Purpose Of Salt Spray Testing

Purpose of salt spray testing

To verify whether the metal parts on the product will corrode when exposed to the atmosphere or other environment. The product can be placed in the use environment for a long enough time, such as a product lifecycle. This is time-consuming and laborious, and rarely used in practice.
This requires a convenient way to evaluate the corrosion resistance of the product.
Salt spray testing is an accelerated corrosion resistance evaluation method for artificial atmospheres. It atomizes a certain concentration of brine and then sprays it in a closed thermostatic box to reflect the corrosion resistance of the tested sample by observing the changes of the tested sample placed in the box for a period of time. It is an accelerated test method, that is, it takes a short time, not years, only days, or even hours.
Although the salt spray test is an effective test method. However, due to many factors affecting corrosion, a single salt spray resistance can not be used as a representative of the resistance to other media, so the salt spray test results can not be used as a direct guide for the corrosion resistance of the tested material in all environments. At the same time, the performance of the material in the test can not be used as a direct guide to corrosion resistance in use. Nevertheless, the salt spray test method can still be used as a method of testing the material under test.

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