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The use of salt spray corrosion testing machine and the suggestions for its use

2022-12-19

The purpose of the salt spray corrosion testing machine and its usage suggestions

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Salt spray corrosion principle: Most corrosion of metallic materials occurs in the atmospheric environment. The atmosphere contains corrosive components and corrosive factors such as oxygen, humidity, temperature changes and pollutants. Salt spray corrosion The corrosion of metals materials by salt spray is mainly due to the penetration of a conductive salt solution into the metal. Inside, an electrochemical reaction takes place to form a low potential metal-electrolyte solution - high potential impurity. span> Chloride ions play a major role in the process of salt spray corrosion, which has a strong penetrating power. It is easy to penetrate the metal oxide layer and enter the metal, destroying the passive state of the metal; at the same time, the chloride ion has a small hydration energy, so it is easy to adsorb to the metal. The surface replaces the oxygen in the oxide layer that protects the metal, damaging the metal. span The salt spray corrosion tester is a kind of corrosion tester mainly used to measure salt spray test equipment used to and in a highly corrosive environment, to prevent dust from clogging the spray port.
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