Thermal expansion yarn filling cable and processing technology thereof

Abstract

The invention provides a thermal expansion yarn filling cable and a processing technology thereof, the filling cable comprises an internal core wire group and a wrapping layer wrapping the core wire group, thermal expansion bodies are filled between the core wire group and between the core wire group and the wrapping layer, and after the thermal expansion bodies expand, gaps between the core wire group and the wrapping layer are tightly filled. According to the cable, gaps of the core wires are filled with the thermal expansion yarns, seamless filling can be achieved, the core wires are kept positioned and are not prone to loosening, breakage caused by dislocation of the inner core wires in the high-speed rotating process can be avoided, the non-woven fabric is wound around the cable, the cable has the very high transverse and longitudinal tensile resistance function, outward expansion force of the inner thermal expansion yarn can be well borne, disordered arrangement of the inner core wire group after expansion can be prevented, the outer layer of the non-woven fabric is further sleeved with the insulating sheath which is not prone to deformation, the overall strength of the cable is high, and meanwhile the inner structure is not too complex.

Description

technical field [0001] The invention relates to the technical field of filling cables, in particular to a heat-expandable yarn filling cable and a processing technology thereof. Background technique [0002] At present, the cables for high-speed mobile applications require the cable materials to have high strength or flexibility on the one hand, and on the other hand, the internal structure of the cables is also required to be tight and compact. During the high-speed repeated bending and twisting process, the core wires cannot be misplaced. . Because once misaligned, the original state of consistent tension of the core wires will be disrupted, and one or several core wires will be overstressed, resulting in breakage. Therefore, it is particularly important to ensure the stability of the cable structure. [0003] The filling material is an important measure to ensure the stability of the cable. It plays the role of filling the core wire gap inside the cable. At present, the ...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a heat-expandable yarn filled cable and its processing technology to overcome the problem of insufficient cable strength caused by the low filling density of the filled cable in the prior art

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