104results about "Auxillary non-insulated conductors" patented technology

A bonding washer for making electrical connection between two metal pieces that are to be mechanically fastened together. The washer, to be interposed between the two metal pieces, is constructed so as to fasten to one of the pieces before the two pieces are joined. Teeth on the washer, positioned at right angles to the plane of the washer, are forced into each of the two metal pieces when the fastener is tightened, making electrical connection between the two metal pieces.

A cluster of non-collapsed nanowires, a template to produce the same, methods to obtain the template and to obtain the cluster by using the template, and devices comprising the cluster are described. The cluster and the template both have an interconnected region and an interconnection-free region.

A method for manufacturing an electrical steel sheet is provided. The method for manufacturing an electrical steel sheet includes forming a groove having first and second side surfaces and a bottom surface by melting a surface of a steel sheet by laser irradiation, and forming an opening by removing melted byproducts of the steel sheet formed on the first and second side surfaces and the bottom surface through air blowing or suctioning to expose at least one surface of the first side surface, the second side surface, and the bottom surface in the forming of the groove.

An insulated electric wire includes a linear conductor and one or a plurality of insulating layers formed on an outer peripheral surface of the conductor. At least one of the one or plurality of insulating layers contains a plurality of pores, outer shells are disposed on peripheries of the pores, and the outer shells are derived from shells of hollow-forming particles having a core-shell structure. A varnish for forming an insulating layer contains a resin composition forming a matrix and hollow-forming particles having a core-shell structure and dispersed in the resin composition. In the varnish, cores of the hollow-forming particles contain a thermally decomposable resin as a main component, and shells of the hollow-forming particles contain a main component having a higher thermal decomposition temperature than the thermally decomposable resin.

The invention provides a transmission line to prevent a snow and ice disaster. The transmission line is provided with, from inside to outside, a conductor, an insulation layer and a support layer. The support layer contains rubber. By adding of the insulation layer and the insulating support layer around the surface of the conductor, heat loss of the transmission line, and a heat conduction process and a convective heat exchange process between the transmission line and the transmission line surrounding environment are changed; and an artificial "diffusing heat dam" which can overflow is produced, so that temperature field distribution of the transmission line, of the insulation layer, of the support layer, of a thin contacting layer between the transmission line and surrounding air, and of a transmission line surrounding air environment layer is changed. Accordingly, the probability of the glaze, snow rime and the like to form the snow and ice disaster of the transmission line is eliminated; and the effect of preventing the snow and ice disaster of the transmission line is realized.

The invention discloses an electric conductor with a graphene core and a preparation method of the electric conductor with the graphene core. The electric conductor with the graphene core comprises the graphene core surrounded by a sheath, wherein the graphene core is formed by compressing graphene particles. By the electric conductor with the graphene core, the skin effect can be reduced to the maximal extent; the conductivity can be improved; the transmission loss is reduced; and the total mechanical load of a transmission line is reduced.

A joined body 20 includes comprises a first member 21, a second center 22 having a high coefficient of thermal expansion as compared to that of the first member 21, and a joint portion 30 which at least partially includes a mixed layer 33 containing metal of a transition metal and an oxide of the transition metal and which joins the first member 21 and the second member 22. In this joint portion 30, a first layer 31 containing a first oxide of a transition metal, a second layer 32 containing a second oxide of a transition metal having a low valence as compared to that of the first oxide, and the mixed layer 33 metal of a transition metal and an oxide thereof preferably are formed so as to form a multilayer structure.

A polymeric coating can be applied to an overhead conductor. The overhead conductor includes one or more conductive wires, and the polymeric coating layer surrounds the one or more conductive wires. The overhead conductor can operate at a lower temperature than a bare overhead conductor with no polymeric coating layer when tested in accordance with ANSI C119.4 method. Methods of applying a polymeric coating layer to an overhead conductor are also described herein.

A method for fabricating a conductive yarn includes the steps of: moistening a preformed yarn with a conductive slurry to prepare the preformed yarn absorbed with the conductive slurry; and drying the preformed yarn absorbed with the conductive slurry. The conductive slurry includes a conductive nanometer structure, a solvent, and a resin component. The conductive nanometer structure has an aspect ratio sufficient to permit binding of the conductive nanometer structure to the preformed yarn.

An electrical conduction device is provided having an electrically conductive conduction element and an electrically insulating sheathing surrounding said conduction element at least in regions. An overhang corona shielding in the form of a coating composed of a material having a resistivity that increases towards an end of the sheathing is arranged on the sheathing at an outer side. An overhang corona shielding arrangement and a method for producing an overhang corona shielding are also provided.

