452results about "Manufacturing co-axial cables" patented technology

A coaxial cable connector for coupling an end of a coaxial cable to a terminal is disclosed. The connector has a coupler adapted to couple the connector to a terminal, a body assembled with the coupler and a post assembled with the coupler and the body. The post is adapted to receive an end of a coaxial cable. The coupler, the body or the post has an integral, monolithic contacting portion. When the connector is coupled to the terminal and a coaxial cable is received by the body, the contacting portion provides for electrical continuity from an outer conductor of the coaxial cable through the connector to the terminal other than by a separate component. The contacting portion is formable and forms to a contour of at least one of the body and the coupler when the body at least partially assembles with the coupler.

A method of making a coaxial cable includes forming a conductive tube and setting a settable material therein to define an inner conductor. Forming may include advancing a conductive strip and bending it into a tube having a longitudinal seam. The settable material may be dispensed onto the conductive strip continuously with the forming. Alternately, the settable material may be dispensed onto the conductive strip prior to advancing. The dispensing may use a puller cord as the settable material or carrying some or all of the settable material. The method may further include forming a dielectric layer surrounding the inner conductor, and forming an outer conductor surrounding the dielectric layer.

The object of the invention is to provide an extra-fine copper alloy wire, an extra-fine copper alloy twisted wire, an extra-fine insulated wire, a coaxial cable having high intensity, low resistance and high heat tolerance, their manufacturing method and a multicore cable thereof. The extra-fine copper alloy wire has 1 to 3 weight % of silver in the copper, a wire diameter less than 0.025 mm, and a tensile strength of more than 850 MPa, an electrical conductivity of more than 85% IACS after heat treatment; the coaxial cable (20A) is configured that, an inner conductor is formed by an extra-fine copper alloy twisted wire (3) twisted from seven extra-fine copper alloy wires (1), the inner conductor is then peripherally envelopped with a solid insulator (5a) to form an extra-fine insulated wire (10), a plurality of conductor wires (13) are winding in a screw shape on the periphery of the extra-fine insulated wire along a length direction of the extra-fine insulated wire to form an outer conductor (15), thereafter, the outer conductor is envenlopped with a protection layer (17).

The invention relates to a method for preparing a tin dioxide and titanium dioxide nano cable, which belongs to the technical field of nano material preparation. The method comprises the following three steps of: (1) preparation of spinning solution, adding stannic chloride and polyvinylpyrrolidone (PVP) into a mixed solvent of N, N-dimethylformamide and glycerin so as to prepare a core layer of the spinning solution, and adding PVP into a mixed liquid of butyl titanate and absolute ethyl alcohol so as to prepare a shell layer of the spinning solution; (2) preparation of (PVP+SnC14) and [PVP+Ti(OC4H9)] composite nano fiber by a coaxial electrostatic spinning technology under the condition that the voltage is 11.5-15 kV, the curing distance is 10-15 cm, the room temperature is 20-25 DEG C and the relative humidity is 45-50 percent; (3) preparation of SnO2 an TiO2 nano cable: carrying out heat treatment on the composite nano fiber to obtain the cable with cable diameter of 300-340 nm, core layer diameter of 200-220 nm, the shell layer thickness of 50-60 nm and length of more than 300 mu m.

A method is described for making a composite laminate formed by curing a stacked structure comprising at least two layers of strips of fibrous material impregnated with resin, wherein the strips in adjacent layers have different directional orientations. An apparatus is provided for simultaneously separating a band of fibrous material impregnated with resin into strips and depositing the strips between adjacent pin rows of a pinmat to form the stacked structure.

The invention relates to equipment for producing cables and wires, in particular to a winding machine for winding and belting during ultra-thin coaxial cable production. The horizontal winding machine comprises a backtwist unwinding machine (1), a tessellation line unwinding machine (2), an incoming line division board (3), a die hole (4), a conductor belting device (5), an insulation belting device (6), a leading machine (9) and a recoiling machine (10) which are arranged sequentially in the horizontal direction; the central lines of the backtwist unwinding machine (1), the tessellation line unwinding machine (2), the incoming line division board (3), the die hole (4), the conductor belting device (5), the insulation belting device (6), the leading machine (9) and the recoiling machine (10) are positioned on the same horizontal line; a first belt uncoiling device (7) is arranged below the conductor belting device (5); and a second belt uncoiling device (8) is arranged below the insulation belting device (6). The horizontal winding machine has the advantages of stably unwinding tessellation lines, finishing two working procedures of slantways belting and winding simultaneously, along with convenient operation, adjustable winding distance and high production efficiency.

