with a flat shape includes, when a section of the crimped saw wire, which is cut in a direction perpendicular to a length direction of the crimped saw wire, is seen from the length direction of the crimped saw wire: a major axis portion, facing surfaces of which are in parallel to each other, when a circular section is pressurized at both sides thereof; and a minor axis portion protruding in a round shape from both ends of the major axis portion.
H01L 21/78 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
H01L 23/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor or other solid state devices
B23D 61/18 - Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
B23D 57/00 - Sawing machines or sawing devices not covered by one of groups
9.
BEAD WIRE HAVING SUPERIOR ADHESION AND METHOD FOR PRODUCING SAME
The present invention relates to a bead wire which is used for reinforcement of vehicle tires, and a method for producing the same. According to the present invention, through a process by which fine unevenness may be formed on the surface of a wire using electrolytic acid-treatment which allows a drawn wire to pass through an electrolytic bath in which an acid solution is received, and through a chemical displacement plating process by which a plating bath, which contains only one or a compound of two among cobalt, nickel, and manganese, passes through a copper-tin plating solution, a bead wire having superior adhesion is produced, wherein the bead wire has a plating layer formed thereon, the playing layer having a surface roughness of 0.01 to 1.50 µm and comprising: 97 to 99.99 % by weight of copper-tin (Cu-Sn), which consists of 75 to 99.99 % by weight of copper and 0.01 to 25 % by weight of tin; and 0.01 to 3.0% by weight of one or two components from among cobalt (Co), nickel (Ni) and manganese (Mn).
The present invention relates to a method for manufacturing a zinc-copper plated steel wire for a spring, wherein the steel wire has excellent drawability and formability. A method for manufacturing a steel wire for a spring according to the present invention comprises: a first dry drawing step for drawing a wire rod material to a wire diameter of 2.0-4.0 mm; a second dry drawing step for heat treating and then dry drawing the first dry drawn steel wire to a wire diameter of 1.5-3.5 mm; a zinc-copper plating layer forming step for sequentially forming zinc and copper plating layers on the surface of the steel wire such that the total thickness of the zinc and copper plating layers is 2.0-4.0 μm; and a third dry drawing step so that the final wire diameter is 0.5-3.0 mm and the zinc-copper plating layer thickness is 0.2-2.0 μm.
B21C 1/00 - Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
C23C 2/04 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
The present invention relates to a brass-plated steel wire for a gold-plated spring, which is a steel wire used as a material of a gold-plated spring, characterized in that a brass plating layer, which has a zinc content of 30-45% and a copper content of 55-70%, is formed on the surface of the steel wire at a thickness of 0.5-2.0μm, and the density of Fe, among the components of the brass plating layer, is 4% or less. A method for manufacturing a brass-plated steel wire for a gold-plated spring according to the present invention comprises the steps of: primarily dry-drawing a material wire rod such that the same has a diameter of 2.0-4.0mm; heat-treating the primarily drawn steel wire and then secondarily dry-drawing the same such that the same has a diameter of 0.5-1.5mm; successively forming a copper plating layer and a zinc plating layer on the surface of the secondarily drawn steel wire such that the copper content becomes 55-70% and the zinc content becomes 30-45% and then forming a brass plating layer of 2.0-4.0μm through thermal diffusion; and tertiarily drawing the same such that the final wire diameter becomes 0.01-1.0mm and the brass plating layer has a thickness of 0.5-2.0μm.
Provided are a cable bead manufactured using single welding and a method of manufacturing the cable bead. The method comprising manufacturing a core wire and stranding a twist cable by twisting a layer wire around an outer circumferential surface of the core wire; butt-welding both end portions of the twist cable; primarily and secondarily heat-treating the butt-welded twist cable; and grinding or cutting a butt-welded portion such that a diameter of the welded portion is greater than about 100% of and less than about 110% of a diameter of the twist cable.
The present invention provides a saw wire having asymmetrical crimps. The saw wire comprises an asymmetrical unit crimp that is continuously formed in a zigzag shape, wherein the asymmetrical unit crimp comprises a first portion and a second portion that is bent and extended from the first portion and is longer than the first portion, and a length ratio of the first portion to the second portion is from 1:1.2 to 1:4.
B23D 61/18 - Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
B28D 1/08 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw blades of endless cutter-type, e.g. chain saws, strap saws
14.
STRUCTURED SAW WIRE MAINTAINING CRIMP PROPERTY UNDER SLICING TENSION
The present invention provides a structured saw wire maintaining a crimp property under slicing tension. The structured saw wire maintaining a crimp property under slicing tension comprises a unit crimp that is continuously formed in a zigzag shape, wherein the unit crimp comprises a first portion and a second portion which is bent and extended from the first portion such that an imaginary circle adjoining edges formed by the first portion and the second portion has a radius or a radius of curvature that is from 5 to 20 times a cross-sectional diameter d of the structured saw wire.
B23D 61/18 - Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
B28D 1/08 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw blades of endless cutter-type, e.g. chain saws, strap saws
B24D 11/00 - Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
A steel cord for tire reinforcement according to the present invention is elongated in one direction and comprises a plurality of strands twisted periodically on one another, and the steel cord for tire reinforcement is characterized in that the steel cord is formed to have a first waveform having a first waveform surface and a second waveform having a second waveform surface, the first and second waveforms are formed to overlap each other, and a predetermined inclined angle is defined between the normal of the first waveform surface of the first waveform and the normal of the second waveform surface of the second waveform.
patents