The invention provides an assembled conductor, which is formed by rolling a conductor bundle including a central conductor and a peripheral conductor arranged around the central conductor. The central conductor has a shape in which a right-twisted portion of the central conductor and a left-twisted portion of the central conductor are arranged alternately in predetermined intervals. The right-twisted portion of the central conductor extends from one end side of the central conductor to the other end side of the central conductor and is twisted in a clockwise direction, and the left-twisted portion of the central conductor extends from the one end side of the central conductor to the other end side of the central conductor and is twisted in a counterclockwise direction. The peripheral conductor is arranged around the central conductor so that a twist direction of the peripheral conductor becomes opposite to a twist direction of the central conductor.

The invention relates to the technical field of aluminum-based composite materials, in particular to a carbon nanotube reinforced multilayer aluminum-based composite material as well as a preparationmethod and application thereof. The method comprises the following steps: 1) treating the surface of an aluminum substrate with alkaline liquor and acid liquor, cleaning, drying and then performing grinding pretreatment on the surface of the aluminum substrate; 2) acidifying a carbon nanotube with mixed acid, and then preparing the acidified carbon nanotube into a carbon nanotube suspension; 3) placing the carbon nanotube suspension prepared in the step 2) on the surface of the aluminum substrate ground in the step 1), and drying to obtain a carbon nanotube/aluminum single-layer composite plate; 4) piling the composite plate obtained in the step 3) alternatively, performing prepressing forming, and then performing vacuum sintering; and 5) rolling the product obtained after vacuum sinteringin the step 4) to obtain the carbon nanotube reinforced multilayer aluminum-based composite material. The carbon nanotube is taken as a reinforced layer among multiple layers of aluminum substrates,so that the mechanical property and conductivity of the multilayer aluminum-based composite material can be enhanced effectively.

The embodiment of the invention discloses an electromagnetic shielding membrane, which relates to the field of wire material manufacturing and is used to solve the problems that the existing electromagnetic shielding membrane is easy to break and the preparation process consumes a lot of time and electric energy. The electromagnetic shielding film body for cables of the present invention includes a first metal layer, a conductive layer and a protective film; the first metal layer is covered on the outer cover of the conductor of the cable, and is used for shielding electromagnetic interference and as a medium; the conductive layer It is arranged on the first metal layer for shielding electromagnetic interference, and the conductive layer includes a curing agent, metal particles and polyurethane for carrying metal particles; the protective film is arranged on the conductive layer for protecting the electromagnetic shielding film body, The first metal layer is a metal film composed of at least one of gold, silver, copper, nickel and aluminum, or an alloy film of at least two of gold, silver, copper, nickel and aluminum, so that the first The metal layer shields electromagnetic interference and acts as a conductive medium at the same time.

The invention provides a vibration reduction wire formed by combining aluminum clad steel cores and aluminum-alloy twisted wires.Natural vibration frequencies of all layers of the aluminum alloy wires and aluminum clad steel cores are different and are mutually interfered, and therefore aeolian vibration energy is automatically consumed, and the vibration reduction effect is achieved.The vibration reduction wire comprises an inner core conductor and outer layer conductors, the inner core conductor is formed by twisting multiple aluminum clad steel wires, the outer layer conductors comprise at least two layers, each layer of the outer layer conductors is formed by combining multiple sections of aluminum alloy wires with the same radian, the outer layer conductor on the innermost layer forms an enclosed first circular ring surface structure in a combined mode, each layer of the outer layer conductors forms the corresponding enclosed circular ring surface structure in a combined mode, the outer layer conductors of the relative-inner layer are arranged in a circular inner cavity formed by the enclosed ring surface structure composed of the outer layer conductors of the adjacent relative-outer layer, and the inner diameter of the enclosed ring surface structure composed of the outer layer conductors of the adjacent relative-outer layer is large than the outer diameter of the enclosed ring surface structure composed of the outer layer conductors of the relative-inner layer.

The invention provides a heatable copper alloy contact wire. A heatable soft copper twisted wire is arranged in the heatable copper alloy contact wire, through electrifying and heating the soft copper twisted wire, an icing problem of the external contact wire is solved, and small power consumption and high icing efficiency are realized. The heatable copper alloy contact wire comprises a contact wire body and is characterized in that a top portion of the contact wire body in the length direction is provided with a penetration hole, the penetration hole is internally provided with a heating wire, and the heating wire comprises the internal soft copper twisted wire and an external insulation sheath.