The spray system of the salt spray test chamber consists of a compressed air supply, a brine tank and one or more sprayers. The material used to make the sprayer should not react with the salt solution. The sprayer should choose a device that produces fine, wet, and dense fog particles. How to make the salt mist form a mist and diffuse in the body of the salt spray test box? Everyone knows that if you want to spray first, there must be air pressure, and the test box spray uses compressed air, then the requirements: 1. The compressed air entering the sprayer must first remove impurities , Such as oil and sand. 2. Adjust the spray pressure appropriately so that the amount of salt spray settlement meets 1 ~ 2ml / 80cm2 · h. 3. To prevent salt deposits from clogging the sprayer, it is recommended that the relative humidity of the air at the nozzle should not be less than 85%. One possible method is to pass the air in the form of fine air bubbles through a water tower that automatically maintains the water level. The water temperature must not be lower than the test temperature.
Expanding knowledge: 1. The salt solution after spraying shall not be reused except for the baffle, 2. The salt spray shall not be directly sprayed on the test sample during the test, 3. The droplets accumulated on the wall or other parts of the salt spray test chamber shall not Drop on the test sample.
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