CENTRIFUGAL CASTING APPARATUS FOR MANUFACTURING COPPER CAGE ROTOR AND CENTRIFUGAL CASTING METHOD THE SAME

摘要

The present invention relates to a centrifugal casting apparatus for making squirrel-cage rotor, and more particularly the electrical conductivity good, high melting temperature of the copper material of the squirrel-cage rotor produced when the fine pores is prevented by centrifugation for which the error rate can be reduced copper squirrel cage rotor, and making the resulting casting apparatus that is related to the centrifugal casting method. The present invention is the iron piece that is provided with slits in the peripheral portion at the same time that the hole provided in the center of the laminated core in the axial direction; Is seated in the direction of the core shaft, and a lower heat insulating mold cavity is formed which is engaged with the bottom of the core, the lower mold to the lower bonding mold the insulation at the outside; Engaged with the lower mold and the axial thermal insulation, and the upper insulating mold surrounding the core, and bonding the upper mold on the outer insulation, the lower mold and the upper mold engaged; Located on top of the mold and the molten metal is injected into the gate portion; And mounted through a bore formed in the core, comprises the eject pin to form an upper mold and a heat-insulating cavity, eject pin is that it comprises at least one air outlet for discharging the air in the mold as the molten metal is injected features. ;