A coaxial cable (10) includes at least one conducting wire (110), at least one insulating layer (120) coating a respective conducting wire (110), at least one shielding layer (130) surrounding the at least one insulating layer (120), and a single sheath (140) wrapping the at least one shielding layer (130). The shielding layer (130) is a carbon nanotube film.

The invention relates to a broadband radial pattern leaky coaxial cable used for subway and a manufacturing method thereof, and the leaky coaxial cable has the double functions of transmission line of information and duplexer. The structure of the leaky coaxial cable consists of an inner conductor, an insulation layer, an outer conductor and a jacket, wherein, the inner conductor is externally covered with the insulation layer which is externally covered with the outer conductor that is externally sheathed with the jacket, and the insulation layer that covers on the surface of the inner conductor adopts nitrogen or carbon dioxide physical foam to form a foamed polyethylene insulation layer; cambered slotted holes are opened on a clutch gold belt of the outer conductor covered outside the insulation layer. The manufacturing method comprises the steps: (1) a spiral wrinkle inner conductor is manufactured by longitudinal covering welding and embossing by using a copper strip; (2) the nitrogen or the carbon dioxide are adopted to be injected into the smelted polyvinyl plastics, and then the physical foamed polyethylene insulation layer is formed on the surface of the inner conductor by extrusion and cladding; (3) the slotted holes broken out by the clutch gold belt of the outer conductor are the cambered slotted holes; (4) the clutch gold belt of the outer conductor is covered on the insulation layer longitudinally, and the surface of the clutch gold belt of the outer conductor is crowded and covered with the jacket.

The invention relates to a double-shielded mineral-insulated cable which is mainly applied to the fields of high-frequency signal transmission in occasions with high ambient temperature and high radiation, such as the communication fields of metallurgy, medical treatment, aerospace, military and the like. The double-shielded mineral-insulated cable comprises an inner conductor, an insulating medium, an outer conductor, an insulating medium and a protective sleeve in sequence from inside to outside, and is characterized in that the insulating medium is magnesium oxide, aluminum oxide or silicondioxide. Compared with the existing double-shielded cable, the double-shielded mineral-insulated cable has the advantages of longer service life and wider use range; in addition, the double-shieldedmineral-insulated cable has excellent performance, has little interference to transmitted signals and can be used for the communication fields of metallurgy, medical treatment, aerospace, military andthe like.

A process and an apparatus for high speed manufacture of a composite sheet material, which includes a cylindrical cam-driven strand-traverse guide that can loop strands around pins projecting from a pair of advancing pin conveyors which can transfer the strands to the surface of a moving sheet, are provided. When the strands are elastic, the elastic composite sheet material made by this process and apparatus are useful in elastic components of disposable diapers, adult incontinence articles and other garments.

The invention provides an insulated wire having a conductor and an insulator of paste extruded PTFE fine powder around the conductor. The paste extruded insulator has at least one closed continuous longitudinal air channel spaced apart from the conductor. The invention further provides a process for forming an insulator around a conductor by paste extruding lubricated PTFE fine powder in an extrusion device comprising a die, mandrel, and at least one channel-forming member. The die and mandrel form a converging chamber leading to an extrusion orifice and the channel-forming member is positioned in the orifice. The mandrel has a central bore for supplying the conductor. Lubricated PTFE fine powder is forced through the chamber and out of the exit of the orifice as a lubricated green extrudate around the conductor forming an insulator with at least one closed longitudinal air channel spaced apart from the conductor.

The invention relates to a three-coaxial mineral insulated cable which is mainly applied to the field of the transmission of a high-frequency signal in an occasion with high environmental temperature and high radiation, such as the communication fields of metallurgy, medical treatment, aerospace, military affairs and the like. The three-coaxial mineral insulated cable comprises an internal conductor layer, an internal insulation dielectric layer, an internal shielding layer, an external insulation dielectric layer, an external shielding layer and a sheath layer sequentially from the inside to the outside. The three-coaxial mineral insulated cable is characterized in that the internal insulation dielectric layer and/or the external insulation dielectric layer are magnesia, alumina or silicon dioxide. Compared with the prior coaxial cable, the three-coaxial mineral insulated cable has the advantages of longer service life and more extensive use range.

