1293results about "Apparatus for heat treatment" patented technology

A method for manufacturing a lead includes forming an elongated multi-lumen conductor guide defining a central stylet lumen and a plurality of conductor lumens arranged around the stylet lumen. The multi-lumen conductor guide is twisted to form at least one helical section where the plurality of conductor lumens each forms a helical pathway around the stylet lumen. Each of the helical pathways of the at least one helical section has a pitch that is no less than 0.04 turns per centimeter.

A process for producing a solid graphene foam composed of multiple pores and pore walls The process comprises: (a) preparing a graphene dispersion having a graphene material dispersed in a liquid medium, which contains an optional blowing agent; (b) dispensing and depositing the graphene dispersion onto a supporting substrate to form a wet layer of graphene material having a preferred orientation; (c) partially or completely removing the liquid medium from the wet layer of graphene material to form a dried layer of graphene material having a content of non-carbon elements no less than 5% by weight (including blowing agent weight); and (d) heat treating the layer of graphene material at a first heat treatment temperature from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements or to activate the blowing agent for producing the graphene foam having a density from 0.01 to 1.7 g/cm³ or a specific surface area from 50 to 3,000 m²/g.

This invention relates to an aluminum conductor composite core reinforced cable (ACCC) and method of manufacture. An ACCC cable has a composite core surrounded by at least one layer of aluminum conductor. The composite core comprises a plurality of fibers from at least one fiber type in one or more matrix materials. The composite core can have a maximum operating temperature capability above 100° C. or within the range of about -45° C. to about 230° C., at least 50% fiber to resin volume fraction, a tensile strength in the range of about 160 Ksi to about 370 Ksi, a modulus of elasticity in the range of about 7 Msi to about 37 Msi and a coefficient of thermal expansion in the range of about -0.7x10<-6 >m/m/° C. to about 6x10<-6 >m/m° C. According to the invention, a B-stage forming process may be used to form the composite core at improved speeds over pultrusion processes wherein the speeds ranges from about 9 ft/min to about 60 ft/min.

Disclosed are methods for making conductive materials. The methods can be used to make transparent, opaque, or reflective electrodes by using the same materials and equipment but varying the processing conditions or amounts of materials used. The methods can include: (a) providing a substrate comprising a first surface and an opposite second surface, wherein micro- or nanostructures are disposed on at least a portion of the first surface, and wherein the first surface is not pre-conditioned to increase attachment between the micro- or nanostructures and the substrate; (b) applying heat to heat the substrate surface to a temperature that is greater than the glass transition temperature or the Vicat softening temperature of the substrate and less than the melting point of the substrate; (c) applying pressure such that the substrate and the micro- or nanostructures are pressed together; and (d) removing the pressure to obtain the conductive material.

An aluminum alloy wire having excellent bending characteristics, strength, and electrically conductive characteristics, an aluminum alloy stranded wire, a covered electric wire including the above-described alloy wire or stranded wire, and a wire harness including the covered electric wire are provided. The aluminum alloy wire contains not less than 0.1% and not more than 1.5% by mass of Mg, not less than 0.03% and not more than 2.0% of Si, not less than 0.05% and not more than 0.5% of Cu, and a remainder including Al and an impurity, satisfies 0.8≦Mg/Si ratio by mass ≦3.5, has an electrical conductivity from 35% IACS to 58% IACS, a tensile strength from 150 MPa to 400 MPa, and an elongation not less than 2%. The aluminum alloy wire is manufactured through the steps of casting→rolling→wiredrawing→solution heat treatment.

Circuits, methods, and apparatus that provide cables capable of high-speed transmission while remaining compatible with legacy signals. Other examples may have shielding that may be easily manipulated during manufacturing, they may have good tensile strength, and they may be less likely to be damaged by twisting and bending that may occur during use.

A composite core for an electrical cable, the composite core defining a longitudinal axis that defines a center of the composite core, the core comprising a plurality of longitudinally extending reinforcing fibers embedded in a resin matrix, the fibers oriented substantially parallel to the longitudinal axis and a sheath surrounding the plurality of longitudinally oriented fibers. The sheath may further comprise a plurality of off-axis reinforcing fibers oriented at an angle relative to the longitudinal axis surrounding the longitudinally extending fibers. The sheath may comprise a type of resin, including for example, thermosetting resin or thermoplastic resin.

