Processing technique of compound ingot of omnibus bar copper aluminum and equipment thereof

The invention discloses a manufacturing technique and equipment of conflux copper-aluminum draining composite ingot,which comprises the following steps: (1) fusing copper and aluminium separately to insulate; (2) solidifying and crystallizing the copper molten material into annular case through continuous ingot pulling; (3) conducting the molten aluminium into the annular case to condense and crystallize; connecting aluminium and copper to form copper-aluminium composite ingot. The equipment contains hauler, cooler, aluminium insulating stove, copper insulating furnace and diversion-recombiner, wherein the diversion-recombiner is placed on the bottom of molten pond of two insulating stoves, which contains aluminium liquid inlet, copper liquid entrance, aluminium liquid diversion pipe, copper liquid diversion pipe and composite cavity; the copper liquid diversion pipe is circulated around the periphery of aluminium liquid diversion pipe; the composite cavity lies in the molten effluent end of the diversion-rec