High-performance crosslinked ethylene and tetrafluoroethene copolymer insulated cable and preparation method thereof

A technology of cross-linked ethylene and tetrafluoroethylene, applied in the direction of insulated cables, cable/conductor manufacturing, insulated conductors, etc., can solve the problems of performance constraints of aerospace products, difficult insulation, mechanical properties and chemical stability, etc., to achieve tensile strength Effects of increased strength, excellent insulation, and reduced outer diameter

Inactive Publication Date: 2016-02-24
WUHU HANGTIAN SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, especially the performance of aerospace cables restricts the improvement of the overall performance of aerospace products, mainly because it is often difficult for current aerospace cables to have excellent insulation, mechanical properties, radiation resistance and chemical stability in a vacuum environment.

Method used

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  • High-performance crosslinked ethylene and tetrafluoroethene copolymer insulated cable and preparation method thereof
  • High-performance crosslinked ethylene and tetrafluoroethene copolymer insulated cable and preparation method thereof
  • High-performance crosslinked ethylene and tetrafluoroethene copolymer insulated cable and preparation method thereof

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preparation example Construction

[0024] The present invention also provides a method for preparing the above-mentioned high-performance cross-linked ethylene-tetrafluoroethylene copolymer insulated cable, comprising:

[0025] 1) extruding the cross-linked ethylene-tetrafluoroethylene copolymer on the outside of the wire 1 to form an insulating sleeve 2;

[0026] 2) The silver-plated aramid yarn is paralleled and woven on the outside of the insulating sleeve 2 to form a shielding sleeve 3;

[0027] 3) Extrude the cross-linked ethylene-tetrafluoroethylene copolymer on the outside of the shielding sheath 3 to form a sheath 4 .

[0028] In the above preparation method, the specific preparation method of silver-plated aramid fiber can be any conventional method in the art, but in order to further improve the insulation, mechanical properties, radiation resistance and vacuum environment of the insulated cable made Chemical stability, preferably, before step 2), the method also includes: soaking the aramid fiber in...

Embodiment 1

[0031] 1) Soak the aramid fiber in a hydrochloric acid solution with a concentration of 55% by weight, then take it out and plate a silver layer with a thickness of 1.0 μm on the outer surface of the aramid fiber to obtain a silver-plated aramid fiber.

[0032] 2) Twisting the centers of multiple strands of silver-plated copper wires in the same direction to form a conductor 1;

[0033] 3) Extruding the cross-linked ethylene-tetrafluoroethylene copolymer on the outside of the wire 1 to form an insulating sleeve 2 with a thickness of 0.15mm;

[0034] 4) The silver-plated aramid yarn is paralleled and woven on the outside of the insulating sleeve 2 to form a shielding sleeve 3 with a thickness of 0.05 mm;

[0035] 5) Extrude the cross-linked ethylene-tetrafluoroethylene copolymer on the outside of the shielding sheath 3 to form a sheath 4 with a thickness of 0.20 mm to obtain an insulated cable A1; wherein, the area of ​​the diameter section of the insulated cable is used as a b...

Embodiment 2

[0037] 1) Soak the aramid fiber in a sulfuric acid solution with a concentration of 60% by weight, then take it out and plate a silver layer with a thickness of 1.5 μm on the outer surface of the aramid fiber to obtain a silver-plated aramid fiber.

[0038] 2) Twisting the centers of multiple strands of silver-plated copper wires in the same direction to form a conductor 1;

[0039] 3) Extruding the cross-linked ethylene-tetrafluoroethylene copolymer on the outside of the wire 1 to form an insulating sleeve 2 with a thickness of 0.18 mm;

[0040] 4) The silver-plated aramid yarn is paralleled and woven on the outside of the insulating sleeve 2 to form a shielding sleeve 3 with a thickness of 0.08mm;

[0041] 5) Extrude the cross-linked ethylene-tetrafluoroethylene copolymer on the outside of the shielding sheath 3 to form a sheath 4 with a thickness of 0.22 mm to obtain the insulated cable A2; wherein, the area of ​​the diameter section of the insulated cable is used as a benc...

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Abstract

The invention discloses a high-performance crosslinked ethylene and tetrafluoroethene copolymer insulated cable and a preparation method thereof. The insulated cable comprises a lead (1), an insulation sleeve (2), a shielding sleeve (3) and a sheath (4), wherein the insulation sleeve (2), the shielding sleeve (3) and the sheath (4) sleeve the lead (1) successively from inside to outside, the insulation sleeve (2) and the sheath (4) include crosslinked ethylene and tetrafluoroethene copolymer sleeves respectively, and the shielding sleeve (3) is a silvered aramid fiber braided sleeve. The insulated cable prepared by the method is high in insulatiing, mechanical and radiation-hardening properties and is chemically stable in the vacuum environment.

Description

technical field [0001] The invention relates to cables, in particular to a high-performance cross-linked ethylene-tetrafluoroethylene copolymer insulated cable and a preparation method thereof. Background technique [0002] With the rapid and rapid development of today's science and technology and the urgent need for the modernization of national defense in our country, the military industry is developing in the direction of high technology and high speed. The technical level of aviation, aerospace, and weapons industry represents and symbolizes the strength of national defense. In order to meet the needs of the rapid development of national defense modernization, the supporting products are constantly being updated, and the electrification, automation, and systematization of equipment are constantly improving. The use of cables for "blood vessels and nerves" is increasing, which puts forward newer and higher requirements for the quality level, safety and reliability of prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/17H01B7/18H01B7/28H01B13/00
Inventor 米春海何想想王徐惠何源李倩向天波杜星
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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