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Double-layer ceramic insulating non-toxic irradiation-free electric wire and manufacturing method thereof

A radiation-free, ceramic technology, applied in the direction of insulated cables, insulators, insulated conductors, etc., can solve the problems of lengthy and complicated production process, lack of long-term high temperature resistance, and great influence of human factors, etc., to achieve strong tensile resistance Improvement of performance and fire performance, and improvement of anti-interference ability

Inactive Publication Date: 2020-07-24
杨义展
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although most fire-resistant cables can pass the dual standard requirements of the porcelain performance test in the standard GB / T19216.21-2003 and the fire test of the BS6387CWZ grade, they can also obtain excellent flame-retardant performance and low-smoke performance, which can meet the test of Class A combustion. Requirements, but the production process of these ceramic polyolefin cable materials is lengthy and complicated, and the human factors in the production are greatly affected, and problems are prone to occur
At the same time, ordinary irradiated cross-linked polyolefin cables can only withstand a temperature of 110 degrees, which cannot achieve the effect of long-term high temperature resistance

Method used

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  • Double-layer ceramic insulating non-toxic irradiation-free electric wire and manufacturing method thereof
  • Double-layer ceramic insulating non-toxic irradiation-free electric wire and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] according to figure 1 , figure 2 , a double-layer ceramic insulated non-toxic radiation-free wire, including one or more metal cores 1, each of the metal cores 1 is uniformly wrapped with an inner skin 2, and also includes a wire for wrapping all the inner skins 2 and the outer skin 3 of the metal core 1, wherein: the inner skin 2 is composed of a first ceramic layer 4 coated on the outside of the metal core 1, and a first insulation layer coated on the outside of the first ceramic layer 4 The radiation layer 6 is formed; the outer skin 3 is composed of a second ceramic layer 5 and a second radiation-free layer 7 sequentially provided from the inside to the outside.

[0027] The first radiation-free layer 6 is made of the following materials by weight: 40-80 parts of polypropylene resin, 12-15 parts of modified hydrotalcite, 8-16 parts of heat stabilizer, and 40-60 parts of plasticizer , 4-8 parts of modified auxiliary agent, 2-4 parts of flame retardant, 0.5-1 part ...

Embodiment 2

[0030] The first ceramic layer 4 is composed of ceramic fiber filaments tightly wound outside the metal core 1 to form a thickness; the second ceramic layer 5 is composed of ceramic fiber tapes spirally wound outside the inner skin 2 .

[0031] In the above arrangement, the helically wound ceramic fiber tape not only ensures the wire-making efficiency of the sheath 3, but also increases the degree of saturation of the second ceramic layer 5, thus improving the fireproof performance.

Embodiment 3

[0033] The inner skin 2 is nested with a metal shielding net 8 between the inner walls of the second ceramic layer 5; inside the metal shielding net 8, a plurality of tension bands 9 are arranged along the length direction.

[0034] In the above configuration, the metal shielding net 8 improves the anti-interference ability of the cable, and at the same time, the metal shielding net 8 and the tensile tape 9 provide the cable with strong tensile resistance and avoid breakage due to external force.

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Abstract

The invention relates to the technical field of wires and cables and especially relates to a double-layer ceramic insulation non-toxic irradiation-free electric wire and a manufacturing method. The double-layer ceramic insulation non-toxic irradiation-free electric wire comprises one or more metal cores, each metal core is wrapped with an inner skin one by one, an outer skin used for wrapping allthe inner skins and the metal cores is included, and each inner skin is composed of a first ceramic layer wrapping the metal core and a first irradiation-free layer wrapping the first ceramic layer; and the outer skin is sequentially provided with a second ceramic layer and a second irradiation-free layer from inside to outside. In the invention, a structure and ingredients of a traditional cableare optimally designed so that an irradiation-free performance index is improved on the premise of ensuring the indexes in all aspects.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to a double-layer ceramic insulated non-toxic radiation-free wire and a manufacturing method thereof. Background technique [0002] With the rapid economic development and the continuous improvement of living standards, human beings have an all-round increase in safety awareness, and the safety of electricity use is becoming increasingly strict. Since the fire-resistant cable can guarantee the emergency facilities and equipment to continue to run for a certain period of time within a reasonable period of time in the burning state, the firefighters won precious time for the escape of the trapped people in the fire. In this case, ceramic polymer composite materials (silicone rubber, polyolefin) fireproof cables came into being. [0003] At present, although most fire-resistant cables can pass the dual standard requirements of the porcelain performance test in the standard GB...

Claims

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Application Information

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IPC IPC(8): H01B7/02H01B3/44H01B7/17H01B7/18H01B13/012
CPCH01B3/441H01B7/0216H01B7/17H01B7/18H01B13/01263
Inventor 杨义展
Owner 杨义展
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