A multi-channel loading and corrosion electrolytic cell device considering the influence of tension and compression stress

Abstract

The invention provides a multi-channel loading and corrosion electrolytic cell device considering the influence of tension and compression stress, comprising: a PVC frame, a plurality of PVC brackets, and a plurality of loading bolts; the loading bolts rotate the threaded holes of the PVC frame base, The upper surface of the loading bolt is embedded in the bottom central groove of the PVC support; two rows of holes are opened on the top of the PVC frame 1: hole I and hole II; six equidistant threaded holes are opened on the bottom of the PVC frame, suitable for Equipped with six loading bolts; the bottom of the PVC frame is provided with a row of holes Ⅲ at the non-center line of the threaded holes, which are opposite to the holes Ⅳ of the PVC bracket in the vertical direction. In the present invention, by changing the loading mode, the working area of ​​the sample is subject to the bending stress of the same size, which ensures the consistency of stress monitoring and the accuracy of test results; the present invention is a multi-channel experimental device, which can also Based on the modification to adapt to the simultaneous experiment of more samples, compared with the single-channel experimental method, the test efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of marine engineering corrosion and protection, in particular to a multi-channel loading device and a corrosion electrolytic cell device considering the influence of tension and compression stress. Background technique [0002] At present, when the existing corrosion electrolytic cell device considering the influence of stress is used for the three-electrode electrochemical corrosion measurement test, the experimental stress loading device used is generally a three-point stress loading device ( figure 1 ) or single-channel four-point loading device ( figure 2 ), and both are metallic materials. [0003] Disadvantages of the three-point loading device: the three-point loading method, the working surface of the sample monitored by the electrochemical experiment is unevenly stressed, and the maximum stress appears on a line where the sample is deformed by the force; due to the maximum stress concentration of ...

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Problems solved by technology

[0003] Disadvantages of the three-point loading device: the three-point loading method, the working surface of the sample monitored by the electrochemical experiment is unevenly stressed, and the maximum stress appears on a line where the sample is deformed by the force; due to the maximum stress concentration of the three-point loading Appearing on a line, resulting in errors in structural stress monitoring in corrosion experiments considering stress, affecting experimental analysis, and inaccurate experimental results

[0004] Disadvantages of the single-channel four-point loading device: the experiment can only be performed on a single sample, and the experimental efficiency is low; the existing four-point loading device can only study the electrochemical behavior of the tensile stress surface of the sample, and cannot simultaneously test the compressive surface of the sample. Perform electrochemical monitoring

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