| 摘要 |
PROBLEM TO BE SOLVED: To determine hermetic sealing performance of a hermetically sealed container accurately in a short time. SOLUTION: The inventive system for inspecting hermetic sealing performance of a hermetically sealed container 1 rigid enough to hold an inner pressure and having a head space between a filler and a cover part comprises a retort oven 6, a pressure regulating mechanism 15, an air gun 7, a second weight measuring unit 8, and a deciding section 14. The hermetically sealed container 1 is set in the retort oven 6 which can be filled with water such that the container 1 is submerged. The pressure regulating mechanism 15 regulates pressure in the retort oven 6 to generate a pressure difference between the inside and outside of the container 1. The air gun 7 removes water drop adhering to the container 1 taken out from the retort oven 6. The second weight measuring unit 8 detects the weight of the container 1 taken out from the retort oven 6. The deciding section 14 detects weight variation of the container 1 taken out from the retort oven 6 and makes a decision whether hermetic sealing performance of the container 1 is acceptable or not.
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