Patent ID: 9718123
Date: 2017-08-01
CPC Classifications: B22D

Claim:
1. A die casting method for pumping up molten metal with an electromagnetic pump and supplying the molten metal into a sleeve in a state of decompressing a cavity of a die and the inside of the sleeve attached to the die, comprising: moving the surface of the molten metal, with the electromagnetic pump, from a standard position to the side opposite to a supply direction of the molten metal; decompressing the cavity and the inside of the sleeve; preparing a pipe connecting the electromagnetic pump to the sleeve; disposing flow rate detectors detecting a flow of the molten metal on the parts of the pipe at a side of the electromagnetic pump and at a side of the sleeve; and weakening force of the electromagnetic pump, which pumps pumping down the molten metal to the side opposite to the supply direction to supply the molten metal into the sleeve.