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Drag chain cable and its preparation process

A towline cable and equipment technology, applied in the direction of cable/conductor manufacturing, insulated cable, bendable cable, etc., can solve the problem of no towline cable, etc., to facilitate dragging, increase flexibility, excellent mechanical properties and electrical properties Effect

Active Publication Date: 2015-10-28
NANJING QUANXIN CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there is no relevant drag chain cable standard in the cable industry. On the basis of referring to GB / T 5023-2008 PVC insulated cables with rated voltage of 450 / 750V and below, the relevant performance of the product in special environments is added: ①Cold resistance; ②Salt spray resistance; ③Moisture resistance; ④Aging resistance; ⑤Mold resistance and other properties, fully considering special requirements such as high strength and softness

Method used

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  • Drag chain cable and its preparation process
  • Drag chain cable and its preparation process

Examples

Experimental program
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Effect test

Embodiment

[0031] The sheath material adopts the extrusion process of low temperature resistant elastomer sheath material, extruded with 65-type extruder equipment, and adopts a double-flight screw with a compression ratio of 25:1:

[0032] Process flow: preparation—mold matching—heating—adjustment of mold—extrusion control—completion

[0033] 1) Preparation: equipment inspection, electrical inspection, turning on the power of the equipment, preparing production tools and product process cards;

[0034] 2) Mold matching: the inner diameter of the mold core d = the outer diameter of the stranded wire + (0.20 ~ 0.50) mm, the inner diameter of the mold sleeve = the nominal outer diameter of the finished product + (-0.1 ~ 0.1) mm; after the mold is determined, install the filter, Filter plate and die head, and feed after confirming that there is no debris in the hopper;

[0035] 3) Heating: After turning on the heating power, set the temperature of each section according to the extruded ma...

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Abstract

The invention relates to a towline cable and a manufacturing process thereof. The towline cable structurally comprises a conductor, an insulator, a tensile core, an inner sheath and an outer sheath. The radiation ethylene propylene rubber insulator is arranged on the periphery of the conductor, the low temperature resistant elastic body inner sheath is arranged on the periphery of the radiation ethylene propylene rubber insulator, and the flexible polyurethane outer sheath is arranged on the periphery of the inner sheath. The manufacturing process is that a tinned copper wire is stranded by a wire cable stranding machine to server as the conductor, an extruder device is utilized to extrude the environment-friendly radiation ethylene propylene rubber insulator on the outside of the conductor, the stranding machine is utilized to strand high-strength tensile fibers, flexible polyvinyl chloride (PVC) is extruded by the extruder device on the outer layer to serve as the tensile core, then a cabling machine is utilized to strand an insulation wire core and the tensile core together, and the extruder device is utilized to extrude low temperature elastic body sheath materials to serve as the sheaths. The cable has the advantages of high mechanical strength, flexibility, high abrasion resistance, aging resistance, cracking resistance, mould resistance, moisture resistance and acid-base corrosion resistance, is flexible under the low temperature condition and suitable for special environments such as weapons, electronics, high-level civil use.

Description

technical field [0001] The invention relates to a towline and its preparation process. The towline cable can adapt to work in narrow and harsh environments such as weapons, electronics, and high-end civil applications. It has high mechanical strength, high wear resistance, aging resistance, crack resistance, mold resistance, moisture resistance and It is resistant to acid and alkali corrosion, and has excellent mechanical and electrical properties. Background technique [0002] At present, there is no relevant drag chain cable standard in the cable industry. On the basis of referring to GB / T 5023-2008 PVC insulated cables with rated voltage of 450 / 750V and below, the relevant performance of the product in special environments is added: ①Cold resistance; ②Salt spray resistance; ③Moisture resistance; ④Aging resistance; ⑤Mold resistance and other properties, fully considering special requirements such as high strength and softness. It is formulated according to the special re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/04H01B7/17H01B7/18H01B7/28H01B7/02H01B13/00
Inventor 许宪成张立伟何丽坚陈祥楼赖洪林
Owner NANJING QUANXIN CABLE TECH
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