| 摘要 |
A vacuum casting apparatus that performs casting through decompression of a cavity includes: an ejector pin for releasing a molding from a mold; a pinhole that is a hole in which the ejector pin is slidably arranged and that has a small diameter portion and a large diameter portion that is more distant from the cavity than the small diameter portion is and is larger in diameter than the small diameter portion; and a hollow portion that is provided under an end portion, on a side where the cavity is present, of the large diameter portion.
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