What is the working pressure range of the helium cylinder during leak detection

1. The working pressure of the helium cylinder during leak detection is at a safe pressure of 0.15MPa.

2. Helium leak detection is to use helium to check small holes in the electronic component packaging.

3. The small size of helium atoms can easily pass through the small holes and enter the inside of the shell to detect small holes.

4. Helium leak detection can detect small holes with a leak rate of about 10−11～10−12cm3/sec, with high sensitivity and simple leak detection methods.

5. Helium leak detection test steps:

(1) Put the packaged components into a container filled with helium, and pressurize to let the helium enter the shell through the small hole;

(2) After taking it out, use compressed air to blow off the residual helium on the surface of the shell;

(3) Use a mass spectrometer to detect the helium leaking from the outside of the tube shell.

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