| 摘要 |
PURPOSE: To consistently and continuously produce a formed product by introducing a half-melted metal whose dendrite is broken into a sleeve and forming. CONSTITUTION: In a precast forming device 1, a crucible 2B is placed at the pouring hole 16 of a sleeve 12 and an alumina base ceramic filter member 4 having a fine holes of 0.5-3mm one side is arranged at the bottom of the crucible 2B. At the time of supplying one shot of molten metal 3A for casting in a ladle 2A into the crucible 2B, the structure of molten metal becomes a half-melting state whose dendrite is broken with the filter member 4. This half-melting material 5 is depressed with a plunger tip 6 and poured into a cavity 9. By this method, the formed product excellent in mechanical property can be obtd. |
