Cable production process

Abstract

The invention discloses a cable production process. According to the technical scheme, the cable production process is characterized by specifically comprising the steps of S1, conducting monofilamentdrawing, specifically, enabling a copper rod material to pass through one or more die holes of a drawing die through a wire drawing machine at the normal temperature; S2, conducting monofilament annealing; S3, carrying out wire stranding; S4, carrying out insulation extrusion; S5, cabling, specifically, filling an insulating material between the exterior of the stranded wire core and the insulating layer, and stranding the cable obtained in the step S4 into a round shape in a back-twist-free manner; S6, extruding an inner sheath, specifically, extruding the inner sheath between the insulatinglayer and the insulating material, wherein the inner sheath comprises an isolation sleeve inner sheath layer and a wrapping inner sheath layer; and S7, extruding an outer sheath, specifically, directly extruding a plastic outer sheath by using a plastic extruding machine. The quality of the monofilament copper wire obtained through the cable production process is improved, it can be guaranteed that the contact area between the wire cores is large as much as possible, the electric conductivity of the cable can be improved, the flatness and precision of the exterior of the cable are guaranteed,and the service life of the cable is prolonged.

Description

Technical field [0001] The invention relates to the field of cable production, in particular to a cable production process. Background technique [0002] Cable is a general term for optical cables and cables. There are many uses for cables, mainly for multiple functions such as controlling installation, connecting equipment, and transmitting power. Among them, copper core cables are the most widely used. [0003] With reference to the existing Chinese patent with publication number CN104319019A, it discloses a cable production process, which includes the following steps: selecting a tin-plated copper wire with a diameter of 0.1-0.6mm as the core; The tinned copper wire is twisted; the conductor is vacuum insulated and wrapped by an extruder with insulating material, and steam is used to steam after the core wire is completed. The steaming time is 4-5 hours; the multi-strand core is required Wire twisted into a cable; wrap a layer of aluminum foil outside the core wire with a wra...

AI Technical Summary

Problems solved by technology

But the above-mentioned production process of this cable still has some shortcomings, as: one, the manufacturing process of copper wire is not provided, and ordinary copper wire is mostly carried out by drawing when manufacturing and producing, only relying on its The self-generated heat achieves the purpose of low-temperature tempering, resulting in coarse grains in some areas of the copper wire, stress concentration, and influence on the conduction performance of the cable; 2. The wire stranding process does not control the wire itself, and each wire There is likely to be a large gap between the cores, which affects the conductivity of the wire after stranding; 3. Only one layer of sheath is produced, resulting in poor wear resistance and corrosion resistance of the cable

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