What Factors Affect the Test Results of Cyclic Corrosion Test Chamber

Nov 14, 2019

Temperature setting

If the device has a problem with the temperature setting of cyclic corrosion test chamber, it obviously has a big impact on the test data.

Concentration of brine

The standard concentration of brine should be 5%. If the concentration of brine is too high, the corrosion degree of the test product will be directly increased by the neutral salt spray test chamber.

Brine PH

As everyone knows, after the configured standard brine, salt water PH value should be between 6.5 and 7.2, belong to neutral, but in fact the purity of some salt did not achieve very pure, a problem or because the water quality and configuration of salt water PH value is beyond the scope of requirements, this requests us in the configuration of brine, should use the PH test paper to test the PH value, once the salt water PH value is higher than this standard, can add a few drops of hydrochloric acid to neutralize, if is lower than the standard, need to add some neutral sodium hydroxide, until PH up to par. If the ph of salt water is not up to the standard, it will directly affect the results of the neutral salt spray test chamber.

Settlement collection

We are in the process of daily use, often will encounter consumption is normal, settlement, however, is very small, once encounter this kind of situation, we must first consider brine is whether there is a leak, then consider whether there is a broken, nozzle set fog whether appear tilt of the funnel, set between the detector and funnel hose is congestion and other reasons.

Salt fog settlement problem

As the core index of neutral salt fog test chamber, salt spray deposited standard is 1 ~ 2 ml / 80 cm2 * h, if in the process of test, salt spray standard not reached settlement and it will affect the results of test out, in this case, you can through the experiment of salt water consumption for comparison.

Spray