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Large-pair-number shielding cable

A cable and logarithmic technology, applied in the field of large logarithmic shielded cables, can solve the problems of poor electromagnetic shielding effect, poor effect, unstable data signal transmission, etc., achieve stable signal transmission, good effect, and improve electromagnetic interference. Effect

Active Publication Date: 2014-06-25
江西一舟数据技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The relative position between the large logarithm cable pairs is stable and the structure is compact, but the electromagnetic shielding effect between the cables is poor, and the data signal transmission is unstable and the effect is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] According to the composition and mass percentage of the aluminum foil of Example 1 in Table 1, the batching was carried out, and then the batching was heated to 750° C. for melting, and after standing for 5 minutes, deslagging and degassing refining were carried out. After refining, the alloy solution is poured into an alloy ingot at 710°C, then the temperature is lowered to 555°C for 3 hours, and then lowered to 470°C for 3 hours. Then the alloy ingot was hot-rolled, the rolling temperature was 460° C., and the final rolling temperature was 300° C. After the hot rolling, it was cold-rolled to prepare an aluminum foil with a thickness of 8 μm. After the aluminum foil is prepared, it is annealed to obtain a finished aluminum foil. The annealing temperature is 230° C., the heating time is 16 hours, and the holding time is 15 hours. Finally, the PVC film reinforcement layer with a thickness of 8 μm and the prepared aluminum foil were bonded by an adhesive to obtain a doubl...

Embodiment 2

[0040] According to the composition and mass percentage of the aluminum foil of Example 2 in Table 1, the batching was carried out, and then the batching was heated to 765° C. for melting, and after standing for 7 minutes, deslagging and degassing refining were carried out. After refining, the alloy solution is poured into an alloy ingot at 725°C, then the temperature is lowered to 565°C for 3 hours, and then lowered to 480°C for 2 hours. Then the alloy ingot was hot-rolled, the rolling temperature was 480° C., and the final rolling temperature was 320° C. After the hot rolling, it was cold-rolled to prepare an aluminum foil with a thickness of 10 μm. After the aluminum foil is prepared, it is annealed to obtain a finished aluminum foil. The annealing temperature is 245° C., the heating time is 18 hours, and the holding time is 12 hours. Finally, the PE film reinforcement layer with a thickness of 6 μm and the prepared aluminum foil were bonded by an adhesive to obtain a doubl...

Embodiment 3

[0043] According to the composition and mass percentage of the aluminum foil of Example 3 in Table 1, the batching was carried out, and then the batching was heated to 780° C. for melting, and after standing for 10 minutes, deslagging and degassing refining were carried out. After refining, the alloy solution is poured into an alloy ingot at 750°C, then the temperature is lowered to 580°C for 3 hours, and then lowered to 500°C for 1.5 hours. Then the alloy ingot was hot-rolled, the rolling start temperature was 490° C., and the final rolling temperature was 340° C. After the hot rolling, it was cold-rolled to prepare an aluminum foil with a thickness of 6 μm. After the aluminum foil is prepared, it is annealed to obtain a finished aluminum foil. The annealing temperature is 260° C., the heating time is 18 hours, and the holding time is 13 hours. Finally, the PET film reinforcement layer with a thickness of 10 μm and the prepared aluminum foil were bonded by an adhesive to obta...

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Abstract

The invention relates to a large-pair-number shielding cable. The cable comprises a center pipe, first cable pairs, a first shielding layer, second cable pairs, an isolating layer, a second shielding layer and a restrictive coating, wherein the first cable pairs are annularly arranged on the surface of the outer circumference of the center pipe, the first shielding layer wraps the first cable pairs, the second cable pairs are annularly arranged on the surface of the outer circumference of the first shielding layer, the isolating layer wraps the second cable pairs, the second shielding layer wraps the isolating layer, and the restrictive coating wraps the second shielding layer. The first shielding layer and the second shielding layer are made of double-layer aluminum foil. The double-layer aluminum foil comprises a first aluminum foil layer and a second aluminum foil layer, and a strengthening layer is arranged between the first aluminum foil layer and the second aluminum foil layer. The large-pair-number shielding cable is good in electromagnetic shielding effect, stable in signal transmission, good in effect and compact in structure. In the actual wiring construction process, the relative position between the cable pairs cannot be changed irregularly under the condition that the cable is affected by external force, the overall quality of the cable is stable, and the service life is long.

Description

technical field [0001] The invention relates to a large logarithm cable, in particular to a large logarithm shielded cable. Background technique [0002] For a modern building, the integrated wiring system is like the nerves in the body. It uses a series of high-quality standard materials to combine voice, data, image and some control signal systems with a unified transmission medium. Synthesis, through unified planning and design, integrated in a standard wiring system, organically connects the three major subsystems of modern buildings, and provides a physical medium for system integration of modern buildings. It can be said that the success of the structured cabling system is directly related to the success or failure of a modern building, and it is very important to choose a high-quality integrated cabling system. On a certain floor of a building, the structured cabling method of laying cables from the telecommunications wiring closet to workstations and other network e...

Claims

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Application Information

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IPC IPC(8): H01B11/02H01B11/06
Inventor 张林赵天明张克强苗艳李华亮
Owner 江西一舟数据技术有限公司
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