Waterproof stain-resistant rubber sheathed cable and manufacturing method thereof

Abstract

The invention discloses a waterproof stain-resistant rubber sheathed cable and a manufacturing method thereof. The waterproof stain-resistant rubber sheathed cable comprises an inner core; an inner sheath is coated on the outer surface of the inner core; corrugated aluminum plastic composite strips are longitudinally lapped outside the inner sheath; an outer sheath is coated on the outer surface of each corrugated aluminum plastic composite strips; the inner core comprises an inner conductor; an insulating layer is arranged on the outer surface of the inner conductor; and a first waterproof tape is lapped outside the insulating layer. The method for manufacturing the waterproof stain-resistant rubber sheathed cable comprises the following steps of: firstly, performing wiredrawing, annealing, bunch stranding and compound stranding on a copper bar; secondly, performing insulation extrusion, cabling, filling and lapping the waterproof tape and the waterproof strips; thirdly, performing inner sheath extrusion; and finally, longitudinally lapping the corrugated aluminum plastic composite strips and performing extrusion on the outer sheath of the chloroprene rubber. The waterproof stain-resistant rubber sheathed cable has the advantages of excellent insulating property and mechanical property, high elasticity, small compression deformation, over 60 percent of resilience rate, oil stain resistance, solvent resistance, no secondary combustion, excellent weather resistance, cold resistance, heat resistance and aging resistance, reasonable structure, and bending property and longitudinal waterproof property.

Description

technical field [0001] The invention relates to a cable and a manufacturing method thereof, in particular to a water-blocking and stain-resistant rubber-sheathed cable used in oily, water-immersed, and highly corrosive environments such as industry, agriculture, commerce, and construction, and a manufacturing method thereof. Background technique [0002] When cables are used in oily, water-immersed, and highly corrosive environments such as industry, agriculture, commerce, and construction, they are not only soaked in water, but also eroded by oily, highly corrosive substances. The existing technical process is to use natural styrene-butadiene rubber as insulation and sheath, and when it is cabled, it is wrapped with water-blocking tape. Natural rubber is a non-polar substance, which is easily soluble in oil stains. Styrene-butadiene rubber has poor insulation performance, unstable physical properties, and large changes with temperature changes, so its radial water resistanc...

AI Technical Summary

Problems solved by technology

Natural rubber is a non-polar substance, which is easily soluble in oil stains. Styrene-butadiene rubber has poor insulation performance, unstable physical properties, and large changes with temperature changes, so its radial water resistance and oil resistance are poor; prior art There is no longitudinal corrugated aluminum-plastic composite tape in the structure of the process, which does not have longitudinal waterproof performance

[0003] The traditional production technology of water-blocking and pollution-resistant cables has the following problems: 1) The poor performance of the material itself leads to poor insulation and mechanical properties; 2) Poor insulation and sheath elasticity, large compression deformation, and low strength; 3) Poor oil resistance; 4) Weather resistance, heat aging resistance, poor cold resistance; 5) Flammability, good flame delay; 6) Unreasonable structure, poor radial water resistance, no longitudinal water resistance

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