Method for manufacturing instrument cable

A technology for instrument cables and manufacturing methods, applied in the direction of cable/conductor manufacturing, conductor/cable insulation, circuits, etc., to achieve the effects of preventing interference, soft cables, and low dielectric loss of insulation

Inactive Publication Date: 2013-03-13
李青余
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cable signal transmission is required to have higher stability, low loss, reliability, anti-interference, multi-functionality, etc., but the existing instrument cables are difficult to achieve the above functions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Copper conductors and foamed polyethylene insulation materials that meet the relevant standards for instrument cables are used, and the skin-foam-skin three-layer co-extrusion production process is used to complete the conductor wire drawing and skin-foam-skin insulation process at one time. The conductor has an insulating inner skin, Insulated wire core with foam insulation and insulation sheath. Each pair of insulated wire cores is twisted into a pair of twisted wire groups, each pair of twisted wire groups is provided with a certain pitch, and multiple pairs of twisted wire groups of the cable core are respectively provided with different pitches. Use twisted wires with different pitches to form a cable, and wrap the tape on the outer surface of the cable core. Braided copper wire or wrapped copper tape shielding on the tape. A low-smoke, halogen-free, flame-retardant, environmentally friendly outer sheath is extruded on the shielding layer.

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PUM

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Abstract

Disclosed is a method for manufacturing an instrument cable. The method includes that (1) a copper conductor which accords with the relevant standards and regulations of the instrument cable is utilized, and an expanded polyethylene insulating material is extruded and wrapped on the copper conductor to form insulated wire cores by a skin-foam-skin three-layer co-extrusion technology; (2) each two insulated wire cores prepared in the step (1) are subjected to pair twist to form pair twist wire groups, the pair twist wire groups are provided with various pitches, pitches of the same pair twist wire group are equal, pair twist wire groups with different pitches are selected to form the cable, and a tape is wrapped on the outer surface of a cable core. A copper wire is woven on the wrapped tape, or a copper tape shielding layer is wrapped on the wrapped tape, and a low smoke halogen-free flame retardant environment-friendly outer sheath is extruded and wrapped on the shielding layer. The method for manufacturing the instrument cable has the advantages that the method is advanced and scientific, low capacitance, low transmission attenuation and low insulation medium loss of the cable are achieved by means of designing of the conductor skin-foam-skin insulating wire core and the like, the signal transmission is stable, the shielding effect is good, and performance requirements of the cable used in modern instruments are met.

Description

technical field [0001] The invention relates to a manufacturing method of a cable, in particular to a manufacturing method of a cable used in instruments and meters, and belongs to the technical field of cables. Background technique [0002] With the progress of society, the development of science and technology and the improvement of automation, the use of instruments and meters in all walks of life is increasing, and the requirements for the speed, sensitivity, stability and more convenient use of instruments and meters are also increasing. At the same time, new requirements are put forward for the cables matching the instruments. Cable signal transmission is required to have higher stability, low loss, reliability, anti-interference, multi-functionality, etc., but the existing instrument cables are difficult to achieve the above functions. Contents of the invention [0003] The purpose of the present invention is to provide a high-performance, high-precision, high-sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B13/14H01B13/02H01B13/24H01B13/26
Inventor 李青余
Owner 李青余
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