System and method for evaluating ozone degradation of vulcanized rubber

The system addresses inefficiencies in ozone degradation evaluation by using a holding mechanism, camera, and calculation device to position and process images of multiple samples, achieving accurate and efficient ozone degradation assessment.

JP7769200B2Active Publication Date: 2025-11-13THE YOKOHAMA RUBBER CO LTD
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Patent Information

Application Number
JP2021194972
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-30
Publication Date
2025-11-13
Estimated Expiration
2041-11-30

AI Technical Summary

Technical Problem

Existing methods for evaluating ozone degradation of vulcanized rubber are inefficient and prone to variations due to human judgment, requiring sequential sample replacement and lacking accuracy in comparing samples with different specifications.

Method used

A system comprising a holding mechanism for multiple test samples, a camera device for image acquisition, and a calculation device for processing, which uses a movement mechanism to position samples at predetermined intervals and calculates an evaluation index based on image processing, ensuring accurate and efficient ozone degradation assessment.

Benefits of technology

The system enables objective evaluation of ozone degradation by reducing human judgment variations and allows simultaneous testing of multiple samples, enhancing efficiency and accuracy in ozone degradation assessment.

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Abstract

To provide a vulcanized rubber ozone deterioration evaluation system and a method which can accurately and efficiently evaluate ozone deterioration.SOLUTION: A vulcanized rubber ozone deterioration evaluation system holds a large number of test samples S by a holding part 2A in an extended sate, relatively moves at least one of the holding part 2A and a camera device 3 by controlling the movement of a movement mechanism 4 by a control part 5, sequentially positions each test sample S held by the holding part 2A or the camera device 3 at a prescribed imaging position for each preset elapsed time, acquires image data M in the front view of a surface Sf of each test sample S at the prescribed imaging position by the camera device 3 in such a state that a back plate 8 is arranged on a back side while emitting light by illumination means 7, and calculates an evaluation index Dx for evaluating an ozone deterioration degree of each test sample S by a calculation device 6 on the basis of the result of image processing on the image data M by the calculation device 6.SELECTED DRAWING: Figure 2
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