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Salt spray corrosion test box is a kind of reliability test instrument to test the corrosion prevention function of hardware materials, electronic materials and other materials, it is mainly through the nozzle to spray salt water or acidic water to achieve the test effect, spray size, uniformity have a great impact on the
test results.
The finer the salt spray particles in the salt spray test chamber, the larger the surface area formed, the more oxygen is adsorbed, and the more
corrosive it is.
In nature, more than 90% of the salt spray particles have a diameter of less than 1 micron, and the research results show that the oxygen adsorbed on the surface of the salt spray particles with a diameter of 1 micron is relatively balanced with the oxygen dissolved inside the particles
.
No matter how small the salt spray particles, the amount of oxygen adsorbed no longer increases
.
Usually, the size of the spray does not need to be adjusted, of course, according to the test products or special requirements, or can be manually adjusted, then how to adjust the spray volume of the salt spray test machine, please see the following: 1, adjust the distance between the cone cover and the tower body on the spray tower, the distance is up, the spray amount increases, down, the spray amount decreases
.
2, if the above mediation can not increase or decrease the amount of spray, you can mediate the regulator, but do not mind, because this is the standard air pressure value 3, there is a possibility, is a foreign body in the nozzle, so it affects the amount of
spray.
Can be cleaned, the blockage is serious, it is recommended to replace
.
Here is a little advice, sodium chloride should be used better, do not choose the kind of easy crystallization
.