| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for casting an aluminum with a casting metallic mold with which the productivity can be improved by shortening a cycle time in the casting process. SOLUTION: In the aluminum casting method, after filling nitrogen gas 80... and magnesium gas 81... into a cavity 27 in the closed casting metallic molds 22, the molten aluminum 39 is poured into the cavity 27. In the aluminum casting method, solid-state magnesium nitrides 82... are generated by reacting the nitrogen gas 80... and the magnesium gas 81... in the cavity 27 with the heat of the poured molten aluminum 39, and the pressure in the cavity 27 is reduced by generating the magnesium nitride 82..., and the oxidized film 39b produced on the surface 39a of the molten aluminum 39 is removed with the generated magnesium nitride 82....
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