44results about "Cable/conductor manufacture" patented technology

A supported graphene device comprises at least one graphene feature of 1 to about 10 graphene layers having a predetermined shape and pattern, with at least a portion of each graphene feature being supported on a substrate. In some embodiments the device comprises graphene features supported on crystalline semiconductor substrate, such as silicon or germanium. The graphene features on a crystalline semiconductor substrate can be fabricated by forming an amorphous carbon doped semiconductor on the crystalline semiconductor substrate and then epitaxially crystallizing the amorphous semiconductor with carbon migration to the surface to form a graphene feature of one or more graphene layers. The epitaxy can be promoted by heating the device or by irradiation with a laser. Methods for fabricating graphene on a variety of substrates, over large areas with controlled thicknesses employ ion implantation or other doping techniques followed by pulsed laser annealing or other annealing techniques that result in solid phase regrowth are presented.

A flat cable conductor has: a conductor made of copper or a copper alloy; a first plating film made of tin and/or a tin-copper alloy, the first plating film being formed around the conductor; and a second plating film made of an alloy of tin and a third element selected from Au, Ag, Ni, Ge, Zn and Bi, the second plating film being formed around the first plating film. The third element has a concentration of 0.01 or more and 80 or less wt % at an outer surface of the second plating film.

The invention discloses a producing method for copper coated aluminum row profile, and the method comprises following steps in turn: 1) cleaning, 2) drying, 3) head rolling, 4) clearance drawing, 5) bimetal combining furnace heating, 6) high frequency induction heating, 7) hot drawing, 8) heat preserving, 9) oxide layer washing and 10) packing. Beneficial effects of the invention are: the metal is not oxidized during drawing. The high frequency induction skin effect enables two kinds of metal with significantly different melting points reaching the critical point of composite metal metallurgy integrating temperature simultaneously, so a permanent compact metallurgical combining is realized between the two kinds of metals. The density of the profile in the invention is only 36.5% to 41.6% of that of pure copper rows, the length of the profile is 2.45 to 2.70 times of that of pure copper rows, the tensile strength of the profile is over 1.6 to 2 times of that of pure copper rows, and the specific resistance is between 0.027310 ohm question mark mm2/m(-40 Celsius system) and 0.041506 ohm question mark mm2/m(70 Celsius system).

The invention discloses a highly conductive heat-resistant aluminum conductor and a production process thereof. The highly conductive heat-resistant aluminum conductor is characterized by comprising a bearing core wire and an electric conductor, wherein the bearing core wire is a steel strand fabricated by stranding a plurality of high-strength or ultrahigh-strength steel wires with the tensile strength being equal to or larger than 1560 MPa, the electric conductor is fabricated by stranding highly conductive heat-resistant aluminum round wires and aluminum mold lines with the conductivity being higher than 62 percent IACS (International Annealed Copper Standard) on the periphery of the core wire, the bearing steel core wire is subjected to prestress treatment and has low creep rate and ultrahigh strength, and the electric conductor is subjected to heat treatment at the temperature of not more than 400 DEG C so as to resist heat and enable the strength remaining rate to be higher than 95 percent after being heated at the temperature of 150 DEG C for 1 hour. As a power transmission line, the highly conductive heat-resistant aluminum conductor disclosed by the invention can run at a high temperature of 150 DEG C for a long time, has excellent and high conductivity and good sag property, is applicable to capacitance expansion of newly built transmission lines and old transmission lines, and has the remarkable advantages of high conductivity, heat resistance, good sag property, less loss of transmission lines, smoothness of surface, and high resistance to wind, vibration, freezing, rain and snow.

Provided are a silver nanowire conductive film coated with an oxidation protection layer and a method for fabricating the same. A silver nanowire conductive film coated with an oxidation protection layer includes: a substrate; silver nanowires disposed on the substrate; and an oxidation protection layer coated on the silver nanowires, wherein the oxidation protection layer comprises an oxide.

A micro cell fuel cell using a nano porous structure according to a thin film process and an anodizing process as a template for implementing a porous structure of an electrode, its fabrication method, and a micro fuel cell stack using the same are disclosed. The micro-fuel cell includes a solid electrolyte and first and second electrodes separately formed on the electrolyte, wherein at least one of the first and second electrodes is supported by a template having a plurality of nano pores formed by depositing, anodizing and etching a thin film, and is a porous electrode with nano pores formed at positions corresponding to the entirety or a portion of the plurality of nano pores formed on the template. The micro-fuel cell can be fabricated based on the thin film process, and unit cells can be highly integrated to implement a micro-fuel cell system generating a high voltage and a high current.

