40results about "Formation of corrugations on cables/conductors" patented technology

The present invention is an implantable cable and a process to manufacture said implantable cable. The cable is composed of a biocompatible fluoropolymer, in which biocompatible conductor wires are embedded. The entire cable is heat treated at various stages to ensure the wires are securely embedded. The cable is then undulated to enhance its pliability and flexibility. Further treatment activates the outer surface of the cable, following which it may be encapsulated in silicone.

The present invention relates to the technical field of wires and cables and particularly relates to a method for making a tinned copper clad aluminum wire. The method comprises the steps of (1) making a rare earth aluminum alloy aluminum rod, melting 99.95% fine aluminum through a double-frequency furnace, adding a rare earth alloy component, and carrying out pulling to form an aluminum rod with the diameter of 8.6mm, (2) carrying out copper belt cladding, cladding the aluminum rod with the diameter of 8.6mm by a high pure copper belt with the corresponding thickness and width in the step (1) through a cladding machine, overmoding and pulling the cladded aluminum rod through a pulling machine to the diameter of 2.05mm, (3) carrying out drawing and tinning, carrying out middle pulling firstly, finally carrying out annealing tinning, and carrying out hot-dip type overmode tinning with the accuracy requirement of +/-0.001 of a tinning mold. The method has the advantage of simple structure, copper and aluminum composite and rare earth aluminum alloy materials are employed, the advantages of the high conductivity of copper and the small density of aluminum are fully played, and the purpose of replacing a pure copper wire is achieved.

A helical corrugated coaxial cable possesses low cost of manufacture comparable to that of braided shield coaxial cable, electrical performance comparable to solid tubular shielded cable, flexibility of helical and annular corrugated cable, and fluid blockage comparable to annular shielded cable. The cable has an inner conductor surrounded by a foam dielectric insulator. A tubular shield surrounds the dielectric and has helical corrugations penetrating into and compressing the foam dielectric to effectively suppress the formation of fluid migration air gaps or passageways between the shield and the dielectric. The shield is preferably composed of aluminum or aluminum alloy. Alternatively, the shield may be annularly corrugated for improved water blocking performance. The manufacturing process employs high speed welding and multi-lead corrugating operations to reduce cost.

An anisotropic conductive film is obtained by dispersing conductive particles in an insulating adhesive composition including a (meth)acrylate-based monomer composition, a radical polymerization initiator, and a film-forming resin. The (meth)acrylate-based monomer composition includes a (meth)acrylate-based monomer which has a cyclic ester residue or a cyclic amide residue represented by the formula (1):

R1 is a hydrogen atom or a methyl group; R2 is an alkylene group or an alkyloxy group; R3 is an alkyl group, an alkylene group, an aryl group, or a halogen atom; n is an integer of 0 to 3; R4 is absent or an alkylene, dotted lines on both sides of R4 jointly represent a single bond; X1 is absent, or an oxygen atom or a carbon atom; and X2 is an oxygen atom, a nitrogen atom, or a sulfur atom.

There is provided a method for producing a substrate suitable for supporting an elongated superconducting element, wherein one or more elongated strips of masking material are placed on a solid element (202) so as to form one or more exposed elongated areas being delimited on one or two sides by elongated strip of masking material, and placing filling material on the solid element so that each exposed elongated area within the one or more exposed elongated areas is covered by a portion of filling material (318a-c) where each portion of filling material also covers at least a portion of the adjacent elongated strip of masking material and subsequently removing the one or more elongated strips of masking material so as to form one or more corresponding undercut volumes, where each undercut volume within the one or more undercut volumes is formed along a portion of filling material and between the portion of filling material and the solid element. The method may further comprise placing buffer material (640) and or superconducting material (642, 644, 646)) on the substrate, so as to provide a superconducting structure (601) with reduced AC losses.

The invention provides a surface roughing method and device of a wire cable. The surface roughing device comprises an air pressure-limitation device, an air cooling device and an air blowing device, wherein the air blowing device comprises an air blowing device main body and a convex nozzle die, wherein the air pressure-limitation device is used for receiving a high-pressure gas, stabilizing the pressure of the high-pressure gas and transmitting the gas to the air cooling device via an air pipe, the air cooling device is used for controlling the received high-pressure gas to generate eddy, separating a cold gas and a hot gas and transmitting the cold gas to the air blowing device main body via the air pipe, and the air blowing device main body is used for transmitting the cold gas to a groove adaptive to a convex nozzle die structure and uniformly dispersing the cold gas on a surface of the wire cable by a funnel-shaped structure arranged at the convex nozzle die. The surface roughingdevice has the beneficial effects that a chemical reagent is not needed, the surface of the wire cable is roughed by rapidly reducing a temperature of a local environment, and the problem that a conventional surface-roughed wire cable is inconvenient to produce is solved.

The invention discloses a manufacturing process of an embedded metal strip type cable. The process comprises the following steps of: uniformly coating a rubber layer on a bearing cable to form the cable; the released cable entering a rolling groove device; four high-temperature rolling wheel mechanisms are obliquely arranged in the rolling groove device; through uniform linear motion of the cableand revolution motion of the two groups of rolling wheel mechanisms; Two groups of spiral grooves are processed on the cable, when the metal clamping groove strip is close to the spiral groove on thecable, the metal clamping groove strip and the bottom surface of the spiral groove are coated with adhesive by the adhesive coating device and the adhesive coating device, and the adhesive is quicklydried by the cable embedded with the metal clamping groove strip through the drying device. According to the manufacturing process, the spiral guide rail groove and the spiral groove can be automatically formed in the outer surface of the cable sleeve in a rolling mode, the metal clamping groove strip is automatically glued and embedded into the spiral groove, labor is saved, and production efficiency is improved.

