Original source: Salt spray test chamber settlement can not meet the standard how to edit: Lin frequency instrument
The settlement is a measure to test whether the salt spray test chamber meets the requirements. The standard salt spray settlement is 1-2ml/80cm2.h. However, in the course of our use, the settlement of this test chamber often fails to meet the requirements. What is the middle problem? The following is a detailed explanation for you:
First, the salt spray test chamber is used for the first time.
The new test chamber was tested for the first time, and it is normal for the settlement to fall below the standard within 8 hours. After the salt spray is formed by the tower spray device, the salt liquid is collected by the funnel and then passed through the silicone tube to the metering cylinder. And because the tester was tested for the first time, the silicone tube was not very dry. When the salt liquid flowed into the pipeline, a part of the salt liquid would wet the pipeline. Therefore, it will lead to insufficient settlement. The test can be resumed after 16 hours.
Second, the salt spray test box has problems due to the settings
1. It is possible that the spray regulator is set too low and the spray regulator can be turned up.
2. The pressure setting is too low. Adjust the pressure of the regulating valve to 1kg/m2. If the air compressor is marked with a pressure regulating valve, adjust the pressure to 2kg/m2.
3. If the glass filter of the preheating tank is clogged, clean the glass filter.
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