Test device and test method for simulating atmospheric corrosion

Abstract

The invention relates to a test device and a test method for simulating atmospheric corrosion. The test device comprises a test box, an illumination module, a salt spray module for providing salt spray for the test box and a temperature and humidity module for adjusting the temperature and humidity in the test box, wherein a sample rack is arranged in the test box, and the illumination module forsimulating the solar illumination is arranged at the upper part of the test box and is positioned in an upper space of the sample rack. According to the present invention, a stable test environment isconducive to being provided, the sunlight irradiation can be simulated while atmospheric rainfall is simulated, the service environment of a sample under different working conditions can be simulated, the test conditions of the test device can be monitored and controlled effectively, and the comprehensive analysis to the sample is conducive.

Description

technical field [0001] The invention relates to a test device and a test method, in particular to a test device and a test method for simulating atmospheric corrosion. Background technique [0002] In active engineering, many steel structure buildings have been exposed to severe corrosion environment for a long time, which makes the components vulnerable to corrosion and even serious safety problems. Therefore, it is very important to analyze the corrosion resistance of metal materials. [0003] The salt spray chamber is a salt spray corrosion test device that simulates the acid rain environment in the natural environment and accelerates the corrosion of samples. The salt spray test is divided into 3 categories according to the type of corrosive salt solution: neutral salt spray (NSS) test, acetic acid salt spray (ASS) test and copper acetate salt spray (CASS) test. For example, Li Tao et al. carried out the copper acetate salt spray (CASS) test; Yi Jie et al. described th...

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Problems solved by technology

The salt spray test in the prior art is mostly devoted to the improvement of the temperature uniformity of the salt spray chamber, the temperature stability research and the salt spray sedimentation rate. However, metal materials are not only affected by acid rain but also by Influenced by comprehensive environmental factors such as temperature and light

Therefore, in the existing analysis of the corrosion performance of metal materials, the method of simulating atmospheric corrosion in a salt spray test chamber is mostly used in a single simulation condition, and it is impossible to simulate the test environment where multiple factors such as acid rain, temperature, light, and stress load act together.

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