| 摘要 |
PURPOSE: A method for testing leakage of a welding part of a tank made from a high quality material is provided to detect leakage of a welding part by measuring leakage of helium gas. CONSTITUTION: A method for testing leakage of a welding part of a tank made from a high quality material includes a step of closing an opening of a nozzle, a gas exhausting hole and a welding part of a tank by using a vinyl member(500). A helium gas is filled in the tank. A probe sensor(510) is sticking to the vinyl(500) after a predetermined time lapses under a predetermined pressure state in order to test the leakage of the welding part of the tank by detecting the helium gas in the vinyl through a helium detector(530).
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