The invention discloses a low wind pressure wire and a method for forming a spline curve in the low wind pressure wire. The outer conductor layer and the aluminum wire layer arranged outside the outer conductor layer, the surface structure of the aluminum wire layer is a spline curve with the same local structure form in multiple sections, and the shape of each spline curve is determined by the highest points at both ends of the spline curve. It is determined by the distance between the two control points and the point on the bisector of the angle of the two control points to the outer diameter of the wire. The invention changes the structure of the outermost aluminum wire of the wire, and changes the traditional round wire and fan-shaped structure into a curved structure, so that the surface of the wire has a certain roughness, thereby reducing the wind pressure; the structure of the wire is single, which not only makes the wire The mold produced is single, and there will be no confusion during stranding production, which is convenient for processing and production.

The invention relates to a die cutting device for conductive cloth indentation lines. The die cutting device is used for carrying out die cutting on indentation lines on a conductive cloth material strip, and comprises an upper die base and a lower die base which is arranged below the upper die base and matched with the upper die base. The lower surface of the upper die base is provided with an indentation line cutter, and the lower die base is provided with a silicone pad matched with the indentation line cutter and a material blocking mechanism matched with the conductive cloth material strip. Compared with the prior art, through arranging the silicone pad on the lower die base, the conductive cloth material strip and the indentation line cutter are supported flexibly from below, the indentation line cutter is ensured to be capable of being pressed into the conductive cloth material strip completely, so that the depth of the indentation lines is obvious, the compactness is good, therebound speed is slow, the imprint is not prone to recede and disappear, the retention is good, and the conductive cloth material strip can be effectively prevented from being lifted by the indentation line die cutter, thereby ensuring the normal proceeding of the continuous die cutting process.

A method for continuously producing a coaxial cable (224) having a thin-walled, radially closed non-ferrous metal outer conductor includes supplying a flat strip of non-ferrous metal to a forming apparatus (212), where a thickness of the strip corresponds to a wall thickness of the coaxial cable. The forming apparatus is configured to continuously form the supplied flat strip into a form corresponding to the outer conductor of the coaxial cable and around the cable core supplied before the outer conductor is closed. After shaping, the two opposite edges of the flat strip lie flush with each other in the contact region and are continuously welded to each other by means of a laser which emits light having a wavelength of less than 600 nm by means of a welding device (216). The laser heats a point in the welding region having a diameter less than 20% of the cross-sectional dimension of the coaxial cable. The welded coaxial cable is withdrawn from the welding region and received in a receiving device (226) after introduction of the parallel or helical corrugations.

The invention discloses a novel outer conductor embossing mould of a super-flexible 1/2 feeder line cable, and a method thereof, and relates to the field of cable embossing moulds. The novel outer conductor embossing mould comprises an embossing head which rotates concentrically, wherein an embossing ring is arranged in the embossing head; and the center line of the embossing ring and the center line of the embossing head are not the same line. The embossing method comprises the following steps that the embossing ring is grinded into a regular annular mould; the embossing ring grinded in the step S1 is installed in the embossing head, wherein the embossing ring can freely move in the embossing head; and a novel outer conductor of the super-flexible 1/2 feeder line cable is pumped into theembossing ring to finish embossing. According to the mould, an inner hole edge of the embossing ring and the center line of the embossing ring are vertically arranged, so that the contact surface of the embossed cutting edge is small in the embossing process, the embossing resistance is much smaller than that in the prior art, the regular embossing textures can be formed smoothly even if in conditions of a relatively thick or hard copper tube, or a relatively thin or soft copper tube, and the embossing textures can be formed easily.

The invention provides an electric wire embossing device comprising a frame. An upper roller and a lower roller are symmetrically arranged on the upper and lower sides of the middle of the frame. A rotating gear is connected on the front end of the upper roller and the lower roller. A drive motor is arranged on the front side of the frame. A linkage gear is connected on the output end of that drive motor. The linkage gear is connected between the upper and lower rotating gears in a meshed way. The surface of the upper rotating roller and the lower rotating roller are provided with a reticulated knurling knife. A hot air pipe is arranged above the upper rotating roller and below the lower rotating roller. The two sides of the hot air pipe are provided with baffles which are respectively attached to the two sides of the upper rotating roller and the two sides of the lower rotating roller. The right side of the frame is provided with a wire inlet base, and the left side of the frame is provided with a wire outlet base. The surface of the upper rotating roller and the lower rotating roller is heated by blowing through the hot air pipes. The drive motor drives the upper rotating rollerand the lower rotating roller to rotate in opposite directions through the linkage gear and the rotating gear, and the reticulated knurling knife on the surface of the upper rotating roller and the lower rotating roller performs embossing on the surface of the electric wire so that the transmission slip of the electric wire can be reduced and the production efficiency can be enhanced.

A coaxial cable includes: a center conductor; a dielectric layer circumferentially surrounding the center conductor; and an outer conductor circumferentially surrounding the dielectric layer. The dielectric layer comprises an inner sleeve that circumferentially overlies the center conductor and an outer sleeve that circumferentially overlies the inner conductor. The outer sleeve contacts the innersleeve to form a plurality of longitudinally-spaced seams to create a plurality of sealed segments along a longitudinal axis of the cable.