Silicone rubber aging degree judgment method and system based on RGB components

Abstract

The invention provides a silicone rubber aging degree judgment method and system based on RGB components. The method comprises: acquiring an outer surface slice image of cable accessory silicone rubber; processing the cable accessory silicone rubber outer surface slice image to obtain a target RGB component, and describing spatial color distribution data points according to the target RGB component; comparing the spatial color distribution data points with a preset aging degree data point set; and if the spatial color distribution data point and any preset aging degree data point in the preset aging degree data point set meet a similar condition, determining that the aging degree of the cable accessory silicone rubber is the same as the aging degree corresponding to the preset aging degree data point. The method for judging the aging degree of the silicone rubber based on the RGB component is simple and easy to implement, the aging degree can be intuitively and quantitatively represented, the distribution trend of corresponding data points in the coordinate axis along with the deepening of the aging degree can be obtained, and prediction and life evaluation are facilitated.

Description

Technical field [0001] The present invention relates to the field of silicone rubber aging detection techniques, and more particularly to a method and system of silicone rubber aging based on RGB components. Background technique [0002] Aging means that under certain environmental factors, the insulation material produces an irreversible change. Cable accessories will be accepted by electricity, heat and other environmental conditions, and the material is gradually aged, related electrical, mechanical and other performance changes. Its aging mechanism is oxygen pending into the rubber matrix, and the hydrogen atom in which the rubber macromolecular structure is weak, and the macromolecular free radical, the instability of the macromolecular free radical can initiate a subsequent oxidation process. The thermal environment can accelerate the penetration process of oxygen to the rubber matrix, and can reduce the energy barrier of the rubber oxidation reaction process, so the heat c...

AI Technical Summary

Problems solved by technology

[0004] The existing material aging diagnosis generally needs to prepare samples and carry out tests according to the corresponding test methods of electrical and mechanical properties. The test workload is heavy and some parameters are not sensitive to aging, which cannot directly reflect the aging state.

[0005] Silicone rubber materials for cable accessories are generally in a transparent state, and the color of the sample will change significantly with the deepening of the thermal aging degree. The naked eye can only roughly distinguish the difference between samples with different aging degrees, but cannot quantitatively judge the current aging state

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