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Process treatment method for improving phase-compensated cable amplitude stability

A technology for stable phase cables and processing methods, applied in heat treatment equipment, cable/conductor manufacturing, circuits, etc., can solve problems such as unstable cable performance, achieve the effects of improving amplitude stability, stabilizing dimensions, and eliminating residual stress

Active Publication Date: 2019-07-09
中电航宇(昆山)技术有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that the performance of the existing phase-stable cables is unstable due to cold deformation and residual stress, the present invention provides a process method for improving the amplitude stability of the phase-stable cables , by baking the stable phase cable at high temperature to eliminate the residual internal stress of the silver-plated copper strip of the outer conductor, and by heat treatment to reach the stress relief annealing temperature of the copper metal, to eliminate the residual stress generated during cold deformation and mechanical processing, and stabilize size, thereby improving the amplitude stability of the entire product

Method used

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  • Process treatment method for improving phase-compensated cable amplitude stability

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Embodiment Construction

[0016] figure 1 It is the amplitude stability test chart of the phase-stable cable processed through the method of the present invention, figure 2 It is the amplitude stability test chart of the phase-stable cable that has not been processed by the method of the present invention.

[0017] A processing method for improving the amplitude stability of a phase-stable cable, comprising the following processing steps:

[0018] (1) Clean up the phase-stable cable and put it on the iron plate;

[0019] (2) Then put the phase-stable cable inverted to the iron plate into the vacuum aging box, and evacuate the vacuum aging box so that the air pressure in the vacuum aging box is evacuated to below -0.1MPa;

[0020] (3) Start the vacuum aging box again, and bake the phase-stable cable on the iron plate at a temperature of 200-240°C for 180-300Min;

[0021] (4) After the baking is completed, deflate the vacuum aging box so that the air pressure in the vacuum aging box is adjusted to 0M...

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Abstract

The invention relates to the field of the cable process treatment method, especially a process treatment method for improving phase-compensated cable amplitude stability. The process treatment methodcomprises the following steps: (1) cleaning a phase-compensated cable, and then inversing to an iron plate; (2) placing the phase-compensated cable fallen on the iron plate in a vacuum ageing oven, vacuumizing the vacuum ageing oven, and pumping the atmospheric pressure in the vacuum ageing oven to be -0.1MPa or below; (3) starting the vacuum ageing oven, and baking the phase-compensated cable fallen on the iron plate for 180-300Min at a temperature of 200-240 DEG C; and (4) after the baking is accomplished, bleeding air from the vacuum ageing oven, and adjusting the atmospheric pressure in the vacuum ageing oven to 0MPa; and finally taking out the phase-compensated cable fallen on the iron plate, and naturally cooling. The amplitude stability of the whole product is improved.

Description

technical field [0001] The invention relates to the field of cable processing methods, in particular to a processing method for improving the amplitude stability of phase-stable cables. Background technique [0002] Phased array radar antenna feed system and vector network analyzer, etc., require the coaxial feeder connected to it to have good phase stability to ensure tracking target and test accuracy, and ensuring phase stability is the current millimeter wave, microwave coaxial cable key research directions. Due to the particularity of the use of phase-stable cables, the current low-loss phase-stable cables are high-tech high-end products, and the technology is difficult. Especially in recent years, the overall performance of the product has been improved after continuous technical research in China, and it is close to the level of foreign products. There is still a big gap in stability and batch consistency, especially in amplitude stability. In the existing production...

Claims

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Application Information

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IPC IPC(8): H01B13/00
CPCH01B13/0016
Inventor 汤立鹏庞尔升杨戬陈贺
Owner 中电航宇(昆山)技术有限公司
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