Whitening ultraviolet-proof ethylene-propylene rubber insulation control cable for ships and manufacturing method thereof
An ethylene-propylene rubber insulation and anti-ultraviolet technology, which is used in the manufacture of insulated cables, rubber insulators, and cables/conductors. It can meet the requirements of anti-ultraviolet rays and other problems of cables, and achieve the effects of excellent resistance to ultraviolet light aging, long service life, and excellent resistance to sunlight and weathering.
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Embodiment 1
[0021] Such as figure 1 As shown, the whitening and anti-ultraviolet ethylene-propylene rubber insulated marine control cable of the present invention is manufactured according to the following steps: extruding the whitening and anti-ultraviolet ethylene-propylene rubber insulating layer 2 on the outer periphery of the tinned annealed stranded copper conductor 1 of 0.35mm Insulated wire cores, a plurality of insulated wire cores are twisted to the right with a twisted pitch ratio of 20 times to form a cable core, and then an inner liner 3 is extruded on the outer periphery of the cable core, and then the inner liner 3 is wrapped around the outer periphery of the inner liner 3 Copper alloy wire braided armor layer 4 is covered, and an outer sheath 5 is extruded on the outer periphery of copper alloy wire braided armor layer 4 .
[0022] Among them, the minimum thickness of the whitening and anti-ultraviolet ethylene-propylene rubber insulation layer 2 is not less than 90% of th...
Embodiment 2
[0026] The whitening and anti-ultraviolet ethylene-propylene rubber insulated marine control cable of the present invention is manufactured according to the following steps: extruding a whitening and anti-ultraviolet ethylene-propylene rubber insulating layer 2 on the outer periphery of a 1.25mm tinned annealed stranded copper conductor 1 to form an insulated wire core , a plurality of insulated wire cores are twisted rightward with a stranded pitch ratio of 22 times to form a cable core, and then an inner liner 3 is extruded on the outer periphery of the cable core, and then the outer periphery of the inner liner 3 is coated with copper The alloy wire braided armor layer 4 is finally extruded with an outer sheath 5 around the outer periphery of the copper alloy wire braided armor layer 4 .
[0027] Among them, the minimum thickness of the whitening and anti-ultraviolet ethylene-propylene rubber insulation layer 2 is not less than 90% of the nominal value, and the maximum thick...
Embodiment 3
[0031] The whitening and anti-ultraviolet ethylene-propylene rubber insulated marine control cable of the present invention is manufactured according to the following steps: extruding the whitening and anti-ultraviolet ethylene-propylene rubber insulating layer 2 on the outer periphery of a tinned annealed stranded copper conductor 1 of 2.5mm2 to form an insulated wire core , a plurality of insulated wire cores are twisted rightward at a twisting pitch ratio of 24 times to form a cable core, and then an inner liner 3 is extruded on the outer periphery of the cable core, and then the outer periphery of the inner liner 3 is coated with copper The alloy wire braided armor layer 4 is finally extruded with an outer sheath 5 around the outer periphery of the copper alloy wire braided armor layer 4 .
[0032] Among them, the minimum thickness of the whitening and anti-ultraviolet ethylene-propylene rubber insulation layer 2 is not less than 90% of the nominal value, and the maximum th...
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