| 摘要 |
PROBLEM TO BE SOLVED: To prevent the clogging of a piping and a hole used for adjusting the inner pressure. SOLUTION: The container is used for feeding the molten metal such as molten aluminum, wherein a through-hole 65 for adjusting the inner pressure is provided on a hatch 62, and a piping 66 for adjusting the inner pressure is connected to the through-hole 65, thereby enabling the sticking of a metal to the through-hole 65 for adjusting the inner pressure to be confirmed every time feeding the molten metal into the container 100. Therefor, the clogging of the piping 66 and the through-hole 65 used for adjusting the inner pressure can be previously prevented.
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