The invention discloses a movable clamping device for enameled wires. The movable clamping device comprises a conveying belt, wherein the conveying belt is tensioned on two driving rollers; two ends of each driving roller are respectively hinged onto corresponding supporting legs; a servo motor is fixed on one supporting leg, and one end of the driving roller corresponding to the supporting leg extends out of the supporting leg, and is fixed with the output shaft of the servo motor through a shaft coupling; a plurality of rubber object placing block are fixed on the conveying belt; an arc-shaped through groove is formed in the upper surface of each rubber object placing block; two ends of a wire-to-be-placed roller are positioned in each arc-shaped through groove; supporting plates are fixed on the ground on the both left and right sides of the conveying belt; a pushing air cylinder is fixed on each supporting plate; the pushing rod of each pushing air cylinder extends out of the corresponding supporting rod, and is inserted into a center groove formed in one end of the center shaft of the corresponding wire-to-be-placed roller. The movable clamping device has the advantages that the wire-to-be-placed roller wound with copper wires of the enameled wires can be automatically clamped and fixed for wire placing, and the feeding can be automatic, so that the operating efficiency is high; clamping of the wire-to-be-placed roller needs not to be controlled manually, so that the labor cost is reduced.

The invention relates to a manufacturing process of a graphene transparent conductive film. The manufacturing method includes the steps of 1), uncoiling a copper foil in a vacuum chamber, heating a copper-clad chemical deposition reaction zone by using a resistor, feeding in methane gas and hydrogen, subjecting a copper-clad surface to chemical sedimentation to generate a graphene layer, and then adopting plasma to perform etching processing on the graphene layer; 2), adopting a gravure printing process to obtain an oxidize graphene layer; 3), obtaining an oxide graphene film; 4), coating a copper chloride etching solution which is 200g/L in concentration on a copper-clad face of the oxidize graphene film; 5), subjecting the oxidize graphene film to thermal annealing and reduction; 6), coating resin adhesive, sticking the film for packaging, and finally obtaining the patterned graphene transparent conductive film. The manufacturing process is short in film forming time, and low-cost and large-scale mass manufacturing can be realized; the graphene transparent conduction film is high in electric conductivity, good in flexibility, high in pattern definition, higher in acid and alkali resistance of the transparent conductive film and lower in cost.

The invention discloses a preparation method for an Nb-Zr alloy/Cu multi-core composite wire. The preparation method includes the following steps that firstly, Nb and Zr are melted to be cast into an Nb-Zr alloy cast ingot; secondly, hot extrusion is conducted, and an Nb-Zr alloy bar is obtained; thirdly, drawing is conducted, and an Nb-Zr alloy wire is obtained; fourthly, pretreatment is conducted; fifthly, primary compounding is conducted, and a pretreated Nb-Zr alloy/Cu primary composite wire is obtained; and sixthly, secondary compounding is conducted, and the Nb-Zr alloy/Cu multi-core composite wire is obtained. By means of the preparation method, due to electric arc melting and with the combination of a bundle drawing technology, preparation of the multi-core composite wire where core wires are evenly distributed and the organization structure is stable is successfully achieved; and the wire prepared through the method has high strength and high conductivity and also has good oxidation resisting capability and excellent corrosion resisting capability.

The present invention provides a multi-core cable in which skew occurs less and attenuation characteristics of all core cables are uniform, comprising: a core unit; an insulation tape spirally wrapped around the outer circumference of the core unit; and a metal coated resin tape wrapped over the insulation tape, wherein a plurality of core cables each consisting of two insulated wires arranged in parallel are stranded together to form the core unit, and wherein the metal coated resin tape is wrapped in the same direction as the stranding direction of the core cables.

The invention discloses a pressure filling type cable former. The pressure filling type cable former comprises a cable core wire-placing frame, a wire-combining die, a shaping die, a filling apparatus, a cooling apparatus, a wrapping machine, a traction machine and a wire taking-up machine, wherein guiding rollers and a wire-dividing tray are arranged between the cable core wire-placing frame used for placing the cable core and the wire inlet of the wire-combining die; the wire outlet of the wire-combining die is corresponding to the wire inlet of the shaping die; the filling material inlet of the shaping die is connected with the material outlet of the filling apparatus; the wire outlet of the shaping die is corresponding to the wire inlet of the wrapping machine, and the cooling apparatus is arranged between the wire outlet of the shaping die and the wire inlet of the wrapping machine; the wire outlet of the wrapping machine is corresponding to the inlet of the traction machine; and the outlet of the traction machine is corresponding to the inlet of the wire taking-up machine. The invention also discloses a pressure filling type cable forming process. By replacing the existing twisting-in type filling process, the produced finished cable is more circular and tidier in the cable core, the structure is more stable, and the purpose of continuous production without machine halt is fulfilled.

