The test conditions, conditional tests, test procedures and environmental test marks of the salt spray test in the salt spray test chamber are applicable to optical instruments, instruments equipped with optical parts and optical parts, and their purpose is to coat the surface and protection ) The layer's resistance to salt spray is evaluated.
But there are suitability and unsuitability, what are the differences?
Suitability:
1. Evaluate the ability of optical and other functional coatings (plating) to resist salt spray corrosion;
2. Evaluate the anti-salt spray corrosion effect of metal and non-metal coating (plating) layer;
3. Early detection of unreasonable material combinations.
Unsuitability:
1. General corrosion test;
2. The true reproduction of the natural marine environment;
3. Evaluation of anti-corrosion measures for components separated from the installed device.
Note: The usual salt spray test should not be used to evaluate and compare the corrosion resistance of different materials or the corrosion resistance and service life of coatings exposed to changing weather conditions. To give a comparison of the performance of the salt spray test in the salt spray test chamber relative to natural conditions (such as the degree to which salt spray accelerates the corrosion rate of the sample), it is necessary to perform some related tests. For example, aluminum alloy, if it can be confirmed that the field test data has a certain correlation with the salt spray test results, you can get some different samples of the same or close to the metal through the salt spray test, or different samples of the same or comparable protective coating Working life.
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