The salt spray corrosion test requires a salt spray test machine to produce 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 manufacturing the nozzle, the nozzle aperture, bending angle, etc. are strictly controlled to ensure that the standard salt spray can be produced. In practical applications, the nozzle is often blocked and ruptured, which affects the normal test. For this reason, Beijing Yashilin Testing Equipment Co., Ltd. introduces some small tricks to better protect the nozzle of the salt spray test machine.
1. Always use distilled or deionized water to reduce impurities in the water and reduce the chance of clogging the nozzle.
2. Install the oil-water separator to avoid the introduction of water vapor and oil in the air when compressing the air, so that the oil adheres to the nozzle wall. Due to the small pore size of the nozzle, both the impurities in the water and the oil adhering to it will affect the formation of salt spray.
3, to avoid impact, when installing the nozzle or blocking the nozzle after the dredge, you should pay attention to lightly handle, do not use excessive force to break the nozzle.
4. The spray pressure setting should not be too large. Under normal conditions, the pressure is between 0.07mp-0.17mp. If the pressure is too large, the nozzle will be broken.
If the amount of spray is too large/too small or not sprayed during the salt spray tester test, check that the nozzle is normal.
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