A micro coaxial cable includes an inner conductor; an insulation layer having foaming cells and formed to surround the inner conductor; an over-foaming preventing layer formed to surround the insulation layer for the purpose of uniform forming of the foaming cells; a metal shield layer formed to surround the over-foaming preventing layer; and a protective coating layer formed to surround the metal shield layer. The over-foaming preventing layer restrains abnormal growth of foaming cells formed in the insulation layer such that the foaming cells are successively adjacently formed with uniform size. Due to the uniformity of foaming, the dielectric constant of the insulation layer is not locally different but uniform as a whole, thereby capable of improving transmission characteristics. In addition, the micro coaxial cable enables to transmit signals even at a high frequency transmission of GHz range, which was impossible in the prior art.

The invention relates to a manufacturing method of a semi-flexible coaxial cable shielding layer. A semi-flexible coaxial cable comprises an inner conductor, an insulating layer, a shielding layer and a jacket layer, and the semi-flexible coaxial cable shielding layer is manufactured through unidirectionally winding a metal wire on an insulating ore and then carrying out dip soldering. The manufacturing method concretely comprises the following steps of: (1) setting winding parameters of the metal wire; (2) installing a pay-off spool on which the semi-flexible coaxial cable insulating core is wound, and arranging the insulating core; (3) installing a metal wire coil for winding, arranging the metal wire, and winding the metal wire on the insulating core; and (4) fluxing the wound shielding wire coil, drying, carrying out dip soldering, air cooling, and connecting with a second take-up spool assembled on a second take-up stand. The shielding layer is formed by unidirectionally winding the metal wire, the dip soldering is even, uniform and easy, and the tin layer can not fall off due to the relative sliding of interwoven metal wires in bending. The production efficiency is six times higher than the weaving efficiency, and the energy consumption of the manufacturing method only accounts for 1/24 of that of the weaving process. In addition, 100 percent of shielding can be realized.

The invention relates to a method for making a highly foamed carbon dioxide physically foamed RF coaxial cable insulation cable core, in particular to production technology of RF coaxial cable insulation core wire for the third generation data mobile communication 3G. The making method is as follows: (1) the inner conductor of an insulation core wire is subject to strengthening, sizing and ultrasonic cleaning and then is coated with an inner cortex through extrusion by an extruding machine after preheating; (2) foaming material is prepared, and high-density polyethylene, low-density polyethylene and nucleating agent are mixed and melted in to polymer at the high temperature of 180-220 DEG C in the extruding machine; (3) carbon dioxide foaming agent is injected into the melted polymer in the extruding machine by liquid carbon dioxide by virtue of pore gas injection needle high pressure; (4) at high temperature, molten polymer and carbon dioxide foaming agent are mixed uniformly by virtue of revolution of a screw of the extruding machine; (5) the mixture is extruded at the periphery of the inner conductor of the 3G RF coaxial cable by an extruding nose, foamed and made into the foamed insulation cable core; (6) the foamed insulation cable core is made into carbon dioxide physically foamed RF coaxial cable insulation cable core.

The invention relates to a low-loss phase-stable coaxial cable and a manufacture method thereof. The low-loss phase-stable coaxial cable comprises, sequentially arranged from inside to outside, an inner conductor, an intermediate insulation layer, an outer conductor and an outer sheath, wherein the inner conductor includes a base material containing Ag-Cu alloy and an Ag coating layer. In the preferred scheme, the Ag-Cu alloy contains Cu 99% and Ag 1%. The outer conductor includes, sequentially arranged from inside to outside, an alloy strip layer, a metal composite film layer, and an Ag wire braid layer, which are respectively wrapped by an alloy strip, a metal composite film strip and a flat Ag wire braid strip. The intermediate insulation layer is made of a foamed polytetrafluoroethylene material with the dielectric constant of 1.65 to 1.73. The low-loss phase-stable coaxial cable can lower the transmission loss of coaxial cables so as to reduce the signal attenuation in the transmission process, and can improve the mechanical phase stability of the coaxial cables.