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Processing technology of cable sheath

A processing technology and cable sheathing technology, which is applied in the field of cable sheathing processing technology, can solve the problems of exploding cable sheathing, bulging, and clamping mold of cable outer sheathing, and achieve the effect of stable outer diameter and lower production cost.

Inactive Publication Date: 2015-04-01
ZHANGJIAGANG JINHAIGANG WIRE & CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a cable sheath processing technology that can solve the problems of jamming, bulging and bursting in the extrusion process of the cable outer sheath.

Method used

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0016] A kind of processing technology of cable sheath of the present invention comprises the following steps:

[0017] (1) vulcanized inner sheath;

[0018] (2) Dry the polyester yarn before starting the machine, and place it for 3.5 hours;

[0019] (3) Vulcanize the outer sheath, and make the angle difference between the mold sleeve and the mold core 20 degrees, the distance between the die and the sheath is 4 times the thickness of the sheath, and the bearing diameter of the mold sleeve is 3.5 times the thickness of the inner sheath; it can effectively solve the outer sheath. The card mold problem of sheath production.

[0020] (4) Finishing operation of the outer sheath: extend the time for reducing the steam pressure to zero.

[0021] In s...

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Abstract

The invention discloses a processing technology of a cable sheath. The processing technology comprises the following steps: (1) vulcanizing an inner sheath; (2) drying polyester yarns before machine starting, and placing for 3-4 hours; (3) vulcanizing an outer sheath, so that the angular difference of a die sleeve and a die core is 15-30 degrees, the matched die distance is 3-5 times of the thickness of the sheath, the bearing diameter of the die sleeve is 3-4 times of the thickness of the inner sheath; (4) carrying out ending operation of the outer sheath, wherein the time for reducing the steam pressure is reduced to be zero. The processing technology can solve the problems, such as die clamping, bulging and cracking, of 10 km cables generated in the extruding process of a cable outer sheath, and thus the production cost is greatly reduced; moreover, the product appearance is beautiful, and the outside diameter is stable.

Description

technical field [0001] The invention relates to a processing technology of a cable sheath, which belongs to the technical field of cable processing. Background technique [0002] Due to the harsh working environment of the cable, it must bear tensile and torsional forces, and the performance of the sheath material declines rapidly. Existing cables generally use the combination of inner sheath, polyester filament braiding reinforcement and outer sheath to enhance the torsion resistance of the cable. [0003] The sheath structure is very difficult in terms of process realization, and mold jamming, bulging, and cracking often occur, which greatly increases the production cost. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a cable sheath processing technology capable of solving the problems of clamping, bulging and bursting in the extrusion process of the cable outer sheath. [0005] In orde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/24
Inventor 沈玉明
Owner ZHANGJIAGANG JINHAIGANG WIRE & CABLE
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