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Nitrogen cabinet is to regulate nitrogen injection into the
cabinet, and achieve dehumidification and oxidation prevention. Nitrogen
cabinet is widely used in semiconductor factory, crystal oscillator factory and
precision component factory. It is mainly used for moisture-proof and oxidation
protection. For the factory, the moisture-proof and anti-oxidation preservation
of these precision parts plays an important role in the yield of production to
ensure the quality.
In the normal use of nitrogen cabinet, how to evaluate its performance, users
are generally reading the humidity of nitrogen cabinet distinguish.
The working principle of nitrogen cabinet is to fill the
cabinet with nitrogen, gradually replace the original air in the cabinet, and
then achieve a relatively anaerobic and dry storage environment. If the
humidity of the nitrogen c
abinet is not up to standard, the moisture-proof and
oxidation-proof effect of the storage items in the cabinet will decrease.
Nitrogen cabinet humidity can’t meet the requirements, that is, the
concentration of nitrogen in the cabinet can’t meet the requirements. For a
limited sealed cabinet, its concentration can’t reach, only “air intake” and
“air outlet” two reasons.
“Air outlet” represents the sealing of the cabinet, partial filled-in nitrogen
leak out . When the leakage is too large, the nitrogen concentration in the
cabinet will be lower, and the humidity will be low, and it will not be able to
protect against moisture and oxidation.
The “intake air” represents the insufficient amount of
nitrogen in the nitrogen cabinet In the process of using the nitrogen cabinet,
due to the frequent opening of the cabinet door, the amount of nitrogen
escaping from the switch door is larger than the amount of nitrogen filled into
the cabinet, and the expected nitrogen concentration can’t be reached.
The solution is divided into two parts, one is the sealing of the cabinet, the
other is the increase of air intake. Manufacturers should avoid sealing problems,
and intake valve failure in the N2 cabinet.
Learn more, pls visit our website: https://www.dry-cabinet.cn/prolists2.html
