| 摘要 |
PCT No. PCT/JP93/01115 Sec. 371 Date Apr. 8, 1994 Sec. 102(e) Date Apr. 8, 1994 PCT Filed Aug. 9, 1993 PCT Pub. No. WO94/04298 PCT Pub. Date Mar. 3, 1994.A method for casting low specific gravity metal with ultra-fine features using high differential pressure wherein a melting chamber volume V1 and a casting chamber volume V2 are defined such that V1<V2, fusible casting material is melted with a melting plate under an inert gas atmosphere, a high differential pressure is established between the melting chamber and the casting chamber by introducing compressed inert gas into the melting chamber simultaneously with pouring the melt into a mold of the casting chamber, and the high differential pressure is held until the cast melt solidifies.
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