The salt spray test chamber is a test that is carried out under conditions that are harsher than the actual conditions. The purpose is to obtain a relatively comparative result in a shorter time than the actual conditions. The problem of correlation is proposed with the development of the accelerated test. Correlation mainly refers to the relationship between the atmospheric exposure test and the corresponding accelerated test used. A large amount of data indicates that the correlation between different environments, different test methods and different materials is different, that is, to It is impossible to establish a fixed correlation by an accelerated test method, but it is feasible to establish correlations for specific materials, specific environments and specific methods.
The problem of correlation of salt spray test chambers has always been a difficult problem to solve. Although the main corrosion factors are due to sea salt particles, due to the different atmospheric corrosion components in various places, it is ultimately impossible to achieve the test by a single method. Looking for correlation and other reliability assessment basis. Although the second option reached 64% correlation, it is still not enough. The test shows that there are other factors not involved, such as temperature and humidity control, temperature can Accelerate the diffusion of humidity, thereby accelerating the corrosion rate; the wind speed factor, the coastal area is a multi-typhoon area, the typhoon will affect the atmospheric concentration, there is purification and humidification, etc. These factors all affect the test design. To get a good correlation test There are still many aspects to be studied. At present, the research on this field is still far from enough. Designing a reasonable and well-reacted corrosion effect under normal salt spray environment is the next step that needs to be solved. The problem. This has important implications for China in many seas.
The development status of salt water spray experimental boxes is divided according to the source of funds and technology. There are two main modes in the development of environmental testing industry in the world: one is based on domestic funds and technology, and the other is based on foreign capital and technology. Industrialized countries generally adopt the first model, while developing countries often adopt the second model due to conditional restrictions. Dongguan Ai Siwei, survive by quality, develop by credit, step into the golden age, Ai Siwei your choice!
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