Shielding coatings are applied to polymer substrates for selective metallization of the substrates. The shielding coatings include a primer component and a hydrophobic top coat. The primer is first applied to the polymer substrate followed by application of the top coat component. The shielding coating is then selectively etched to form an outline of a desired current pattern. A catalyst is applied to the patterned polymer substrate followed by electroless metal plating in the etched portions. The portions of the polymer substrate which contain the shielding coating inhibit electroless metal plating. The primers contain aromatic heterocyclic compounds and the top coat contains hydrophobic alky organic compounds.

In an etching method for achieving a dual damascene structure by using at least one layer of a low-k film and at least one layer of a hard mask, a dummy film, which is ultimately not left in the dual damascene structure, is formed in at least one layer over the hard mask in order to prevent shoulder sag. By adopting this method, a dual damascene structure in which the extent of the shoulder sag at the hard mask is minimized can be achieved through etching.

Compositions comprising a thermoplastic elastomer, e.g., a polyurethane, a nitrogen and/or phosphorus-based, intumescent flame retardant, e.g., a polyphosphate, a non-phosphorus-based burn synergist, e.g., carbon black or a metal oxide, and an optional olefin polymer, EVA are provided. Color-stable, halogen-free, flame retardant compositions comprising a thermoplastic elastomer polymer, a phosphorus-based flame retardant, at least 3 weight percent TiO2 and a UV stabilizer are also provided.

The invention discloses solar energy electrical conduction slurry and a preparation method thereof. The slurry comprises, by weight, 70-80 parts of aluminium powder, 9-25 parts of an organic bonding agent, 2-8 parts of a glass binder, 0.02-5 parts of a silane coupling agent and 0-2.5 parts of a dispersing agent. The technical scheme includes that lead is not included, good electrical conductivity, weather resistance performance and chemical resistance are provided, the photoelectric conversion efficiency of a battery is high, and the low warp performance is good.

The invention provides an insulation water retaining aerial cable which comprises a conductor, a shielding layer and an insulation layer. The conductor is composed of an inner core portion formed by 8-12 aluminum alloy leads arranged in the center of a cable and an outer core portion formed by 8-11 pure aluminum leads arranged on the outer layer of the inner core portion. Water retaining yarn fills the space among the leads, an inner shielding layer is wrapped outside the conductor, the insulation layer is wrapped outside the inner shielding layer, the cable can prevent water corrosion completely, a good electric conducting performance is guaranteed, and the weight is not large. The invention further provides a manufacture method of the insulation water retaining aerial cable.

A high-strength high-conductivity rare earth copper-magnesium alloy contact wire comprises, by weight percentage, 0.1-0.8% of magnesium, 0.1-0.4% of nickel, 0.1-0.4% of zinc, 0.1-0.4% of silver, 0.05-0.15% of a rare earth element and the balance copper and inevitable impurity elements, wherein the rear element is one or two of cerium and neodymium. When the rare earth element is added in the form that the cerium and neodymium are mixed, the weight ratio of the cerium and neodymium is 1:1-1:2. The high-strength high-conductivity rare earth copper-magnesium alloy contact wire overcomes the technical defect that the requirements on electrical conductivity and the tensile strength of a copper-magnesium alloy cannot be met at the same time in the prior art and can meet the performance requirement of the copper alloy for the railway contact wire.

The invention discloses a powder-passing apparatus for a cable. The powder-passing apparatus comprises a bracket, a powder-passing box and a sealing cover, wherein the powder-passing box is mounted on the bracket; the sealing cover is mounted above the powder-passing box and connected with the powder-passing box through a hinge; a rotary shaft, an electric heating plate and brushes are mounted in the powder-passing box; helical blades are mounted on the rotary shaft; a motor is mounted on the bracket; the main shaft of the motor is fixedly connected with the rotary shaft; a powder collecting box is mounted on the bracket; and the powder collecting box is connected with the powder-passing box through a material pipe. According to the powder-passing apparatus disclosed by the invention, the rotary shaft, the brushes and the electric heating plate are mounted in the powder-passing box; the rotary shaft can perform stirring on talcum powder by mounting the helical blades to enable the talcum powder to be uniformly coated so as to ensure the coating quality; a material collecting box is mounted behind the powder-passing box, and the powder-passing box and the material collecting box are connected with the powder collecting box through the material pipe, so that cyclic utilization of talcum powder can be realized and waste of raw materials can be reduced; and the sealing cover is mounted on the powder-passing box, so that flying dust can be avoided, and environmental pollution can be reduced.