A conductive adapter for carrying relatively high current from a source to an external circuit without degradation is provided. The adapter includes a conducting member made from a conductive nanostructure-based material and having opposing ends. The adapter can also include a connector portion positioned on one end of the conducting member for maximizing a number of conductive nanostructures within the conducting member in contact with connector portion, so as to enable efficient conduction between a nanoscale environment and a traditional electrical and/or thermal circuit system. The adapter can further include a coupling mechanism situated between the conducting member and the connector portion, to provide a substantially uniform contact between the conductive nanostructure-based material in the conducting member and the connector portion. A method for making such a conductive adapter is also provided.

A composite conductive film is provided that includes a layer of cross-linked polymer having a surface and an inorganic mesh comprising a plurality of nanowires of an inorganic material. The nanowires are, in isolated form, characterized by a first conductivity stability temperature. Further, the plurality of nanowires is embedded within at least a region of the layer of cross-linked polymer, where the region is continuous from the surface of the layer of cross-linked polymer. The layer of cross-linked polymer and the inorganic mesh are arranged to form the composite conductive film having a second conductivity stability temperature that is greater than the first conductivity stability temperature.

The invention provides a copper-iron alloy material electromagnetic shielding wire and a preparation method thereof, and belongs to the technical field of electromagnetic shielding wire material. Thecopper-iron alloy material comprises the following chemical components of, in percentage by weight, 5%-20% of Fe, less than or equal to 0.2% of Ni, less than or equal to 0.2% of Mn, less than or equalto 0.1% of Pb and the balance of Cu. The preparation method comprises the following steps of S1, preparing material; S2, smelting, and up leading continuously casting to obtain a phi 10 mm-20 mm copper rod blank; step 3, drawing, and repeatedly carrying out high-temperature annealing during drawing to obtain a phi 1 mm-2 mm copper-iron alloy wire rod; S4, carrying out heat preservation; S5, carrying out multi-pass drawing again to obtain an electromagnetic shielding wire with the diameter of phi 0. 05 mm-0.5 mm; and S6, weaving to obtain a net wire with electromagnetic shielding. According tothe method, the performance, the structure, the material utilization rate, the industrialization and other aspects of the prepared copper-iron alloy shielding wire are further improved, and a new path is provided for the application and the development of the copper-iron alloy shielding wire.

An aluminum alloy conductor having a high conductivity and a high bending fatigue resistance, and further achieving an appropriate proof stress and a high elongation is provided. An aluminum alloy conductor of the present invention has a composition consisting of Mg: 0.10 mass% to 1.00 mass%, Si: 0.10 mass% to 1.00 mass%, Fe: 0.01 mass% to 2.50 mass%, Ti: 0.000 mass% to 0.100 mass%, B: 0.000 mass% to 0.030 mass%, Cu: 0.00 mass% to 1.00 mass%, Ag: 0.00 mass% to 0.50 mass%, Au: 0.00 mass% to 0.50 mass%, Mn: 0.00 mass% to 1.00 mass%, Cr: 0.00 mass% to 1.00 mass%, Zr: 0.00 mass% to 0.50 mass%, Hf: 0.00 mass% to 0.50 mass%, V: 0.00 mass% to 0.50 mass%, Sc: 0.00 mass% to 0.50 mass%, Co: 0.00 mass% to 0.50 mass%, Ni: 0.00 mass% to 0.50 mass%, and the balance: Al and incidental impurities, wherein the aluminum alloy conductor has an average grain size of 1 µm to 35 µm at an outer peripheral portion thereof.

Disclosed is a conductive composition useful for the preparation of electrically conductive structures on a substrate comprising a plurality of metal particles, a plurality of glass particles and a vehicle comprising at least one cellulose derivative and at least one solid organopolysiloxane resin dissolved in a mutual organic solvent. The solid organopolysiloxane resin acts as adhesion promoter and assists in stably dispersing the metal and glass particles to avoid an agglomeration of such particles without degrading the rheological properties. From such conductive compositions uniform well adherent electrically conductive structures essentially free from defects in the form of cracks, bubbles or coarse particulates can be prepared on dielectric or semiconductor substrates such as silicon wafers in an efficient and cost-saving manner e.g. by screen printing, drying and sintering while inducing only low warping of the substrate. These characteristics render said conductive compositions particularly useful for the fabrication of electrodes of a semiconductor solar cell helping to increase the cell conversion efficiency.

