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Wear-resistant, drag-resistant and low-temperature resistant flexible cable and fabrication method thereof

A flexible cable, low temperature resistant technology, applied in the field of power cables, can solve the problems of restricting the development technology level of the domestic equipment manufacturing industry, the reliability and stability of equipment supporting cables are not strong, and the procurement cycle is long. Symmetrical structure and long service life

Active Publication Date: 2017-02-01
JIANGSUSNGSHANG CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the reliability and stability of my country's equipment supporting cables are still not strong, and the cables used in the domestic manufacturing equipment field have to follow the imported route and rely on imports; the procurement cycle is long and the cost is high, which seriously restricts the development of the domestic equipment manufacturing industry. Technical level

Method used

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  • Wear-resistant, drag-resistant and low-temperature resistant flexible cable and fabrication method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0180] In step 3):

[0181] The conductor shielding material is extruded at 36°C in the first zone, 45°C in the second zone, and 57°C in the third zone;

[0182] Extrusion of insulation material in the first zone 93°C, in the second zone 98°C, in the third zone 111°C;

[0183] Insulation and shielding material extrusion zone 1 is 35°C, zone 2 is 44°C, zone 3 is 58°C, zone 4 is 71°C;

[0184] The temperature zones of the machine head unit are: Zone 1 104°C, Zone 2 108°C, Zone 3 113°C;

[0185] In step 4):

[0186] The temperature distribution in each area of ​​the fuselage is: 47°C in the first area, 75°C in the second area, and 93°C in the third area;

[0187] The temperature zones of the head unit are: Zone 1 82°C, Zone 2 86°C, Zone 3 93°C;

[0188] In step 6):

[0189] The temperature of each zone of the rubber extrusion machine body is: 80°C in the first zone, 55°C in the second zone, 60°C in the third zone, 66°C in the fourth zone, and 73°C in the fifth zone;

[0190...

example 2

[0195] In step 3):

[0196] The conductor shielding material is extruded at 30°C in the first zone, 40°C in the second zone, and 55°C in the third zone;

[0197] Extrusion of insulating material in the first zone 90°C, in the second zone 95°C, in the third zone 105°C;

[0198] Extrusion of insulating shielding material at 30°C in the first zone, 40°C in the second zone, 55°C in the third zone, and 60°C in the fourth zone;

[0199] The temperature zones of the head unit are: Zone 1 100°C, Zone 2 105°C, Zone 3 110°C;

[0200] In step 4):

[0201] The temperature distribution of each zone of the fuselage is: 40°C in the first zone, 70°C in the second zone, and 90°C in the third zone;

[0202] The temperature zones of the machine head unit are: zone 1 80°C, zone 2 85°C, zone 3 90°C;

[0203] In step 6):

[0204] The temperature of each zone of the rubber extrusion machine body is: 48°C in the first zone, 53°C in the second zone, 58°C in the third zone, 63°C in the fourth zone...

example 3

[0210] In step 3):

[0211] The conductor shielding material is extruded at 40°C in the first zone, 50°C in the second zone, and 60°C in the third zone;

[0212] Extrusion of insulation materials in the first zone 95°C, in the second zone 100°C, in the third zone 115°C;

[0213] Extrusion of insulating shielding material at 40°C in the first zone, 50°C in the second zone, 60°C in the third zone, and 75°C in the fourth zone;

[0214] The temperature zones of the head unit are: Zone 1 106°C, Zone 2 110°C, Zone 3 115°C;

[0215] In step 4):

[0216] The temperature distribution of each zone of the fuselage is: 50°C in the first zone, 80°C in the second zone, and 95°C in the third zone;

[0217] The temperature zones of the machine head unit are: Zone 1 85°C, Zone 2 88°C, Zone 3 95°C;

[0218] In step 6):

[0219] The temperature of each zone of the fuselage of the rubber extrusion machine is: 53°C in the first zone, 58°C in the second zone, 62°C in the third zone, 68°C in the ...

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Abstract

The structure of a wear-resistant, drag-resistant and low-temperature resistant flexible cable comprises a cable core, wherein the cable core is formed by twisting three main wire cores, three ground wire cores and a cable core gap semiconductive filler, each main wire core comprises a cross-linking wire core formed by co-extruding a conductor, a semiconductive nylon strap, a conductor shielding layer, an insulation layer and an insulation shielding steam continuous vulcanization layer, each ground wire core comprises a conductor and a semiconductive material steam continuous vulcanization extruded on a surface of the conductor, an isolation strip, an inner sheath, a fiber weaving reinforcement piece and an outer sheath are sequentially applied outside the cable core to form a finished cable, the conductors adopt tin-plated annealed copper conductors, filaments of the tin-plated annealed copper conductors are more slim, and the diameter ranges of the filaments are 0.1-0.41 millimeter. A cable fabrication method comprises the steps of fabricating the main wire cores and the ground wire cores; fabricating the cable core; winding an isolation strip; extruding the inner sheath; weaving the reinforcement layer; and performing steam continuous vulcanization extruding or radiating the cross-linking outer sheath. The cable fabricated according to the method can conform to the design and application requirements, and meanwhile, the qualified rate reaches over 99%.

Description

technical field [0001] The technical solution belongs to the technical field of power cables, in particular to a wear-resistant, drag-resistant, low-temperature resistant flexible cable and a manufacturing method thereof. Background technique [0002] In the prior art, major cities are actively constructing rail transit projects such as subways, light rails, and trains, which promotes the rapid development of the shield machine industry for tunnel excavation. The working environment and application requirements of tunneling shield equipment are special, and the geological environment of construction is significantly different. However, the existing medium-voltage cables for tunneling shield equipment in China cannot fully adapt to the construction requirements under different working conditions, such as cables are easy to be damaged, aging is fast and easy Cracking, poor weather resistance, poor environmental adaptability, and poor softness affect the actual use safety. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/18H01B9/02H01B7/28H01B13/00
CPCH01B7/04H01B7/1865H01B7/1875H01B7/28H01B9/02H01B13/00
Inventor 张东杰袁杰李斌刘雄军梁福才王雪松
Owner JIANGSUSNGSHANG CABLE GROUP
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