| 摘要 |
PROBLEM TO BE SOLVED: To reduce an area of which a powdery mold release agent is not adhered in a cavity of a mold, to evenly adhere the powdery mold release agent on the surface of the cavity, and to prevent the molten metal from burning to the mold in casting process. SOLUTION: The die casting machine has a powder feeding device 14 for feeding the powdery mold release agent into a cavity through a passage 13 for feeding powder connecting to one end of the cavity 8 in a mold 1, a vacuum suction structure for vacuumizing the cavity inside up through a passage 16 for vacuum suction connecting to the other end of the cavity and sucking the powdery mold release agent into the cavity, and a switch valve 23 between both passages 13, 16 for switching the connection of both passages, and according to the switch valve operation, the feeding direction to the cavity of the powdery mold release agent is switched over to the forward/reverse two directions. COPYRIGHT: (C)2004,JPO
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