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00001: Ensure complete emptying of air
| Step |
Step description |
Expected result |
Result |
| precondition |
system is off |
|
|
| Switch On the system |
turn on the pump |
95% vacuum |
negative |
| Having a leak |
Possibility of air leakage in places: welding-flanges-anode-cathode-tungsten-windows. |
Seal the leakage places |
positive |
| Switch Off the system |
turn Off the pump |
the pump stops pulling out the air |
positive |
| Silicon use |
Put silicon in places where air leaks |
Stop leakage and get 95% vacuum when we restart the pump. |
positive |
| Postcondition |
System is off |
|
|
Analysis of the test results:
In order to know the places of air leakage, we put water and soap on the surface of the device, and we compressed the air in the device;
When we find bubbles appearing, this indicates air leakage in this place.
What we have to do:
- we will re-weld in the previous welding places where there was leakage.
-we will change the seal at the flanges due to leakage.
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