What is a helium test machine?

Machine designed to test complete cells before electrolyte filling and sealing. The same type of machine can be used to check finished cells after filling and sealing, in particular using the helium as tracer gas when it has been filled in the cell with the electrolyte.

What is HMI helium recovery system?

HMI is made by a touch-screen color monitor.The equipment provides separate outlet ports for helium and air discharge and it is suitable to be connected to a helium recovery system. Output rate: 1 piece each 5 secs. (8 pcs each 40 secs.)

Can helium be used as a tracer gas?

During the electrolyte filling and before sealing, it could be allowed to add an inert gas like Helium inside the cell or to perform the sealing operation in an environment saturated with Helium. In this condition a test with Helium as tracer gas in vacuum chamber can be performed

How helium is used in a bombing cell?

The tested cell is firstly introduced into the bombing chamber, filled with high pressure Helium. In presence of a sealing defect in the housing, the helium will enter the cell. The cell is then moved to the vacuum chamber, where the helium will be free to exit from the cell through the same sealing defect.

How does a helium tracing machine work?

The same type of machine can be used to check finished cells after filling and sealing, in particular using the helium as tracer gas when it has been filled in the cell with the electrolyte. The machine provides two vacuum chambers, with automatic opening and closing, assembled on a welded and painted steel frame with movable panels.

What happens if helium leaks in a cell?

In presence of a sealing defect in the housing, the helium will enter the cell. The cell is then moved to the vacuum chamber, where the helium will be free to exit from the cell through the same sealing defect. The mass spectrometer will detect the presence of helium in the chamber and measure the size of the leakage