Corrosion test device with in-situ electrochemical test function

Abstract

The invention relates to a corrosion test device with a field in-situ electrochemical test function in a natural sea area environment, belonging to the technical field of electrochemical corrosion tests. The main structure of the corrosion test device comprises a reference electrode lead wire, an auxiliary electrode lead wire, an auxiliary electrode, a reference electrode, a probe shell, a samplesealing structure shell, a sealing ring, a pressure spring, a fastening bolt, a sample and a sample lead wire, wherein an electrochemical test probe and a sample sealing structure are designed into split type structures; the electrochemical test probe consists of the reference electrode, the reference electrode lead wire, the auxiliary electrode and the probe shell and is rotated to the sample sealing structure through screw threads positioned at the front of the probe shell; the sample sealing structure shell is processed by and made of plastic and nylon or other non-metal materials; and thesample or the researched electrode is hermetically fixed by the O-shaped sealing ring and sealing stuffing. The invention has simple and reliable structural principle, convenient use and operation and good test accuracy.

Description

Technical field: [0001] The invention belongs to the technical field of electrochemical corrosion tests, and relates to a corrosion test device capable of performing in-situ electrochemical tests in a natural sea environment. Background technique: [0002] Materials and their components are affected by natural environmental factors during use, and gradually corrode, age, or even fail. Different natural environments lead to great differences in the corrosion and aging properties of materials due to the influence of natural environmental conditions, resulting in great differences in the environmental adaptability of materials in different natural environments. At present, the method of establishing a natural environment test station (field) in a typical natural environment is generally adopted in the world. Through the natural environment test of materials, the corrosion and aging laws of materials in various natural environments and the influence of changes in natural environ...

AI Technical Summary

Problems solved by technology

However, most of the existing electrochemical tests are based on laboratory conditions, and have not been well applied to the in-situ detection of natural seawater environmental tests. The main reason is that the existing natural seawater environmental test devices cannot directly perform electrochemical tests. In addition, in-situ electrochemical test results will be affected by tidal currents and sample edge effects. Therefore, the field application of electrochemical test technology needs to design a reasonable test device to minimize the impact of external factors on electrochemical test results. influences

To sum up, the existing technology generally has the disadvantages of complex in-situ electrochemical testing process, poor testing accuracy, obvious influence of environmental conditions, complex structure of the device used, inconvenient use and operation, poor safety and stability, etc.

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