Electric cable and its conductor with recognition function, method and forming device for manufacturing the same

Abstract

The present invention relates to a kind of cable conductor of recognition function, the preparation method of such a cable and conductor, and their forming device. The conductor has the characteristic of over one grooves on the single conductor surface extend along axial direction of the conductor. The grooves which can be formed through roller pressing are both easy in process and unique in recognition. It is very easy to recognize when the stolen cable being stored and sold, thus the evidence of stealing is provided. In addition, the grooves which are formed on the conductor surface by roller pressing can adapt to high speed of wire traveling. The cable production will have fast speed and high efficiency, and can run with wire twist simultaneously or before wire collection of single conductor. The present invention will not introduce obviously increase of production cost; the produced grooves are smooth and have good straightness which will not lead to snake-like grooves and eliminate point discharge or electric corona of the grooves. The mold of roller is easy to make, hard to wear and has a long service life, which specifically suits for the forming of various sizes of single conductor grooves.

Description

technical field [0001] The invention relates to a single conductor for cable conductors, especially a cable conductor with identification function, a finished cable containing the conductor, and a preparation and molding device for identification marks on the conductor. Background technique [0002] The conductors of cables and wires are all metal materials with considerable value, and have high recycling value, especially copper conductors, which are relatively high in value, so they are concerned by a small number of people with poor awareness, which leads to the widespread phenomenon of cable theft. The annual loss is very huge, especially for some high-performance cables, and the loss caused by theft is even more serious. In the link of cable theft, the sale of stolen goods is a very important link. If there is no sale of stolen goods, the theft of cables will be greatly reduced. Most of the single conductors in the existing cable conductors are ordinary round conductor...

AI Technical Summary

Problems solved by technology

Most of the single conductors in the existing cable conductors are ordinary round conductors or shaped wire conductors without identification features, which makes it difficult for investigators to identify whether it is normal waste recycling or stolen cables in the link of cable sales. It is found that objectively, an embarrassing situation that is difficult to effectively investigate and deal with, thus making it difficult to effectively curb cable theft, has become a worldwide problem

[0003] From the perspective of electric energy transmission, in order to prevent undesired discharge and flashover, the surface of the conductor that makes up the wire must be smooth. If the surface of the conductor is not smooth, it will easily cause the concentration of the local electric field, causing tip discharge or corona, resulting in During use, the local temperature of the wire is too high, causing a decline in electrical and mechanical properties, severe or even broken; secondly, if the identification mark is too cumbersome, it will lead to an increase in the manufacturing cost of the conductor, and it will be difficult to popularize and apply. The reason objectively limits the easy application of permanent identification marks on the surface of the conductor, so the only round or profiled wires without identification features are used for cable conductors.

Although people know that if a permanent identification mark is applied on the surface of the cable conductor, it will have a great positive effect on investigating, disposing of stolen goods and curbing theft, but there is no effective and simple mark and application methods and tools, which has led to the long-term failure to apply on the cable conductor. Permanent identification marks, making it difficult to effectively curb theft

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