| 摘要 |
PURPOSE: To provide a diecasting device provided with a die construction capable of enlarging the clearance of a suction path formed on the opposing face to the die for sucking air and gas remaining in a cavity by a vacuum source and communicating with an annular groove, in the case of casting a body part and an end ring of a motor rotor by a diecasting machine. CONSTITUTION: In first and second dies in contact with both ends of a laminated iron core held by a core metal, a plurality of pin gates linked with the annular groove for forming the end ring is formed, and by making the cross-sectional area of the gate part adequately large for sucking/exhausting the gas and air in the cavity, the cross-sectional area, that is the clearance, of the suction path formed on the opposing surface of the second die and a stationary die is formed large.
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