To provide a process for producing a transparent electrode comprising a tin oxide film which can readily be patterned, which can be realized at a low cost, and which has low resistivity and is excellent in transparency. A process for producing a transparent electrode having a patterned tin oxide film formed on a substrate, which comprises a step of forming a tin oxide film having light absorption characteristics on a substrate, a patterning step of removing part of the tin oxide film having light absorption characteristics, and a step of subjecting the patterned tin oxide film having light absorption characteristics to heat treatment to obtain a tin oxide film.

The invention relates to a production method of high-strength large-elongation aluminum-clad steel wire, comprising the following steps: 1) hot-drawing high-carbon steel wire rod to different wire diameters through cold drawing; 2) carry out lead bath quenching treatment on that steel wire, and carry out on-line pickling and rinsing to obtain a pretreated steel wire; 3) uniformly cover an outer lay of that pretreated steel wire with a layer of aluminum to form a cladding blank; 4) that coat blank is drawn into a super-high-strength aluminum clad steel wire semi-finished product through multiple passes of a bimetal synchronous deformation wire draw machine; 5) age that semi-finished product of the high-strength aluminum-clad steel wire through a high-temperature box. The method of the invention changes the traditional lead bath heat treatment temperature, The tensile strength of Al-clad steel wire is increased by multi-pass synchronous deformation and drawing with small compression ratio, and the elongation of Al-clad steel wire is increased by high temperature aging treatment. The ultimate tensile strength >= 1700 MPa, elongation >= 3. 0%, and other indexes are in accordance with the requirements of Al-clad steel GB/T17937-2009 standard, thereby meeting the requirements of high strength and high elongation and meeting the application requirements.

An aluminum alloy conductor, having a specific aluminum alloy composition of Al—Fe—Cu—Mg—Si—(TiN) or Al—Fe—(Cu/Mg/Si)—(TiN), in which, on a cross-section vertical to a wire-drawing direction, a grain size is 1 to 20 μm, and a distribution density of a second phase with a size of 10 to 200 nm is 1 to 10² particles/μm²; and a production method thereof.

An aluminum alloy conductor having a high conductivity and a high bending fatigue resistance, and further achieving a high impact absorption property and a high elongation at the same time is provided. An aluminum alloy conductor of the present invention has a composition consisting of Mg: 0.10 mass% to 1.00 mass%, Si: 0.10 mass% to 1.00 mass%, Fe: 0.01 mass% to 1.40 mass%, Ti: 0.000 mass% to 0.100 mass%, B: 0.000 mass% to 0.030 mass%, Cu: 0.00 mass% to 1.00 mass%, Ag: 0.00 mass% to 0.50 mass%, Au: 0.00 mass% to 0.50 mass%, Mn: 0.00 mass% to 1.0 mass%, Cr: 0.00 mass% to 1.00 mass%, Zr: 0.00 mass% to 0.50 mass%, Hf: 0.00 mass% to 0.5 mass%, V: 0.00 mass% to 0.5 mass%, Sc: 0.00 mass% to 0.50 mass%, Ni: 0.00 mass% to 0.10 mass%, and the balance: Al and incidental impurities, wherein a dispersion density of compound particles having a particle size of 20 nm to 1000 nm is greater than or equal to 1 particle/µm 2 .

An electrical cable includes a conductor assembly having a first conductor, a second conductor and an insulator surrounding the first conductor and the second conductor. The insulator has an outer surface and extends along a longitudinal axis for a length of the electrical cable. The conductor assembly has a coating layer on the outer surface of the insulator being conductive defining an inner electrical shield of the electrical cable. A cable shield is wrapped around the conductor assembly and has an inner edge and an outer edge. The outer edge is wrapped over the inner edge to form a flap covering the inner edge and extending along the longitudinal axis. The cable shield engages the inner electrical shield and forms an outer electrical shield exterior of the inner electrical shield.

The present invention forms a conductive pattern using a simple process on a general plastic substrate having flexibility, and also provides a conductive pattern forming film that allows for easy formation of a conductive pattern using an apparatus that performs a simple process of oriented pressurization at low temperature, as well as a method for forming conductive pattern and a conductive pattern forming apparatus for the same.

The conductive pattern forming film provides a pattern formed on a film substrate having flexibility by pressurizing, under heating, a conductive paste in which powder or fine particles of metal or semiconductor are dispersed and filled. The conductive pattern forming apparatus comprises a sample installation table having a flat placement surface, and a driving body for pressure application which is placed in a manner facing the placement surface and movable, wherein the driving body for pressure application is equipped with a support which is constituted by a flat metal panel having metal spheres along its bottom face.