Copper-clad aluminum flexible cable and manufacture method thereof

Abstract

The invention discloses a copper-clad aluminum two-core flame-retardant flexible cable and a manufacture method thereof. The method comprises a step of manufacturing copper-clad aluminum wires into single conductive wire cores, a step of processing the single conductive wire cores into conductive wire cores with semicircular cross sections, an insulation processing step of insulating the conductive wire cores with the semicircular cross sections to form insulated wire cores with insulation layers, a step of cabling two insulated wire cores with the insulation layers to form a cable and a stepof extruding plastics on the cable to form a flame-retardant sleeve layer, wherein the step of manufacturing copper-clad aluminum wires into single conductive wire cores is realized by utilizing a wire-drawing machine to draw copper-clad aluminum wires into single conductive monofilaments; utilizing an annealing machine to anneal the single conductive monofilaments; utilizing a wire-bundling machine to bundle a plurality of annealed conductive monofilaments into a braided wire; and utilizing a wire-twisting machine to twist a plurality of braided wires into a conductive wire core. The cable has the advantages of less copper consumption, light weight and low cost.

Description

technical field [0001] The invention relates to wire and cable technology, in particular to a copper-clad aluminum flexible cable and a manufacturing method thereof. Background technique [0002] For the concept of copper-clad aluminum, wire and cable manufacturers are no strangers, that is, the structure of each conductive monofilament that constitutes the conductive core is processed into the outer layer of copper and the inner layer of aluminum, which can save a lot of belongings. Copper, a strategic resource, can make copper play its biggest role. In the literature such as Chinese patent literature, there are many reports in the past, such as: the copper-clad aluminum communication cable introduced by the Chinese patent authorization announcement number CN2881898, the copper-clad aluminum data communication cable disclosed by CN2881899, and the copper-clad aluminum conductor communication cable recommended by CN200979818Y , CN101060024A public copper-clad aluminum condu...

AI Technical Summary

Problems solved by technology

[0003] However, due to the small tensile force and low strength of aluminum, for copper-clad aluminum conductors with small diameters or small amounts of copper, the copper-clad aluminum conductors are easily broken and the processing difficulty is significantly increased, or even impossible to process.

However, if the diameter is increased or the amount of copper used is increased, the cable will be hardened, which is not conducive to laying

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