| 摘要 |
PROBLEM TO BE SOLVED: To prevent the entanglement of air when molten metal is injected and the generation of casting blow hole. SOLUTION: In a movable die 22b, a sealing pin 25 is arranged. The sealing pin 25 is shifted to a machine nozzle 11 side and this front end part is pushed to the contacting part 11b of the machine nozzle 11 to close a flowing passage for molten metal. The pressure in a product-forming part 10' in the die, is reduced with a vacuum source, and when the flowing passage for molten metal is opened by shifting the sealing pin 25, the molten metal flows into the product- forming part 10' in the die. The molten metal is solidified after filling up into the product-forming part 10' without entangling the air.
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