nanning gui tide cable news: conductor of the outer layer of the "lantern" problem-非凡电子娱乐

now most of the cable companies in the production of tight pressure structure,

however, in the process of the production of tight circular conductor, it is often encountered that the outer layer of single line single lantern,

impact on product quality and production schedule will also cause economic losses.

so, how to effectively solve and avoid the pressure of the circular conductor of the outer layer of the lantern, is very concerned about each enterprise.

why should the conductor adopt a compact circular structure

the conductor adopts the tight pressing round structure as the result of natural selection of the fittest.

in many forms of conductor structure, the stranded circular conductor can improve the surface quality of the conductor because of its uniform electric field,

it can be widely used in wire and cable industry to reduce the external diameter of cable, save the cost of cable and reduce the weight of cable.

therefore, it is an urgent problem to solve the problem of the light from the conductor.

analysis of the causes of the lantern on the conductor outer layer

to investigate the mechanism of the production of compact conductor, and to ensure sufficient pressure coefficient,

in line with the production to prevent crosslinking embedding phenomenon, tight pressure coefficient are often higher than the large outer layer,

this leads to different pressure coefficient of each layer of the conductor, that is, each layer of a single line of force is different. the analysis of the single load of the outer layer is as follows:

traction f- conductor traction traction by the whole;

torque force n- frame rotation drives the monofilament disc, forming a twisted pitch;

the bending force w- is formed on the inner conductor by a single wire coating;

pressure t- outer layer of the outer layer of the pressure generated when drawing;

friction f- the friction force between the single layer of the same layer and the adjacent layer and the friction force between the two layers;

force generated by drawing force m- outer conductor.

the traction force of the conductor is f on the whole conductor, so the traction force of the single wire is the same,

traction is the force that drives the conductor, and it has little effect on the single line of the outer layer.

the torque force n determines the distance of a single line for a week, that is, the pitch, can not lead to a conductor from the lantern.

the bending force is negligible. the greater the pressure t is, the greater the friction force of the f and the die is in the drawing,

because of the good ductility of copper and aluminum, it is subject to greater friction and at the same time, due to its own material properties have a certain extension,

lead to the extension of the outer layer single line, single line can not offset the friction itself, to a certain extent after the accumulation of what we see as the "lantern".

however, when the outer conductor is drawn, the force f can not directly cause the phenomenon of the lantern, but the size of the force determines the size of the t,

therefore, the pressure t, the friction force f and the drawing force m are the key factors affecting the secondary outer conductor.

scheme for solving secondary outer conductor lamp

since the pressure t, friction force f and drawing force m is the key to the influence of the outer conductor, as long as the above three aspects can be.

first of all, in the design process of the conductor to determine the overall coefficient of compactness of the conductor, the coefficient of pressure of the outer layer is given after the determination of the overall coefficient of compaction,

under normal circumstances, the outer layer of the pressure coefficient between 0.85~0.90, the single line was drawn in the degree of 20%~38, generally do not recommend more than 40%.

in this way, when the coefficient of pressure of the outer layer is determined, the pressure coefficient of the outer layer can be effectively considered, and the coefficient of compression of the outer layer is between 0.82~0.85,

single wire drawing control between 12~25%. there is no possibility that a single value is very large and the values are very small,

otherwise, it will only lead to the phenomenon of the phenomenon of the conductor intensified.

however, some enterprises in the production of a sudden encounter with the phenomenon of lanterns, the whole conductor can not be segmented at this time.

in this case, it is possible to adjust the single line pitch of the conductor outer layer,

the reduction of single line spacing can be extended to a single line length of the small offset. at the same time, and single mode adjustment,

increase in single line angle, the single point is changed, and the single line tension fine-tuning,

in that single case will not be attenuated tension amplification. so, in the case of emergencies can effectively solve the lantern problem,

but this solution is not a major source of stress or starting from the time the outer wire.