Drag chain cable and its preparation process

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...

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