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First, the salt spray corrosion test chamber spray device: the use of tower spray device plus no crystalline nozzle, the use of double tower double measuring cylinder, strict implementation of standard quantification
.
Second, the adjustment device: if the spray volume of the salt spray test chamber deviates from the value specified in the standard, it can be improved in three ways: 1.
Adjust the height of the spray tower spire of the salt spray test chamber (such as the spray volume is lower than the standard quantification to raise the spire upwards, such as the spray volume is higher than the standard quantification to adjust the spire downward); 2, salt spray corrosion test chamber to adjust the air pressure (the standard test chamber factory spray air pressure is 0.
07-0.
17m3, if the spray amount is lower than the standard quantification can adjust the pressure up, if the spray volume is higher than the standard quantification, the pressure will be adjusted smaller) (Note: when the pressure is increased, special attention needs to be paid to whether the nozzle can withstand it, which needs to be confirmed with the manufacturer before adjustment, so as to avoid the nozzle rupture due to excessive pressure); 3, brine consumption is normal, but the amount of settlement is very small, in this situation, you should first check the tightness of the brine tank and the ratio of brine (brine should be replaced in about a week, such as long-term use of brine is not replaced, it will cause the salt component in the brine to be separated from the water, resulting in the concentration of the site is not accurate), and then check whether the nozzle is blocked, cracked, damaged
.
Note: Salt spray corrosion test chamber in the second test (or stop for a long time after starting again) in the case, the spraying process of salt water needs to first infiltrate the brine pipe, so the amount of settlement will be inaccurate, after 16 hours of normal boot use, the amount of salt spray spray and the amount of salt spray collected are normal
.