The invention discloses a method for crimping a high-pressure cross-linking three-layer co-extrusion continuous produced disc-exchanging conductor. The method specifically comprises the following steps: forming head and tail connecting sections with the outer diameter being less than the compressing outer diameter of a conductor after removing layers from a head end of one coil of conductor and a tail end of the other coil of conductor; preparing an iron pipe with the outer diameter being approximate to the compressing outer diameter of the conductor and with the inner diameter slightly being more than the outer diameter of the connecting sections, according to the compressing outer diameter of the conductor; inserting the head connecting section of one coil of conductor and the tail connecting section of the other coil of conductor into inner holes at two ends of a steel pipe; placing into a cavity of a 10-ton hydraulic press and crimping the iron pipe; and crimping the surface of the iron pipe for ten times, thereby causing the conductor therein to be in close contact with an inner wall of the iron pipe. According to the method provided by the invention, the cold pressing welding is applied to the disc-exchanging and connecting of the high-pressure cross-linking three-layer co-extrusion conductor; only an iron crimping pipe and a manual hydraulic mould which are conveniently taken are selected and used; the iron crimping pipe is connected with two ends; compared with a resistance butt-welding connecting method, the method has the advantages that the operation is simple and the success rate is higher; and the once investment in equipment according to the method is reduced by above 30% of the once investment in equipment according to a resistance butt-welding scheme.

This invention provides a clip-casting combined branch cable and its process method. The existing shortcoming is that contact of two cylindrical cables is linear with two small contact area and a slight loose of the clamp plate will cause separation of the two cables showing that the combined branch cable has small stretching resistance. This invented technology scheme is that it includes a main and a branch cable, their contact part is fixed by a clamp plate with a cast A1 protecting jacket becoming an entire unit, and a rubber plastic insulation jacket covers the cast A1 protecting jacket and joints of the main and branch are casted with A1.

The invention discloses a controlling cable and a manufacturing method thereof. The controlling cable comprises a cable core, a layer of belting is arranged on the exterior of the cable core, an outer sheath is arranged on the exterior of the belting, the cable core comprises a cable conductor and an insulating layer, the cable conductor is bundled and twisted by multistrand of copper single wires, and the insulating layer is wrapped on the exterior of the cable conductor. The manufacturing method includes that step one, multistrand of copper single wires are bundled and twisted to form the cable conductor; step two, the insulating layer is formed on the exterior of the cable conductor in an extrusion molding mode to form the cable core; step three, the belting is lapped on the exterior of the cable core, and the lapping tension of the belting is smaller than 50 newtons; and step four, the outer sheath is formed on the exterior of the belting in the extrusion molding mode. According to the controlling cable and the manufacturing method thereof, compared with existing cables, the controlling cable has the advantages of being good in softness, high in flexibility, and long in service life, besides, the manufacturing method of the controlling cable can enhance the softness and flexibility of the finished cable, so that the controlling cable can be widely used for laying equipment occupying small space.

The invention relates to low-temperature conductive silver paste for automobile safety belt alarming and a preparation method thereof. The conductive silver paste comprises the following components inparts by mass: 15-45.4 parts of a resin carrier, 40-45 parts of flake silver powder, 10-15 parts of nanorod silver powder, 2-5 parts of a hardening agent, 0.2-0.5 part of an anti-settling agent and 0.45-1.1 parts of a silicon reagent. The preparation method comprises the following steps: (1) high-speed dispersion; (2) grinding; (3) vacuum filtration; and (4) homogenizing and stirring. Compared with the prior art, the conductive silver paste prepared by the method has the advantages of good conductivity, high adhesive force, high hardness, good flexibility, friction resistance and the like.

The invention discloses a device used for preventing scratching of aluminum conductors. The device comprises a plurality of guiding wheels, a plurality of fixing rods, and a plurality of connecting parts. The guiding wheels are used for the wire penetrating, and the center of each of the guiding wheels is provided with a fixed through hole. The plurality of fixed rods pass through the fixed through holes by the bolts, and each of the guiding wheels is fixedly disposed on one end of each of the fixed rods. Each of the connecting parts is fixedly provided with at least one fixed rod, and the connecting parts are used to connect the fixed rods and the guiding wheels with the externally-connected part. The device is advantageous in that the friction force of the aluminum conductors during the production process can be reduced by using the guiding wheels, and therefore the broken line condition generated by the aluminum conductors during the production can be prevented, and the production efficiency of the aluminum conductors can be improved.

The invention discloses solar cell conductive mixed paste containing polyethylene vinyl acetate. The solar cell conductive mixed paste containing the polyethylene vinyl acetate is prepared by the following raw materials: by weight, A materials 58-61, B materials 24.8-26.8, triethyl citrate 0.2-0.4, octyl epoxy stearate 0.3-0.5, polyethylene vinyl acetate1.8-2.6, poly adipic acid glycol1-2, castor oil 1-2, silane coupling agents KH602 1-2, and organic silicon flatting agents 1-2. Due to the fact that lead is not contained, the solar cell conductive mixed paste containing the polyethylene vinyl acetate completely conforms to the requirements of environmental protection, can be applied to the production of solar cells, and can form strong adhesion on the surfaces of solar cells, and cell photoelectric conversion efficiency is high.