摘要:
A method for preparing a polymer insulated cable including a semiconductive layer surrounding a polymeric insulation layer includes: cutting the semiconductive layer by grinding a circumferential dividing groove in the semiconductive layer using a rotating grinding surface, wherein the dividing groove defines first and second semiconductive sections of the semiconductive layer on opposed sides of the dividing groove; and thereafter removing the second semiconductive section from the polymeric insulation layer while retaining the first semiconductive section on the polymeric insulation layer.
摘要:
A cable having a conducting member made from a nanostructure-based material, and a shielding layer made of nanostructure-based material. The shielding layer can be circumferentially situated about the conducting member so as to enhance conductivity along the conducting member. A coupling mechanism may be situated between the shielding layer and the conducting member so as to secure the shielding layer in its position on the conducting member. A method of making the cable is also disclosed.
摘要:
A panel former is provided for producing a panel that is formed from polymer tubing for solar collectors, heat exchangers, and other devices. The panel former can receive the tubing and continuously wrap the tubing around a drum so that support members can be welded to the tubing. After the support members are welded to the tubing, the tubing can be cut along a line substantially parallel to the support members to remove the tubing from the panel former and to form the risers in a panel.
摘要:
A coaxial cable and method of construction thereof are provided. The coaxial cable includes an elongate central conductive member; a dielectric insulative layer encasing the central conductive member; an outer protective sheath, and a braided EMI shield layer including hybrid yarn sandwiched between the dielectric insulative layer and the outer protective sheath. The hybrid yarn includes an elongate nonconductive filament and an elongate continuous conductive wire filament. The wire filament is interlaced in electrical communication with itself or other wire filaments along a length of the EMI shield layer to provide protection to the central conductive member against at least one of EMI, RFI or ESD. The method includes providing a central conductive member; forming a dielectric insulative layer surrounding the central conductive member; braiding an EMI shield layer including hybrid yarn about the insulative layer, and forming an outer protective sheath about the braided EMI shield layer.
摘要:
The present invention relates to a cable comprising three conductors and three insulator layers, wherein the conductors and the insulators extend helically along a longitudinal axis of the cable, wherein the insulator layers are axially external to the conductors, and wherein the insulator layers comprise a fluoropolymer, as well as a method of manufacturing said cable, and a method for transmitting electricity using the cable.
摘要:
A conductive composite wire includes at least one external jacket made of copper, a first tube including a first metallic material (M1) contacting and located inside the copper jacket; a second tube including a second metallic material (M2) contacting and located inside the first tube; and a fiber including a third metallic material (M3) contacting and located inside the second tube. The copper and the first metallic material are immiscible with each other, the first and second metallic materials are immiscible with each other, and the second and third metallic materials are immiscible with each other. A copper-based coaxial microstructure includes a copper sheath containing an array of nanotubes and nanofibers according to a process for manufacturing the microstructure.
摘要:
A resin material can be prevented from flowing to a front end and a rear end of an inner terminal during an insert molding.Under a state that a hollow and tubular main body part (11c) of an inner terminal (11) formed by covering one of two end parts of a rectangular piece with the other is held by metal molds (14), (15) and (16), the resin material is injected.
摘要:
A coaxial cable includes an inner conductor, a dielectric layer surrounding the inner conductor, an outer conductor surrounding the dielectric layer, and a precoat layer disposed between the inner conductor and the dielectric layer. The precoat layer is adhesively bonded to the inner conductor and to the dielectric layer, and includes a blend of polymeric material and polymeric wax. The adhesive strength of the precoat layer is reduced by the polymeric wax such that the precoat layer can be removed completely and cleanly from the inner conductor as a result of shear forces applied to the precoat layer by standard commercially available coaxial cable stripping tools.
摘要:
A method of manufacturing an insulative material cellular insulator around a conductor, the insulator having a longitudinal passage in which the conductor is housed and closed cells extending longitudinally and separated from each other by radial walls, includes the following operations: the insulative material in the viscous state is extruded to impart the required shape to it to form the cells, the insulative material shaped in this way is applied to the conductor, and the insulative material is cooled to obtain the insulator. The insulative material is applied to the conductor at a distance from the exit of the shaping device such that the material is drawn down sufficiently for the walls of the cells not to be thinned without pressurizing the cells.
摘要:
Coaxial electric cable and simplified process for making it, wherein large gauge center conductor is wrapped with extruded strands of porous expanded polytetrafluoroethylene, drawn through a die to reduce diameter and voids, tape-wrapped with porous expanded polytetrafluoroethylene, sintered, and shielding and extruded jacketing applied.