Method of preparing high-performance data connecting line and data connecting line

Abstract

The invention discloses a method of preparing a high-performance data connecting line, which comprises the following steps: (1) filling a cladding body with core wires: a preliminary data connecting line is extrusion-molded by a cable extrusion device, wherein the preliminary data connecting line includes four core wires and a filling cladding body wrapping the four core wires; (2) carrying out water-cooled forming on the preliminary data connecting line: the extrusion-molded preliminary data connecting line is treated by a water-cooled forming device so that the filling cladding body wrappingthe core wires is cooled and formed; (3) carrying out guiding, dividing and single-wire heating on the preliminary data connecting line; (4) winding a shielding layer; (5) twisting the four core wires: the four core wires are wound and stranded into an integral spiral core wire group in which the four core wires are twisted together; (6) coating the core wire group with a water blocking layer; and (7) carrying out extrusion molding. The data connecting line has excellent overall performance and can be used in various extremely harsh environments. The heat dissipation performance, sealing andwaterproofing performance, acid-alkali corrosion resistance and bending and stretching resistance are greatly improved.

Description

technical field [0001] The invention relates to the preparation of data lines, in particular to a preparation method of a high-performance data connection line and the data connection line. Background technique [0002] The current data connection line, the preparation process is generally four core wires, and then coated with aluminum foil shielding layer, and then extruded to cover the protective layer. Under the environment, for example, there is a big difference between low and high temperature, high humidity or even underwater environment, high corrosive environment or even buried in the ground, which requires frequent dragging, bending, stretching and folding, which is far from satisfactory. The current data line preparation and corresponding structure have the following deficiencies: 1. Insufficient tightness and protection. The four core wires are arranged directly and next to each other. Aluminum foil shielding layer and sheath protection layer, which will cause th...

AI Technical Summary

Problems solved by technology

[0002] The current data connection line, the preparation process is generally four core wires, and then coated with aluminum foil shielding layer, and then extruded to cover the protective layer. Under the environment, for example, there is a big difference between low and high temperature, high humidity or even underwater environment, high corrosive environment or even buried in the ground, which requires frequent dragging, bending, stretching and folding, which is far from satisfactory

The current data line preparation and corresponding structure have the following deficiencies: 1. Insufficient tightness and protection. The four core wires are arranged directly and next to each other. Aluminum foil shielding layer and sheath protection layer, which will cause the four core wires to be easily dislocated and loose, and greatly increase the core wire expansion and contraction caused by bending of the cable, and the stretching and pulling force of each core wire Inconsistency, the overall stability between the core wires is extremely poor, which leads to the fact that the data wires are easy to pull loose and fail when frequent dragging, bending, stretching and folding are required; the outer sides of the second and fourth core wires are only covered with aluminum foil shielding layer And the protective layer, its protective strength is insufficient, and its sealing, waterproof, acid and alkali corrosion resistance, and bending and tensile properties cannot meet the use in extreme environments; 3. The outside of the core wire is directly covered with aluminum foil shielding layer (aluminum film shielding layer) , due to the high hardness and slipperiness of the surface of the core wire itself, the coating of the aluminum film is not tight, and the aluminum film is easy to shift, wrinkle, tear and damage when it is bent; four or four core wires are arranged directly The coating is then uniformly coated with a general aluminum film shielding layer. Although it can shield external electromagnetic interference, it cannot produce a shielding effect on the self-interference between the core wire and the core wire. Moreover, the aluminum film shielding layer directly Covering four core wires, because there is a gap between the core wires, it is easy to form a heat-enclosed space inside the aluminum film shielding layer, and the heat generated by the metal conductors of the four core wires is concentrated and sealed in the aluminum film The shielding layer forms a heat-enclosed space, which is not easy to dissipate, and the heat dissipation effect is poor

Therefore, there are still many unreasonable places in the preparation method of the current high-performance data connection line and the data connection line, which need to be improved and perfected.

Images