How to maintain the nozzle of the salt spray test chamber

The salt spray corrosion test requires the salt spray test chamber to generate salt spray. The key is that the test solution is sprayed through a nozzle under a certain pressure of compressed air. The quality of the nozzle directly affects the success or failure of the test. When the nozzle is manufactured, the aperture and bending angle of the nozzle are strictly controlled to ensure that the standard salt mist can be produced. In practical applications, the nozzles are often blocked and broken, which affects the normal operation of the test. Here are some tips to better protect the nozzles of the salt spray test chamber.

1. Be sure to use distilled or deionized water to reduce impurities in the water and reduce the chance of clogging the nozzle.

2. Install an oil-water separator to prevent the water vapor and oil in the air from being brought in when the air is compressed, so that the oil will adhere to the nozzle wall. Due to the small aperture of the nozzle, both impurities in the water or attached oil will affect the formation of salt spray.

3. the salt spray test chamber Avoid impact. When installing and using the nozzle or blocking the nozzle, you must be careful to handle it gently, and do not use excessive force to damage the nozzle.

4. Do not set the spray pressure to be too large, the pressure is between 0.07mp-0.17mp under normal conditions, and the pressure is too large to easily break the nozzle. The above are the daily precautions for some nozzles. If the spray volume is too large/small or does not spray during the test of the salt spray chamber, then check whether the nozzle is normal. If the nozzle hole is too large, it should be replaced. If it is blocked, use a thin iron wire to gently pass it.