Manufacturing method for interlocked armored aluminum alloy flat cable

Abstract

The invention discloses a manufacturing method for an interlocked armored aluminum alloy flat cable. According to the manufacturing technology, the manufacturing method comprises the following steps in sequence: drawing wires, stranding a conductor, annealing the conductor, extruding an insulating layer, extruding a lining layer, and pressing an interlocked armored layer, wherein the conductor annealing step comprises the steps: through boxcar type heating and annealing steps, heating the stranded conductor to 370-400 DEG C, lasting for 4-5 hours at the environment of 370-400 DEG C, and then naturally cooling to the room temperature; and the interlocked armored layer pressing step is that an aluminum alloy tape with the thickness of 0.5mm-0.6mm is arranged on the surface of the lining layer and pressed into a Z-shaped interlocked armored form with the arc-shaped height of 2mm-4mm according to pitches of 6mm-24mm. according to the manufacturing method, the conductivity property and creep property can be improved, the service life of the cable can be effectively prolonged, the system can have good radiating effect in short time under overload state, and can be ensured to run safely.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a manufacturing method of an interlocking armored aluminum alloy flat cable. Background technique [0002] At present, the flat cables used in my country's cable industry have simple structures, single materials, and low safety levels. They are used under long-term harsh working conditions, and their ability to resist external mechanical damage is poor, which may easily lead to cracking and damage to the outer sheath of the cable. Moreover, the weight of the cable is heavy, the installation cost is quite high, and the corrosion resistance is poor, which affects the long-term service life of the cable. [0003] For example, the application number is CN201120118133.0, and the publication number is CN202049794U. The Chinese utility model patent "copper-clad aluminum core low-temperature resistant nitrile flat cable" discloses a copper-clad aluminum core low-temperature resistant nit...

AI Technical Summary

Problems solved by technology

The disadvantage of this patent is that the conductor adopts copper-clad aluminum core, which is a composite transition conductor. Because the melting point difference between copper and aluminum is too large, it is difficult to control the annealing temperature and annealing time during annealing, resulting in the conductivity of the conductor. , flexibility decreased; at the same time, in the process of twisting, extrusion, cabling and other processing processes, it is affected by compression and tension, which makes the aluminum wire overextended and causes the copper plating to fall off; secondly, the broken end of the material is easy to corrode, if it is used For grounding, usually the effect of grounding cannot be achieved

Moreover, the flat cable of this kind of structural material has very poor ability to resist external mechanical damage, which may easily lead to cracking and damage of the outer sheath of the cable.

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